FUEL TECH N V
SC 13D, 1998-05-06
INDUSTRIAL & COMMERCIAL FANS & BLOWERS & AIR PURIFING EQUIP
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934

                                 Fuel-Tech N.V.
                                 --------------
                                (Name of Issuer)

                          Common Stock, $.01 Par Value,
                          -----------------------------
                      and Warrants to Purchase Common Stock
                      -------------------------------------
                         (Title of Class of Securities)

                                    359523107
                                 --------------
                                 (CUSIP Number)

                                 Ralph E. Bailey
                         c/o American Bailey Corporation
                              695 East Main Street
                           Stamford, Connecticut 06901
                                 (203) 348-8700
                                 --------------
 (Name, Address and Telephone Number of Person Authorized to Receive Notices and
                                 Communications)

                                 April 30, 1998
                                 --------------
             (Date of Event which Requires Filing of this Statement)

          If the filing person has previously  filed a statement on Schedule 13G
to report the  acquisition  which is the subject of this  Schedule  13D,  and is
filing this Schedule because of Rule 13d-1(b)(3) or (4), check the following
box [  ]



                                                              Page 1 of 20 pages


<PAGE>




- ---------------------------------            -----------------------------------
CUSIP No.  359523107                                 Page 2 of 20 Pages

- ---------------------------------            -----------------------------------

- ------- ------------------------------------------------------------------------
   1    NAME OF REPORTING PERSON
        I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

        Ralph E. Bailey

- ------- ------------------------------------------------------------------------
   2    CHECK THE APPROPRIATE BOX IF A MEMBER                           (a) [X] 
        OF A GROUP (See Instructions)                                   (b) [ ]
- ------- ------------------------------------------------------------------------
   3    SEC USE ONLY

- ------- ------------------------------------------------------------------------
   4    SOURCE OF FUNDS (See Instructions)
        PF
- ------- ------------------------------------------------------------------------
   5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
        TO ITEMS 2(d) or 2(e)                                               [ ]
- ------- ------------------------------------------------------------------------
   6    CITIZENSHIP OR PLACE OF ORGANIZATION
        United States
- --------------------------------------------------------------------------------
                       7     SOLE VOTING POWER
                             0
    NUMBER OF       -------  ---------------------------------------------------
      SHARES           8     SHARED VOTING POWER
   BENEFICIALLY              7,750,000
     OWNED BY       -------  ---------------------------------------------------
       EACH            9     SOLE DISPOSITIVE POWER
    REPORTING                4,650,000
      PERSON        -------  ---------------------------------------------------
       WITH           10     SHARED DISPOSITIVE POWER
                             400,000
- ---------------------------  ---------------------------------------------------
  11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
        5,050,000
- ------- ------------------------------------------------------------------------
  12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
        SHARES (See Instructions)                                           [ ]
- ------- ------------------------------------------------------------------------
  13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
        28.6%
- ------- ------------------------------------------------------------------------
  14    TYPE OF REPORTING PERSON (See Instructions)
        IN
- ------- ------------------------------------------------------------------------



<PAGE>



- ---------------------------------            -----------------------------------
CUSIP No.  359523107                                 Page 3 of 20 Pages

- ---------------------------------            -----------------------------------

- ------- ------------------------------------------------------------------------
   1    NAME OF REPORTING PERSON
        I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

        Douglas G. Bailey

- ------- ------------------------------------------------------------------------
   2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                (a) [X] 
        (See Instructions)                                              (b) [ ]
- ------- ------------------------------------------------------------------------
   3    SEC USE ONLY

- ------- ------------------------------------------------------------------------
   4    SOURCE OF FUNDS (See Instructions)
        PF
- ------- ------------------------------------------------------------------------
   5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
        TO ITEMS 2(d) or 2(e)                                               [ ]
- ------- ------------------------------------------------------------------------
   6    CITIZENSHIP OR PLACE OF ORGANIZATION
        United States
- ---------------------------  ---------------------------------------------------
                       7     SOLE VOTING POWER
                             0
    NUMBER OF       -------  ---------------------------------------------------
      SHARES           8     SHARED VOTING POWER
   BENEFICIALLY              7,750,000
     OWNED BY       -------  ---------------------------------------------------
       EACH            9     SOLE DISPOSITIVE POWER
    REPORTING                1,912,500
      PERSON        -------  ---------------------------------------------------
       WITH           10     SHARED DISPOSITIVE POWER
                             400,000
- ---------------------------  ---------------------------------------------------
  11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
        2,312,500
- ------- ------------------------------------------------------------------------
  12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
        SHARES (See Instructions)                                           [ ]
- ------- ------------------------------------------------------------------------
  13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
        11.8%
- ------- ------------------------------------------------------------------------
  14    TYPE OF REPORTING PERSON (See Instructions)
        IN
- ------- ------------------------------------------------------------------------



<PAGE>



- ---------------------------------            -----------------------------------
CUSIP No.  359523107                                 Page 4 of 20 Pages

- ---------------------------------            -----------------------------------

- ------- ------------------------------------------------------------------------
   1    NAME OF REPORTING PERSON
        I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

        Nolan R. Schwartz

- ------- ------------------------------------------------------------------------
   2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                (a) [X] 
        (See Instructions)                                              (b) [ ]
- ------- ------------------------------------------------------------------------
   3    SEC USE ONLY

- ------- ------------------------------------------------------------------------
   4    SOURCE OF FUNDS (See Instructions)
        PF
- ------- ------------------------------------------------------------------------
   5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
        TO ITEMS 2(d) or 2(e)                                               [ ]
- ------- ------------------------------------------------------------------------
   6    CITIZENSHIP OR PLACE OF ORGANIZATION
        United States
- ---------------------------  ---------------------------------------------------
                       7     SOLE VOTING POWER
                             0
    NUMBER OF       -------  ---------------------------------------------------
      SHARES           8     SHARED VOTING POWER
   BENEFICIALLY              7,750,000
     OWNED BY       -------  ---------------------------------------------------
       EACH            9     SOLE DISPOSITIVE POWER
    REPORTING                225,000
      PERSON        -------  ---------------------------------------------------
       WITH           10     SHARED DISPOSITIVE POWER
                             100,000
- ---------------------------  ---------------------------------------------------
  11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
        325,000
- ------- ------------------------------------------------------------------------
  12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
        SHARES (See Instructions)                                           [ ]
- ------- ------------------------------------------------------------------------
  13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
        1.8%
- ------- ------------------------------------------------------------------------
  14    TYPE OF REPORTING PERSON (See Instructions)
        IN
- ------- ------------------------------------------------------------------------



<PAGE>



- ---------------------------------            -----------------------------------
CUSIP No.  359523107                                 Page 5 of 20 Pages

- ---------------------------------            -----------------------------------

- ------- ------------------------------------------------------------------------
   1    NAME OF REPORTING PERSON
        I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

        Guy C. Heckman

- ------- ------------------------------------------------------------------------
   2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                (a) [X] 
        (See Instructions)                                              (b) [ ]
- ------- ------------------------------------------------------------------------
   3    SEC USE ONLY

- ------- ------------------------------------------------------------------------
   4    SOURCE OF FUNDS (See Instructions)
        PF
- ------- ------------------------------------------------------------------------
   5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
        TO ITEMS 2(d) or 2(e)                                               [ ]
- ------- ------------------------------------------------------------------------
   6    CITIZENSHIP OR PLACE OF ORGANIZATION
        United States
- ------------------  -------  ---------------------------------------------------
                       7     SOLE VOTING POWER
                             0
    NUMBER OF       -------  ---------------------------------------------------
      SHARES           8     SHARED VOTING POWER
   BENEFICIALLY              7,750,000
     OWNED BY       -------  ---------------------------------------------------
       EACH            9     SOLE DISPOSITIVE POWER
    REPORTING                125,000
      PERSON        -------  ---------------------------------------------------
       WITH           10     SHARED DISPOSITIVE POWER
                             100,000
- ------------------  -------  ---------------------------------------------------
  11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
        225,000
- ------- ------------------------------------------------------------------------
  12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
        SHARES (See Instructions)                                           [ ]
- ------- ------------------------------------------------------------------------
  13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
        1.3%
- ------- ------------------------------------------------------------------------
  14    TYPE OF REPORTING PERSON (See Instructions)
        IN
- ------- ------------------------------------------------------------------------



<PAGE>



- ---------------------------------            -----------------------------------
CUSIP No.  359523107                                 Page 6 of 20 Pages

- ---------------------------------            -----------------------------------

- ------- ------------------------------------------------------------------------
   1    NAME OF REPORTING PERSON
        I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

        J. William Drake

- ------- ------------------------------------------------------------------------
   2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                (a) [X] 
        (See Instructions)                                              (b) [ ]
- ------- ------------------------------------------------------------------------
   3    SEC USE ONLY

- ------- ------------------------------------------------------------------------
   4    SOURCE OF FUNDS (See Instructions)
        PF
- ------- ------------------------------------------------------------------------
   5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
        TO ITEMS 2(d) or 2(e)                                               [ ]
- ------- ------------------------------------------------------------------------
   6    CITIZENSHIP OR PLACE OF ORGANIZATION
        United States
- ------------------  -------  ---------------------------------------------------
                       7     SOLE VOTING POWER
                             0
    NUMBER OF       -------  ---------------------------------------------------
      SHARES           8     SHARED VOTING POWER
   BENEFICIALLY              7,750,000
     OWNED BY       -------  ---------------------------------------------------
       EACH            9     SOLE DISPOSITIVE POWER
    REPORTING                125,000
      PERSON        -------  ---------------------------------------------------
       WITH           10     SHARED DISPOSITIVE POWER
                             100,000
- ------------------  -------  ---------------------------------------------------
  11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
        225,000
- ------- ------------------------------------------------------------------------
  12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
        SHARES (See Instructions)                                           [ ]
- ------- ------------------------------------------------------------------------
  13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
        1.3%
- ------- ------------------------------------------------------------------------
  14    TYPE OF REPORTING PERSON (See Instructions)
        IN
- ------- ------------------------------------------------------------------------



<PAGE>



- ---------------------------------            -----------------------------------
CUSIP No.  359523107                                 Page 7 of 20 Pages

- ---------------------------------            -----------------------------------

- ------- ------------------------------------------------------------------------
   1    NAME OF REPORTING PERSON
        I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

        Robert M. Davenport

- ------- ------------------------------------------------------------------------
   2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                (a) [X] 
        (See Instructions)                                              (b) [ ]
- ------- ------------------------------------------------------------------------
   3    SEC USE ONLY

- ------- ------------------------------------------------------------------------
   4    SOURCE OF FUNDS (See Instructions)
        PF
- ------- ------------------------------------------------------------------------
   5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
        TO ITEMS 2(d) or 2(e)                                               [ ]
- ------- ------------------------------------------------------------------------
   6    CITIZENSHIP OR PLACE OF ORGANIZATION
        United States
- ------------------  -------  ---------------------------------------------------
                       7     SOLE VOTING POWER
                             0
    NUMBER OF       -------  ---------------------------------------------------
      SHARES           8     SHARED VOTING POWER
   BENEFICIALLY              7,750,000
     OWNED BY       -------  ---------------------------------------------------
       EACH            9     SOLE DISPOSITIVE POWER
    REPORTING                125,000
      PERSON        -------  ---------------------------------------------------
       WITH           10     SHARED DISPOSITIVE POWER
                             37,500
- ------------------  -------  ---------------------------------------------------
  11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
        162,500
- ------- ------------------------------------------------------------------------
  12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
        SHARES (See Instructions)                                           [ ]
- ------- ------------------------------------------------------------------------
  13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
        0.9%
- ------- ------------------------------------------------------------------------
  14    TYPE OF REPORTING PERSON (See Instructions)
        IN
- ------- ------------------------------------------------------------------------



<PAGE>



- ---------------------------------            -----------------------------------
CUSIP No.  359523107                                 Page 8 of 20 Pages

- ---------------------------------            -----------------------------------

- ------- ------------------------------------------------------------------------
   1    NAME OF REPORTING PERSON
        I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

        Betsy S. Kenyon

- ------- ------------------------------------------------------------------------
   2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                (a) [X] 
        (See Instructions)                                              (b) [ ]
- ------- ------------------------------------------------------------------------
   3    SEC USE ONLY

- ------- ------------------------------------------------------------------------
   4    SOURCE OF FUNDS (See Instructions)
        PF
- ------- ------------------------------------------------------------------------
   5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
        TO ITEMS 2(d) or 2(e)                                               [ ]
- ------- ------------------------------------------------------------------------
   6    CITIZENSHIP OR PLACE OF ORGANIZATION
        United States
- ------------------  -------  ---------------------------------------------------
                       7     SOLE VOTING POWER
                             0
    NUMBER OF       -------  ---------------------------------------------------
      SHARES           8     SHARED VOTING POWER
   BENEFICIALLY              7,750,000
     OWNED BY       -------  ---------------------------------------------------
       EACH            9     SOLE DISPOSITIVE POWER
    REPORTING                75,000
      PERSON        -------  ---------------------------------------------------
       WITH           10     SHARED DISPOSITIVE POWER
                             25,000
- ------------------  -------  ---------------------------------------------------
  11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
        100,000
- ------- ------------------------------------------------------------------------
  12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
        SHARES (See Instructions)                                           [ ]
- ------- ------------------------------------------------------------------------
  13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
        0.6%
- ------- ------------------------------------------------------------------------
  14    TYPE OF REPORTING PERSON (See Instructions)
        IN
- ------- ------------------------------------------------------------------------



<PAGE>



- ---------------------------------            -----------------------------------
CUSIP No.  359523107                                 Page 9 of 20 Pages

- ---------------------------------            -----------------------------------

- ------- ------------------------------------------------------------------------
   1    NAME OF REPORTING PERSON
        I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

        James G. Hannoosh

- ------- ------------------------------------------------------------------------
   2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                (a) [X] 
        (See Instructions)                                              (b) [ ]
- ------- ------------------------------------------------------------------------
   3    SEC USE ONLY

- ------- ------------------------------------------------------------------------
   4    SOURCE OF FUNDS (See Instructions)
        PF
- ------- ------------------------------------------------------------------------
   5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
        TO ITEMS 2(d) or 2(e)                                               [ ]
- ------- ------------------------------------------------------------------------
   6    CITIZENSHIP OR PLACE OF ORGANIZATION
        United States
- ------------------  -------  ---------------------------------------------------
                       7     SOLE VOTING POWER
                             0
    NUMBER OF       -------  ---------------------------------------------------
      SHARES           8     SHARED VOTING POWER
   BENEFICIALLY              7,750,000
     OWNED BY       -------  ---------------------------------------------------
       EACH            9     SOLE DISPOSITIVE POWER
    REPORTING                50,000
      PERSON        -------  ---------------------------------------------------
       WITH           10     SHARED DISPOSITIVE POWER
                             12,500
- ------------------  -------  ---------------------------------------------------
  11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
        62,500
- ------- ------------------------------------------------------------------------
  12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
        SHARES (See Instructions)                                           [ ]
- ------- ------------------------------------------------------------------------
  13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
        0.4%
- ------- ------------------------------------------------------------------------
  14    TYPE OF REPORTING PERSON (See Instructions)
        IN
- ------- ------------------------------------------------------------------------



<PAGE>



- ---------------------------------            -----------------------------------
CUSIP No.  359523107                                 Page 10 of 20 Pages

- ---------------------------------            -----------------------------------

- ------- ------------------------------------------------------------------------
   1    NAME OF REPORTING PERSON
        I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

        Geneve E. Hendricks

- ------- ------------------------------------------------------------------------
   2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                (a) [X] 
        (See Instructions)                                              (b) [ ]
- ------- ------------------------------------------------------------------------
   3    SEC USE ONLY

- ------- ------------------------------------------------------------------------
   4    SOURCE OF FUNDS (See Instructions)
        PF
- ------- ------------------------------------------------------------------------
   5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
        TO ITEMS 2(d) or 2(e)                                               [ ]
- ------- ------------------------------------------------------------------------
   6    CITIZENSHIP OR PLACE OF ORGANIZATION
        United States
- ------------------  -------  ---------------------------------------------------
                       7     SOLE VOTING POWER
                             0
    NUMBER OF       -------  ---------------------------------------------------
      SHARES           8     SHARED VOTING POWER
   BENEFICIALLY              7,750,000
     OWNED BY       -------  ---------------------------------------------------
       EACH            9     SOLE DISPOSITIVE POWER
    REPORTING                37,500
      PERSON        -------  ---------------------------------------------------
       WITH           10     SHARED DISPOSITIVE POWER
                             12,500
- ------------------  -------  ---------------------------------------------------
  11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
        50,000
- ------- ------------------------------------------------------------------------
  12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
        SHARES (See Instructions)                                           [ ]
- ------- ------------------------------------------------------------------------
  13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
        0.3%
- ------- ------------------------------------------------------------------------
  14    TYPE OF REPORTING PERSON (See Instructions)
        IN
- ------- ------------------------------------------------------------------------



<PAGE>



- ---------------------------------            -----------------------------------
CUSIP No.  359523107                                 Page 11 of 20 Pages

- ---------------------------------            -----------------------------------

- ------- ------------------------------------------------------------------------
   1    NAME OF REPORTING PERSON
        I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

        Lindsay G. Mortner

- ------- ------------------------------------------------------------------------
   2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                (a) [X] 
        (See Instructions)                                              (b) [ ]
- ------- ------------------------------------------------------------------------
   3    SEC USE ONLY

- ------- ------------------------------------------------------------------------
   4    SOURCE OF FUNDS (See Instructions)
        PF
- ------- ------------------------------------------------------------------------
   5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
        TO ITEMS 2(d) or 2(e)                                               [ ]
- ------- ------------------------------------------------------------------------
   6    CITIZENSHIP OR PLACE OF ORGANIZATION
        United States
- ------------------  -------  ---------------------------------------------------
                       7     SOLE VOTING POWER
                             0
    NUMBER OF       -------  ---------------------------------------------------
      SHARES           8     SHARED VOTING POWER
   BENEFICIALLY              7,750,000
     OWNED BY       -------  ---------------------------------------------------
       EACH            9     SOLE DISPOSITIVE POWER
    REPORTING                25,000
      PERSON        -------  ---------------------------------------------------
       WITH           10     SHARED DISPOSITIVE POWER
                             12,500
- ------------------  -------  ---------------------------------------------------
  11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
        37,500
- ------- ------------------------------------------------------------------------
  12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
        SHARES (See Instructions)                                           [ ]
- ------- ------------------------------------------------------------------------
  13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
        0.2%
- ------- ------------------------------------------------------------------------
  14    TYPE OF REPORTING PERSON (See Instructions)
        IN
- ------- ------------------------------------------------------------------------



<PAGE>


                                                                   Page 12 of 20
                                  Introduction

          This Schedule 13D is being filed in order to report the acquisition of
an  aggregate  of (i)  4,750,000  shares of common  stock,  $.01 par value  (the
"Common  Stock"),  and (ii) warrant  rights to purchase an additional  3,000,000
shares of Common  Stock,  of Fuel-Tech  N.V.,  a  Netherlands  Antilles  limited
liability  company (the "Issuer") by the group of individuals  reporting  herein
(each,  a  "Reporting  Person",  collectively,  the  "Reporting  Persons").  The
Reporting  Persons  purchased  all of the shares and  warrants  in a  securities
purchase  transaction  (closed  April 30,  1998)  among  Issuer  and each of the
Reporting Persons pursuant to a securities  purchase agreement dated as of March
23,  1998  (the  "Securities  Purchase  Agreement").  All of the  shares  and/or
warrants,  as the case may be, that were obtained by each Reporting  Person were
obtained  individually  and for his or her own account.  In connection with this
transaction,  the  Reporting  Persons  and/or Issuer also executed and delivered
several other agreements,  including a shareholders  agreement dated as of April
30,  1998 among  Issuer and each of the  Reporting  Persons  (the  "Shareholders
Agreement")  (discussed  immediately  below  and in  Item  6),  a  share  pledge
agreement  among all of the  Reporting  Persons and a third party  (discussed in
Item 6), and certain call agreements among the Reporting  Persons  (discussed in
Item 6).

          Pursuant to the Shareholders  Agreement,  the Reporting  Persons share
their voting power solely with respect to their  obligation to vote all of their
shares of Common Stock in favor of Issuer's four (4) designees on Issuer's board
of  directors.  Also  pursuant to said  Shareholders  Agreement,  the  Reporting
Persons  collectively  possess  rights (i) to nominate  three (3) members of the
board of  directors  of Issuer and (ii) to select at least 50% of the members of
the board of directors of Issuer's wholly owned  subsidiary,  Fuel Tech, Inc., a
Massachusetts  corporation.  (The eighth  member of Issuer's  board of directors
must be a  Netherlands  Antilles  person  mutually  agreeable  to  Issuer  and a
majority of the shares of the Reporting Persons.)


Item 1.   Security and Issuer.

          The class of equity  securities  to which  this  Schedule  relates  is
Issuer's  Common  Stock,  $.01 par  value.  The  Issuer  is  Fuel-Tech  N.V.,  a
Netherlands  Antilles limited  liability  company,  and its principal  executive
offices are located at Castorweg 22-24, Curacao, Netherlands Antilles.

Item 2.   Identity and Background.

          This Schedule 13D is being filed on behalf of the  following  group of
Reporting Persons: Ralph E. Bailey, Douglas G. Bailey, Nolan R. Schwartz, Guy C.
Heckman,  J. William Drake,  Robert M.  Davenport,  Betsy S. Kenyon,  Lindsay G.
Mortner, James G. Hannoosh, and Geneve E. Hendricks. Ralph E. Bailey and Douglas
G. Bailey are (or expect shortly to become) directors of Issuer.



<PAGE>

                                                                   Page 13 of 20



          Each of the  Reporting  Persons has a business  address  c/o  American
Bailey Corporation,  695 East Main Street,  Stamford,  CT 06901. American Bailey
provides  management  services  to  various  businesses.  Each of the  Reporting
Persons has the present principal  occupation or employment that is indicated by
the title(s) set forth directly opposite his or her name:

Ralph E. Bailey       Chairman of the Board

Douglas G. Bailey     CEO and President

Nolan R. Schwartz     Vice President

J. William Drake      Vice President

Guy C. Heckman        Vice President

Robert M. Davenport   Vice President and Treasurer

Betsy S. Kenyon       Vice President and Secretary

Lindsay G. Mortner    Assistant Secretary

James Hannoosh        Consultant

Geneve Hendricks      System Administrator


          No Reporting  Person nor any other person named above has,  during the
last five years,  been  convicted in a criminal  proceeding  (excluding  traffic
violations or similar misdemeanors),  or been a party to a civil proceeding of a
judicial or  administrative  body of competent  jurisdiction  and as a result of
such proceeding was or is subject to a judgment, decree or final order enjoining
future violations of, or prohibiting or mandating activities subject to, federal
or state  securities  laws or finding any violations  with respect to such laws.
Each Reporting Person is a United States citizen.

Item 3.   Source and Amount of Funds or Other Consideration.

          All  of the  Common  Stock  purchased  by the  Reporting  Persons  and
reported herein was obtained as a result of cash payment.  Each Reporting Person
was the sole source of the cash consideration paid for the Common Stock.

Item 4.   Purpose of Transaction.

          The Common Stock was acquired primarily for investment  purposes.  The
Reporting Persons intend to review on a continuing basis their investment in the
Issuer and the Issuer's business,  prospects and financial  condition.  Based on
such continuing review,  alternative investment  opportunities  available to the
reporting  persons and all other factors  deemed  relevant  (including,  without
limitation,  the market for and price of the Common Stock,  offers for shares of
the Common Stock, general economic conditions and other

<PAGE>

                                                                   Page 14 of 20



future  developments),  the  Reporting  Persons may  decide,  subject to certain
restrictions  contained in the Securities Purchase  Agreement,  the Shareholders
Agreement and related agreements, to sell or seek the sale of all or part of the
Common Stock or increase their holdings of the Common Stock.

          The  Reporting  Persons hope to influence the operation of Issuer in a
manner that will improve the performance of the Reporting Persons' investment in
Issuer. In this regard, pursuant to the Shareholders'  Agreement,  the Reporting
Persons have obtained the rights (i) to nominate three (and reasonably  withhold
approval of another) of Issuer's eight board members and (ii) to select at least
50% of  the  members  of  the  board  of  directors  of  Issuer's  wholly  owned
subsidiary,  Fuel Tech, Inc. (see  Introduction  above;  see also Item 6 below).
However,  except for  acquiring  and  exercising  the  afore-mentioned  director
nomination  rights,  the Reporting  Persons currently have no plans or proposals
that relate to or would result in any of the  consequences  listed in paragraphs
(a) - (j) of Item 4 of the Special Instructions for Complying With Schedule 13D.

Item 5.   Interest in Securities of the Issuer.

          (a) and (b) Set forth in the table below are the number and percentage
of shares of Issuer Common Stock  beneficially  owned by each  Reporting  Person
named in Item 2 as of the date hereof,  which  persons  collectively  comprise a
group within the meaning of ss.13(d)(3) of the Act.  (These figures  include the
warrant rights to purchase  Issuer Common Stock (held by each  Reporting  Person
other than Ralph E. Bailey),  which rights are exercisable  until April 30, 2008
at an exercise price of $1.75 subject to certain upward or downward  adjustments
based on possible  future  occurrences  such as the  consolidation  or merger of
Issuer or the reclassification, split or subdivision of the Common Stock.)
<TABLE>
<CAPTION>

                           Number of Shares     Number of Shares      Number of Shares         Aggregate       Percentage of
                          Beneficially Owned      Beneficially       Beneficially Owned    Numbers of Shares       Shares  
                             With Shared         Owned With Sole         With Shared         Beneficially       Beneficially
Name                         Voting Power       Dispositive Power     Dispositive Power          Owned             Owned
- ----                         ------------       -----------------     -----------------          -----             -----
<S>                          <C>                   <C>                     <C>                 <C>                 <C>  
Ralph E. Bailey              7,750,000(1)          4,650,000               400,000             5,050,000           28.6%
Douglas G. Bailey            7,750,000(1)          1,912,500(2)            400,000             2,312,500           11.8%
Nolan R. Schwartz            7,750,000(1)            325,000(3)            100,000               325,000            1.8%
Guy C. Heckman               7,750,000(1)            225,000(4)            100,000               225,000            1.3%
J. William Drake             7,750,000(1)            225,000(4)            100,000               225,000            1.3%
Robert M. Davenport          7,750,000(1)            162,500(4)             37,500               162,500            0.9%
Betsy S. Kenyon              7,750,000(1)            100,000(4)             25,000               100,000            0.6%
James G. Hannoosh            7,750,000(1)             62,500(4)             12,500                62,500            0.4%
Geneve E. Hendricks          7,750,000(1)             50,000(4)             12,500                50,000            0.3%
Lindsay G. Mortner           7,750,000(1)             37,500(4)             12,500                37,500            0.2%
</TABLE>

- ------------------
(1) All of the shares of Issuer Common Stock owned by the Reporting Persons have
    shared  voting  power with  respect to the  election of directors of Issuer;
    thus, none of such shares can be characterized as having sole voting rights.
    However,  with  respect  to any other  matter,  the  Reporting  Persons  are
    entitled  to  vote  their  shares  of  Common  Stock  (but  not  the  shares
    represented by their unexercised warrant rights) in any legal manner.



<PAGE>
                                                                   Page 15 of 20



(2) Includes  75,000  shares of Common  Stock and warrant  rights to purchase an
    additional 1,837,500 shares of Common Stock.

(3) Includes  25,000  shares of Common  Stock and warrant  rights to purchase an
    additional 300,000 shares of Common Stock.

(4) Includes  no shares of Common  Stock  but only  warrant  rights to  purchase
    shares of Common Stock.

(5) The sole basis upon which  certain  Related  Persons  share the  dispositive
    power of warrant rights  (exercisable within sixty days) to purchase certain
    shares of Issuer  Common  Stock is a series of Call  Agreements  dated as of
    March 23, 1998 between Ralph E. Bailey and Douglas G. Bailey  (jointly),  on
    the one hand, and such other Related  Person,  on the other hand.  Each Call
    Agreement  encumbers a percentage of the respective Related Person's warrant
    rights to shares  for the joint  benefit of Ralph E.  Bailey and  Douglas G.
    Bailey. Specifically,  these Call Agreements have caused all Related Persons
    other than Ralph E. Bailey and Douglas G. Bailey to have made their  warrant
    rights to an  aggregate  amount of  400,000  shares of Issuer  Common  Stock
    subject to call and  exercise by either of the  Baileys  upon any attempt by
    certain  unrelated  third  parties to  enforce  their  rights of  collection
    against the Baileys  pursuant to that certain Pledge and Security  Agreement
    dated December 9, 1994 among Caterpillar  Overseas S.A., Ralph E. Bailey and
    Douglas G. Bailey. (For further discussion of the Call Agreements,  see Item
    6.)


               (c)    None.

               (d) Not applicable.

               (e) Not applicable.


Item 6.   Contracts, Arrangements,  Understandings or Relationships with Respect
          to Securities of the Issuer.

          Each of the  Reporting  Persons  entered  into a  Securities  Purchase
Agreement  dated as of March 23, 1998, and a Shareholders  Agreement dated as of
April 30, 1998, with Issuer.  The Reporting  Persons  obtained their shares (and
warrant  rights to  additional  shares) of Issuer  Common Stock  pursuant to the
Securities Purchase Agreement,  a copy of which is attached as Exhibit 1 to this
Schedule. Pursuant to the Shareholders Agreement, a copy of which is attached as
Exhibit 2 to this Schedule,  the Reporting  Persons (i) obtained certain rights,
with respect to  nomination  of and voting on certain  designees of the board of
directors of Issuer and its wholly owned subsidiary,  Fuel Tech, Inc. ("FTI"), a
Massachusetts  corporation,  and (ii) agreed to certain restrictions on transfer
or  encumbrance  of all of their  shares of Issuer  Common  Stock (and  warrants
representing  rights  therefor)  until  Issuer  and  FTI  have  satisfied  their
obligations  under the Purchase  Agreement  (as defined  below).  The  Reporting
Persons' rights regarding the board of directors will have a duration of between
four and ten  years  provided  that they  continue  to hold  certain  stipulated
amounts of Issuer  Common Stock during such  periods.  The  restrictions  on the
Reporting  Persons'  Issuer Common Stock shares and warrants  terminate upon the
satisfaction by FTI of its obligations under the Purchase Agreement discussed in
the following paragraph.

          Simultaneous  to  execution  and delivery of the  Securities  Purchase
Agreement  and the  Shareholders  Agreement,  each of the Related  Persons  also
entered into

<PAGE>
                                                                   Page 16 of 20



that certain  Bailey Pledge  Agreement,  dated as of April 30, 1998 (the "Bailey
Pledge  Agreement""),  with Nalco FT, Inc. ("Nalco FT"), a Delaware  corporation
acting  in its own  capacity  and as agent for Nalco  Chemical  Company  ("Nalco
Chemical"),  a Delaware  corporation  and the parent  company of Nalco FT (Nalco
Chemical  and Nalco FT,  the "Nalco  Parties").  Pursuant  to the Bailey  Pledge
Agreement,  which is attached as Exhibit 3 to this Schedule, the Related Persons
pledged  all  4,750,000  shares  of,  and  warrants  representing  the rights to
3,000,000  shares of,  Issuer Common Stock to the Nalco Parties as collateral to
secure various purchase  obligations of Issuer and FTI set forth in that certain
Purchase  Agreement (the "Purchase  Agreement") dated as of March 23, 1998 among
Nalco Chemical,  Nalco FT and FTI. The Purchase Agreement enabled Issuer, acting
through FTI, to obtain sole  ownership  of Nalco Fuel Tech,  a Delaware  general
partnership  previously  owned 50% by Nalco FT and 50% by FTI.  (Nalco Fuel Tech
was and is Issuer's  primary  source of revenue.)  Execution and delivery of the
Bailey Pledge Agreement by the Related Persons constituted a material inducement
to the Nalco Parties to enter into the Purchase  Agreement.  If any of the Nalco
Parties  subsequently  exercises its Bailey Pledge Agreement rights as a secured
party  and  forecloses  on  the  Reporting   Persons'  shares  of  (or  warrants
representing  the rights to shares of) Issuer  Common  Stock,  such Nalco  Party
would obtain voting power or investment power over such securities.

          Simultaneous  to their obtaining the warrant rights to purchase Issuer
Common Stock discussed in Item 5 above,  each Reporting Person (other than Ralph
E. Bailey and Douglas G. Bailey) executed a Call Agreement dated as of March 23,
1998 among such Reporting  Person,  Ralph E. Bailey and Douglas G. Bailey.  Each
Call Agreement (two  representative  examples of which are attached as Exhibit 4
to this Schedule)  encumbers a portion of each such Reporting  Person's  warrant
rights for the benefit of Ralph E. Bailey and  Douglas G.  Bailey  jointly.  The
Call  Agreements  collectively  encumber the warrant rights to purchase  500,000
shares of Common  Stock,  but only the  rights to  400,000  of such  shares  are
exercisable within sixty (60) days.  Accordingly,  the group's Reporting Persons
other  than Ralph E.  Bailey  and  Douglas  G.  Bailey  share with said  Baileys
dispositive power over 400,000 shares of Common Stock of Issuer.

          Pursuant to a Registration Rights Agreement dated as of April 30, 1998
among each of the  Reporting  Persons,  Issuer and certain  other  parties,  the
Issuer  granted  the  Reporting  Persons  registration  rights  which,  upon the
Reporting  Persons  fulfillment of certain  conditions  over various  periods of
time, require the Issuer, on demand, to cause Common Stock of the Issuer held by
the Reporting  Persons to be  registered  under the  Securities  Act of 1933, as
amended, so as to permit the Reporting Persons' sale or other disposition of the
Common Stock.

          Pursuant to the  Management  Services  Agreement  dated April 30, 1998
between Issuer and American Bailey  Corporation,  a Connecticut  corporation (of
which each Reporting Person either is an owner, an employee or a consultant),  a
copy of which is attached as Exhibit 5 to this Schedule,  American Bailey agreed
to provide certain management  consulting  services to Issuer.  Neither American
Bailey  nor any of the  Reporting  Persons  will  charge a fee to Issuer for any
services rendered pursuant to said Management  Services  Agreement during the 24
month period beginning April 30, 1998

<PAGE>
                                                                   Page 17 of 20




and  thereafter  for the duration of such agreement both sides will negotiate an
annual fee for services rendered.



<PAGE>
                                                                   Page 18 of 20




Item 7.    Material to Be Filed as Exhibits.

Exhibit
Number     Description
- ------     -----------

   1       Securities  Purchase  Agreement dated as of March 23, 1998 among each
           of the Reporting Persons and Issuer.

   2       Shareholders  Agreement dated  as of April 30, 1998 by and among each
           of the Reporting Persons and Issuer.

   3       Bailey Pledge Agreement dated as  of April 30, 1998 among each of the
           Reporting Persons and Nalco FT.

   4       Two Call  Agreements  dated  as of March 23, 1998, one among Nolan R.
           Schwartz, Ralph E. Bailey and  Douglas G. Bailey, and the other among
           Guy C. Heckman, Ralph E. Bailey and Douglas G. Bailey.

   5       Registration  Rights  Agreement  dated  as of April  30,  1998  among
           Issuer and each of the Reporting Persons.

   6       Agreement  dated April 30, 1998 among  each of the Reporting  Persons
           relating to the execution, delivery and filing of this Schedule 13D.



<PAGE>
                                                                   Page 19 of 20


                                       SIGNATURES

               After  reasonable  inquiry  and to the best of my  knowledge  and
belief,  I certify  that the  information  set forth in this  statement is true,
complete and correct.

Dated:  April 30, 1998
                                             /s/ RALPH E. BAILEY
                                             ------------------------------
                                             Ralph E. Bailey

                                             /s/ DOUGLAS G. BAILEY
                                             ------------------------------
                                             Douglas G. Bailey

                                             /s/ NOLAN R. SCHWARTZ
                                             ------------------------------
                                             Nolan R. Schwartz

                                             /s/ GUY C. HECKMAN
                                             ------------------------------
                                             Guy C. Heckman

                                             /s/ J. WILLIAM DRAKE
                                             ------------------------------
                                             J. William Drake

                                             /s/ ROBERT M. DAVENPORT
                                             ------------------------------
                                             Robert M. Davenport

                                             /s/ BETSY S. KENYON
                                             ------------------------------
                                             Betsy S. Kenyon

                                             /s/ JAMES G. HANNOOSH
                                             ------------------------------
                                             James G. Hannoosh

                                             /s/ GENEVE E. HENDRICKS
                                             ------------------------------
                                             Geneve E. Hendricks

                                             /s/ LINDSAY G. MORTNER
                                             ------------------------------
                                             Lindsay G. Mortner


<PAGE>
                                                                   Page 20 of 20


                                      EXHIBIT INDEX
                                      -------------


Exhibit
Number     Description
- ------     -----------

   1       Securities  Purchase  Agreement dated as of March 23, 1998 among each
           of the Reporting Persons and Issuer.

   2       Shareholders  Agreement dated  as of April 30, 1998 by and among each
           of the Reporting Persons and Issuer.

   3       Bailey Pledge Agreement dated as  of April 30, 1998 among each of the
           Reporting Persons and Nalco FT.

   4       Two Call  Agreements  dated  as of March 23, 1998, one among Nolan R.
           Schwartz, Ralph E. Bailey and  Douglas G. Bailey, and the other among
           Guy C. Heckman, Ralph E. Bailey and Douglas G. Bailey.

   5       Registration  Rights  Agreement  dated  as of April  30,  1998  among
           Issuer and each of the Reporting Persons.

   6       Agreement  dated April 30, 1998 among  each of the Reporting  Persons
           relating to the execution, delivery and filing of this Schedule 13D.








                                                    EXHIBIT 1 TO SCHEDULE 13D


                          SECURITIES PURCHASE AGREEMENT



         SECURITIES  PURCHASE  AGREEMENT (the "Agreement") dated as of March 23,
1998,  between Fuel-Tech N.V., a Netherlands  Antilles limited liability company
(the  "Company" or "FTNV"),  and the  purchasers set forth on the signature page
hereto (each, a Purchaser, and collectively, the "Purchasers").

         WHEREAS,  the Company's authorized capital stock consists of 20,000,000
shares of Common Stock, par value $0.01 per share (the "FTNV Stock"),  of which,
as of January 30, 1998,  12,548,380  are validly issued and  outstanding,  fully
paid and nonassessable;

         WHEREAS,  as of  January  30,  1998,  the  Company  has  an  additional
3,780,795  shares of FTNV Stock  subject to issuance  upon  exercise of options,
warrants and the Company's Nil Coupon Non-Redeemable Perpetual Loan Notes;

         WHEREAS, the Board of Directors of the Company has authorized,  subject
to  approval by the  Company's  shareholders,  (i) an increase in the  Company's
authorized  capital stock to 40,000,000  shares of FTNV Stock, (ii) the issuance
of an  additional  4,750,000  shares of FTNV Stock for delivery to Purchasers as
set forth in Schedule I hereto (the "Purchaser Stock") and (iii) the issuance of
Purchaser  warrants  exercisable  for an aggregate  of 3,000,000  shares of FTNV
Stock  for  delivery  to  Purchasers  as set  forth in  Schedule  I hereto  (the
"Purchaser  Warrants",   and  together  with  Purchaser  Stock,  the  "Purchaser
Shares");

     WHEREAS,  concurrently  with  the  purchase  of  the  Purchaser  Shares  by
Purchasers,  among other things,  (i) the Company and each of the Purchasers are
entering into (a) a Shareholders  Agreement,  substantially in the form attached
hereto as Exhibit A (the "Shareholders  Agreement"),  (b) a Registration  Rights
Agreement,  substantially  in  the  form  attached  hereto  as  Exhibit  B  (the
"Registration  Rights Agreement") and (c) the Purchaser Warrants,  substantially
in the form attached hereto as Exhibit C, (ii) Fuel Tech,  Inc., a Massachusetts
corporation and a wholly-owned subsidiary of the Company ("FTI"),  pursuant to a
purchase  agreement by and among FTI,  Nalco FT, Inc.  ("Nalco  FT"), a Delaware
corporation,   and  Nalco  Chemical  Company  ("Nalco  Chemical"),   a  Delaware
corporation  for the limited  purposes set forth therein (the "Purchase and Sale
Agreement"),  is acquiring  (the "NFT  Acquisition")  the remaining 50% interest
(the "NFT Interest") in Nalco Fuel Tech, a Delaware  general  partnership,  that
FTI does not currently own, (iii) in connection  with the NFT  Acquisition,  (a)
each of the  Purchasers  is  entering  into a  pledge  agreement  with  Nalco FT
(collectively, the "Bailey Pledge Agreements"),  pursuant to which the Purchaser
Shares  will be pledged  to Nalco FT and  certain  related




<PAGE>



Sale Agreement and related  documents,  and (b) FTNV and FTI are entering into a
pledge  agreement (the "FTI/FTNV  Pledge  Agreement") and FTI is entering into a
security  agreement with Nalco FT (the "Security  Agreement")  pursuant to which
certain  securities  and assets will be pledged to Nalco FT and certain  related
parties  to  secure  certain  obligations  of FTI and the  Purchasers  under the
Purchase and Sale  Agreement and related  documents,  and (iv)  American  Bailey
Corporation,   a  Delaware  corporation,   certain  shareholders  of  which  are
Purchasers hereunder,  is entering into a Management Services Agreement with FTI
and FTNV (the "Management Services Agreement"),  the consummation of each of the
foregoing   of  which  shall  occur   substantially   simultaneously   with  the
consummation of the transactions contemplated hereby. Capitalized terms used but
not defined herein shall have the  respective  meaning set forth in the Purchase
and Sale Agreement.

         NOW,  THEREFORE,  in  consideration  of  and  subject  to  each  of the
representations,  warranties,  covenants and agreements  contained  herein,  the
Company and Purchasers hereby agree as follows:

I.    THE PURCHASER SHARES

         1.1.  Purchase and Sale of Purchaser  Shares.  Subject to the terms and
conditions  herein  set  forth,  the  Company  hereby  agrees  to  sell  to  the
Purchasers,  and Purchasers agree to purchase from the Company (the "Purchase"),
the  Purchaser  Shares,  for an  aggregate  purchase  price of  $3,350,000  (the
"Purchase Price"). The Company will sell, assign,  transfer,  convey and deliver
to the  Purchasers,  at the offices of Mayer,  Brown & Platt,  190 South LaSalle
Street, Chicago, Illinois, 60603, (i) stock certificates evidencing an aggregate
of 4,750,000 shares of FTNV Stock, and (ii) Purchaser  Warrants  exercisable for
an aggregate of 3,000,000  shares of FTNV Stock,  each registered in each of the
Purchaser's  names and representing such number of shares and warrants as is set
forth on Schedule I hereto,  against  payment of the Purchase  Price therefor by
wire transfer of  immediately  available  funds to an account  designated by the
Company prior to the Closing Date (as defined in Section 1.2).

         1.2.  Closing  Date.  The  closing  of the  sale  and  purchase  of the
Purchaser  Shares (the "Closing")  shall take place at (i) the offices of Mayer,
Brown & Platt, 190 South LaSalle Street, Chicago, Illinois, 60603, at 9:00 a.m.,
local  time,  on April 30,  1998;  provided,  that if all of the  conditions  to
Closing shall not have been  satisfied or waived by such time, the Closing shall
take  place as  promptly  as  practicable  after all of the  conditions  to each
party's  obligations  have been satisfied or waived,  or (ii) at such other time
and place as the  parties  may agree.  The date on which the  closing  occurs is
herein referred to as the "Closing Date."






                                      -2-
<PAGE>






II.   PURCHASER'S REPRESENTATIONS AND WARRANTIES

         Each of the Purchasers represents and warrants to FTNV, as follows:

         2.1.  Authority.  Each  Purchaser  has the  authority to enter into and
perform this Agreement and the Shareholders  Agreement,  the Registration Rights
Agreement,   the   Purchaser   Warrants   and  the  Bailey   Pledge   Agreements
(collectively,  the  "Purchaser  Ancillary  Documents")  and to  consummate  the
transactions  contemplated  hereby  and  thereby  and  this  Agreement  and  the
Purchaser Ancillary  Documents  constitute valid and binding obligations of each
Purchaser,   enforceable   against  each  Purchaser  in  accordance  with  their
respective terms (except insofar as enforceability  may be limited by applicable
bankruptcy,  insolvency,  reorganization,  moratorium or similar laws  affecting
creditors'  rights  generally,  or  principles  governing  the  availability  of
equitable remedies).

         2.2.  Brokers.  All  negotiations  relative to this  Agreement  and the
Purchaser  Ancillary  Documents  and the  transactions  contemplated  hereby and
thereby have been  carried on by the  Purchasers  directly  with the Company and
without the  intervention of any other person,  either as a result of any act of
the Purchasers or otherwise to the knowledge of the  Purchasers,  in such manner
as to give rise to any valid  claim  against  any of the  parties for a finder's
fee, brokerage commission or other like payment.

         2.3. Governmental  Consents.  No consent,  approval or authorization of
any  governmental  authority or any other third party is required in  connection
with the  execution and delivery of this  Agreement or the  Purchaser  Ancillary
Documents  and the  consummation  of the  transactions  contemplated  hereby and
thereby,  except for any applicable  requirements  relating to the  Registration
Rights Agreement under the Securities Act of 1933, as amended, and the rules and
regulations  promulgated  thereunder (the "Act"), the Securities Exchange Act of
1934,  as amended  (the " 1934 Act"),  state or "Blue Sky" laws and the National
Association of Securities Dealers Automated Quotations Systems.

         2.4.  Purchase for  Investment,  etc.  Each  Purchaser is acquiring the
Purchaser Shares for its own account as principal, with no view to any resale or
distribution of any of the Purchaser  Shares or any beneficial  ownership in the
Purchaser  Shares,  and each  Purchaser  has no  present  intent,  agreement  or
understanding  to sell,  pledge or otherwise  dispose of the Purchaser Shares or
any beneficial  interest in the Purchaser  Shares to any other person or entity,
other  than as  provided  by the terms of the  Bailey  Pledge  Agreements.  Each
Purchaser understands that the Purchaser Stock has not been registered under the
Act or applicable  state securities laws, and therefore the Purchaser Shares may
not be sold or otherwise  transferred  unless  registered  under the Act and any
applicable state  securities laws or unless an exemption from such  registration
is  available;  and these  securities  are also  subject to, and the transfer of
these securities is restricted by, the terms of the Bailey Pledge Agreements and
the Shareholders Agreement. The 



                                      -3-
<PAGE>




undersigned (i) is either knowledgeable with respect to the financial,  business
and tax aspects of ownership of the Purchaser  Stock or has been  represented by
such a  knowledgeable  person  in  connection  herewith  and  (ii)  can bear the
economic risk of an Investment  in the Purchaser  Stock,  including the complete
loss thereof.

         2.5.  Litigation.  There are no actions,  proceedings pending or to the
knowledge of any Purchaser,  threatened against any Purchaser that could prevent
or hinder the  consummation of the  transactions  contemplated by this Agreement
and the Purchaser Ancillary Documents.

III.  REPRESENTATIONS AND WARRANTIES OF FTNV

         FTNV represents and warrants to Purchasers as follows:

         3.1.  Corporate  Authority.  The respective Boards of Directors of FTNV
and FTI have duly approved this Agreement,  the Purchase and Sale Agreement, the
Shareholders  Agreement,   the  Registration  Rights  Agreement,  the  Purchaser
Warrants,  the FTI/FTNV  Pledge  Agreement,  the Security  Agreement,  the Nalco
Administrative  Services  Agreement,  the  Fuel  Chem  Agreement,  the  Sublease
Agreement,   the  Mutual   Release  and  the   Management   Services   Agreement
(collectively,  the "Seller Ancillary Documents") to which they are a party, and
the  transactions  contemplated  hereby and  thereby,  and have  authorized  the
execution and delivery by FTNV,  FTI and the Joint Venture of this Agreement and
the Seller  Ancillary  Documents to which they are a party,  and, subject to the
shareholder  approvals  contemplated  by Section 6.1(a) of this  Agreement,  the
transactions  contemplated  hereby and thereby  constitute the valid and binding
obligations of FTNV, FTI and the Joint Venture,  as the case may be, enforceable
against FTNV,  FTI, the Joint  Venture,  as the case may be, in accordance  with
their  respective  terms  (except  insofar as  enforceability  may be limited by
applicable bankruptcy,  insolvency,  reorganization,  moratorium or similar laws
affecting creditors' rights generally,  or principles governing the availability
of equitable remedies).

         3.2.  Organization.  Each of FTNV, FTI, Fuel Tech Europe,  Ltd. ("FTE")
and  Platinum  Plus,  Inc.  ("PPI",  and together  with FTE,  the  "Wholly-Owned
Subsidiaries"),  Nalco Fuel Tech,  a Delaware  general  partnership  (the "Joint
Venture"),  Nalco FT Holdings,  N.V., a Netherlands  Antilles limited  liability
company ("FT Holdings"),  Nalco Fuel Tech, B.V., a Netherlands  Antilles limited
liability  company  ("FTBV"),  Nalco Fuel Tech GmbH, a German limited  liability
company  ("GmbH"),  Nalco Fuel Tech, Ltd., a Canadian limited  liability company
("NFT") and Nalco Fuel Tech Poland Sp.z o.o., a Polish limited liability company
("NFTP";  together  with the Joint  Venture,  FT Holdings,  FTBV,  GmbH and NFT,
collectively, the "Joint Venture Entities") is an entity duly organized, validly
existing and in good standing  under the laws of its  jurisdiction  of formation
and has all of the requisite power and authority to carry on its business as now





                                      -4-
<PAGE>






conducted,  and each of FTNV, FTI, the  Wholly-Owned  Subsidiaries and the Joint
Venture Entities, is duly qualified to transact business and is in good standing
in each  jurisdiction  in which the failure to so qualify  would have a material
adverse  effect on the business or  properties  of FTNV,  FTI, any  Wholly-Owned
Subsidiary or any Joint Venture Entity (a "Material Adverse Effect").

         3.3.     Capitalization.  The capitalization is as follows:

                                                                              
                    (i)  the  authorized  capital  stock  of  FTNV  consists  of
20,000,000  shares of Common Stock,  par value $0.01 per share,  of which, as of
January 30, 1998, 12,548,380 are validly issued and outstanding,  fully paid and
non-assessable. As of January 30, 1998, there are 3,780,795 additional shares of
FTNV Common Stock  subject to issuance  upon  exercise of options,  warrants and
FTNV's Nil Coupon  NonRedeemable  Perpetual Loan Notes.  At the Closing Date (i)
FTNV's  authorized  capital  stock shall be  increased to  40,000,000  shares of
Common Stock, par value $.01 per share,  (ii) an additional  4,750,000 shares of
FTNV  Common  Stock  shall be validly  issued and  outstanding  for  delivery to
Purchasers and (iii) there shall be 3,000,000  additional  shares of FTNV Common
Stock  subject to issuance upon  exercise of the FTNV  Warrants.  Except for the
Purchaser  Warrants and except as set forth on Schedule 3.3(i) attached  hereto,
there are not outstanding any options, warrants, rights (including conversion or
preemptive  rights) or agreements for the purchase or  acquisition  from FTNV of
any  shares  of its  capital  stock  and FTNV is not a party or  subject  to any
agreement  or  understanding  which  affects  or  relates to voting or giving of
written consents with respect to its securities;

                    (ii) the authorized  capital stock of FTI, the  Wholly-Owned
Subsidiaries  and the Joint Venture  Entities (other than the Joint Venture) and
the  number of issued  and  outstanding  shares  of such  capital  stock and the
holders thereof are as set forth on Schedule  3.3(ii)(a) attached hereto. All of
such shares of capital stock are validly  issued and  outstanding  and are fully
paid and  non-assessable.  Except  pursuant to the terms of the FTI/FTNV  Pledge
Agreement,  there are not outstanding any options,  warrants,  rights (including
conversion or preemptive  rights) or agreements  for the purchase or acquisition
from FTI, any  Wholly-Owned  Subsidiary or Joint Venture Entity of any shares of
its capital stock and neither FTI, any Wholly-Owned Subsidiary nor Joint Venture
Entity is a party or subject to any agreement or understanding  which affects or
relates to voting or giving of written  consents with respect to any security of
FTI, any Wholly-Owned Subsidiary or Joint Venture Entity; and

                    (iii) FTI owns a fifty  percent (50%)  partnership  interest
(the "Partnership Interest") in the Joint Venture, which is owned free and clear
of liens other than the Joint Venture Agreement,  dated as of December 21, 1989,
as  amended,  between  Nalco  Chemical  Company  and FTNV,  and the  Partnership
Agreement,  dated as of January 31,






                                      -5-
<PAGE>




1990, as amended, between Nalco FT and FTI. The Partnership Interest constitutes
50% of the partnership interests in the Joint Venture.

                    (iv) the  outstanding  shares  of  capital  stock  and other
securities of each of FTNV, FTI, the Joint Venture Entities and the Wholly-Owned
Subsidiaries   have  been  issued  in  accordance   with  the   registration  or
qualification  provisions of the  Securities  Act of 1933,  as amended,  and any
relevant state securities laws or pursuant to valid exemptions therefrom.

         3.4.  Subsidiaries.  Other than as set forth on Schedule  3.4  attached
hereto,  none of FTNV,  FTI,  the Joint  Venture  Entities  or the  Wholly-Owned
Subsidiaries owns or controls, directly or indirectly, any interest in any other
person or entity.

         3.5. Charter  Documents.  The copies of the articles of organization or
charter  documents of FTNV, FTI, the Joint Venture Entities and the Wholly-Owned
Subsidiaries  and the by-laws of FTNV,  FTI, the Joint Venture  Entities and the
Wholly-Owned  Subsidiaries and, in each case, all amendments thereto,  that have
been delivered to Purchasers are complete and correct.

         3.6.     Financial Statements.

                    (i) the copies of the audited, consolidated balance sheet of
FTNV as of December 31, 1996,  certified by Ernst & Young LLP,  certified public
accountants,  and its related statement of operations,  shareholders equity, and
cash flows for the year ended December 31, 1996, present fairly, in all material
respects,  the consolidated  financial  position of FTNV and its subsidiaries at
that date and the consolidated  results of their operations and their cash flows
for such period, in conformity with accounting  principles generally accepted in
the United States ("U.S. GAAP") applied on a consistent basis;

                    (ii) the copies of the audited,  consolidated  balance sheet
of FTNV as of  December  31,  1997,  certified  by Ernst & Young LLP,  certified
public  accountants  (the "1997 FTNV  Audited  Financial  Statements"),  and its
related  statement of operations,  shareholders  equity,  and cash flows for the
year ended December 31, 1997, to be delivered to the Purchasers (A) will present
fairly, in all material  respects,  the consolidated  financial position of FTNV
and its  subsidiaries  at  that  date  and the  consolidated  results  of  their
operations  and their cash flows for such period,  in conformity  with U.S. GAAP
applied on a consistent basis and (B) other than the inclusion of notes thereto,
year-end  closing and audit  adjustments  and as set forth on Schedule  3.6(ii),
will not contain any changes from the 1997 FTNV Unaudited  Financial  Statements
(as defined below) which could reasonably be expected to have a Material Adverse
Effect;





                                      -6-
<PAGE>




     (iii) the copies of the unaudited, consolidated balance sheet of FTNV as of
December 3 1, 1997, and related  unaudited income statement for the period ended
December 31, 1997 (the "FTNV Unaudited Financial  Statements"),  present fairly,
in all  material  respects,  the  consolidated  financial  position of the Joint
Venture and its subsidiaries at that date and the consolidated  results of their
operations  and their cash flows for such period,  in conformity  with U.S. GAAP
applied on a  consistent  basis,  subject to the  absence of notes  thereto  and
year-end closing and audit adjustments;

                    (iv) the copies of the audited,  consolidated  balance sheet
of the Joint  Venture as of December 31,  1996,  certified by Ernst & Young LLP,
certified  public   accountants,   and  its  related  statement  of  operations,
shareholders  equity,  and cash  flows for the year  ended  December  31,  1996,
present fairly, in all material respects, the consolidated financial position of
the Joint Venture and its subsidiaries at that date and the consolidated results
of their  operations  and their cash flows for such period,  in conformity  with
accounting U.S. GAAP applied on a consistent basis; and

                    (v) the copies of the audited, consolidated balance sheet of
the Joint  Venture as of  December  31,  1997,  certified  by Ernst & Young LLP,
certified  public   accountants  (the  "1997  Joint  Venture  Audited  Financial
Statements"), and its related statement of operations,  shareholders equity, and
cash flows for the year ended December 31, 1997, present fairly, in all material
respects,  the  consolidated  financial  position  of the Joint  Venture and its
subsidiaries at that date and the  consolidated  results of their operations and
their cash flows for such  period,  in  conformity  with  accounting  U.S.  GAAP
applied on a consistent basis.

         3.7.  Tax  Returns,  Payments  and  Elections.  Each of FTNV,  FTI, the
Wholly-Owned Subsidiaries and the Joint Venture Entities has filed all requisite
tax returns.  Each of FTNV,  FTI, the  Wholly-Owned  Subsidiaries  and the Joint
Venture  Entities  has paid all taxes and other  assessments  due,  except those
contested  by it in good faith and,  except where the failure to do so would not
have a Material  Adverse  Effect;  the  provision  for taxes of such entities as
shown in the most recently prepared  financial  statements  described in Section
3.6 is reasonably adequate for taxes due or accrued as of the date thereof. Each
of FTNV, FTI, the  Wholly-Owned  Subsidiaries and the Joint Venture Entities has
withheld or  collected  from each  payment  made to each of its  employees,  the
amount of all taxes  (including,  but not  limited  to,  federal  income  taxes,
Federal Insurance Contribution Act taxes and Federal Unemployment Tax Act taxes)
required  to be withheld or  collected  therefrom,  and has paid the same to the
proper tax receiving officers or authorized  depositories,  in each case, except
where the failure to do so could not  reasonably  be expected to have a Material
Adverse Effect.

         3.8.  Absence  of  Undisclosed  Liabilities.  Except  as set  forth  in
Schedule  3.8  attached  hereto  and except as and to the  extent  reflected  or
reserved against in the 





                                      -7-
<PAGE>



aforesaid most recently prepared balance sheets of FTNV or the Joint Venture and
liabilities incurred in the ordinary course since the date of the latest balance
sheet,  neither FTNV nor the Joint Venture has any  liabilities  or  obligations
(whether  accrued,  absolute,  contingent or otherwise) that could reasonably be
expected to have a Material Adverse Effect.

         3.9.  Absence of Certain  Changes.  Except as set forth in Schedule 3.9
attached  hereto,  since  December 31, 1997,  there has not been with respect to
FTNV, FTI, the Wholly-Owned Subsidiaries or the Joint Venture Entities:

                    (i)  any  change  in  the  assets,  liabilities,   financial
condition  or  operating  results  from that  reflected  in the  aforesaid  most
recently prepared financial statements, except changes in the ordinary course or
business that could not be  reasonably  expected to have,  in the  aggregate,  a
Material Adverse Affect;

                    (ii) any declaration,  setting aside or payment of dividends
or other distribution in respect of its capital stock or joint venture interests
as the case may be;

                    (iii) any change in the accounting  methods,  tax practices,
policies or any tax election;

                    (iv)  any  incurrence  or  guarantee  of  indebtedness   for
borrowed money;

                    (v) any damage,  destruction or loss, whether or not covered
by  insurance,  materially  and  adversely  affecting  the  assets,  properties,
financial  condition,  operating  results  or  business  (as  such  business  is
presently conducted);

                    (vi) any  waiver of a material  right or of a material  debt
owed;

                                                                              
                    (vii) any  satisfaction  or discharge of any lien,  claim or
encumbrance  or  payment of any  obligation,  except in the  ordinary  course of
business;

                    (viii)  any  material  change  or  amendment  to a  material
contract or arrangement by which any assets or property is bound or subject;

                    (ix) any material change in any compensation  arrangement or
agreement with any employee;

                    (x)  any  sale,  assignment  or  transfer  of  any  patents,
trademarks, copyrights, trade secrets or other intangible assets;

                    (xi) any resignation or termination of employment of any key
employee;






                                      -8-
<PAGE>



                    (xii)  receipt  of notice  that there has been a loss of, or
material order cancellation by, any major customer;

                    (xiii) except  pursuant to the terms of the FTI/FTNV  Pledge
Agreement and the FTI Security Agreement,  any mortgage,  pledge,  transfer of a
security interest in, or lien created with respect to any material properties or
assets, except liens for taxes not yet due or payable;

                    (xiv) any loan or  guarantees  made to or for the benefit of
employees,  officers,  directors,  or any members of their  immediate  families,
other than travel  advances and other  advances  made in the ordinary  course of
business;

                    (xv) any other  event or  condition  of any  character  that
could reasonably be expected to cause a Material Adverse Effect; or

                    (xvi) any  arrangement or commitment to do any of the things
otherwise described in this Section 3.9.

         3.10. Title to Assets (Other than Patents and  Trademarks);  Absence of
Liens and  Encumbrances,  etc. FTNV, FTI, the Wholly-Owned  Subsidiaries and the
Joint Venture Entities have good and marketable title to all of their respective
properties  and assets,  real and  personal  (including  those  reflected in the
balance sheets of December 31, 1997 but excluding  patents and trademarks)) free
and clear of any and all liens, claims, options,  charges or encumbrances of any
nature  whatever,  except (i) the liens of taxes not yet due and  payable,  (ii)
such imperfections of title and encumbrances,  if any, that could not reasonably
be expected to have a Material Adverse Effect, (iii) such properties and assets,
not material in amount,  over which such entities have  effective  control,  and
(iv) the liens created pursuant to the FTI/FTNV Pledge  Agreement,  the Security
Agreement  and the  Purchaser  Obligations  (as defined in the Purchase and Sale
Agreement).  With respect to property and assets it leases,  each of FTNV,  FTI,
the Joint  Venture  Entities and the  Wholly-Owned  Subsidiaries  is in material
compliance with such leases and holds a valid leasehold  interest free and clear
of any material liens, claims and encumbrances.

         3.11. Material Contracts. Except as set forth on Schedule 3.11 attached
hereto,  there are no  agreements,  understandings,  instruments or contracts to
which FTNV, FTI, the Wholly-Owned  Subsidiaries or the Joint Venture Entities is
a party that may involve:

                    (i) outstanding  obligations of any such entity in excess of
$350,000;

                    (ii) the license of any  intellectual  property  (except for
customers  of the  products or services of any such  entity) to or from any such
entity; or







                                      -9-
<PAGE>




                    (iii)  provisions  restricting or affecting the development,
manufacture or sale of the products or services of any such entity.

         3.12. Properties. Except as set forth on Schedule 3.12 attached hereto,
none of FTNV, FTI, the  Wholly-Owned  Subsidiaries or the Joint Venture Entities
owns or leases,  and prior to the effective  time of the  Purchase,  will own or
lease any real property.

         3.13.  Governmental  and Third Party  Consents.  Except as set forth on
Schedule 3.13 attached  hereto,  no consent,  approval or  authorization  of any
governmental  authority or any other third party is required in connection  with
the execution and delivery of this Agreement, the Seller Ancillary Documents and
the  transactions  contemplated  hereby and thereby,  except for any  applicable
requirements  relating to the  Registration  Rights Agreement under the Act, the
1934 Act,  state or "Blue Sky" laws and the National  Association  of Securities
Dealers Automated Quotations System ("NASDAQ").

         3.14.    Defaults.

                    (i) None of FTNV, FTI, the Wholly-Owned  Subsidiaries or the
Joint  Venture  Entities is in default under any of its  respective  articles of
organization,  bylaws, partnership agreement or any instrument or agreement, and
no event  has  occurred  and is  continuing  under  the  provisions  of any such
instrument or agreement that with the lapse of time or the giving of notice,  or
both, would constitute a default thereunder, which could, individually or in the
aggregate, reasonably be expected to have a Material Adverse Effect, and none of
such entities is in violation of any judgment, order, writ, injunction,  decree,
ordinance,  statute,  rule or regulation  of any  governmental  authority  which
could,  individually  or in the  aggregate,  reasonably  be  expected  to have a
Material Adverse Effect.

                    (ii) The execution  and delivery by FTNV,  FTI and the Joint
Venture of this  Agreement and the Seller  Ancillary  Documents to which it is a
party does not, and the  performance  by FTNV,  FTI and the Joint Venture of its
respective obligations hereunder and thereto will not, violate any provisions of
its respective articles of organization or by-laws or partnership agreement,  or
constitute a default under any other license, permit, constraint or agreement or
any  ordinance,  statute,  rule or regulation of any  governmental  authority to
which any such entity, the Wholly-Owned  Subsidiaries or any other Joint Venture
Entity is a party or by which it or its  respective  assets  may be bound  which
could reasonably be expected to have a Material Adverse Effect.






                                      -10-
<PAGE>




         3.15. Litigation. Except as set forth in Schedule 3.15 attached hereto,
there is no  litigation,  proceeding or  governmental  investigation  pending or
threatened against or relating to:

                    (i) FTNV,  FTI, the  Wholly-Owned  Subsidiaries or the Joint
Venture Entities,  respectively, or its respective properties or business, which
could,  individually  or in the  aggregate,  reasonably  be  expected  to have a
Material Adverse Effect;

                    (ii) the  transactions  contemplated by the Agreement or the
Seller Ancillary Documents; or

                    (iii) the directors, officers or employees of FTNV, FTI, the
Wholly-Owned  Subsidiaries or the Joint Venture Entities in reference to actions
taken by them in such capacities, nor does any such entity know of any basis for
any such  litigation,  proceeding  or  investigation;  and there are no decrees,
injunctions  or  orders  of  any  court,   governmental   department  or  agency
outstanding against it. There is no action, suit or proceeding by FTNV, FTI, the
Wholly-Owned  Subsidiaries or the Joint Venture Entities that such party intends
to initiate.

         3.16.  Brokers.  All  negotiations  relative to this  Agreement and the
transactions  contemplated  hereby have been  carried on by FTNV  directly  with
Purchasers and without the intervention of any other person,  either as a result
of any act of FTNV or otherwise to the  knowledge of FTNV,  in such manner as to
give rise to any valid claim  against  any of the  parties  for a finder's  fee,
brokerage commission or other like payment.

         3.17.  Patents and  Trademarks.  Each of FTNV,  FTI,  the  Wholly-Owned
Subsidiaries  and the Joint Venture  Entities has sufficient title and ownership
of, or right to use,  all  patents,  trademarks,  service  marks,  trade  names,
copyrights,  trade  secrets,  information,   proprietary  rights  and  processes
necessary  for its  business  as now  conducted,  free and  clear of any and all
liens, except  imperfections of title, and encumbrances,  if any, that could not
reasonably be expected to have a Material  Adverse Effect,  without any conflict
with or  infringement  of the rights of others,  and none of such  entities  has
received any communications alleging that such party has violated, would violate
any of the patents, trademarks,  service marks, trade names, copyrights or trade
secrets or other  proprietary  rights of any other  person (it being  understood
that none of FTNV,  FTI,  the  Wholly-Owned  Subsidiaries  or the Joint  Venture
Entities is authorized to practice sorbent injection with Orimulsion(TM) in coal
fired plants).






                                      -11-
<PAGE>




         3.18. Permits. Each of FTNV, FTI, the Wholly-Owned Subsidiaries and the
Joint Venture Entities has all franchises,  permits,  licenses,  and any similar
authority  necessary  for the conduct of its business as now being  conducted by
it, the lack of which could  reasonably be expected to cause a Material  Adverse
Effect;  and none of such  entities is in default in any material  respect under
any of such franchises, permits, licenses, or other similar authority.

         3.19.   Environmental   and  Safety  Laws.   Neither  FTNV,   FTI,  the
Wholly-Owned  Subsidiaries nor the Joint Venture Entities is in violation of any
applicable   statute,   law  or  regulation   relating  to  the  environment  or
occupational  health and safety  where the failure to comply with such  statute,
law or  regulation  could  reasonably  be  expected  to have a Material  Adverse
Effect.

         3.20. Labor Agreements and Actions. Neither FTNV, FTI, the Wholly Owned
Subsidiaries  nor the Joint Venture Entities is bound by or subject to (and none
of its  assets or  properties  is bound by or subject  to) any  written or oral,
express or implied,  contract,  commitment or arrangement  with any labor union,
and  no  labor  union  has  requested  or has  sought  to  represent  any of the
employees,  representatives or agents of any such entity;  there is no strike or
other labor dispute  involving any such entity pending or threatened  that could
reasonably be expected to have a Material Adverse Effect; nor is any such entity
aware of any labor organization activity involving its employees.

         3.21.  Insurance.  Each of FTNV, FTI, the Wholly-Owned  Subsidiaries or
the Joint  Venture  Entities  has in full  force and  effect  fire and  casualty
insurance  policies and products  liability  insurance in amounts  customary for
companies  similarly  situated.  Schedule  3.21  attached  hereto  sets  forth a
description  of each such  insurance  policy  (including  the carrier's name and
policy number) maintained by or on behalf of each such entity.

         3.22.  Employee  Benefit  Plans.  Except as set forth in Schedule 3.22,
none of FTNV, FTI, the  Wholly-Owned  Subsidiaries or the Joint Venture Entities
has any  Employee  Benefit  Plan as defined in the  Employee  Retirement  Income
Security Act of 1974.

         3.23. SEC Filings.  FTNV has complied,  in all material respects,  with
all reporting requirements of the Securities Exchange Act of 1934, as amended.

         3.24.  Valid Issuance of Purchaser  Shares.  Subject to the approval by
the  shareholders  of FTNV of the amendment to FTNV's  articles of  organization
contemplated  by Section  6.1(a)(ii)  and the filing with and acceptance of such
amendment by the  government  of the  Netherlands  Antilles,  (a) the  Purchaser
Shares that are being purchased by the Purchasers  hereunder,  when issued, sold
and  delivered  in  accordance   with  the  terms  of  this  Agreement  for  the
consideration expressed herein, will be duly and validly 



                                      -12-
<PAGE>






issued,  fully paid,  and  nonassessable,  and will be free of  restrictions  on
transfer  other  than  restrictions  on  transfer  under  this  Agreement,   the
Shareholders Agreement,  the Bailey Pledge Agreements and under applicable state
and federal  securities  laws (b) the FTNV Stock  issuable  upon exercise of the
Purchaser  Warrants  purchased  under this  Agreement  will be duly and  validly
reserved for issuance and,  upon  issuance in  accordance  with the terms of the
Articles of Organization of the Company,  will be duly and validly issued, fully
paid, and  nonassessable and will be free of restrictions on transfer other than
restrictions on transfer under this Agreement,  the Shareholders Agreement,  the
Bailey Pledge Agreements and under applicable state and federal securities laws.

     3.25.  Offering.  Subject  to the truth and  accuracy  of each  Purchaser's
representations  set forth in Article II of this Agreement,  the offer, sale and
issuance of the Purchaser  Shares as  contemplated  by this Agreement are exempt
from the  registration  requirements  of the Securities Act of 1933, as amended,
and neither the Company nor any authorized  agent acting on its behalf will take
any action hereafter that would cause the loss of such exemption.

IV.   OBLIGATIONS PRIOR AND SUBSEQUENT TO THE CLOSING

         4.1.  Conduct of  Business.  FTNV  covenants  and agrees that except as
expressly  provided  by  this  Agreement  or as  otherwise  consented  to by the
Purchasers, after the date hereof and prior to the Closing, it shall not, and it
shall  cause FTI and the  Wholly-Owned  Subsidiaries  and  shall,  to the extent
permitted by the organizational  documents of the Joint Venture,  use reasonable
efforts to cause the Joint Venture Entities,  not to take any action which would
cause FTNV, FTI, the Wholly-Owned Subsidiaries or the Joint Venture Entities, as
the case may be, to act other than in the ordinary  course of  business,  and to
preserve the assets,  business and  relationships of such entities with material
customers,  suppliers and others having material business relationship with such
entities.

         4.2.  Consents,  Additional  Agreements.   Subject  to  the  terms  and
conditions set forth herein, each of the parties hereto shall cooperate with the
other party and use all  reasonable  efforts to take, or cause to be taken,  all
actions  and to do,  or cause to be  done,  all  things  necessary,  proper  and
advisable  to  consummate  and make  effective  as promptly as  practicable  the
transactions contemplated by this Agreement, including:

                    (i)  using  all  reasonable  efforts  to  remove  any  legal
impediment to the consummation of such transactions; and

                    (ii) using all  reasonable  efforts to obtain all  necessary
waivers,  consents  and  approvals  of third  parties  and  governmental  bodies
referred to in Sections 2.3 and 3.13, and to effect all necessary filings.






                                      -13-
<PAGE>




         4.3. Access to Information.  From the date hereof to the Closing,  FTNV
shall, and shall cause FTI and the Wholly-Owned  Subsidiaries to, and the extent
permitted by the organizational  documents of the Joint Venture,  use reasonable
efforts to cause the Joint Venture Entities, to afford Purchasers access, at all
reasonable  times, to the officers,  employees,  agents,  properties,  books and
records  of  such  entity,  and  shall  furnish  Purchasers  with  all  existing
financial,  operating and other data and information  relating to such entity as
Purchasers  may reasonably  request,  provided that nothing herein will obligate
any such entity to take any actions that would  unreasonably  disrupt the normal
course of their business or to violate the terms of any contract to which any of
them is a party or to which any of their assets are subject.

V.    INDEMNIFICATION

         5.1.   Purchaser's   Indemnity.   The  Purchasers  agree,  jointly  and
severally,  to  indemnify,  defend  and hold  harmless  FTNV  and its  officers,
directors  and  employees  from and  against  any and all  claims,  liabilities,
losses,  damages and expenses,  including  reasonable fees and  disbursements of
counsel  (collectively,  "Losses"),  related  to or  arising  out  of any of the
following:

                                                                                
                  (a) Any inaccuracy in or any breach or any  representation  or
warranty  made by any of the  Purchasers  in this  Agreement or in any Purchaser
Ancillary Document; or

                  (b) Any breach by any of the Purchasers of any covenant of the
Purchasers in this Agreement or in any Purchaser Ancillary Document.

         5.2.     Indemnity of FTNV.

                  (a) FTNV agrees to  indemnify,  defend and hold  harmless each
Purchaser as follows:

                    (i) If there is any claim, liability, loss or damage related
to or  arising  out of any  inaccuracy  or  breach  of the  representations  and
warranties  regarding  the most recent  audited  balance  sheets of FTNV and the
Joint Venture made by FTNV in Section in 3.6 of this Agreement  which relates in
any way to the "current  assets" (as such term is utilized  under U.S.  GAAP) or
any  "liability"  (as such term is utilized  under U.S.  GAAP) set forth on such
balance sheets, then each Purchaser shall be entitled to be indemnified and paid
a dollar  amount equal to the result of (x) the  percentage  of the  outstanding
FTNV Common Stock owned by such Purchaser  multiplied by (y) the quotient of (I)
the total amount of such claim, liability, loss or damage, but excluding related
fees and expenses,  including  attorneys fees and expenses,  to FTNV, the Wholly
Owned Subsidiary or the Joint Venture Entity (the "Quantified  Loss") divided by
(II) the result of one (1) minus the percentage of the  outstanding  FTNV Common
Stock owned by such  Purchaser  at the time such  Quantified  Loss was  incurred
(provided  that if the  breach  which gave rise 




                                      -14-
<PAGE>




to the Quantified Loss is also covered by a similar  representation  or warranty
made by Nalco FT or Nalco  Chemical  to FTI  pursuant to the  Purchase  and Sale
Agreement,  then the Quantified  Loss shall be reduced by fifty percent  (50%)).
For  purposes  of this  Agreement,  shares of FTNV  Common  Stock  "owned"  by a
Purchaser shall not include shares obtainable pursuant to the Purchaser Warrants
or pursuant to the  exercise of any other  option held by such  Purchaser at the
time the relevant loss is incurred.

     (ii) If there are any drawings made by or on behalf of the Polish  Customer
on or before March 31, 1998 (or, if extended or replaced by mutual  agreement of
FTI and Nalco FT under Section 10.2(d) of the Purchase and Sale Agreement, on or
before such extended or replaced  expiration date) under the SG Letter of Credit
(as  extended  or  replaced),  then  each  Purchaser  shall  be  entitled  to be
indemnified  and paid a dollar amount equal to the result of (x) the  percentage
of the outstanding  FTNV Common Stock owned by such Purchaser  multiplied by (y)
fifty percent (50%) of the quotient of (I) the aggregate amount of such drawings
(the  "Drawings")  divided by (II) the result of one (1) minus the percentage of
the  outstanding  FTNV Common Stock owned by such  Purchaser at the time of such
drawing;  provided  that in no case shall FTNV's  aggregate  liabilities  to all
Purchasers pursuant to this Section 5.2(a)(ii) exceed the lesser of (a) one-half
(1/2) of the aggregate  Drawings made under the SG Letter of Credit (as extended
or replaced) and (b) one hundred fifty thousand dollars ($150,000).

                    (iii) If the  Polish  Customer  shall fall to pay all or any
portion of the Polish Customer  Invoices,  then each Purchaser shall be entitled
to be  indemnified  and paid a dollar  amount  equal  to the  result  of (x) the
percentage  of the  outstanding  FTNV  Common  Stock  owned  by  such  Purchaser
multiplied  by (y) fifty  percent  (50%) of the  quotient  of (I) the  aggregate
amount of such unpaid Polish Customer Invoices (the "Unpaid  Invoices")  divided
by (II) the  result of one (1)  minus the  percentage  of the  outstanding  FTNV
Common Stock owned by such Purchaser;  provided that FTNV shall not be obligated
to make any payment under this Section  5.5(a)(iii) until FTI shall have written
off any unpaid amount of the Polish Customer  Invoices in full (which  write-off
shall not occur prior to July 31, 1998); and, provided, further, that in no case
shall FTNV's aggregate liability pursuant to this Section 5.2(a)(iii) exceed the
lesser of (a) one-half  (1/2) of the Unpaid  Invoices as of the Closing Date and
(b) one hundred and fifty thousand dollars ($150,000).

                    (iv)  If any  Purchaser  suffers  any  Loss  relating  to or
arising out of any breach of any covenant made by FTNV in this  Agreement or any
Seller Ancillary  Document,  or any inaccuracy or breach of a representation  or
warranty made by FTNV in this Agreement or the Seller Ancillary Documents, which
is not in each case covered by Sections  5.2(a)(i) - (iii),  then such Purchaser
shall be indemnified  for such Loss by FTNV pursuant to this Section  5.2(a)(iv)
and each such Purchaser's Loss shall be determined by calculating the diminution
in value of the FTNV Common Stock held by 





                                      -15-
<PAGE>




such Purchaser directly as a result of such breach, without giving effect to any
"gross up" similar to those set forth in Section 5.2(a)(i) - (iii).

                  (b) FTNV further agrees to indemnify and hold harmless, and to
cause FTI to indemnify and hold harmless,  each person who is a director of FTNV
or FTI,  as the case may be, at the request of the  Purchasers  against any Loss
incurred  in  connection   with  any  claims,   action,   suit,   proceeding  or
investigation arising out of or pertaining to acts or omissions, or alleged acts
or omissions,  by them in their  capacities  as such to the fullest  extent that
FTNV or FTI,  as the case  may be,  is  permitted  under  applicable  law and to
advance  expenses as incurred to the fullest extent  permitted under  applicable
law.


         5.3.     Limitations on Liability of  Purchasers.  Notwithstanding  any
other provision of this Agreement:

                  (a) FTNV shall have the right to payment by  Purchasers  under
Section 5.1 only if, and only to the extent that, FTNV shall have incurred as to
all inaccuracies,  breaches and claims indemnifiable Losses in excess of $75,000
in the aggregate;

                  (b)  In no  event  shall  Purchaser  have  any  liability  for
special,  speculative,  indirect or  consequential  damages,  including for lost
profits;

                  (c) Each Purchaser shall have no liability to FTNV under or in
connection  with  this  Agreement,  the  Purchaser  Ancillary  Documents  or the
transactions  contemplated  hereby and  thereby  (including  under any breach or
inaccuracy of any  representation  or warranty or for any breach of any covenant
or for any other reason),  in an aggregate  amount in excess of the then current
market value of the  Purchaser  Shares held by such  Purchaser,  measured at the
time that such breach of  representation,  warranty or covenant by the Purchaser
occurred; and

                  (d) Each  Purchaser may elect to return  first,  the Purchaser
Shares  and  second,  the  FTNV  Warrants,   held  by  such  Purchaser  in  full
satisfaction of any claim by FTNV for indemnification.

         5.4.  Limitations  on  Liability  of FTNV.  Notwithstanding  any  other
provision of this Agreement:

                  (a) The  Purchasers  shall  have the right to  payment by FTNV
under  Section 5.2 only if, and only to the extent that,  the  Purchasers  shall
have incurred as to all inaccuracies,  breaches and claims  indemnifiable Losses
in excess of $75,000 in the aggregate;  provided,  however,  that the limitation
set  forth in this  Section  5.4(a)  shall not  apply to  Losses  arising  under
Sections 5.2(a)(ii) or (a)(iii) of this Agreement.






                                      -16-
<PAGE>






                  (b) In no event  shall FTNV have any  liability  for  special,
speculative, indirect or consequential damages, including for lost profits; and

                  (c) FTNV shall have no liability to the Purchasers under or in
connection  with  this  Agreement,   the  Seller  Ancillary   Documents  or  the
transactions  contemplated  hereby and  thereby  (including  under any breach or
inaccuracy of any  representation  or warranty or for any breach of any covenant
or for any other  reason),  in an  aggregate  amount  in excess of the  Purchase
Price.

         5.5.   Procedures   for   Indemnification.   Any  person   entitled  to
indemnification hereunder shall (i) give prompt notice to the indemnifying party
of any claim with respect to which it may seek  indemnification  and (ii) unless
in such indemnified  party's reasonable  judgment a conflict of interest between
such indemnified and indemnifying  parties may exist with respect to such claim,
permit such indemnifying  party to assume the defense of such claim with counsel
reasonably  satisfactory to the  indemnified  party. If such defense is assumed,
the  indemnifying  party will not be subject to any liability for any settlement
made without its consent (but such consent will not be  unreasonably  withheld).
An indemnifying party who is not entitled,  or elects not, to assume the defense
of a claim will not be  obligated  to pay the fees and expenses of more than one
counsel for all parties  indemnified by such indemnifying  party with respect to
such  claim,  unless  in the  reasonable  judgment  of any  indemnified  party a
conflict of interest may exist between such  indemnified  party and any other of
such  indemnified  parties  with  respect  to such  claim,  in  which  case  the
indemnifying  party  shall  pay the  fees  and  expenses  of one (1)  additional
counsel.  Purchasers  will  promptly  indemnify  FTNV if and to the extent it is
finally  determined  that  Purchasers are obligated to indemnify FTNV under this
Article V. FTNV will  promptly  indemnify  Purchasers if and to the extent it is
finally  determined  that FTNV is obligated to indemnify  Purchasers  under this
Article V.

         5.6.  Polish  Project  Recoveries.  If  FTNV,  any of the  Wholly-Owned
Subsidiaries  or the Joint  Venture  Entities  at any time  receive  payment  (a
"Polish  Recovery")  from or on behalf of (a) the Polish Customer of any amounts
for  which  FTNV has made an  indemnification  payment  to any  Purchaser  under
Section  5.2(a)(ii)  or (iii),  or (b) Amerex  Industries,  Inc.  (or any of its
affiliates),   the   contractor  on  the  project  with  the  Polish   Customer,
representing  damages  or  settlement  proceeds  arising  out of its  failure to
perform  such  contract,  then and in either  such  event such  Purchaser  shall
promptly pay over to FTNV an amount equal to (i) the result of (x) the amount of
such indemnity  payments  previously  made to such  Purchaser  times (y) (i) the
Recovery  (net of  out-of-pocket  expenses  of recovery  incurred by FTNV,  such
Wholly-Owned Subsidiary or such Joint Venture Entity) divided by (ii) the amount
of the Drawings  and/or the Unpaid  Invoices in respect of which such  indemnity
payments were previously made.




                                      -17-
<PAGE>




VI.    CONDITIONS TO THE PURCHASE

         6.1.  Conditions to the  Obligations of Each Party.  The obligations of
Purchasers  and FTNV to  consummate  the  purchase of the  Purchaser  Shares are
subject to the satisfaction of the following conditions:

                  (a) the  shareholders  of FTNV,  at an  extraordinary  general
meeting,  shall  have  approved,  adopted  and  elected,  as the case may be, in
accordance  with  the  laws of the  Netherlands  Antilles  and its  articles  of
organization, the following:

                    (i)  this  Agreement,   the  Shareholders   Agreement,   the
Registration Rights Agreement and the Warrants and the transactions contemplated
hereby,

                    (ii) an amendment to the articles of organization of FTNV to
increase the number of authorized shares of FTNV Common Stock to 40,000,000; and

                    (iii) an amendment to FTNV's  Incentive Plan or the adoption
of a substantially  similar plan to provide for an increase in the percentage of
outstanding  shares of FTNV Stock  available  for option  grants to 12.5% of all
outstanding shares of FTNV Stock;

                  (b) FTNV shall have  received  all  requisite  approvals  from
NASDAQ;

                  (c) FTI, Nalco FT, Inc. and Nalco Chemical  Company shall have
entered into the Purchase and Sale  Agreement  which shall  constitute the valid
and binding  obligation of each party thereto (except insofar as  enforceability
may be limited by applicable bankruptcy, insolvency, reorganization,  moratorium
or similar laws affecting  creditors' rights generally,  or principals governing
the availability of equitable remedies);

                  (d) no temporary restraining order or preliminary or permanent
injunction  or other  order  by any  United  States  federal  or state  court or
Netherlands   Antilles  court   preventing   consummation  of  the  transactions
contemplated hereby, by the Purchase and Sale Agreement, the Purchaser Ancillary
Documents  or  the  Seller  Ancillary  Documents  shall  have  been  issued  and
continuing in effect;  and such transaction shall not have been prohibited under
any applicable United States or Netherlands Antilles law or regulation;

                  (e)  Each  of FTNV  and the  Purchasers  shall  be  reasonably
satisfied that this  Agreement,  the Purchase and Sale  Agreement,  the Purchase
Ancillary  Documents and the Seller  Ancillary  Documents  and the  transactions
contemplated  thereby and hereby,  shall not (i) impair FTI's loss carryforwards
under  U.S.  tax law or 



                                      -18-
<PAGE>






(ii) constitute a default,  or otherwise cause an acceleration of  indebtedness,
under FTNV's Nil Coupon Perpetual Loan Notes; and

                  (f) the  transactions  contemplated  by the  Purchase and Sale
Agreement shall close simultaneously with the Closing.

VII.   CONDITIONS TO THE OBLIGATIONS OF PURCHASERS

         7.1.  Condition to the  Obligations of Purchasers.  The  obligations of
Purchasers to consummate the purchase of the Purchaser Shares are subject to the
satisfaction of the following further conditions:

     (i) each of the  representations  and  warranties of FTNV set forth in this
Agreement  shall be true and correct in all  material  respects on and as of the
Closing  Date if made on and as of such date  (other  than  representations  and
warranties  which address  matters only as of a certain date which shall be true
and correct as of such  certain  date),  and  Purchasers  shall have  received a
certificate of the Chief Financial Officer of FTNV to such effect;

                    (ii) FTNV shall have  performed  or complied in all material
respects  with all  agreements  and covenants  required by this  Agreement to be
performed  or  complied  with by it on or  prior  to the  effective  time of the
closing  of the  purchase  of the  Purchaser  Shares and  Purchasers  shall have
received a certificate of the Chief Financial Officer of FTNV to that effect;

                    (iii) FTNV shall have  delivered to Purchasers the 1997 FTNV
Audited  Financial  Statements  and the 1997  Joint  Venture  Audited  Financial
Statements,  certified  in each  case by  Ernst & Young  LLP,  certified  public
accountants;

                    (iv) FTNV, FTI and the Joint Venture shall have entered into
the Seller Ancillary Documents to which they are a party, which shall constitute
the valid and  binding  obligation  of each  party  thereto  (except  insofar as
enforceability   may  be   limited   by   applicable   bankruptcy,   insolvency,
reorganization,   moratorium  or  similar  laws  affecting   creditors'   rights
generally, or principals governing the availability of equitable remedies);

                    (v)  American  Bailey  Corporation,  FTNV and FTI shall have
entered into that certain  Management  Services  Agreement  substantially in the
form of Exhibit D, which shall  constitute  the valid and binding  obligation of
each  party  thereto  (except  insofar  as  enforceability  may  be  limited  by
applicable bankruptcy,  insolvency,  reorganization,  moratorium or similar laws
affecting creditors' rights generally,  or principals governing the availability
of equitable remedies);




                                      -19-
<PAGE>





                    (vi) FTNV shall have  furnished  Purchasers  with  certified
resolutions  of its Board of  Directors  and its  shareholders  authorizing  the
transactions  contemplated  by this  Agreement,  certified  by FTNV's  Corporate
Secretary and a certificate  from a duly qualified  Netherlands  Antilles notary
certifying as to the authenticity of FTNV's Articles and its good standing; and

                    (vii) FTNV shall have  furnished to Purchasers an opinion of
FTNV's general counsel, dated as of the Closing Date,  substantially in the form
of Exhibit E.

VIII.  CONDITIONS TO THE OBLIGATIONS OF FTNV

         8.1.  Conditions to the Obligations of FTNV. The obligations of FTNV to
consummate the purchase of the Purchaser  Shares are subject to the satisfaction
of the following further conditions:

                    (i) each of the representations and warranties of Purchasers
set forth in this Agreement  shall be true and correct in all material  respects
on and as of the  Closing  Date as if made on and as of such  date  (other  than
representations  and warranties  which address matters only as of a certain date
which  shall be true and  correct  as of such  certain  date),  FTNV  shall have
received certificates of the Purchasers to such effect;

                    (ii)  Purchasers  shall have  performed  or  compiled in all
material  respects with all agreements and covenants  required by this Agreement
to be performed or complied with by it on or prior to the effective  time of the
purchase of the Purchaser  Shares and FTNV shall have received  certificates  of
the Purchasers to that effect;

                    (iii) FTNV  shall  have  received  an  opinion  letter  from
Dominick & Dominick, Incorporated as to the fairness to the shareholders of FTNV
of the  transactions  contemplated  by this  Agreement,  the  Purchase  and Sale
Agreement, the Purchaser Ancillary Documents and the Seller Ancillary Documents;

                    (iv) each of the  Purchasers  shall  have  entered  into the
Purchaser  Ancillary  Documents  which  shall  constitute  the valid and binding
obligation  of each  party  thereto  (except  insofar as  enforceability  may be
limited by  applicable  bankruptcy,  insolvency,  reorganization,  moratorium or
similar laws affecting creditors' rights generally,  or principals governing the
availability of equitable remedies);

                    (v)  each of the  Purchasers  shall  have  entered  into the
Bailey Pledge Agreements which shall constitute the valid and binding obligation
of each  party  thereto  (except  insofar  as  enforceability  may be limited by
applicable bankruptcy,  insolvency,  reorganization,  moratorium or similar laws
affecting creditors rights generally,  or principals  governing the availability
of equitable remedies);




                                      -20-
<PAGE>





                    (vi) FTNV shall have  received a legal  opinion from counsel
to ABC, substantially in the form of Exhibit F.

IX.    ADDITIONAL AGREEMENTS

         9.1.  Further  Assurances.  If at any  time  FTNV or  Purchasers  shall
consider or be advised  that any  further  assurance  in law or other  action is
necessary  or  desirable,  the proper  officers  and  directors  of FTNV and the
Purchasers,  respectively,  shall be and they  hereby  are  severally  and fully
authorized  to deliver such  assurances in law and take such other action as may
be  necessary  or  proper  in the name of FTNV or  Purchasers  to carry  out the
purposes of this Agreement.

         9.2.  Notification  of Certain  Matters.  Each party  hereto shall give
prompt notice to the other parties hereto of:

                    (i)  the  occurrence  or  nonoccurrence  of any  event,  the
occurrence or nonoccurrence of which would be likely to cause any representation
or warranty  made by such party in this  Agreement  to be  materially  untrue or
inaccurate; or

                    (ii) the failure of such party to comply with or satisfy any
covenant, condition or agreement to be complied with by it hereunder;  provided,
however,  that delivery of any notice pursuant to this Section 9.2(ii) shall not
limit  or  otherwise  affect  the  remedies  available  hereunder  to the  party
receiving such notice.

         9.3.  Termination  and  Abandonment.  Anything  herein to the  contrary
notwithstanding,  this  Agreement,  the  Purchaser  Ancillary  Documents and the
Seller  Ancillary  Documents may be terminated and the  transactions  herein and
therein contemplated may be abandoned at any time:

                  (a) by mutual consent of FTNV and Purchasers; or

                  (b) by FTNV or  Purchasers  if the Closing has not occurred on
or before June 30, 1998,  unless the absence of such occurrence  shall be due to
the failure of the party seeking to terminate such  agreements to perform any of
its  obligations  required  to be  performed  by it at or prior  to the  Closing
pursuant to the terms hereof or thereof, provided that in the event the Board of
Directors of FTNV, in order to properly  discharge  its fiduciary  duties to its
shareholders,  recommends to such shareholders an unsolicited, third party offer
which it believes to be of greater value to its  shareholders  than the offer of
Purchasers  set forth herein and therein,  FTNV may terminate such documents and
the transactions contemplated hereby and thereby.

         In the event of termination  and abandonment by FTNV or the Purchasers,
or both,  pursuant to this Section 9.3, written notice thereof shall be given to
the other 



                                      -21-
<PAGE>





party.  Notwithstanding any such termination, (i) the confidentiality provisions
of Section 4.4 shall  continue in full force and effect and (ii) nothing  herein
shall relieve any party from liability from any willful breach hereof.

         9.4. Amendments, Supplements, etc. At any time before or after approval
and  adoption by the  shareholders  of FTNV,  this  Agreement  may be amended in
matters  of  form,  or  supplemented  by  additional  agreements,   articles  or
certificates,  as may be determined in the judgment of the Board of Directors of
FTNV or  Purchasers  to be  necessary,  desirable,  or  expedient to clarify the
intention  of the  parties  hereto,  or to effect  or  facilitate  the  official
approval and  consummation of the purchase of the Purchaser  Shares provided for
herein, in accordance with the purpose and intent of this Agreement.

     9.5.  Waiver.  At any time prior to the Closing Date,  any party hereto may
(i) extend the time for the  performance  of any  obligation or other act of any
other  party  hereto,  (ii)  waive any  inaccuracy  in the  representations  and
warranties  contained  herein or in any document  delivered  pursuant hereto and
(iii) waive  compliance with any agreement or condition  contained  herein.  Any
such extension of waiver shall be valid if set forth in an instrument in writing
signed by the party or parties to be bound thereby.

         9.6. Expenses.  All expenses incurred in connection with this Agreement
and the  transactions  contemplated  hereby shall be paid by the party incurring
such  expenses,  whether  or  not  the  purchase  of  the  Purchaser  Shares  is
consummated.

         9.7.  Survival.   The  representations  and  warranties  made  in  this
Agreement shall survive the Closing Date and remain in full force and effect for
a period  equal to the later of four (4) years  after  the  Closing  Date or the
termination of all  liabilities  and  obligations of FTI to Nalco FT, Inc. under
Sections  2.02(b),  2.02(c) and 10.04 of the Purchase and Sale Agreement and the
Purchaser Note, as defined in Section 2.02(b) of the Purchase and Sale Agreement
(collectively,  the "Purchaser Obligations") (except for the representations and
warranties of FTNV under  Sections 3.7 and 3.19 of this  Agreement,  which shall
remain in full force and effect until the expiration of any  applicable  statute
of limitations),  and the corresponding  obligation to indemnify under Article V
shall expire at such time, except with respect to a claim that has been properly
made prior thereto pursuant to such Article V.

         9.8.  Notices.  All  notices  and  other  communications  given or made
pursuant to this Agreement shall be in writing and shall be sent by an overnight
courier  service  that  provides  proof of  receipt,  mailed  by  registered  or
certified mail (postage prepaid,  return receipt requested) or telecopied to the
parties at the  following  addresses  (or at such other  address  for a party as
shall be specified by like notice):

         if to FTNV:



                                      -22-
<PAGE>





         Charles W. Grinnell, Esq.
         Fuel Tech, Inc.
         100 Atlantic Street
         Suite 703
         Stamford, CT 06901-3522
         Telephone:        (203) 363-7105
         Facsimile:        (203) 363-7108

         with a copy to:

         Kenneth Rosh, Esq.
         Fried, Frank, Harris, Shriver & Jacobson
         One New York Plaza
         New York, NY 10004
         Telephone:        (212) 859-8000
         Facsimile:        (212) 859-4000

         if to Purchasers:

         [Names of Purchasers listed in the signature page hereto]
         c/o American Bailey Corporation
         Attention:        Guy Heckman and Nolan Schwartz
         Financial Centre
         695 East Main Street
         Stamford, CT 06901
         Telephone:        (203) 348-8700
         Facsimile:        (203) 967-3877

         with a copy to,

         Thomas J. Freed, Esq.
         Cummings and Lockwood
         Four Stamford Plaza
         107 Elm Street
         P.O. Box 120
         Stamford, CT 06904-0120
         Telephone:        (203) 327-1700
         Facsimile:        (203) 351-4535

         9.9. Severability.  If any term or other provision of this Agreement is
invalid,  illegal or incapable  of being  enforced by any rule of law, or public
policy, all other conditions and provisions of this Agreement shall nevertheless
remain in full force and effect so long as the  economic or legal  substance  of
the transactions  contemplated  hereby is not affected in any manner  materially
adverse to any party. Upon such  determination  that any term or other provision
is invalid,  illegal or incapable of being  enforced,  the 




                                      -23-
<PAGE>





parties  hereto shall  negotiate in good faith to modify this Agreement so as to
effect the  original  intent of the parties as closely as possible in a mutually
acceptable  manner  in  order  that  the  transactions  contemplated  hereby  be
consummated as originally contemplated to the fullest extent possible.

         9.10.  Assignment.  Neither  this  Agreement  nor  any of  the  rights,
interests  or  obligations  hereunder  shall be  assigned  by any of the parties
hereto  (whether by operation  of law or  otherwise)  without the prior  written
consent of the other parties.

         9.11.  Interpretation.  The parties  hereto  acknowledge  that  certain
matters set forth in the  Disclosure  Schedules  are included for  informational
purposes  only,  notwithstanding  the fact that,  because they do not rise above
applicable materiality thresholds or otherwise, they would not be required to be
set forth  therein by the terms of this  Agreement  and that  disclosure of such
matters  shall not be taken as an admission by the Company that such  disclosure
is required to be made under the terms of any provision of this Agreement and in
no event shall be disclosure of such matters be deemed or interpreted to broaden
or  otherwise  amplify the  representations  and  warranties  contained  in this
Agreement.

         9.12. Governing Law. This Agreement shall be governed by, and construed
in accordance with, the Laws of the State of Connecticut applicable to contracts
executed  in and to be  performed  in that state.  All  actions and  proceedings
arising out of or relating to this  Agreement  shall be heard and  determined in
any Connecticut state or federal court.

         9.13.  Parties in Interest.  This  Agreement  shall be binding upon and
inure solely to the benefit of each party hereto, and nothing in this Agreement,
express or implied,  is intended  to or shall  confer upon any other  person any
right,  benefit  or remedy of any nature  whatsoever  under or by reason of this
Agreement.

         9.13.  Entire  Agreement.  This  Agreement  (including the Exhibits and
Schedules),  together  with the  Purchase  and  Sale  Agreement  (including  the
Exhibits and Schedules  thereto) and the Purchaser  Ancillary  Documents and the
Seller Ancillary  Documents,  constitutes the entire agreement among the parties
with respect to the subject matter hereof and,  supersedes all prior  agreements
and undertakings, both written and oral, among the parties, or any of them, with
respect to the subject matter hereof

         9.15. Execution of Counterparts. For the convenience of the parties and
to  facilitate   filing,   this  Agreement  may  be  executed  in  one  or  more
counterparts,  each of  which  shall be  deemed  an  original,  but all of which
together shall constitute one and the same document.






                                      -24-
<PAGE>






         IN WITNESS  WHEREOF,  this  Agreement  has been signed by the  Managing
Directors of Fuel-Tech N V. and each of the Purchasers,  respectively, all as of
the day and year first above written.

                                             FUEL-TECH N.V.
                                                  /s/
                                             ---------------------------------
                                             By:
                                             Title: a Managing Director

                                             PURCHASERS:

                                             /s/ RALPH E. BAILEY
                                             ---------------------------------
                                             Ralph E. Bailey

                                             /s/ DOUGLAS G. BAILEY
                                             ---------------------------------
                                             Douglas G. Bailey
                                             
                                             /s/ NOLAN R. SCHWARTZ
                                             ---------------------------------
                                             Nolan R. Schwartz

                                             /s/ GUY C. HECKMAN
                                             ---------------------------------
                                             Guy C. Heckman

                                             /s/ J. WILLIAM DRAKE
                                             ---------------------------------
                                             J. William Drake

                                             /s/ ROBERT M. DAVENPORT
                                             ---------------------------------
                                             Robert M. Davenport

                                             /s/ BETSY S. KENYON
                                             ---------------------------------
                                             Betsy S. Kenyon

                                             /s/ LINDSAY G. MORTNER
                                             ---------------------------------
                                             Lindsay G. Mortner

                                             /s/ JAMES G. HANNOOSH
                                             ---------------------------------
                                             James G. Hannoosh

                                             /s/ GENEVE E. HENDRICKS
                                             ---------------------------------
                                             Geneve E. Hendricks


                                      -25-





                                                       EXHIBIT 2 TO SCHEDULE 13D

                             SHAREHOLDERS AGREEMENT

         SHAREHOLDERS AGREEMENT,  dated as of April 30, 1998 (the "Agreement"),
by and among Fuel-Tech N.V., a Netherlands  Antilles limited  liability  company
(the  "Company"),  and the  shareholders  set forth on the signature page hereto
(each a "Shareholder", collectively, the "Shareholders").

         WHEREAS,  Fuel  Tech,  Inc.,  a  Massachusetts  corporation  ("FTI") is
acquiring  a 50%  interest  in Nalco  Fuel  Tech,  a  partnership  ("NFT")  (the
"Purchase"), pursuant to a Purchase Agreement, dated as of March 23, 1998, among
FTI,  Nalco FT, Inc.  ("Nalco FT") and Nalco Chemical  Company,  for the limited
purposes set forth therein (the "Purchase and Sale Agreement");

         WHEREAS, pursuant to a Securities Purchase Agreement, dated as of March
23, 1998 (the "Securities Purchase  Agreement"),  the Company will issue certain
shares of Common Stock, par value $.01 of the Company ("FTNV Common Stock"), and
Warrants to purchase  shares of FTNV Common Stock (the "FTNV  Warrants")  to the
Shareholders;

         WHEREAS,  each  Shareholder  will pledge the FTNV Common Stock and FTNV
Warrants as security  for the  benefit of Nalco FT and certain  related  parties
pursuant to a Bailey Pledge  Agreement,  dated as of the date hereof,  among the
Shareholders and Nalco FT (the "Pledge Agreement");

         WHEREAS,  the execution  and delivery of this  Agreement is a condition
precedent  to the closing of the  transaction(s)  set forth in the  Purchase and
Sale Agreement and the Securities Purchase Agreement.

         NOW,  THEREFORE,   in  consideration  of  the  mutual  representations,
warranties,  covenants  and  agreements  contained  herein,  and intending to be
legally bound thereby, the parties hereto agree as follows:

         1. Shares and Warrants  Subject to  Agreement.  The  provisions of this
Agreement  shall  apply to any and all  shares  of FTNV  Common  Stock  and FTNV
Warrants (and shares of FTNV Common Stock  issuable  upon the exercise  thereof)
issued to the Shareholders pursuant to the Securities Purchase Agreement.

     2. Transfer Restrictions. Except pursuant to the terms of the Bailey Pledge
Agreement (as defined in the Purchase and Sale Agreement), no Shareholder shall,
directly or indirectly, sell, distribute,  transfer, assign, pledge, hypothecate
or otherwise  dispose of or encumber (all of which acts shall be deemed included
in the term  "transfer"  as used in this  Agreement)  any shares of FTNV  Common
Stock or FTNV  Warrants,  or




                                     
<PAGE>



shares of FTNV Common Stock issuable upon the exercise thereof,  or any interest
therein, unless:

                                                                                
             (a) for so long as any  Purchaser  Obligations  (as  defined in the
Purchase and Sale Agreement)  remain  outstanding,  such transfer of FTNV Common
Stock and/or FTNV  Warrants  does not and will not,  immediately  thereafter  or
after the lapse of time,  result in a Change of Control or a Purchaser  Event of
Default (each as defined in the Purchase and Sale Agreement); and

             (b) any transferee agrees to be bound by this Agreement as if named
as a  Shareholder  herein and  executes a  counterpart  hereof and such  further
documents as may be necessary to make it a party hereto; and

             (c) such  transfer of shares of FTNV Common Stock or FTNV  Warrants
is made  pursuant to either (i) an effective  registration  statement  under the
Securities Act of 1933, as amended, and any applicable state securities laws, or
(ii) an available exemption from the registration requirements of the Securities
Act of 1933 and applicable state securities laws.

         Any  transferee  who  receives  shares of FTNV Common Stock and/or FTNV
Warrants  pursuant  to and in  accordance  with this  Section 2 is a  "Permitted
Transferee"  who  shall  be  deemed  a  Shareholder  for  all  purposes  of this
Agreement.  Any  purported  transfer of shares or FTNV Common  Stock and/or FTNV
Warrants in violation of this Agreement  shall be null and void, and the Company
shall  refuse to  recognize  any such  transfer  for any  purpose  and shall not
reflect in its records any change in  ownership  of shares or FTNV Common  Stock
and/or FTNV Warrants pursuant to such purported transfer.

         3. Corporate Governance.

             3.1 Board of Directors of FTNV.

             (a) The Company hereby agrees with the Shareholders that during the
Corporate  Governance  Term (as defined  below),  the Board of  Directors of the
Company shall consist of eight directors, of whom two shall be outside directors
(i.e.,  neither an  officer  nor  employee  of the  Company)  and one shall be a
Netherlands   Antilles   representative   director.   During  such  period,  the
Shareholders  and directors of the Company shall be entitled to nominate persons
to serve as  directors at each  meeting of  shareholders  of the Company for the
election of directors of the Company as follows:

                 (i) the  Shareholders  shall  be  entitled  to  nominate  three
persons to serve as directors  of the  Company,  one of whom shall be an outside
director;


                                      -2-
<PAGE>



                 (ii) the  Shareholders  and the  directors of the Company shall
nominate Tarma Trust Company N.V., or another  mutually  acceptable  Netherlands
Antilles person; and

                 (iii) (x) for the first meeting of  shareholders of the Company
on the date hereof at which the election of  directors  is on the agenda,  those
directors of the Company who were directors of the Company  immediately prior to
the closing of the Securities  Purchase Agreement shall nominate four directors,
one of whom shall be an outside director  (collectively,  the "Company-nominated
Directors"),  and (y) for all subsequent  meetings of  shareholders at which the
election of  directors is on the agenda,  the  Company-nominated  Directors  (or
their successors pursuant to this paragraph) shall nominate four directors,  one
of whom shall be an outside director,  as well as a sufficient number of persons
to serve as directors  in respect of any  positions  for which the  Shareholders
have not nominated persons to serve as directors pursuant to Section 3(a)(i) and
(ii) above or Section 3(c) below.

             (b) At each  meeting  of  shareholders  at which  the  election  of
directors is on the agenda,  the Company  shall  recommend to  shareholders  the
election of the designees nominated pursuant to Section 3(a)(i)-(iii) above.

             (c) Each director nominated  pursuant to Section  3(a)(i)-(iii) who
is elected to the Company's  board of directors  shall hold his office until his
death or  resignation  or until his  successor  shall have been duly elected and
qualified.  If  any  designee  of  the  Shareholders  or  the  Company-nominated
Directors (or, in the case of Section 3(a)(ii), by mutual agreement) shall cease
to serve as a director  of the Company  for any  reason,  the vacancy  resulting
thereby shall be filled by the Shareholders,  the Company-nominated Directors or
by mutual agreement,  respectively, in accordance with the provisions of Section
3(a)(i)-(iii).

     (d) "Corporate  Governance Term" shall mean (i) during the period ending on
the  fourth  anniversary  (the  "Fourth  Anniversary")  of  the  closing  of the
Securities  Purchase  Agreement,  for so  long  as the  Shareholders  own in the
aggregate at least 50% of the shares of FTNV Common Stock  acquired  pursuant to
the  Securities  Purchase  Agreement  and (ii) during the period  following  the
Fourth  Anniversary  and ending on the tenth  anniversary  of the closing of the
Securities  Purchase  Agreement,  for so  long  as the  Shareholders  own in the
aggregate at least 10% of the then outstanding  shares of FTNV Common Stock. For
purposes of this Agreement, shares of FTNV Common Stock "owned" by a Shareholder
shall  not  include  shares  obtainable  pursuant  to the  exercise  of the FTNV
Warrants  or  pursuant  to the  exercise  of  any  other  option  held  by  such
Shareholder.

         3.2 Board of Directors of FTI. For so long as the Purchaser Obligations
remain outstanding,  the Company shall elect persons nominated by the




                                      -3-
<PAGE>

Shareholders to act as directors of FTI to fill at least 50% of the positions on
FTI's board of directors.

         3.3  Actions  of the  Shareholders.  (a)  Without  either (a) the prior
approval  of the Board of  Directors  of the  Company  or (b) the prior  written
consent of all directors of FTI, each of the  Shareholders  hereby agrees not to
take any  action or cause any  person or entity to take any  action,  that would
lead  to  any  of  the  following:  (i)  any  amendment  to  FTI's  articles  of
organization or bylaws;  or (ii) any amendment to, or waiver on the Company's or
FTI's  behalf under the  Purchaser  Note,  the  Purchase  and Sale  Agreement or
Management Services Agreement.

             (b)  During  the  Corporate  Governance  Term,  at each  meeting of
shareholders  at  which  the  election  of  directors  is on  the  agenda,  each
Shareholder agrees to vote all of the shares of FTNV Common Stock held of record
by  him or her IN  FAVOR  OF  those  directors  nominated  pursuant  to  Section
3.l(a)(ii) and above.

         4. Stock Certificate Legend.

         A copy of this  Agreement  shall be filed  with  the  Secretary  of the
Company and kept with the records and minutes of the Company.  Each  certificate
representing  shares of FTNV Common  Stock owned by the  Shareholders  and their
Permitted  Transferees  (unless  registered  under  the  Securities  Act and any
applicable  state  securities  laws and/or no longer subject to the terms of the
Pledge  Agreement  and/or this  Agreement)  shall be stamped or imprinted with a
legend (in addition to any securities law legend) in the following form:

           "THESE  SECURITIES ARE SUBJECT TO, AND THE TRANSFER OF
           THESE  SECURITIES  ARE  RESTRICTED  BY, THE TERMS OF A
           PLEDGE AGREEMENT AND A SHAREHOLDERS AGREEMENT,  COPIES
           OF WHICH ARE AVAILABLE FROM THE COMPANY UPON REQUEST."

         5. Covenants of the Shareholders.

     (a) Confidential Information.  Shareholders acknowledge and agree that they
may  receive  during the term of this  Agreement  information  from FTNV and its
subsidiaries,  affiliates  and investees  that is  non-public,  confidential  or
proprietary in nature (the "Confidential Information").  Shareholders agree that
in no event  shall they  disclose,  transfer,  copy,  duplicate  or publish  any
Confidential  Information to any third party without the prior written  consent,
which consent may be withheld in FTNV's sole  discretion.  Shareholders  further
agree that they shall not utilize any  Confidential  Information for any purpose
whatsoever other than for the purpose of performing their obligations under this
Agreement.  Confidential  Information does not include information which (i) was
or becomes generally available to the public other than as a result of an act or
omission in violation of this Section 5(a) by Shareholders,  (ii) was or



                                      -4-
<PAGE>

becomes available to Shareholders on a nonconfidential basis from a source other
than the  originating  party,  or (iii) was already known to Shareholders at the
time  of  receipt  thereof  without  legal  restriction  to the  confidentiality
thereof.

         (b)  Noncompetition.  (i) Any  Shareholder  who holds a  position  as a
director  of FTNV or FTI  during  the  term of this  Agreement  (a  "Shareholder
Director")  agrees that,  during the term that such Shareholder is a Shareholder
Director and for a period of two years  thereafter (the  "Non-Compete  Period"),
such Shareholder  Director will not,  directly or indirectly:  (A) engage in, or
control,  invest in, provide  material advice or assistance to, manage,  benefit
from  exert  material  influence  upon any  person or  entity  that  engages  in
manufacturing,  licensing  or sale  anywhere in the world of (i) any chemical or
non-chemical  process,  system,  technology or product that removes, or prevents
the  formation  of,  oxides  of  nitrogen  and  sulfur  or  particulates  from a
stationary  combustion  unit,  (ii) any chemical  process for the treatment of a
combustor used to prevent fireside  corrosion,  fouling or stagging (known under
the name  "Fuel  Chem" in the case of the Joint  Venture),  (iii)  any  computer
modeling or software  development related to the foregoing  businesses,  or (iv)
any use of Urea SCR NOx  reduction  for mobile  applications  (the  "Competitive
Activity");  or (B) induce,  attempt or persuade any employee of FTNV,  FTI, the
Joint Venture Entities or the Wholly-Owned  Subsidiaries to terminate his or her
employment  relationship  in order to enter into  competitive  employment.  (ii)
Without  limiting  the right of FTNV to pursue  all  other  legal and  equitable
remedies  available in the event of a violation by the Shareholder  Directors of
covenants  contained in this Section 5(b), it is expressly  agreed that remedies
other than injunctive or other equitable relief cannot fully compensate FTNV for
such a  violation  and  that  FTNV  shall be  entitled  to  injunctive  or other
equitable relief to prevent any such violation or continuing violation thereof.

     (c)  Shareholders  agree  that  during  the  period  ending  on  the  third
anniversary of the closing of the Securities Purchase  Agreement,  they will not
themselves or in concert with any other person or group  purchase any additional
securities  of the Company  (other than the shares of FTNV Common Stock and FTNV
Warrants (and shares of FTNV Common Stock  issuable  upon the exercise  thereof)
issued to the Shareholders  pursuant to the Securities Purchase Agreement) which
in themselves or in combination with transactions by other parties would tend to
or have the effect of imposing a limitation  on the ability of FTI to deduct its
net loss carry forwards for U.S. income tax purposes.

         6. Miscellaneous Provisions.

         (a) Notices.  Any notices required hereunder shall be sent by certified
or  registered  mail,  and shall be  addressed  to the address of the  Company's
corporate  headquarters  in the case of any  notice  to the  Company,  and until
changed by 



                                      -5-
<PAGE>

notice to the Company,  to the Shareholders at c/o American Bailey  Corporation,
Financial Centre, 695 East Main Street, Stamford, CT 06901.

         (b)  Amendments  and Waivers.  The  provisions of this Agreement may be
amended and the Company may take action  herein  prohibited,  or omit to perform
any act herein  required to be  performed by it, if the Company has obtained the
written consent of the Shareholders.

         (c)  Successors  and Assigns.  All  covenants  and  agreements  in this
Agreement  by or on behalf of any of the  parties  hereto will bind and inure to
the  benefit  of,  in the  case of the  Company,  its  successors,  assigns  and
transferees and, in the case of the Shareholders,  their Permitted  Transferees.
Except  as  expressly  provided  herein,  the  rights  and  obligations  of  the
Shareholders may not be transferred.

         (d) Governing Law. All questions concerning the construction,  validity
and  interpretation  of this Agreement will be governed by the laws of the State
of Connecticut.

         (e)  Counterparts.  This  Agreement  may be  executed  in any number of
counterparts, each of which shall be considered to be an original instrument and
to be effective as of the date first written above.

         (f)  Severability.  In the event any one or more of the  provisions  of
this Agreement shall for any reason be held invalid,  illegal or  unenforceable,
the remaining provisions of this Agreement shall be unimpaired, and the invalid,
illegal or unenforceable  provisions shall be replaced by a mutually  acceptable
valid, legal and enforceable provision,  which comes closest to the intention of
the parties underlying the invalid, illegal or unenforceable provision.

     (g) Specific  Performance.  The parties hereto acknowledge that there would
be no  adequate  remedy  at  law  if  any  party  fails  to  perform  any of its
obligations hereunder, and accordingly agree that each party, in addition to any
other remedy to which it may be entitled at law or in equity,  shall be entitled
to  injunctive  relief,   including  specific   performance,   to  enforce  such
obligations  without  the  posting of any bond,  and,  if any  action  should be
brought in equity to enforce any of the provision of this Agreement, none of the
parties hereto shall raise the defense that there is an adequate remedy at law.

         (h)  Insurance.  The  Company  will use its best  efforts to  maintain,
without  any gaps or lapses in  coverage,  directors'  and  officers'  liability
insurance with terms and conditions no less favorable than those in existence on
the date hereof.


                                      -6-
<PAGE>


         (i) Term. The term of this  Agreement  shall commence on the date first
set forth above and  terminate on the later of (i) the  satisfaction  in full of
the Purchaser Obligations or (ii) the lapsing of the Corporate Governance Term.


                                      -7-
<PAGE>



         IN WITNESS WHEREOF,  the parties have executed this Agreement as of the
date first written above.

                                        FUEL-TECH N.V.

                                                  /s/
                                        -----------------------------------
                                        Name:
                                        Title:

                                        PURCHASERS:

                                             /s/ RALPH E. BAILEY
                                             ---------------------------------
                                             Ralph E. Bailey

                                             /s/ DOUGLAS G. BAILEY
                                             ---------------------------------
                                             Douglas G. Bailey
                                             
                                             /s/ NOLAN R. SCHWARTZ
                                             ---------------------------------
                                             Nolan R. Schwartz

                                             /s/ GUY C. HECKMAN
                                             ---------------------------------
                                             Guy C. Heckman

                                             /s/ J. WILLIAM DRAKE
                                             ---------------------------------
                                             J. William Drake

                                             /s/ ROBERT M. DAVENPORT
                                             ---------------------------------
                                             Robert M. Davenport

                                             /s/ BETSY S. KENYON
                                             ---------------------------------
                                             Betsy S. Kenyon

                                             /s/ LINDSAY G. MORTNER
                                             ---------------------------------
                                             Lindsay G. Mortner

                                             /s/ JAMES G. HANNOOSH
                                             ---------------------------------
                                             James G. Hannoosh

                                             /s/ GENEVE E. HENDRICKS
                                             ---------------------------------
                                             Geneve E. Hendricks

                                      -8-






                                                       EXHIBIT 3 TO SCHEDULE 13D

                             BAILEY PLEDGE AGREEMENT

     THIS BAILEY PLEDGE AGREEMENT (this "PLEDGE  AGREEMENT"),  dated as of April
30, 1998, is made by each of the undersigned (hereinafter  collectively referred
to as the "PLEDGORS"  and  individually  as a "PLEDGOR"),  in favor of NALCO FT,
INC., a Delaware  corporation (the "SELLER"),  in its individual capacity and as
agent (in such  capacity,  the "NALCO  AGENT") for each of the Nalco Parties (as
defined below).

                              W I T N E S S E T H:

         WHEREAS, Fuel Tech, Inc., a Massachusetts corporation (the "PURCHASER")
and the Seller have entered into a Purchase Agreement dated as of March 23, 1998
(the  "PURCHASE  AGREEMENT"),  pursuant  to which the  Purchaser  has  agreed to
acquire  from the Seller,  and the Seller has agreed to sell to  Purchaser,  the
Seller's fifty percent (50%) partnership  interest (the "PARTNERSHIP  INTEREST")
in Nalco Fuel  Tech,  a  Delaware  general  partnership  (the  "JOINT  VENTURE")
organized under a Partnership Agreement dated as of January 31, 1990, as amended
(the "PARTNERSHIP  AGREEMENT"),  between the Seller and the Purchaser;  

     WHEREAS,  concurrently  with the  consummation  of the  acquisition  by the
Purchaser of the Partnership Interest under the Purchase Agreement, the Pledgors
and Fuel-Tech N.V., a Netherlands  Antilles limited  liability  company ("FTNV")
and the owner of all the issued and outstanding  capital stock of the Purchaser,
will consummate the transactions contemplated by a Securities Purchase Agreement
dated as of March 23, 1998 (the "Securities  Purchase  Agreement"),  pursuant to
which the Pledgors  shall receive  stock and warrants to purchase  stock in FTNV
(and the right to register such stock under certain circumstances);

     WHEREAS,  it is a  condition  precedent  to the  Closing  of  the  Purchase
Agreement that each Pledgor execute and deliver this Pledge Agreement; and

         WHEREAS,  it is in the best  interests  of each Pledgor to execute this
Pledge  Agreement  inasmuch as each Pledgor will derive  substantial  direct and
indirect  benefits  from the  acquisition  of the  Partnership  Interest  by the
Purchaser;

         NOW  THEREFORE,  for good and valuable  consideration,  the receipt and
adequacy of which is hereby  acknowledged,  each Pledgor agrees, for the benefit
of the Nalco Agent and each Nalco Party, as follows:


<PAGE>
                                                                               2







                                   ARTICLE I.
                                   DEFINITIONS

         SECTION 1.1. PURCHASE AGREEMENT  DEFINITIONS.  Unless otherwise defined
herein or the context otherwise  requires,  terms used in this Pledge Agreement,
including its preamble and recitals,  have the meanings provided in the Purchase
Agreement.  

         SECTION 1.2. U.C.C. DEFINITIONS. Unless otherwise defined herein or the
context otherwise requires,  terms for which meanings are provided in the U.C.C.
are used in this Pledge  Agreement,  including its preamble and  recitals,  with
such meanings.

         SECTION  1.3.  CERTAIN  TERMS.  The  following  terms  (whether  or not
underscored)  when used in this Pledge  Agreement,  including  its  preamble and
recitals,  shall have the following  meanings  (such  definitions  to be equally
applicable  to the  singular and plural forms  thereof):  

     "ASSIGNED  AGREEMENTS"  means the agreements listed in ITEM B of ATTACHMENT
1, as such  agreements  may be amended,  amended and restated,  supplemented  or
otherwise modified from time to time.

     "BAILEY CALL  AGREEMENTS"  means that certain Call  Agreements  dated as of
March 23,  1998,  among  Ralph E.  Bailey,  Douglas G. Bailey and certain of the
other Pledgors.

     "COLLATERAL" is defined in SECTION 2.1.

     "COLLATERAL  DOCUMENT"  means any of this Pledge  Agreement,  the Fuel Tech
Pledge Agreement or the Security Agreement.

         "DISTRIBUTIONS"  means  all  stock  dividends,  liquidating  dividends,
shares of stock  resulting  from (or in  connection  with the exercise of) stock
splits,  reclassifications,  warrants,  options,  non-cash  dividends,  mergers,
consolidations,  and all other  distributions  (whether similar or dissimilar to
the  foregoing) on or with respect to any Pledged  Shares,  Pledged  Warrants or
other shares of capital  stock  constituting  Collateral,  but shall not include
Dividends.

         "DIVIDENDS" means cash dividends and cash distributions with respect to
any Pledged  Shares or other  Pledged  Property  made in the ordinary  course of
business and not as a liquidating dividend.

         "EVENT OF DEFAULT" means a Purchaser Event of Default.

         "FTNV" is defined in the SECOND RECITAL.

         "JOINT VENTURE" is defined in the FIRST RECITAL.



<PAGE>
                                                                               3






         "NALCO AGENT" is defined in the PREAMBLE.

         "NALCO PARTIES" means the Nalco Agent, the Seller, Nalco and each other
Person  entitled  to   indemnification  by  the  Purchaser  under  the  Purchase
Agreement.

         "OBLIGOR" means each Person, including the Purchaser,  liable under the
Purchase Agreement, the Purchaser Note or any Collateral Document.

         "PARTNERSHIP AGREEMENT" is defined in the FIRST RECITAL.

         "PARTNERSHIP INTEREST" is defined in the FIRST RECITAL.

         "PERMITTED  TRANSFER"  shall mean the  transfer  of  Pledged  Shares or
Pledged  Warrants  by a Pledgor as the result of (i) the death of such  Pledgor,
(ii) a transfer in trust or to a  partnership,  limited  partnership  or limited
liability  company,  in each case all of the  beneficial  interests of which are
held,  directly  or  indirectly,  for the  benefit  of the  Pledgor  or  his/her
immediate  family,  (iii)  divorce  proceedings  involving  such  Pledgor,  (iv)
bankruptcy  proceedings  involving  a Pledgor  or by  operation  of law,  or (v)
pursuant  to one  of  the  Bailey  Call  Agreements;  provided  that  each  such
transferee  Person  shall have  delivered  to the Nalco  Agent (x) such stock or
warrants,  in due form for  transfer,  and (y) an executed  counterpart  of this
Pledge Agreement.

         "PLEDGE AGREEMENT" is defined in the PREAMBLE.

         "PLEDGED PROPERTY" means all Pledged Shares, all Pledged Warrants,  all
other pledged shares of capital stock or promissory notes, all other securities,
all  assignments of any amounts due or to become due or to become due in respect
of any such shares,  notes or other securities,  all other instruments which are
now being  delivered  by any Pledgor to the Nalco Agent or may from time to time
hereafter  be  delivered  by any  Pledgor to the Nalco  Agent for the purpose of
being  pledged  under this  Pledge  Agreement,  and all  proceeds  of any of the
foregoing.

         "PLEDGED SHARE ISSUER" means FTNV.

         "PLEDGED SHARES" means all shares of capital stock of the Pledged Share
Issuer  issued  to the  Pledgors  in  connection  with the  Securities  Purchase
Agreement  which are  delivered  by any  Pledgor  to the Nalco  Agent as Pledged
Property hereunder, together with any Distributions thereon.

         "PLEDGED  WARRANTS"  means all warrants or options to purchase  capital
stock of the Pledged Share Issuer issued to the Pledgors in connection  with the
Securities  Purchase  Agreement  which are delivered by any Pledgor to the Nalco
Agent as Pledged Property hereunder, together with any Distributions thereon.

         "PLEDGOR" is defined in the PREAMBLE.




<PAGE>
                                                                               4





         "PURCHASE AGREEMENT" is defined in the FIRST RECITAL.

         "PURCHASER" is defined in the FIRST RECITAL.

         "SECURITIES PURCHASE AGREEMENT" is defined in the SECOND RECITAL.

         "SELLER" is defined in the PREAMBLE.

         "U.C.C." means the Uniform Commercial Code as in effect in the State of
Illinois,  except to the  extent  that the  validity  or the  perfection  of the
security interest hereunder, or remedies hereunder, in respect of any particular
Collateral  are governed by the laws of a  jurisdiction  other than the State of
Illinois,  in which case "U.C.C." means the Uniform Commercial Code as in effect
in such jurisdiction.

                                   ARTICLE II.
                                     PLEDGE

         SECTION 2.1. GRANT OF SECURITY  INTEREST.  Each Pledgor hereby pledges,
hypothecates,  assigns, charges, mortgages, delivers, and transfers to the Nalco
Agent,  for its benefit,  and hereby grants to the Nalco Agent,  for its benefit
and the ratable benefit of the Nalco Parties, a continuing security interest in,
all of such Pledgor's right, title and interest in and to the following property
(with respect to each Pledgor, such Pledgor's "COLLATERAL"):

            a) the number of shares of capital stock of the Pledged Share Issuer
specified in ITEM A of ATTACHMENT 1 opposite the name of such Pledgor;

            b) warrants to purchase the number of shares of capital stock of the
Pledged  Share Issuer  specified in ITEM A of  ATTACHMENT 1 opposite the name of
such Pledgor;

            c) all other Pledged Shares issued from time to time to such Pledgor
pursuant  to  the  exercise  of  Pledged   Warrants  or  in  connection  with  a
Distribution on the Pledged Shares;
                           
            d) all  other  Pledged  Property  of such  Pledgor,  whether  now or
hereafter delivered to the Nalco Agent in connection with this Pledge Agreement;

            e) all Dividends,  Distributions,  interest,  and other payments and
rights with respect to any Pledged Property of such Pledgor;


<PAGE>
                                                                               5




            f) the Assigned Agreements,  including,  without limitation, (i) all
rights of such Pledgor to receive  moneys due or to become due under or pursuant
to the Assigned Agreements,  (ii) all rights of such Pledgor to receive proceeds
of any insurance,  indemnity,  warranty or guaranty with respect to the Assigned
Agreements,  (iii) all claims of such  Pledgor  for  damages  arising out of any
breach of or default under the Assigned Agreements,  and (iv) all rights of such
Pledgor to terminate,  amend,  supplement,  modify or exercise rights or options
under the Assigned  Agreements,  to perform thereunder and to compel performance
and otherwise exercise all remedies thereunder; and

            g) all proceeds of any of the foregoing.

         SECTION 2.2.  SECURITY FOR SECURED  OBLIGATIONS.  This Pledge Agreement
secures  the  payment  in full of all  Purchaser  Obligations  now or  hereafter
existing.  The Nalco Agent and the Nalco  Parties  agree that they will  forbear
from  foreclosing  or otherwise  exercising  remedies upon any of the Collateral
until  such time as at least  ninety  (90) days  have  passed  since an Event of
Default has occurred,  the Purchaser Obligations have become due and payable and
the Nalco Agent has commenced exercise of one or more of its applicable remedies
against the "Collateral" (as defined in the Fuel Tech Pledge  Agreement) and the
"Collateral"  (as  defined in the  Security  Agreement),  and such  exercise  of
remedies  under the Fuel Tech Pledge  Agreement  and the Security  Agreement (as
conducted by the Nalco Agent and/or the Nalco  Parties in their sole  discretion
but in good faith) were  insufficient  to satisfy the Purchaser  Obligations  in
full during such 90-day forbearance period; provided,  however, that such 90-day
forbearance  period shall not be applicable (i) to any Pledgor under this Pledge
Agreement who shall have died or be involved in a bankruptcy  proceeding or (ii)
if Fuel Tech shall at such time be involved in a bankruptcy  proceeding  and the
Nalco Agent shall be prevented as a result of the automatic stay from exercising
such  remedies;  and  provided  further,  that  so long as the  Nalco  Agent  is
proceeding  in good  faith in the  exercise  of such  remedies,  nothing in this
Section 2.2 shall require the Nalco Agent to be successful in realizing upon any
of such "Collateral."

         SECTION  2.3.  DELIVERY  OF  PLEDGED  PROPERTY.   All  certificates  or
instruments  representing  or evidencing any  Collateral,  including all Pledged
Shares and all Pledged Warrants,  shall be delivered to and held by or on behalf
of the Nalco Agent  pursuant  hereto,  shall be in suitable form for transfer by
delivery,  and shall be accompanied by all necessary  instruments of transfer or
assignment, duly executed in blank.

         SECTION  2.4.  DIVIDENDS  ON  PLEDGED  SHARES.  In the  event  that any
Dividend is to be paid on any  Pledged  Share at a time when no Event of Default
has  occurred  and is  continuing,  such  Dividend  may be paid  directly to the
applicable Pledgor. If any Event of Default has occurred and is continuing, then
any such Dividend or payment shall be paid directly to the Nalco Agent.



<PAGE>
                                                                               6






         SECTION  2.5.  CONTINUING  SECURITY  INTEREST;  TRANSFER  OF  PURCHASER
OBLIGATIONS.  This Pledge Agreement shall create a continuing  security interest
in the  Collateral  and  shall:  

     a) remain in full  force and  effect  until the  indefeasible  payment  and
satisfaction  in  full  of  all  Purchaser   Obligations   (subject  to  earlier
termination as provided in this SECTION);

     b) be  binding  upon  each  Pledgor  and its  successors,  transferees  and
assigns; and

     c)  inure,  together  with the  rights  and  remedies  of the  Nalco  Agent
hereunder,  to the  benefit of the Nalco  Agent and each other  Nalco  Party and
their respective successors, transferees and assigns.

     Upon the  indefeasible  payment and  satisfaction  in full of the Purchaser
Note and all Earnout  Payments,  the  security  interest  granted  herein  shall
terminate and all rights to the  Collateral of each Pledgor shall revert to such
Pledgor;  PROVIDED that there are at such time no existent  claims for indemnity
under Section 10.4 of the Purchase Agreement; PROVIDED FURTHER that if there are
any such claims for such  indemnity at such time,  then the  security  interests
granted  hereby  shall  remain to secure the  payment of any  amounts  which may
become due and payable in respect of such  claims;  and  PROVIDED  FURTHER  that
thereafter upon the  indefeasible  payment and  satisfaction in full of all such
claims for  indemnity  under said Section 10.4 of the  Purchase  Agreement,  the
security  interest  granted  hereby  shall  terminate  and  all  rights  to  the
Collateral  shall revert to the Pledgor.  Upon any such  termination,  the Nalco
Agent will, at such Pledgor's sole expense, deliver to such Pledgor, without any
representations, warranties or recourse of any kind whatsoever, all certificates
and  instruments  representing  or  evidencing  all  Pledged  Shares and Pledged
Warrants (to the extent that such Pledged  Warrants have not yet been exercised)
pledged  pursuant  hereto by such Pledgor,  together  with all other  Collateral
pledged  pursuant hereto by such Pledgor and held by the Nalco Agent  hereunder,
and execute and deliver to such  Pledgor such  documents  as such Pledgor  shall
reasonably request to evidence such termination.

         SECTION 2.6. SECURITY INTEREST ABSOLUTE.  All rights of the Nalco Agent
and the  security  interests  granted  to the  Nalco  Agent  hereunder,  and all
obligations  of each Pledgor  hereunder,  shall be absolute  and  unconditional,
irrespective of

            a) any lack of validity or enforceability of the Purchase Agreement,
the Purchaser Note or any Collateral Document;

            b) the failure of any Nalco Party

                 (i) to assert  any claim or demand or to  enforce  any right or
remedy  against the  Purchaser,  any other Obligor or any other Person



<PAGE>
                                                                               7






under  the  provisions  of the  Purchase  Agreement,  the  Purchaser  Note,  any
Collateral Document or otherwise, or

                 (ii)  to  exercise  any  right  or  remedy  against  any  other
guarantor of, or collateral securing,  any Purchaser Obligation of the Purchaser
or any other Obligor;

            c) any change in the time,  manner or place of payment of, or in any
other term of, all or any of the Purchaser  Obligations or any other  extension,
compromise or renewal of any Purchaser Obligations of the Purchaser or any other
Obligor;

            d) any  reduction,  limitation,  impairment  or  termination  of any
Purchaser  Obligations  of the  Purchaser  or any other  Obligor for any reason,
including any claim of waiver, release, surrender, alteration or compromise, and
shall not be subject to (and each Pledgor hereby waives any right to or claim of
any defense or set-off,  counterclaim,  recoupment or termination  whatsoever by
reason of the invalidity, illegality, nongenuineness,  irregularity, compromise,
unenforceability of, or any other event or occurrence  affecting,  any Purchaser
Obligations of the Purchaser, any other Obligor or otherwise;

            e) any amendment to,  rescission,  waiver, or other modification of,
or any consent to departure  from,  any of the terms of the Purchase  Agreement,
the Purchaser Note or any Collateral Document;
                          
            f) any addition,  exchange,  release, surrender or non-perfection of
any  collateral  (including  the  Collateral),  or any amendment to or waiver or
release of or addition to or consent to departure from any guaranty,  for any of
the Purchaser Obligations of the Company or any other Obligor; or

            g) any  other  circumstances  which  might  otherwise  constitute  a
defense available to, or a legal or equitable  discharge of, the Purchaser,  any
other Obligor, any surety or any guarantor.
                                  
                                  ARTICLE III.
                         REPRESENTATIONS AND WARRANTIES

         Each Pledgor  represents and warrants unto each Nalco Party,  as at the
date of each pledge and delivery  hereunder  (including each pledge and delivery
of Pledged  Shares and Pledged  Warrants)  by such Pledgor to the Nalco Agent of
any Collateral, as follows:

         SECTION  3.1.  POWER,  AUTHORITY,  ETC.  Each  Pledgor  has  power  and
authority  to execute,  deliver and  perform its  obligations  under this Pledge
Agreement and to pledge the Collateral pledged by it pursuant hereto.



<PAGE>
                                                                               8




     SECTION 3.2. DUE AUTHORIZATION,  NON-CONTRAVENTION,  ETC. The execution and
delivery by each Pledgor of this Pledge  Agreement,  and the performance by each
Pledgor of its obligations hereunder,  the pledge of the Collateral provided for
herein by such Pledgor and all other actions incidental to any thereof have been
duly  authorized by all  necessary  action,  do not and will not conflict  with,
result in any violation of, or constitute  any default  under,  any provision of
any organizational  document or contract,  agreement,  indenture,  instrument or
other  document of such Pledgor or any law or  governmental  regulation or court
decree or order and will not result in or require the creation or  imposition of
any Lien on any of such Pledgor's  properties  pursuant to the provisions of any
such contract, agreement, indenture, instrument or document.

         SECTION 3.3. GOVERNMENT APPROVAL,  REGULATION, ETC. No authorization or
approval or other action by, and no notice to or filing with,  any  governmental
authority or regulatory  body or other Person is required for the due execution,
delivery or performance by any Pledgor of this Pledge  Agreement.  No Pledgor is
an investment  company within the meaning of the Investment  Company Act of 1940
or a "holding company," or a "subsidiary  company" of a "holding company," or an
"affiliate"  of a "holding  company" or of a "subsidiary  company" of a "holding
company" within the meaning of the Public Utility Holding Company Act of 1935.

         SECTION  3.4.  VALIDITY,  ETC.  This  Pledge  Agreement  has been  duly
executed and delivered by each Pledgor, constitutes the legal, valid and binding
obligation of each Pledgor  enforceable in accordance with its terms and creates
a valid security interest in the Collateral of each Pledgor securing the payment
of the Purchaser Obligations.

         SECTION 3.5.  OWNERSHIP,  NO LIENS,  ETC. Each Pledgor is the legal and
beneficial  owner of (and has full right and authority to pledge and assign) any
Collateral  pledged and  assigned to the Nalco  Agent by such  Pledgor  pursuant
hereto,  free and  clear of all  Liens,  except  any lien or  security  interest
granted pursuant hereto in favor of the Nalco Agent.

         SECTION 3.6. VALID SECURITY  INTEREST.  The delivery of such Collateral
to the Nalco Agent is effective  to create a valid,  perfected,  first  priority
security  interest in such  Collateral  and all proceeds  thereof,  securing the
Purchaser Obligations. No filing or other action will be necessary to perfect or
protect such security interest.

     SECTION 3.7. AS TO PLEDGED SHARES AND PLEDGED WARRANTS.  In the case of any
Pledged Shares and Pledged Warrants  constituting  such Collateral,  all of such
Pledged  Shares and Pledged  Warrants are duly  authorized  and validly  issued,
fully paid, and nonassessable,  and constitute all of the issued and outstanding
shares of capital stock,  warrants to purchase  capital stock and other debt and
equity securities of the Pledged Share Issuer that are beneficially owned by the
Pledgors.

         SECTION 3.8. AS TO ASSIGNED AGREEMENTS.  Each Assigned Agreement (i) is
legal,  valid and binding on the Pledgor,  is in full force and effect and shall
continue in full 

<PAGE>
                                                                               9






force and effect without penalty or other adverse consequence as a result of the
assignment of such Assigned Agreement  hereunder and (ii) to each Pledgor's best
knowledge, is legal, valid and binding on the other parties thereto. None of the
Pledgors and, to each Pledgors best knowledge,  none of the other parties to any
Assigned  Agreement,  are in  breach  of,  or in  default  under,  any  Assigned
Agreement.

         SECTION 3.9. AUTHORIZATION,  APPROVAL, ETC. No authorization, approval,
or other action by, and no notice to or filing with, any governmental authority,
regulatory body or any other Person is required either

            a) for the pledge by any Pledgor of any Collateral  pursuant to this
Pledge  Agreement or for the execution,  delivery and performance of this Pledge
Agreement by any Pledgor; or
                           
            b) for the exercise by the Nalco Agent of the voting or other rights
provided for in this Pledge Agreement,  or (except,  with respect to any Pledged
Shares or Pledged Warrants,  as may be required in connection with a disposition
of such Pledged  Shares or Pledged  Warrants by laws  affecting the offering and
sale of securities generally) the remedies in respect of the Collateral pursuant
to this Pledge Agreement.

                                   ARTICLE IV.
                                    COVENANTS

     SECTION 4.1. PROTECT COLLATERAL;  FURTHER ASSURANCES,  ETC. No Pledgor will
sell, assign,  transfer,  pledge, or encumber in any other manner any Collateral
(except in favor of the Nalco Agent  hereunder or in connection with a Permitted
Transfer).  Each  Pledgor  will  warrant  and defend the right and title  herein
granted unto the Nalco Agent by such Pledgor in and to the  Collateral  (and all
right, title and interest  represented by the Collateral pledged pursuant hereto
by such Pledgor) against the claims and demands of all Persons whomsoever.  Each
Pledgor  agrees that at any time,  and from time to time, at the expense of such
Pledgor, such Pledgor will promptly execute and deliver all further instruments,
and take all further  action,  that may be necessary or  desirable,  or that the
Nalco Agent may reasonably request, in order to perfect and protect any security
interest  granted or  purported  to be granted  hereby and the  priority of such
security  interest  or to enable the Nalco  Agent to  exercise  and  enforce its
rights and remedies hereunder with respect to any Collateral.

         SECTION 4.2.  STOCK POWERS,  ETC. Each Pledgor  agrees that all Pledged
Shares,  all other  shares of  capital  stock  constituting  Collateral  and all
Pledged  Warrants  delivered by such Pledgor  pursuant to this Pledge  Agreement
will be  accompanied  by duly  executed  undated  blank stock  powers,  or other
equivalent  instruments of transfer  acceptable to the Nalco Agent. Each Pledgor
will, from time to time upon the request of the Nalco Agent, promptly deliver to
the  Nalco  Agent  such  stock  powers,   instruments  and  similar   documents,

<PAGE>
                                                                              10





satisfactory  in form and  substance  to the Nalco  Agent,  with  respect to the
Collateral  as the Nalco Agent may request and will,  from time to time upon the
request of the Nalco Agent made at any time when an Event of Default  shall have
occurred and be  continuing,  promptly  transfer any Pledged  Shares,  any other
shares of capital stock constituting Collateral and any Pledged Warrants pledged
by such Pledgor  pursuant hereto into the name of any nominee  designated by the
Nalco Agent.

     SECTION 4.3.  CONTINUOUS  PLEDGE.  Each Pledgor  will,  at all times,  keep
pledged to the Nalco Agent  pursuant  hereto all Pledged  Shares pledged by such
Pledgor  pursuant  hereto  and all other  shares of capital  stock  constituting
Collateral,  all Dividends and  Distributions  with respect  thereto all Pledged
Warrants  pledged by such  Pledgor  pursuant  thereto,  all  Distributions  with
respect  thereto  (including,  without  limitation,  all Pledged  Shares  issued
pursuant to the exercise of Pledged Warrants) and all other Collateral and other
securities,  instruments,  proceeds, and rights from time to time received by or
distributable  to such  Pledgor  in respect  of any  Collateral  pledged by such
Pledgor pursuant hereto.

         SECTION 4.4. VOTING AND EXERCISE RIGHTS;  DIVIDENDS,  ETC. Each Pledgor
agrees:

            a) after any Event of Default shall have occurred and be continuing,
promptly upon receipt  thereof by such Pledgor and without any request  therefor
by the Nalco Agent,  to deliver  (properly  endorsed  where  required  hereby or
requested  by the Nalco Agent) to the Nalco Agent all  Dividends,  Distributions
(to the  extent  any  such  Distribution  was  not  theretofore  required  to be
furnished  to the Nalco  Agent  pursuant  to SECTION  4.3),  all  interest,  all
principal,  all other cash payments,  and all proceeds of the Collateral pledged
by such  Pledgor  pursuant  hereto,  all of which  shall be applied by the Nalco
Agent as additional Collateral in accordance with SECTION 6.4;

            b) after any Event of Default  shall have occurred and be continuing
and the Nalco Agent has notified any Pledgor of the Nalco  Agent's  intention to
exercise its voting power under this SECTION 4.4(B)

                 (i) the Nalco  Agent may  exercise  (to the  exclusion  of such
Pledgor) the voting power,  exercise rights and all other  incidental  rights of
ownership with respect to any Pledged Shares,  any other shares of capital stock
constituting  Collateral  and any  Pledged  Warrants  pledged  by  such  Pledgor
pursuant  hereto,  and each Pledgor hereby grants the Nalco Agent an irrevocable
proxy,  exercisable  under such  circumstances,  to vote such Pledged Shares and
such other Collateral and to exercise such Pledged Warrants; and

<PAGE>
                                                                              11






                 (ii)  promptly  to deliver to the Nalco  Agent such  additional
proxies  and other  documents  as may be  necessary  to allow the Nalco Agent to
exercise such voting power and exercise  rights.  

All Dividends,  Distributions,  interest, principal, cash payments, and proceeds
which  may at any time and from  time to time be held by any  Pledgor  but which
such  Pledgor is then  obligated  to deliver to the Nalco  Agent,  shall,  until
delivery to the Nalco Agent, be held by such Pledgor separate and apart from its
other property in trust for the Nalco Agent.  The Nalco Agent agrees that unless
an Event of Default shall have  occurred and be  continuing  and the Nalco Agent
shall have given the notice  referred  to in SECTION  4.4(B),  (i) each  Pledgor
shall have the  exclusive  voting  power  with  respect to any shares of capital
stock (including any of the Pledged Shares)  constituting  Collateral pledged by
such Pledgor pursuant hereto and the Nalco Agent shall, upon the written request
of such Pledgor,  promptly deliver such proxies and other documents,  if any, as
shall be reasonably  requested by such Pledgor which are necessary to allow such
Pledgor to exercise voting power with respect to any such share of capital stock
(including any of the Pledged  Shares)  constituting  Collateral,  and (ii) each
Pledgor shall have the exclusive rights to exercise any Pledged Warrants pledged
by such  Pledgor  pursuant  hereto and the Nalco Agent  shall,  upon the written
request of such Pledgor,  promptly deliver such proxies and other documents,  if
any, as shall be  reasonably  requested by such Pledgor  which are  necessary to
allow such Pledgor to exercise  such  Pledged  Warrants;  PROVIDED  that no vote
shall be cast, or consent,  waiver or ratification  given, or exercise or action
taken by such Pledgor that would impair any Collateral or be  inconsistent  with
or violate any  applicable  provision of the  Purchase  Agreement or this Pledge
Agreement).

         SECTION  4.5.   SPECIAL   PROVISIONS   WITH  RESPECT  TO  THE  ASSIGNED
AGREEMENTS.

            a) Each Pledgor shall at its expense:

                 (i)  perform  and  observe  all  terms  and  provisions  of the
Assigned  Agreements  to be performed  or observed by it,  maintain the Assigned
Agreements  in full  force  and  effect,  enforce  the  Assigned  Agreements  in
accordance with their terms, and take all such action to such end as may be from
time to time requested by the Nalco Agent; and

     (ii) furnish to the Nalco Agent,  promptly upon receipt thereof, (A) copies
of all  Assigned  Agreements  and,  subject to CLAUSE (B) of this  Section,  any
amendments, amendments and restatements, supplements, modifications, and waivers
thereto and any consents and approvals relating thereto,  in each case certified
by an officer of such Pledgor, and (B) copies of all notices, requests and other
documents received by such Pledgor under or pursuant to the Assigned Agreements,
and from  time to time (C)  furnish  to the Nalco  Agent  such  information  and
reports  regarding  the Assigned


<PAGE>
                                                                              12





Agreements as the Nalco Agent may reasonably request and (D) upon request of the
Nalco Agent make to the other parties under the Assigned Agreements such demands
and  requests  for  information  and  reports or for  action as such  Pledgor is
entitled to make under the Assigned Agreements.

            b) No Pledgor shall (without the written consent of Secured Party):

                 (i)  cancel or  terminate  any of the  Assigned  Agreements  or
consent to or accept any cancellation or termination thereof;

                 (ii) amend or otherwise modify the Assigned  Agreements or give
any consent, waiver or approval thereunder;

                 (iii)  waive  any  default  under  or  breach  of the  Assigned
Agreements;

                 (iv) consent to or permit or accept any  prepayment  of amounts
to become due under or in  connection  with the Assigned  Agreements,  except as
expressly provided therein; or

                 (v) take any  other  action  in  connection  with the  Assigned
Agreements that would impair the value of the interest or rights of such Pledgor
thereunder  or that would  impair the  interest or rights of the Nalco Agent and
the other Nalco Parties.

                                   ARTICLE V.
                                 THE NALCO AGENT

         SECTION  5.1.  NALCO AGENT  APPOINTED  ATTORNEY-IN-FACT.  Each  Pledgor
hereby  irrevocably  appoints the Nalco Agent such  Pledgor's  attorney-in-fact,
with full  authority  in the place and stead of such  Pledgor and in the name of
such Pledgor or otherwise, from time to time in the Nalco Agent's discretion, to
take any  action  and to  execute  any  instrument  which  the  Nalco  Agent may
reasonably  deem  necessary or  advisable  to perfect,  maintain and protect the
Nalco  Agent's  security  interests  in and Liens on and against the  Collateral
granted or purported to be granted hereby,  PROVIDED that if an Event of Default
has not occurred, the Nalco Agent has first reasonably requested such Pledgor to
take such action or to execute such  instrument and such Pledgor has been unable
or  unwilling to take such action or to execute  such  instrument,  and PROVIDED
FURTHER  that such Pledgor  shall have a reasonable  period of time to take such
action or execute such instrument  prior to the occurrence and continuance of an
Event of Default.  Each Pledgor hereby irrevocably appoints the Nalco Agent such
Pledgors  attorney-in-fact,  with full  authority in the place and stead of such
Pledgor and in the name of such Pledgor or  otherwise,  from time to time in the
Nalco Agent's  discretion  from and after the occurrence of an Event of Default,
to take


<PAGE>
                                                                              13





any  action  and to  execute  any  instrument  which  the  Nalco  Agent may deem
necessary or advisable to accomplish the purposes of this Pledge  Agreement in a
manner  consistent with the exercise of its rights and remedies pursuant to this
Pledge Agreement, including, without limitation:

            a) to ask, demand,  collect, sue for, recover,  compromise,  receive
and give  acquittance  and receipts for moneys due and to become due under or in
respect of any of the Collateral;

            b) to receive, endorse, and collect any drafts or other instruments,
documents and chaftel paper, in connection with clause (A) above; and

            c)  to  file  any  claims  or  take  any  action  or  institute  any
proceedings  which the Seller may deem necessary or desirable for the collection
of any of the  Collateral  or otherwise to enforce the rights of the Nalco Agent
with  respect  to any of  the  Collateral; 

Each Pledgor hereby acknowledges,  consents and agrees that, subject to the LAST
TWO  SENTENCES of SECTION 2.5, the powers of attorney  granted  pursuant to this
Section are irrevocable and coupled with an interest.

     SECTION 5.2.  NALCO AGENT MAY PERFORM.  If any Pledgor fails to perform any
agreement  contained  herein,  the Nalco  Agent  may  itself  perform,  or cause
performance of, such agreement,  and the expenses of the Nalco Agent incurred in
connection therewith shall be payable by the Pledgors pursuant to SECTION 6.5.

         SECTION 5.3. NALCO AGENT HAS NO DUTY. The powers conferred on the Nalco
Agent  hereunder  are solely to  protect  its  interest  (on behalf of the Nalco
Parties) in the  Collateral  and shall not impose any duty on it to exercise any
such powers.  Except for reasonable care of any Collateral in its possession and
the accounting  for moneys  actually  received by it hereunder,  the Nalco Agent
shall have no duty as to any Collateral or  responsibility  for  ascertaining or
taking action with respect to calls, conversions, exchanges, maturities, tenders
or other  matters  relative  to any Pledged  Property,  whether or not the Nalco
Agent  has or is  deemed  to have  knowledge  of such  matters,  or  taking  any
necessary  steps to preserve  rights  against  prior parties or any other rights
pertaining to any Collateral.

         SECTION 5.4.  REASONABLE  CARE. The Nalco Agent is required to exercise
reasonable care in the custody and  preservation of any of the Collateral in its
possession;  PROVIDED  that the Nalco  Agent  shall be deemed to have  exercised
reasonable care in the custody and preservation of any of the Collateral pledged
by any Pledgor pursuant hereto, if it takes such action for that purpose as such
Pledgor  reasonably  requests in writing at times other than upon the occurrence
and during the  continuance  of any Event of  Default,  but failure of the Nalco
Agent to comply with any such  request at any time shall not in itself be deemed
a failure to exercise reasonable care.


<PAGE>
                                                                              14





                                   ARTICLE VI.
                                    REMEDIES

         SECTION  6.1.  CERTAIN  REMEDIES.  If any Event of  Default  shall have
occurred and be continuing:

     a) The Nalco Agent may exercise in respect of the  Collateral,  in addition
to other rights and remedies  provided for herein or otherwise  available to it,
all the  rights and  remedies  of a secured  party on  default  under the U.C.C.
(whether or not the U.C.C.  applies to the  affected  Collateral)  and also may,
without notice except as specified  below,  sell or assign the Collateral or any
part  thereof in one or more  parcels at public or private  sale,  at any of the
Nalco Agent's offices or elsewhere,  for cash, on credit or for future delivery,
and upon such other terms as the Nalco Agent may deem  commercially  reasonable.
Each  Pledgor  agrees at least ten (10)  days'  prior  notice to the  applicable
Pledgor  of the time and place of any public  sale or the time  after  which any
private sale is to be made shall constitute reasonable  notification.  The Nalco
Agent shall not be obligated to make any sale of Collateral regardless of notice
of sale  having  been  given.  The Nalco Agent may adjourn any public or private
sale from time to time by announcement at the time and place fixed therefor, and
such sale may, without further notice, be made at the time and place to which it
was so adjourned.

            b) The Nalco Agent may

                 (i) transfer all or any part of the Collateral into the name of
the Nalco Agent or its nominee,  with or without disclosing that such Collateral
is subject to the lien and security interest hereunder,

                 (ii) notify the parties  obligated on any of the  Collateral to
make payment to the Nalco Agent of any amount due or to become due thereunder,

                 (iii) enforce  collection  of any of the  Collateral by suit or
otherwise,  and  surrender,  release or  exchange  all or any part  thereof,  or
compromise  or extend or renew for any period  (whether  or not longer  than the
original  period),  any  obligations  of any  nature of any party  with  respect
thereto,

                 (iv)  endorse  any  checks,  drafts  or other  writings  in any
Pledgors name to allow collection of the Collateral,


<PAGE>
                                                                              15





                 (v) take control of any proceeds of the Collateral, and

                 (vi)  execute  (in the name,  place  and stead of any  Pledgor)
endorsements,  assignments,  stock powers and other  instruments  of assignment,
conveyance or transfer with respect to all or any of the Collateral.

         SECTION 6.2.  SECURITIES  LAWS.  If the Nalco Agent shall  determine to
exercise  its right to sell or assign all or any of the  Collateral  pursuant to
SECTION 6.1,  each Pledgor  agrees that,  upon request of the Nalco Agent,  such
Pledgor  will,  at its own  expense,  do or cause  to be done all such  acts and
things  as may be  necessary  to make such  sale of the  Collateral  or any part
thereof  valid and binding and in compliance  with  applicable  law;  including,
without limitation, exercising any registration rights under any of the Assigned
Agreements.

         SECTION 6.3. COMPLIANCE WITH RESTRICTIONS.  Each Pledgor agrees that in
any sale or  assignment  of any of the  Collateral,  the  Nalco  Agent is hereby
authorized to comply with any limitation or restriction in connection  with such
sale or  assignment  as it may be advised by  counsel is  necessary  in order to
avoid any violation of applicable law (including compliance with such procedures
as may restrict the number of prospective  bidders and purchasers,  require that
such  prospective  bidders  and  purchasers  have  certain  qualifications,  and
restrict such  prospective  bidders and purchasers to persons who will represent
and agree that they are  purchasing for their own account for investment and not
with a view to the  distribution or resale of such  Collateral),  or in order to
obtain any required  approval of the sale or  assignment  or of the purchaser by
any  governmental  regulatory  authority or official,  and such Pledgor  further
agrees that such  compliance  shall not result in such sale or assignment  being
considered or deemed not to have been made in a commercially  reasonable manner,
nor shall the Nalco  Agent be liable  or  accountable  to such  Pledgor  for any
discount  allowed  by the  reason of the fact that  such  Collateral  is sold in
compliance with any such limitation or restriction.

         SECTION 6.4. APPLICATION OF PROCEEDS. All cash proceeds received by the
Nalco Agent in respect of any sale or assignment of,  collection  from, or other
realization  upon, all or any part of the  Collateral  may, in the discretion of
the Nalco Agent,  be held by the Nalco Agent as additional  collateral  security
for the Purchaser  Obligations,  or then or at any time thereafter be applied in
whole or in part by the Nalco Agent  against,  all or any part of the  Purchaser
Obligations.

         Any surplus of such cash or cash  proceeds  held by the Nalco Agent and
remaining after payment in full of all the Purchaser  Obligations  shall be paid
over to the  applicable  Pledgor or to  whomsoever  may be lawfully  entitled to
receive such surplus.

         SECTION 6.5.  INDEMNITY AND EXPENSES.  Each Pledgor hereby  indemnifies
and holds  harmless  the Nalco Agent and each other Nalco Party from and against
any and all claims,  losses and liabilities  arising out of or resulting  solely
from this Pledge Agreement 


<PAGE>
                                                                              16





(including,  without limitation,  enforcement of this Pledge Agreement),  except
claims,  losses or liabilities  resulting  solely from the Nalco Agent's or such
Nalco Party's negligence or willful  misconduct.  Upon demand, each Pledgor will
pay to the  Nalco  Agent  the  amount  of any and all  expenses,  including  the
reasonable fees and  disbursements of its counsel and of any experts and agents,
which the Nalco Agent may incur in connection with:

            a) the custody,  preservation,  use or operation  of, or the sale or
assignment  of,   collection  from,  or  other  realization  upon,  any  of  the
Collateral;

            b) the  exercise  or  enforcement  of any of the rights of the Nalco
Agent hereunder if the Nalco Agent or the Nalco Parties are the prevailing party
in any such proceeding; or

            c) the  failure by any  Pledgor  to  perform  or observe  any of the
provisions  hereof.  

     All of the  foregoing  fees,  costs  and  expenses  shall  be  part  of the
Purchaser Obligations and shall be secured by the Collateral.

         The  foregoing  indemnity  shall  survive  termination  of this  Pledge
Agreement.
                                                   
                                  ARTICLE VII.
                            MISCELLANEOUS PROVISIONS

     SECTION 7.1. REINSTATEMENT; AMENDMENTS, ETC. If any payment made in respect
of any Purchaser  Obligations  is rescinded or must otherwise be restored by any
Nalco Party and,  pursuant to SECTION 2.5, the security  interest granted herein
shall have terminated, this Pledge Agreement and such security interest shall be
reinstated and otherwise  restored all as though such payment had not been made.
No amendment to or waiver of any provision of this Pledge  Agreement nor consent
to any departure by any Pledgors herefrom shall in any event be effective unless
the same shall be in writing and signed by the Nalco Agent, and then such waiver
or consent shall be effective only in the specific instance and for the specific
purpose for which it is given.

         SECTION 7.2. PROTECTION OF COLLATERAL. The Nalco Agent may from time to
time,  at its  option,  perform any act which any Pledgor  agrees  hereunder  to
perform and which such Pledgor  shall fail to perform  after being  requested in
writing so to perform (it being  understood  that no such  request need be given
after the occurrence and during the  continuance of an Event of Default) and the
Nalco  Agent may from time to time take any other  action  which the Nalco Agent
reasonably  deems necessary for the  maintenance,  preservation or protection of
any of the Collateral or of its security interest therein.


<PAGE>
                                                                              17





         SECTION   7.3.   ADDRESSES   FOR   NOTICES.   All   notices  and  other
communications  provided for  hereunder  shall be in writing and shall be given,
and shall  become  effective,  in the manner  specified  in SECTION  12.5 of the
Purchase  Agreement,  addressed  or  delivered  to it at its  address  set forth
beneath its signature hereto.

         SECTION 7.4.  SECTION  CAPTIONS.  Section  captions used in this Pledge
Agreement  are for  convenience  of  reference  only,  and shall not  affect the
construction of this Pledge Agreement.
                  
         SECTION 7.5.  SEVERABILITY.  Wherever  possible each  provision of this
Pledge  Agreement  shall be  interpreted  in such manner as to be effective  and
valid under  applicable law, but if any provision of this Pledge Agreement shall
be prohibited by or invalid under such law, such provision  shall be ineffective
to the  extent of such  prohibition  or  invalidity,  without  invalidating  the
remainder  of  such  provision  or  the  remaining  provisions  of  this  Pledge
Agreement.

         SECTION 7.6. COUNTERPARTS. This Pledge Agreement may be executed in any
number of counterparts and by different parties hereto in separate counterparts,
each of which  when so  executed  shall be deemed to be an  original  and all of
which taken together shall constitute one and the same agreement.

         SECTION  7.7.  GOVERNING  LAW,  ENTIRE  AGREEMENT,   ETC.  THIS  PLEDGE
AGREEMENT  SHALL BE GOVERNED BY AND  CONSTRUED IN  ACCORDANCE  WITH THE INTERNAL
LAWS OF THE STATE OF DELAWARE, EXCEPT AS REQUIRED BY MANDATORY PROVISIONS OF LAW
AND  EXCEPT TO THE  EXTENT  THAT THE  VALIDITY  OR  PERFECTION  OF THE  SECURITY
INTEREST  HEREUNDER,  OR  REMEDIES  HEREUNDER,  IN  RESPECT  OF  ANY  PARTICULAR
COLLATERAL  ARE GOVERNED BY THE LAWS OF A  JURISDICTION  OTHER THAN THE STATE OF
ILLINOIS. THIS PLEDGE AGREEMENT AND THE PURCHASE AGREEMENT CONSTITUTE THE ENTIRE
UNDERSTANDING AMONG THE PARTIES HERETO WITH RESPECT TO THE SUBJECT MATTER HEREOF
AND SUPERSEDE ANY PRIOR AGREEMENTS, WRITTEN OR ORAL, WITH RESPECT THERETO.

         SECTION  7.8.  FORUM  SELECTION  AND  CONSENT  TO   JURISDICTION.   ANY
LITIGATION  BASED HEREON,  OR ARISING OUT OF, UNDER, OR IN CONNECTION WITH, THIS
PLEDGE  AGREEMENT,  OR ANY  COURSE OF  CONDUCT,  COURSE OF  DEALING,  STATEMENTS
(WHETHER  ORAL OR WRITTEN) OR ACTIONS OF THE NALCO  PARTIES OR ANY PLEDGOR SHALL
BE BROUGHT AND MAINTAINED  EXCLUSIVELY IN THE COURTS OF THE STATE OF ILLINOIS OR
IN THE UNITED  STATES  DISTRICT  COURT FOR THE  NORTHERN  DISTRICT OF  ILLINOIS;
PROVIDED,  HOWEVER,  THAT ANY SUIT SEEKING ENFORCEMENT AGAINST ANY COLLATERAL OR
OTHER PROPERTY MAY BE BROUGHT, AT THE NALCO AGENT'S OPTION, IN THE COURTS OF ANY
JURISDICTION  WHERE SUCH COLLATERAL OR OTHER PROPERTY MAY 


<PAGE>
                                                                              18





BE  FOUND.  EACH  PLEDGOR  HEREBY  EXPRESSLY  AND  IRREVOCABLY  SUBMITS  TO  THE
JURISDICTION  OF THE COURTS OF THE STATE OF  ILLINOIS  AND OF THE UNITED  STATES
DISTRICT COURT FOR THE NORTHERN DISTRICT OF ILLINOIS FOR THE PURPOSE OF ANY SUCH
LITIGATION AS SET FORTH ABOVE AND  IRREVOCABLY  AGREES TO BE BOUND BY ANY FINAL,
NON-APPEALABLE  JUDGMENT  RENDERED  THEREBY IN CONNECTION WITH SUCH  LITIGATION.
EACH  PLEDGOR  FURTHER  IRREVOCABLY  CONSENTS  TO  THE  SERVICE  OF  PROCESS  BY
REGISTERED MAIL,  POSTAGE PREPAID,  OR BY PERSONAL SERVICE WITHIN OR WITHOUT THE
STATE OF ILLINOIS.  EACH PLEDGOR HEREBY EXPRESSLY AND IRREVOCABLY WAIVES, TO THE
FULLEST  EXTENT  PERMITTED BY LAW, ANY OBJECTION  WHICH IT MAY HAVE OR HEREAFTER
MAY HAVE TO THE LAYING OF VENUE OF ANY SUCH LITIGATION BROUGHT IN ANY SUCH COURT
REFERRED TO ABOVE AND ANY CLAIM THAT ANY SUCH  LITIGATION HAS BEEN BROUGHT IN AN
INCONVENIENT FORUM.

         SECTION  7.9.  WAIVER OF JURY TRIAL.  EACH  PLEDGOR  HEREBY  KNOWINGLY,
VOLUNTARILY AND  INTENTIONALLY  WAIVES ANY RIGHTS IT MAY HAVE TO A TRIAL BY JURY
IN RESPECT OF ANY  LITIGATION  BASED  HEREON,  OR ARISING OUT OF,  UNDER,  OR IN
CONNECTION  WITH,  THIS PLEDGE  AGREEMENT,  OR ANY COURSE OF CONDUCT,  COURSE OF
DEALING, STATEMENTS (WHETHER ORAL OR WRITTEN) OR ACTIONS OF THE NALCO PARTIES OR
ANY PLEDGOR.  EACH PLEDGOR ACKNOWLEDGES AND AGREES THAT IT HAS RECEIVED FULL AND
SUFFICIENT  CONSIDERATION  FOR THIS  PROVISION  AND  THAT  THIS  PROVISION  IS A
MATERIAL INDUCEMENT FOR THE SELLER ENTERING INTO THE PURCHASE AGREEMENT.

         SECTION  7.10.  CONFLICTS  WITH  PURCHASE  AGREEMENT.   Notwithstanding
anything in this Pledge Agreement to the contrary, in the event of a conflict or
inconsistency  between this Pledge  Agreement  and the Purchase  Agreement,  the
provisions of this Pledge  Agreement shall govern to the extent of such conflict
or inconsistency.


<PAGE>
                                                                              19





         IN  WITNESS  WHEREOF,  the  parties  hereto  have  caused  this  Pledge
Agreement  to be duly  executed  and  delivered  by  their  respective  officers
thereunto duly authorized as of the day and year first above written.

                                  /s/ RALPH E. BAILEY
                                  --------------------------------------
                                  Name:          Ralph E. Bailey

                                  Address for Notices:

                                  --------------------------------------
                                  --------------------------------------
                                  --------------------------------------


                                  /s/ DOUGLAS G. BAILEY
                                  --------------------------------------
                                  Name:          Douglas G. Bailey

                                  Address for Notices:

                                  --------------------------------------
                                  --------------------------------------
                                  --------------------------------------


                                  /s/ NOLAN R. SCHWARTZ
                                  --------------------------------------
                                  Name:          Nolan R. Schwartz

                                  Address for Notices:

                                  --------------------------------------
                                  --------------------------------------
                                  --------------------------------------


                                  /s/ GUY C. HECKMAN
                                  --------------------------------------
                                  Name:          Guy C. Heckman

                                  Address for Notices:

                                  --------------------------------------
                                  --------------------------------------
                                  --------------------------------------


<PAGE>
                                                                              20





                                  /s/ J. WILLIAM DRAKE
                                  --------------------------------------
                                  Name:         J. William Drake

                                  Address for Notices:

                                  --------------------------------------
                                  --------------------------------------
                                  --------------------------------------


                                  /s/ ROBERT M. DAVENPORT
                                  --------------------------------------
                                  Name:         Robert M. Davenport

                                  Address for Notices:

                                  --------------------------------------
                                  --------------------------------------
                                  --------------------------------------


                                  /s/ BETSY S. KENYON
                                  --------------------------------------
                                  Name:         Betsy S. Kenyon

                                  Address for Notices:

                                  --------------------------------------
                                  --------------------------------------
                                  --------------------------------------


                                  /s/ LINDSAY G. MORTNER
                                  --------------------------------------
                                  Name:         Lindsay G. Mortner

                                  Address for Notices:

                                  --------------------------------------
                                  --------------------------------------
                                  --------------------------------------



<PAGE>
                                                                              21





                                  /s/ JAMES G. HANNOOSH
                                  --------------------------------------
                                  Name:         James G. Hannoosh

                                  Address for Notices:

                                  --------------------------------------
                                  --------------------------------------
                                  --------------------------------------


                                  /s/ GENEVE E. HENDRICKS
                                  --------------------------------------
                                  Name:         Geneve E. Hendricks

                                  Address for Notices:

                                  --------------------------------------
                                  --------------------------------------
                                  --------------------------------------


                                ACKNOWLEDGED AND AGREED TO as of the
                                date first above written

                                NALCO FT, INC., in its individual capacity and
                                as agent for the Nalco Parties

                                By:      /s/
                                      ----------------------------------------
                                Name:    
                                      ----------------------------------------
                                Title:   
                                      ----------------------------------------


<PAGE>
                                                                              22




                                                                  ATTACHMENT 1


ITEM A.         PLEDGED SHARES AND WARRANTS

PLEDGOR         PLEDGED SHARE ISSUER                        STOCK

                                                   Number       Number of Shares
                                                 of Pledged      Represented by
                                       CLASS        SHARES      PLEDGED WARRANTS

[individuals]   Fuel Tech, N.V.        Common     4,750,000        3,000,000

Item B.         ASSIGNED AGREEMENTS.
                [registration rights
                 agreement]







                                                    EXHIBIT 4(a) TO SCHEDULE 13D

                             SCHWARTZ CALL AGREEMENT

          CALL AGREEMENT (this "Agreement"), dated as of March 23, 1998, between
Ralph E. Bailey ("R. Bailey") and Douglas G. Bailey ("D. Bailey",  and, together
with R. Bailey,  the  "Baileys"),  on the one hand,  and Nolan R.  Schwartz (the
"Stockholder"), on the other hand.

          WHEREAS,  the  Baileys,  the  Stockholder  and  the  other  Purchasers
signatory thereto are parties to a certain Securities Purchase Agreement,  dated
as  of  the  date  of  this  Agreement  (the  "Securities  Purchase  Agreement";
capitalized  terms used herein but not defined  herein  shall have the  meanings
ascribed to such terms in the Securities Purchase Agreement),  pursuant to which
the Baileys,  the Stockholder and the other  Purchasers have agreed to purchase,
and Fuel-Tech N.V., a Netherlands  Antilles limited  liability  company ("FTNV")
has agreed to issue,  the  Purchaser  Stock and the  Purchaser  Warrants  in the
amounts  set forth on  Schedule  I to the  Securities  Purchase  Agreement  (the
Purchaser Stock and the Purchaser  Warrants being  collectively,  the "Purchaser
Shares");

          WHEREAS,  R. Bailey and Bettye J. Bailey ("B.  Bailey")  have  pledged
certain collateral totaling FF10,000,000,  as may be reduced by the COSA Release
Total  defined in 1(e)  below  (the  "Bailey  Pledged  Collateral")  in favor of
Caterpillar  Overseas  S.  A., a  societe  anonyme  organized  under  Swiss  law
("COSA"),  as security  for the payment by  DieselCast  France S. A. , a company
organized under the laws of France ("DieselCast"), of the purchase price for the
shares of Fonderie de Vernon S.A., a company  organized under the laws of France
("Vernon"), pursuant to the Pledge and Security Agreement dated December 9, 1994
between COSA, R. Bailey and B. Bailey (the "Pledge and Security Agreement");

          WHEREAS,  R.  Bailey  and B.  Bailey are  beneficiaries  of pledges of
certain assets from certain  stockholders of DieselCast pursuant to the terms of
a Stockholders  Agreement  dated June 5, 1995 by and among R. Bailey,  B. Bailey
and the other  stockholders  signatory  thereto  (the  "DieselCast  Stockholders
Agreement")  and certain  Deferred  Compensation  Agreements  and Deferred Bonus
Agreements  each dated  October 31, 1994  between  American  Bailey  Corporation
("ABC")  and  the  employees  of  ABC  signatory   thereto  (the  "Other  Pledge
Collateral");

          WHEREAS,  the Other Pledge  Collateral  shall be conveyed to R. Bailey
and B.  Bailey  only in the  event and to the  extent  that the  Bailey  Pledged
Collateral is taken by COSA;

          WHEREAS,  the parties desire that either of the Baileys have an option
to  purchase  from the  Stockholder  a portion  of the  Stockholder's  Purchaser
Warrants  (or shares of FTNV Stock  acquired as a result of the  exercise of the
Purchaser Warrants if sufficient


<PAGE>
                                                                               2



Purchaser  Warrants  do not  exist) in the event of the taking by COSA of all or
part of the collateral pledged by R. Bailey and B. Bailey pursuant to the Pledge
and  Security   Agreement;   

     WHEREAS, it is a condition precedent to the Stockholder's  participating in
the transactions  contemplated by the Securities  Purchase  Agreement,  that the
Stockholder enter into this Agreement;

          NOW,  THEREFORE,  in consideration  of the foregoing  premises and the
mutual covenants herein contained and intending to be legally bound hereby,  the
parties agree as follows:

          SECTION 1. The Vernon Right to Call Purchaser Warrants

          (a)  Upon  any  taking  by COSA  of any  part  of the  Bailey  Pledged
Collateral  in  excess  of  the  Other  Pledged  Collateral  (the  "Unreimbursed
Amount"), the Stockholder agrees that either of the Baileys shall have the right
to require  the  Stockholder  to sell a portion of the  Stockholder's  Purchaser
Warrants  (or  shares of FTNV  Stock  acquired  as a result of  exercise  of the
Purchaser  Warrants if sufficient  Purchaser Warrants do not exist) to either of
the Baileys (the "Vernon Call Right").

          (b) The number of Purchaser Warrants of the Stockholder subject to the
Vernon Call Right shall be a whole  number  calculated  by  multiplying  (i) the
total  Vernon  Restricted  Warrants  (as defined  below) by (ii) the Vernon Call
Percentage  (defined  below)  (fractional  shares  shall be rounded  down to the
nearest  whole  share).  If the  Stockholder  does not hold  Purchaser  Warrants
sufficient  to satisfy the Vernon Call Right,  then either of the Baileys  shall
also have the right to require the  Stockholder to sell to either of the Baileys
that  number of shares of FTNV Stock  which  equals the number of shares of FTNV
Stock into which the shortfall of Purchaser  Warrants  converted (the "Shortfall
FTNV Stock").

          "Vernon  Restricted  Warrants" shall mean 100,000 of the Stockholder's
Purchaser  Warrants,  as  may  be  reduced  by (i)  Purchaser  Warrants  already
relinquished  to the  Baileys  pursuant  to the prior  exercise of a Vernon Call
Right,  if any, and (ii) the "Vernon  Warrant  Reduction  Amount" (as defined in
1(e) below).

          "Vernon Call Percentage"  shall mean a fraction,  (i) the numerator of
which  is  the  Unreimbursed  Amount  and  (ii)  the  denominator  of  which  is
FF10,000,000,  less (A) the portion of the Bailey Pledged Collateral  previously
taken by COSA,  if any,  and (B) the "COSA  Release  Amount" (as defined in 1(e)
below), if any.

          (c) The  Baileys  shall  exercise  the  Vernon  Call  Right by sending
written notice to the  Stockholder.  Upon the exercise of the Vernon Call Right,
the closing of the

<PAGE>
                                                                               3



transaction shall occur not later than thirty (30) days following the receipt of
notice by the Stockholder.

          (d) The option price for each of the Vernon Restricted  Warrants shall
be the price paid for the Purchaser Warrants pursuant to the Securities Purchase
Agreement  (the "Warrant  Purchase  Price").  The option price for each share of
Shortfall  FTNV Stock,  if any,  shall be the price paid for the Shortfall  FTNV
Stock, as well as the price paid for the underlying Purchaser Warrants.

          (e) Each time that a  portion  of the  Bailey  Pledged  Collateral  is
released by COSA to the Baileys (each such released amount being a "COSA Release
Amount"  and the total of all COSA  Release  Amounts  being  the  "COSA  Release
Total"),  then a pro rata  portion of the Vernon  Restricted  Warrants  shall be
released to the Stockholder (the "Vernon Warrant Reduction Amount").  The Vernon
Warrant  Reduction  Amount  shall be the  product of (i) the  Vernon  Restricted
Warrants,  multiplied  by (ii) a fraction,  the  numerator of which shall be the
COSA Release  Amount and the  denominator  of which shall be the Bailey  Pledged
Collateral  as may be reduced by the  portion of the Bailey  Pledged  Collateral
previously taken by COSA, if any.

          (f)  Notwithstanding the provisions of Sections 1(a) through 1(e), the
total value of the Vernon  Restricted  Warrants and Shortfall FTNV Stock subject
to the Vernon  Call Right  shall not  exceed the Vernon  Call Value (as  defined
below).  The Vernon Call Value shall be based upon (i) the closing  price of the
common  stock of FTNV  subject to the  Purchaser  Warrants and (ii) the currency
exchange rate between U.S. dollars and French francs, each as listed in the Wall
Street Journal as of the business day  immediately  preceding the  Stockholder's
receipt of written notice as provided in Section 1(c).

          "Vernon  Call  Value"  shall  mean  FF787,179,  less the amount of the
Stockholder's  Current Pledged Collateral set forth on Exhibit A hereto (as such
Exhibit A may be amended from time to time).

          (g)  Notwithstanding  the provisions of Sections 1(a) through 1(f), if
the Vernon Call Right is exercised,  and/or if the option under Section 6 of the
DieselCast  Stockholders  Agreement is exercised,  then any proceeds  ultimately
received by the  Baileys  from their  exercise or sale of the Vernon  Restricted
Warrants,  sale of the  Shortfall  FTNV  Stock  or sale of the  common  stock of
DieselCast,  which exceed the Vernon Call Value,  shall be promptly  returned by
the Baileys to the Stockholder.

          SECTION 2. Binding Effect;  Assignment.  This Agreement shall inure to
the  benefit  of,  and shall be  binding  upon,  the  parties  hereto  and their
respective successors, assigns, heirs, and legal representatives. This Agreement
may not be assigned by any party

<PAGE>
                                                                               4



hereto without the written consent of the other parties which such consent shall
be at the sole discretion of each party.

          SECTION  3.  Governing  Law;  Jurisdiction.  This  Agreement  shall be
governed  by  and  construed  in  accordance  with  the  laws  of the  State  of
Connecticut.  For purposes of any action or proceeding involving this Agreement,
the Baileys and the Stockholder  hereby  expressly submit to the jurisdiction of
all Federal and state  courts  sitting in the state of  Connecticut  and consent
that any order,  process,  notice or motion or other application to or by any of
said courts or a judge  thereof  may be served  within or without  such  court's
jurisdiction  by  registered  mail  or by  personal  service,  provided  that  a
reasonable  time for  appearance  is allowed.  The  Baileys and the  Stockholder
hereby  irrevocably  waive any objection that they may now or hereafter may have
to the  laying of venue of any  suit,  action or  proceeding  arising  out of or
relating to this  Agreement  brought in any  Federal or state  court  sitting in
Connecticut and hereby further  irrevocably  waive any claim that any such suit,
action or  proceeding  in any such  court has been  brought  in an  inconvenient
forum.

          SECTION 4. Execution of  Counterparts.  This Agreement may be executed
in one or more  counterparts,  each of which  shall be  considered  an  original
instrument, but all of which shall be considered one and the same agreement.

          SECTION 5. Waiver; Modification. No provision of this Agreement may be
modified, waived or discharged unless such waiver,  modification or discharge is
agreed to in writing and signed by the parties hereto. No waiver by either party
hereto at any time of any breach by the other  party  hereto  of, or  compliance
with, any condition or provision of this Agreement to be performed by such other
party shall be deemed a waiver of similar or dissimilar provisions or conditions
at the same or at any prior or subsequent time.






            [The remainder of this page is intentionally left blank.
                          The signature page follows.]


<PAGE>
                                                                               5



          IN WITNESS WHEREOF,  this Agreement has been executed and delivered as
of the date first set forth above.


                                            THE BAILEYS

                                            /s/ RALPH E. BAILEY
                                            --------------------------------
                                            Ralph E. Bailey

                                            /s/ DOUGLAS G. BAILEY
                                            -------------------------------
                                            Douglas G. Bailey



                                            THE STOCKHOLDER

                                            /s/ NOLAN R. SCHWARTZ
                                            --------------------------------
                                            Nolan R. Schwartz



<PAGE>
                                                                    


                                    EXHIBIT A

                           CURRENT PLEDGED COLLATERAL
                           --------------------------
                                       of
                                       --
                                   STOCKHOLDER
                                   -----------



FF311,540
$ 50,505*









- ------------
*  Assumes a current exchange rate of $1.00 = FF6.1685 as of April 6, 1998







                                                    EXHIBIT 4(b) TO SCHEDULE 13D

                             HECKMAN CALL AGREEMENT

          CALL AGREEMENT (this "Agreement"), dated as of March 23, 1998, between
Ralph E. Bailey ("R. Bailey") and Douglas G. Bailey ("D. Bailey",  and, together
with R.  Bailey,  the  "Baileys"),  on the one  hand,  and Guy C.  Heckman  (the
"Stockholder"), on the other hand.

          WHEREAS,  the  Baileys,  the  Stockholder  and  the  other  Purchasers
signatory thereto are parties to a certain Securities Purchase Agreement,  dated
as  of  the  date  of  this  Agreement  (the  "Securities  Purchase  Agreement";
capitalized  terms used herein but not defined  herein  shall have the  meanings
ascribed to such terms in the Securities Purchase Agreement),  pursuant to which
the Baileys,  the Stockholder and the other  Purchasers have agreed to purchase,
and Fuel-Tech N.V., a Netherlands  Antilles limited  liability  company ("FTNV")
has agreed to issue,  the  Purchaser  Stock and the  Purchaser  Warrants  in the
amounts  set forth on  Schedule  I to the  Securities  Purchase  Agreement  (the
Purchaser Stock and the Purchaser  Warrants being  collectively,  the "Purchaser
Shares");

          WHEREAS,  R. Bailey and Bettye J. Bailey ("B.  Bailey")  have  pledged
certain collateral totaling FF10,000,000,  as may be reduced by the COSA Release
Total  defined in 1(e)  below  (the  "Bailey  Pledged  Collateral")  in favor of
Caterpillar  Overseas  S.  A., a  societe  anonyme  organized  under  Swiss  law
("COSA"),  as security  for the payment by  DieselCast  France S. A. , a company
organized under the laws of France ("DieselCast"), of the purchase price for the
shares of Fonderie de Vernon S.A., a company  organized under the laws of France
("Vernon"), pursuant to the Pledge and Security Agreement dated December 9, 1994
between COSA, R. Bailey and B. Bailey (the "Pledge and Security Agreement");

          WHEREAS,  R.  Bailey  and B.  Bailey are  beneficiaries  of pledges of
certain assets from certain  stockholders of DieselCast pursuant to the terms of
a Stockholders  Agreement  dated June 5, 1995 by and among R. Bailey,  B. Bailey
and the other  stockholders  signatory  thereto  (the  "DieselCast  Stockholders
Agreement")  and certain  Deferred  Compensation  Agreements  and Deferred Bonus
Agreements  each dated  October 31, 1994  between  American  Bailey  Corporation
("ABC")  and  the  employees  of  ABC  signatory   thereto  (the  "Other  Pledge
Collateral");

          WHEREAS,  the Other Pledge  Collateral  shall be conveyed to R. Bailey
and B.  Bailey  only in the  event and to the  extent  that the  Bailey  Pledged
Collateral is taken by COSA;

          WHEREAS,  the parties desire that either of the Baileys have an option
to  purchase  from the  Stockholder  a portion  of the  Stockholder's  Purchaser
Warrants  (or shares of FTNV Stock  acquired as a result of the  exercise of the
Purchaser Warrants if sufficient

<PAGE>
                                                                               2



Purchaser  Warrants  do not  exist) in the event of the taking by COSA of all or
part of the collateral pledged by R. Bailey and B. Bailey pursuant to the Pledge
and Security Agreement;

          WHEREAS,  the Baileys  wish to have an  additional  option to purchase
from the Stockholder a portion of the  Stockholder's  Purchaser  Warrants in the
event that the Stockholder fails to achieve certain performance objectives;

          WHEREAS,   it  is  a   condition   precedent   to  the   Stockholder's
participating  in  the  transactions  contemplated  by the  Securities  Purchase
Agreement, that the Stockholder enter into this Agreement;

          NOW,  THEREFORE,  in consideration  of the foregoing  premises and the
mutual covenants herein contained and intending to be legally bound hereby,  the
parties agree as follows:

          SECTION 1. The Vernon Right to Call Purchaser Warrants

          (a)  Upon  any  taking  by COSA  of any  part  of the  Bailey  Pledged
Collateral  in  excess  of  the  Other  Pledged  Collateral  (the  "Unreimbursed
Amount"), the Stockholder agrees that either of the Baileys shall have the right
to require  the  Stockholder  to sell a portion of the  Stockholder's  Purchaser
Warrants  (or  shares of FTNV  Stock  acquired  as a result of  exercise  of the
Purchaser  Warrants if sufficient  Purchaser Warrants do not exist) to either of
the Baileys (the "Vernon Call Right").

          (b) The number of Purchaser Warrants of the Stockholder subject to the
Vernon  Call Right  shall be  calculated  by  multiplying  (i) the total  Vernon
Restricted  Warrants  (as  defined  below) by (ii) the  Vernon  Call  Percentage
(defined  below)  (fractional  shares shall be rounded down to the nearest whole
share).  If the  Stockholder  does not hold  Purchaser  Warrants  sufficient  to
satisfy the Vernon Call  Right,  then either of the Baileys  shall also have the
right to require the Stockholder to sell to either of the Baileys that number of
shares of FTNV Stock which  equals the number of shares of FTNV Stock into which
the shortfall of Purchaser Warrants converted (the "Shortfall FTNV Stock").

          "Vernon  Restricted  Warrants" shall mean 100,000 of the Stockholder's
Purchaser  Warrants,  as  may  be  reduced  by (i)  Purchaser  Warrants  already
relinquished  to the  Baileys  pursuant  to the prior  exercise of a Vernon Call
Right,  if any, and (ii) the "Vernon  Warrant  Reduction  Amount" (as defined in
1(e) below).

          "Vernon Call Percentage"  shall mean a fraction,  (i) the numerator of
which  is  the  Unreimbursed  Amount  and  (ii)  the  denominator  of  which  is
FF10,000,000, less (A)

<PAGE>
                                                                               3



the portion of the Bailey Pledged  Collateral  previously taken by COSA, if any,
and (B) the "COSA Release Amount" (as defined in 1(e) below), if any.

          (c) The  Baileys  shall  exercise  the  Vernon  Call  Right by sending
written notice to the  Stockholder.  Upon the exercise of the Vernon Call Right,
the  closing of the  transaction  shall  occur not later than  thirty  (30) days
following the receipt of notice by the Stockholder.

          (d) The option price for each of the Vernon Restricted  Warrants shall
be the price paid for the Purchaser Warrants pursuant to the Securities Purchase
Agreement  (the "Warrant  Purchase  Price").  The option price for each share of
Shortfall  FTNV Stock,  if any,  shall be the price paid for the Shortfall  FTNV
Stock, as well as the price paid for the underlying Purchaser Warrants.

          (e) Each time that a  portion  of the  Bailey  Pledged  Collateral  is
released by COSA to the Baileys (each such released amount being a "COSA Release
Amount"  and the total of all COSA  Release  Amounts  being  the  "COSA  Release
Total"),  then a pro rata  portion of the Vernon  Restricted  Warrants  shall be
released to the Stockholder (the "Vernon Warrant Reduction Amount").  The Vernon
Warrant  Reduction  Amount  shall be the  product of (i) the  Vernon  Restricted
Warrants,  multiplied  by (ii) a fraction,  the  numerator of which shall be the
COSA Release  Amount and the  denominator  of which shall be the Bailey  Pledged
Collateral  as may be reduced by the  portion of the Bailey  Pledged  Collateral
previously taken by COSA, if any.

          (f)  Notwithstanding the provisions of Sections 1(a) through 1(e), the
total value of the Vernon  Restricted  Warrants and Shortfall FTNV Stock subject
to the Vernon  Call Right  shall not  exceed the Vernon  Call Value (as  defined
below).  The Vernon Call Value shall be based upon (i) the closing  price of the
common  stock of FTNV  subject to the  Purchaser  Warrants and (ii) the currency
exchange rate between U.S. dollars and French francs, each as listed in the Wall
Street Journal as of the business day  immediately  preceding the  Stockholder's
receipt of written notice as provided in Section 1(c).

          "Vernon  Call  Value"  shall  mean  FF787,179,  less the amount of the
Stockholder's  Current Pledged Collateral set forth on Exhibit A hereto (as such
Exhibit A may be amended from time to time).

          (g)  Notwithstanding  the provisions of Sections 1(a) through 1(f), if
the Vernon Call Right is exercised,  and/or if the option under Section 6 of the
DieselCast  Stockholders  Agreement is exercised,  then any proceeds  ultimately
received by the  Baileys  from their  exercise or sale of the Vernon  Restricted
Warrants,  sale of the  Shortfall  FTNV  Stock  or sale of the  common  stock of
DieselCast,  which exceed the Vernon Call Value,  shall be promptly  returned by
the Baileys to the Stockholder.


<PAGE>
                                                                               4



          SECTION 2. Binding Effect;  Assignment.  This Agreement shall inure to
the  benefit  of,  and shall be  binding  upon,  the  parties  hereto  and their
respective successors, assigns, heirs, and legal representatives. This Agreement
may not be assigned by any party hereto without the written consent of the other
parties which such consent shall be at the sole discretion of each party.

          SECTION 3. The Performance Call Right.

          (a) In the event that the Stockholder  fails to carry out satisfactory
efforts  to  originate  and  provide  a  financing  plan  for at  least  one (1)
acquisition by American Bailey Corporation,  a Delaware  corporation,  or any of
its affiliates  (collectively,  "ABC") approved by the board of directors of ABC
within eighteen (18) months of the Closing of the Securities  Purchase Agreement
(the "Financing Objective"),  then either of the Baileys shall have the right to
require that the Stockholder sell fifty thousand (50,000) Purchaser Warrants (or
shares of FTNV  Stock  acquired  as a result of the  exercise  of the  Purchaser
Warrants  if  sufficient  Purchaser  Warrants  do not exist)  (the  "Performance
Warrants")  to either of the Baileys  (the  "Performance  Call  Right").  If the
Stockholder  does  not  hold  Purchaser  Warrants   sufficient  to  satisfy  the
Performance Call Right,  then either of the Baileys shall also have the right to
require the  Stockholder  to sell to either of the Baileys that number of shares
of FTNV  Stock  which  equals  the number of shares of FTNV Stock into which the
shortfall of the  Purchaser  Warrants  converted  (the "Other  Shortfall of FTNV
Stock").

          (b) The  determination  of whether the  Stockholder  has satisfied the
Financing Objective shall be made by the board of directors of ABC in their sole
discretion.  The board of  directors  of ABC  shall  exercise  their  discretion
reasonably.

          (c) The Baileys shall exercise the  Performance  Call Right by sending
written notice to the  Stockholder.  Upon the exercise of the  Performance  Call
Right,  the  closing of the  transaction  shall occur not later than thirty (30)
days following the receipt of notice by the Stockholder.

          (d) The option price for the Performance Warrants shall be the Warrant
Purchase  Price.  The option price for each share of the Other Shortfall of FTNV
Stock, if any, shall be the price paid for the Other Shortfall of FTNV Stock, as
well as the price paid for the underlying Purchaser Warrants.

          SECTION 4. Binding Effect;  Assignment.  This Agreement shall inure to
the  benefit  of,  and shall be  binding  upon,  the  parties  hereto  and their
respective successors, assigns, heirs, and legal representatives. This Agreement
may not be assigned by any party

<PAGE>
                                                                               5



hereto without the written consent of the other parties which such consent shall
be at the sole discretion of each party.

          SECTION  5.  Governing  Law;  Jurisdiction.  This  Agreement  shall be
governed  by  and  construed  in  accordance  with  the  laws  of the  State  of
Connecticut.  For purposes of any action or proceeding involving this Agreement,
the Baileys and the Stockholder  hereby  expressly submit to the jurisdiction of
all Federal and state  courts  sitting in the state of  Connecticut  and consent
that any order,  process,  notice or motion or other application to or by any of
said courts or a judge  thereof  may be served  within or without  such  court's
jurisdiction  by  registered  mail  or by  personal  service,  provided  that  a
reasonable  time for  appearance  is allowed.  The  Baileys and the  Stockholder
hereby  irrevocably  waive any objection that they may now or hereafter may have
to the  laying of venue of any  suit,  action or  proceeding  arising  out of or
relating to this  Agreement  brought in any  Federal or state  court  sitting in
Connecticut and hereby further  irrevocably  waive any claim that any such suit,
action or  proceeding  in any such  court has been  brought  in an  inconvenient
forum.

          SECTION 6. Execution of  Counterparts.  This Agreement may be executed
in one or more  counterparts,  each of which  shall be  considered  an  original
instrument, but all of which shall be considered one and the same agreement.

          SECTION 7. Waiver; Modification. No provision of this Agreement may be
modified, waived or discharged unless such waiver,  modification or discharge is
agreed to in writing and signed by the parties hereto. No waiver by either party
hereto at any time of any breach by the other  party  hereto  of, or  compliance
with, any condition or provision of this Agreement to be performed by such other
party shall be deemed a waiver of similar or dissimilar provisions or conditions
at the same or at any prior or subsequent time.


            [The remainder of this page is intentionally left blank.
                          The signature page follows.]


<PAGE>
                                                                               6



          IN WITNESS WHEREOF,  this Agreement has been executed and delivered as
of the date first set forth above.


                                            THE BAILEYS

                                            /s/ RALPH E. BAILEY
                                            --------------------------------
                                            Ralph E. Bailey

                                            /s/ DOUGLAS G. BAILEY
                                            -------------------------------
                                            Douglas G. Bailey



                                            THE STOCKHOLDER

                                            /s/ GUY C. HECKMAN
                                            --------------------------------
                                            Guy C. Heckman



<PAGE>


                                    EXHIBIT A

                           CURRENT PLEDGED COLLATERAL
                           --------------------------
                                       of
                                       --
                                   STOCKHOLDER
                                   -----------



FF186,690
$ 30,265*










- ------------
*  Assumes a current exchange rate of $1.00 = FF6.1685 as of April 6, 1998







                                                       EXHIBIT 5 TO SCHEDULE 13D






                          REGISTRATION RIGHTS AGREEMENT

                                     BETWEEN

                                 FUEL-TECH N.V.

                                       AND

                                 THE PURCHASERS




<PAGE>



                          Registration Rights Agreement



          THIS  REGISTRATION  RIGHTS AGREEMENT (this  "Agreement") is made as of
this 30th day of April, 1998 by and among FUEL-TECH N.V., a Netherlands Antilles
limited liability company (the "Company"),  and the undersigned  stockholders of
the Company (the "Stockholders").

          WHEREAS,  the Company and the Stockholders are parties to that certain
Securities  Purchase  Agreement,  dated as of March 23,  1998  (the  "Securities
Purchase Agreement");

          WHEREAS,  pursuant to the Securities Purchase  Agreement,  the Company
has issued certain shares of Common Stock and Warrants to the Stockholders;

          WHEREAS, on the date of this Agreement such shares of Common Stock and
Warrants are subject to, and the  exercise of such  Warrants and the transfer of
such shares of Common Stock as well as the shares  issuable upon the exercise of
such Warrants are restricted by, the terms of the Stockholders Agreement and the
Pledge Agreement;

          WHEREAS,  the execution and delivery of this  Agreement is a condition
precedent  to the  closing  of the  transactions  set  forth  in the  Securities
Purchase Agreement; and

          WHEREAS,  certain capitalized terms used herein are used as defined in
Article 12.

          NOW,  THEREFORE,  in  consideration  of the  mutual  covenants  herein
contained, and intending to be legally bound hereby, the parties hereto agree as
follows:

          1.   Demand Registration

               1.1.  Requests for  Registration.  At any time during the term of
this Agreement, any Stockholder may demand registration under the Securities Act
(a  "Demand  Registration")  on Form  F-1,  Form  S-1 or Form  S-3 or any  other
registration  statement that may be or become  available for registration of the
Company's securities (each, a "Registration Statement") of all or any portion of
the Registrable  Securities  owned by such  Stockholder.  In order to accomplish
such  demand,  a  Stockholder  shall  send  written  notice of the demand to the
Company,  and such notice  shall  specify the number of  Registrable  Securities
sought to be registered.  Subject to the terms of the Stockholders Agreement and
the Pledge  Agreement,  the Company shall  proceed with any Demand  Registration
requested by a  Stockholder  during the term of this  Agreement if the number of
Registrable  Securities which the Stockholders  shall have elected to include in
such  Demand  Registration  pursuant  to this  Section 1.1 and Section 1.3 shall
result in an

<PAGE>
                                                                               2



anticipated  aggregate offering price of at least U.S.  $1,000,000.00.  The form
for  registration  shall be selected by the Company,  provided that such form is
available for the registration of all of the Registrable  Securities so demanded
pursuant to this Section 1.

               1.2.  Maximum Number of Demand  Registrations.  In no event shall
the total number of Demand Registrations exceed three (3), and in no event shall
there be more than one (1) Demand Registration in any twelve (12) month period.

               1.3. Procedure. Within 10 days after receipt of a demand pursuant
to Section 1.1 hereof,  the Company shall give written  notice of such requested
registration to all other  Stockholders  and will include in such  registration,
subject to the  allocation  provisions  below and the terms of the  Stockholders
Agreement  and the  Pledge  Agreement,  all other  Registrable  Securities  with
respect to which the Company has received  written requests for inclusion within
20 days after the Company's  mailing of such notice,  plus any securities of the
Company that the Company chooses to include on its own behalf.

               1.4. Expenses.  The Company will pay the Registration Expenses of
any  Demand  Registration,  but the  Underwriting  Commissions,  if such  Demand
Registration  is  underwritten,  will  be paid by the  Selling  Stockholders  in
proportion  to any  Registrable  Securities  to be  included  on  their  behalf.
Notwithstanding the foregoing, if such Demand Registration is delayed, postponed
or  abandoned  due to acts of, or failures to act by, the Selling  Stockholders,
the Selling  Stockholders  shall  reimburse  the  Company for such  Registration
Expenses that are caused by such delay,  postponement or  abandonment;  provided
that such  delay,  postponement  or  abandonment  is not  related  to a material
adverse change in the business or operations of the Company and its subsidiaries
and  investees,  taken as a whole,  after  such  request  for  registration.  In
addition,  if such Demand  Registration is abandoned due to acts of, or failures
to act by, the Selling Stockholders and the Selling Stockholders are responsible
for reimbursing the Company for certain Registration Expenses,  then the Selling
Stockholders shall, at the option of the Selling Stockholders, (i) reimburse the
Company  for such  Registration  expenses  caused by such  abandonment,  or (ii)
eliminate one (1) of the  available  Demand  Registrations  under Section 1.2 of
this Agreement and therefore not be responsible to reimburse the Company for any
Registration Expenses caused by such abandonment.

               1.5. Priority on Demand  Registrations.  If a Demand Registration
is underwritten and the managing underwriters advise the Company in writing that
in their opinion the number of Registrable  Securities  requested to be included
exceeds  the number  that can be sold in such  offering,  at a price  reasonably
related to the fair value, the Company will allocate the Registrable  Securities
to be included in such Demand  Registration  pro rata on the basis of the number
of Registrable  Securities owned by the Selling  Stockholders.  No securities of
the Company that the Company chooses to include shall be included as part of the
Demand  Registration  unless all of the Registrable  Securities  requested to be
included by the Selling Stockholders are included in the Demand Registration.


<PAGE>
                                                                               3



               1.6.  Selection of Underwriters.  Any Demand  Registration may be
underwritten, at the election of the Selling Stockholders,  and the selection of
investment  banker(s)  and  manager(s)  and the other  decisions  regarding  the
underwriting  arrangements  for any such  offering  will be made by the Company;
provided,  however,  that the selection of investment  banker(s) and  manager(s)
shall be subject to the consent of the Selling  Stockholders selling Registrable
Securities  representing a majority of the Registrable  Securities to be sold by
the Selling  Stockholders  in such Demand  Registration,  such consent not to be
unreasonably withheld.

               1.7. Postponement.  The Company shall be entitled to postpone for
a reasonable period of time (but not exceeding ninety (90) days and no more than
once in any twelve (12) month period) the filing of any  registration  statement
otherwise required to be prepared and filed by it pursuant to Section 1.1 if (i)
the Board of Directors of the Company  determines,  in its reasonable  judgment,
that  such  registration  and  offering  would  interfere  with  any  financing,
acquisition,  corporate  reorganization or other material transaction  involving
the  Company or any of its  affiliates  or would  require  premature  disclosure
thereof or (ii) the Company  desires to postpone  the filing in order to be able
to include in such filing audited year-end financial  statements prepared in the
ordinary  course of preparing  its Annual Report to  Shareholders  (including on
Form  20-F or such  other  applicable  form),  and in each case  promptly  gives
written notice of such delay to the holders of Registrable Securities requesting
registration  thereof  pursuant to Section 1.1. If the Company shall so postpone
the filing of a registration  statement,  such holders of Registrable Securities
requesting registration thereof shall have the right to withdraw the request for
registration  by giving  written  notice to the Company  within thirty (30) days
after  receipt  of the  notice  of  postponement  and,  in  the  event  of  such
withdrawal,  such request  shall not be counted for purposes of the requests for
registration to which holder of the Registrable Securities are entitled pursuant
to  Sections  1.1 and 1.2 hereof,  and such  holders of  Registrable  Securities
requesting  registration  thereof  shall not be  responsible  to  reimburse  the
Company for any Registration Expenses.

          2.   Piggyback Registrations

               2.1.  Right to  Piggyback.  At any time  during  the term of this
Agreement,  whenever the Company  proposes to register  under the Securities Act
the offer, sale or offer and sale of any of its securities for its own behalf or
on behalf of  shareholders  other  than the  Stockholders  (other  than a Demand
Registration  or a  registration  of securities  in connection  with an employee
benefit plan or dividend  reinvestment plan or a merger or  consolidation),  and
the registration form to be used may be used for the registration of Registrable
Securities  to be sold in the manner  proposed  by the Selling  Stockholders  (a
"Piggyback  Registration"),  the Company will give prompt  written notice to all
Stockholders  and will include in such  Piggyback  Registration,  subject to the
allocation provisions below and the terms of the Stockholders  Agreement and the
Pledge Agreement,  all Registrable  Securities with respect to which the Company
has received  written  requests for inclusion within 20 days after the Company's
mailing of such notice.

<PAGE>
                                                                               4



The Company shall not select a Restricted Form that would preclude  registration
of the Registrable  Securities that the Company has been requested to include in
such   registration  if  the  Company  could  use  another   available  form  of
registration statement which is not a Restricted Form and the use of which would
not give rise to added Registration Expenses.

               2.2.  Piggyback  Expenses.  In all Piggyback  Registrations,  the
Company will pay the Registration Expenses related to the Registrable Securities
of the Selling  Stockholders,  but the Underwriting  Commissions will be paid by
the Selling Stockholders in proportion to any Registrable Securities included on
their behalf.

               2.3.  Priority  on  Piggyback   Registrations.   If  a  Piggyback
Registration is an underwritten  registration on behalf of the Company,  and the
managing  underwriters  advise the Company in writing that in their  opinion the
number of securities  requested to be included in such registration  exceeds the
number that can be sold in such offering,  at a price reasonably related to fair
value,  the Company  will  allocate  the  securities  to be included as follows:
first,  the  securities  the  Company  proposes  to sell on its own behalf or on
behalf of stockholders other than the Selling Stockholders;  and second, subject
to the terms of the Stockholders Agreement and the Pledge Agreement, Registrable
Securities requested to be included in such registration,  pro rata on the basis
of the number of Registrable Securities owned, among the Selling Stockholders.

               2.4. Selection of Underwriters. Any Piggyback Registration may be
underwritten, at the election of the Company, and the selection of the banker(s)
and manager(s) and the other decisions  regarding the underwriting  arrangements
of any such offering will be made in the sole discretion of the Company.

               2.5. Delay, Withdrawal or Abandonment.  Nothing contained in this
Article 2 shall be construed as limiting or otherwise interfering with the right
of the  Company  to  delay,  withdraw  or  abandon  in its sole  discretion  any
registration  statement filed by it in connection with a Piggyback  Registration
notwithstanding the inclusion therein of Registrable Securities.

          3.   Limitations on Registrations of Registrable Securities.

               The Company shall not be required to effect any  registration  of
Registrable Securities pursuant to Section 1.1 or 2.1 hereof if it shall deliver
to the Selling Stockholder or Selling Stockholders  requesting such registration
an opinion of counsel  (which opinion shall be reasonably  satisfactory  to such
Selling Stockholder or Selling  Stockholders) to the effect that the Registrable
Securities  proposed to be sold by such holder may be sold in the public  market
without   registration  under  the  Securities  Act  and  any  applicable  state
securities laws.



<PAGE>
                                                                               5



          4.   Holdback Agreements

               During  the  term of this  Agreement,  each  Stockholder  and the
Company agree not to effect any sale or distribution of equity securities of the
Company or of any securities convertible into or exchangeable or exercisable for
such  securities  during  the 7  days  prior  to  and  the  90  days  after  any
underwritten  registration of equity securities of the Company becomes effective
(except (i) as part of such underwritten  registration,  (ii) in connection with
the grant or exercise of options under the Company's stock option plan, or (iii)
in connection with  obligations of the Company existing on the effective date of
the registration statement relating to such underwritten offering).

          5.   Registration Procedures

               Whenever the  Stockholders  have requested  that any  Registrable
Securities be registered  pursuant to Article 1 or Article 2 of this  Agreement,
subject to the terms of the Stockholders Agreement and the Pledge Agreement, the
Company will, as expeditiously as possible:

               (a) Preparation and Filing of Registration Statement. Prepare and
file with the Securities and Exchange  Commission a registration  statement with
respect to such  Registrable  Securities  and use its best efforts to cause such
Registration  Statement  to become  effective  (provided  that  before  filing a
Registration  Statement or prospectus or any amendments or supplements  thereto,
the  Company  will  furnish  each  Selling  Stockholder  with copies of all such
documents proposed to be filed).

               (b) Preparation and Filing of Amendments and Supplements. Prepare
and file  with the  Securities  and  Exchange  Commission  such  amendments  and
supplements to such Registration Statement and the prospectus used in connection
therewith as may be necessary to keep such Registration  Statement effective for
a period of not less than 120 days or until the Registrable  Securities included
therein have been sold.

               (c) Copies of Documents. Furnish to each Selling Stockholder such
number of copies of such Registration  Statement,  each amendment and supplement
thereto and the prospectus  included in such Registration  Statement  (including
each  preliminary  prospectus),   and  such  other  documents  as  such  Selling
Stockholder may reasonably request in order to facilitate the disposition of the
Registrable Securities included therein owned by such Selling Stockholder.

               (d) Blue Sky Qualifications.  Use its best efforts to register or
qualify such Registrable Securities under such other securities or blue sky laws
of such  jurisdictions  as the managing  underwriters  may  reasonably  request;
provided,   however,   that  in  connection   with  any  such   registration  or
qualification  the Company  shall not be obligated to file a general  consent to
service of process,  or to qualify to do business as a foreign  corporation,  or
otherwise  subject itself to taxation in connection with such  qualification  or
compliance.


<PAGE>
                                                                               6



               (e)  Notification  of  Effectiveness;   Amendments.  Notify  each
Selling  Stockholder at any time when a prospectus  relating to the  Registrable
Securities included therein is required to be delivered under the Securities Act
within  the  period  that the  Company  is  required  to keep  the  Registration
Statement  effective  of the  happening  of any  event as a result  of which the
prospectus  included in such  Registration  Statement as theretofore  amended or
supplemented  contains  an  untrue  statement  of a  material  fact or omits any
material fact necessary to make the statements  therein not misleading,  and, at
the  request  of any such  Selling  Stockholder,  the  Company  will  prepare  a
supplement or amendment to such  prospectus so that, as thereafter  delivered to
the purchasers of such Registrable Securities,  such prospectus will not contain
an  untrue  statement  of a  material  fact or omit to state any  material  fact
necessary to make the statements therein not misleading.

               (f) Listing.  Cause all such Registrable  Securities to be listed
or included on securities  exchanges on which similar  securities  issued by the
Company are then listed or included.

               (g) Transfer  Agent and  Registrar.  Provide a transfer agent and
registrar for all such Registrable  Securities not later than the effective date
of such Registration Statement.

               (h)  Other  Agreements.  Enter  into  such  customary  agreements
(including  an  underwriting  agreement  in form  reasonably  acceptable  to the
Company) and take such other customary actions as may be reasonably necessary to
expedite or facilitate the disposition of such Registrable Securities.

               (i) Letters from Independent Accountants. Obtain a "cold comfort"
letter  addressed to the Company from its  independent  accountants in such form
and covering  such  matters of the type  customarily  covered by "cold  comfort"
letters delivered by such public accountants.

               (j)  Inspection of Records.  Make available for inspection by any
Selling Stockholder,  any underwriter  participating in any disposition pursuant
to such  Registration  Statement,  and any  attorney,  accountant or other agent
retained by any such seller or  underwriter,  all financial  and other  records,
pertinent  corporate  documents  and  properties  of the Company,  and cause the
Company's officers, directors and employees to supply all information reasonably
requested  by any such seller,  underwriter,  attorney,  accountant  or agent in
connection  with such  Registration  Statement,  subject to the  execution  of a
confidentiality agreement reasonably requested by the Company.

          6.   Representations and Warranties of the Company

               The Company hereby represents and warrants to the Stockholders:


<PAGE>
                                                                               7



               6.1.  Due  Organization  and  Good  Standing.  The  Company  is a
corporation   duly  organized  and  validly  existing  under  the  laws  of  its
jurisdiction of incorporation and is duly qualified as a foreign  corporation in
each  jurisdiction in which the failure to be so qualified  could  reasonably be
expected to have a material  adverse effect on the Company and its  subsidiaries
and investees, taken as a whole.

               6.2.  Due  Authorization;   Binding  Effect.  The  execution  and
delivery  of this  Agreement  by the  Company  has been duly  authorized  by all
necessary  corporate action and this Agreement  constitutes the legal, valid and
binding obligation of the Company, enforceable against the Company in accordance
with its terms (except  insofar as  enforceability  may be limited by applicable
bankruptcy,  insolvency,  reorganization,  moratorium or similar laws  affecting
creditors'  rights  generally,  or  principals  governing  the  availability  of
equitable remedies).

               6.3. No Violation or Default.  The  execution and delivery by the
Company of this  Agreement  does not, and the  performance by the Company of its
obligations  hereunder  will not,  violate  any  provisions  of its  articles of
association  or by-laws or  constitute  a default  under any other  agreement to
which the  Company is a party or by which it or its  assets  may be bound  which
could  reasonably be expected to have a material  adverse  effect on the Company
and its subsidiaries and investees, taken as a whole.

          7.   Representations and Warranties of the Stockholders

               Each of the  Stockholders  represents  and  warrants on behalf of
such Stockholder to the Company:

               7.1. Binding Effect. The execution and delivery of this Agreement
by such Stockholder  constitutes the legal, valid and binding obligation of such
Stockholder  enforceable  against such  Stockholder in accordance with its terms
(except  insofar as  enforceability  may be limited  by  applicable  bankruptcy,
insolvency,  reorganization,  moratorium  or similar laws  affecting  creditors'
rights  generally,   or  principals  governing  the  availability  of  equitable
remedies).

               7.2. No Default.  The execution and delivery of this Agreement by
such  Stockholder  does not,  and the  performance  by such  Stockholder  of its
obligations  hereunder  will not,  violate  any other  agreement  to which  such
Stockholder is a party or by which any of its assets may be bound.

          8.   Information Regarding Selling Stockholders

               Each  Selling  Stockholder  shall  provide  to the  Company  such
information  as may  be  reasonably  requested  by the  Company  for  use in the
preparation  and  filing  of any  Registration  Statement  covering  Registrable
Securities owned by such Selling Stockholder,  and the obligation of the Company
to include Registrable Securities in any Registration

<PAGE>
                                                                               8



Statement on behalf of any Selling  Stockholder shall be subject to such Selling
Stockholder's providing such information as promptly as practicable.

          9.   Indemnification

               9.1.   Indemnification   by  the  Company.   The  Company  hereby
indemnifies,  to the extent permitted by law, each Selling Stockholder,  against
all claims, liabilities, losses, damages and expenses, including reasonable fees
and  disbursements  of  counsel  (collectively,  "Losses"),  arising  out  of or
resulting from any untrue or alleged untrue statement of material fact contained
in any  Registration  Statement,  prospectus  or  preliminary  prospectus or any
omission or alleged  omission to state  therein a material  fact  required to be
stated therein or necessary to make the statements  therein not  misleading,  in
the  case  of  a  prospectus  or  preliminary   prospectus,   in  light  of  the
circumstances  under which they were made, except insofar as the same are caused
by or  contained in any  information  furnished in writing to the Company by any
Selling   Stockholder   expressly  for  use  therein  or  by  any  such  Selling
Stockholder's  failure  to  deliver  a copy  of the  Registration  Statement  or
prospectus  or any  amendments  or  supplements  thereto  after the  Company has
furnished such Selling  Stockholder  with copies of the same. In connection with
any underwritten  offering,  the Company will indemnify the underwriters,  their
officers and directors,  and each person who controls such underwriters  (within
the meaning of the  Securities  Act) to the same  extent as provided  above with
respect to the indemnification of the Selling Stockholders.

               9.2.  Indemnification by the Selling Stockholders.  In connection
with any Registration Statement in which a Selling Stockholder is participating,
each such  Selling  Stockholder  will  furnish to the  Company  in writing  such
information  as  is  reasonably  requested  by  the  Company  for  use  in  such
Registration  Statement or  prospectus  and will  indemnify,  severally  and not
jointly, to the extent permitted by law, the Company, its respective  directors,
officers,  employees,  agents,  advisors and representatives and each person who
controls  the  Company  or any of its  affiliates  (within  the  meaning  of the
Securities  Act) against any Losses  arising out of or resulting from any untrue
or alleged untrue statement of material fact or any omission or alleged omission
of a  material  fact  required  to be stated in the  Registration  Statement  or
prospectus or any amendment  thereof or supplement  thereto or necessary to make
the  statements  therein  not  misleading,  in  the  case  of  a  prospectus  or
preliminary  prospectus,  in light of the  circumstances  under  which they were
made,  but only to the extent  that such  untrue  statement  or omission or such
alleged  untrue  statement or alleged  omission is contained in  information  so
furnished  in  writing  by  such  Selling  Stockholder  specifically  for use in
preparation  of the  Registration  Statement;  provided,  in no case,  shall any
indemnity  under this  Section 9.2 exceed the gross  proceeds  from the offering
received by such Selling Stockholder.

               9.3.  Procedures as to  Indemnification.  Any person  entitled to
indemnification hereunder shall (i) give prompt notice to the indemnifying party
of any claim with respect to which it may seek  indemnification  and (ii) unless
in such indemnified  party's reasonable  judgment a conflict of interest between
such indemnified and

<PAGE>
                                                                               9



indemnifying  parties  may  exist  with  respect  to  such  claim,  permit  such
indemnifying  party to assume the defense of such claim with counsel  reasonably
satisfactory  to  the  indemnified  party.  If  such  defense  is  assumed,  the
indemnifying  party will not be subject to any liability for any settlement made
without its consent  (but such consent will not be  unreasonably  withheld).  An
indemnifying party who is not entitled,  or elects not, to assume the defense of
a claim  will not be  obligated  to pay the fees and  expenses  of more than one
counsel for all parties  indemnified by such indemnifying  party with respect to
such  claim,  unless  in the  reasonable  judgment  of any  indemnified  party a
conflict of interest may exist between such  indemnified  party and any other of
such  indemnified  parties  with  respect  to such  claim,  in  which  case  the
indemnifying  party  shall  pay the  fees  and  expenses  of one (1)  additional
counsel.

               9.4.  Contribution.  If the indemnification  provided for in this
Section 8 is held by a court of competent  jurisdiction  to be unavailable to an
indemnified party with respect to any loss, liability,  claim, damage or expense
referred to therein,  then the indemnifying  party, in lieu of indemnifying such
indemnified  party hereunder,  shall contribute to the amount paid or payable by
such indemnified  party as a result of such loss,  liability,  claim,  damage or
expense in such  proportion as is  appropriate  to reflect the relative fault of
the indemnifying party on the one hand and of the indemnified party on the other
in  connection  with the  statements  or omissions  that  resulted in such loss,
liability,  claim,  damage or  expense as well as any other  relevant  equitable
considerations.  The  relative  fault  of  the  indemnifying  party  and  of the
indemnified  party shall be  determined  by reference  to,  among other  things,
whether the  untrue,  or alleged  untrue,  statement  of a material  fact or the
omission  to state a  material  fact  relates  to  information  supplied  by the
indemnifying party or by the indemnified party and the parties' relative intent,
knowledge,  access to  information  and  opportunity  to correct or prevent such
statement or omission.

          10.  Condition to the Company's Obligations

               In  connection  with an  underwritten  offering,  it  shall  be a
condition to the  Company's  obligations  to include  Registrable  Securities on
behalf of any Selling  Stockholder that the underwriters  agree to indemnify the
Company,  its  directors  and  officers and each person who controls the Company
(within the meaning of the Securities Act) against any losses, claims,  damages,
liabilities and expenses  arising out of or resulting from any untrue or alleged
untrue  statement  of material  fact or any  omission  or alleged  omission of a
material fact required to be stated in the registration  statement or prospectus
or any  amendment  thereof  or  supplement  thereto  or  necessary  to make  the
statements  therein  not  misleading,  but only to the extent  that such  untrue
statement or omission or such alleged  untrue  statement or alleged  omission is
contained in information  furnished in writing by such underwriters on their own
behalf specifically for use in preparing the registration statement.



<PAGE>
                                                                              10



          11.  Rule 144; Limits on Resale

               11.1.  Conditions of Rule 144. The Company  represents,  warrants
and covenants that it satisfies and that during the term of this  Agreement,  it
will use its best  efforts to continue to satisfy  the  conditions  set forth in
Rule 144 under the  Securities Act which must be satisfied by an issuer in order
for a  holder  of  restricted  securities  to sell  such  securities  under  the
provisions of such rule.

               11.2.  Limits on Resale.  The Stockholders  acknowledge and agree
that  their  rights to Demand  Registrations  and  Piggyback  Registrations  are
subject to, and  restricted  by, (i) the  covenant set forth in Section 2 of the
Stockholders Agreement whereby the Stockholders shall maintain certain ownership
percentages  of the Company while any Purchaser  Obligations  (as defined in the
Securities  Purchase  Agreement) are  outstanding and (ii) the provisions of the
Pledge  Agreement  pursuant  to which the  Shares of Common  Stock and  Warrants
issued to the  Stockholders  have been pledged to Nalco FT,  Inc.,  as agent for
itself and certain related parties.

          12.  Definitions

               12.1.   Agreement.   The  term   "Agreement"   shall   mean  this
Registration Rights Agreement, as the same may be amended from time to time.

               12.2. Common Stock. The term "Common Stock" shall mean the Common
Stock, par value $0.01 of the Company.

               12.3.  Company.  The term  "Company"  shall have the  meaning set
forth in the first paragraph of this Agreement.

               12.4. Demand Registration.  The term "Demand  Registration" shall
have the meaning set forth in Section 1.1 hereof.

               12.5. Piggyback Registration.  The term "Piggyback  Registration"
shall have the meaning set forth in Section 2.1 hereof.

               12.6.  Pledge Agreement.  The term "Pledge  Agreement" shall mean
that  Bailey  Pledge  Agreement,   dated  as  of  the  date  hereof,  among  the
Stockholders  and Nalco  FT,  Inc.,  as agent for  itself  and  certain  related
parties.

               12.7. Registrable Securities.  The term "Registrable  Securities"
means any Common Stock registered in the names of the Stockholders  from time to
time and any securities  issued or to be issued with respect to such  securities
by way of a stock dividend or stock split or in connection with a combination of
shares, recapitalization,  merger, consolidation or other reorganization.  As to
any  particular  Registrable  Securities,  such  securities  will  cease  to  be
Registrable  Securities when they have been (i) effectively registered under the
Securities Act and disposed of in accordance with the registration

<PAGE>
                                                                              11



statement  covering  them or (ii)  transferred  pursuant  to Rule 144  under the
Securities Act (or any similar rule then in force).

               12.8.  Registration  Expenses.  The term "Registration  Expenses"
means all expenses  incident to the Company's  performance of or compliance with
this Agreement,  including without  limitation all registration and filing fees,
fees and  expenses of  compliance  with  securities  or blue sky laws,  printing
expenses,  messenger  and delivery  expenses,  expenses and fees for listing the
securities  to be  registered  on exchanges or trading  system on which  similar
securities  issued by the  Company  are then  listed or  included,  and fees and
disbursements of counsel for the Company (but not counsel for the  Stockholders,
if any).

               12.9. Registration Statement.  The term "Registration  Statement"
shall have the meaning set forth in Section 1.1 hereof.

               12.10.  Restricted Form. The term "Restricted  Form" shall mean a
form of  registration  statement  under the Securities Act which imposes for its
use a limitation  on the maximum  value or number of  securities  to be included
therein.

               12.11.  Securities Act. The term  "Securities Act" shall mean the
Securities Act of 1933, as amended.

               12.12.  Securities  Purchase  Agreement.   The  term  "Securities
Purchase  Agreement"  shall have the meaning  set forth in the  recitals to this
Agreement.

               12.13. Selling Stockholder.  The term "Selling Stockholder" means
Stockholders  who  request  inclusion  of all or a  portion  of their  shares of
Registrable Securities in a Demand Registration pursuant to Sections 1.1 and 1.3
or a Piggyback Registration pursuant to Section 2.1.

               12.14.  Stockholders.  The term  "Stockholder" or  "Stockholders"
shall have the meaning set forth in the first paragraph hereof.

               12.15.  Stockholders Agreement. The term "Stockholders Agreement"
shall mean that certain Stockholders Agreement, dated the date hereof, among the
Company  and the  Stockholders,  substantially  in the form of  Exhibit _ to the
Securities Purchase Agreement.

               12.16.   Underwriting   Commissions.   The   term   "Underwriting
Commissions" means all underwriting fees,  discounts or commissions  relating to
the  sale of  Registrable  Securities,  but  excludes  any  reasonable  expenses
reimbursed to underwriters.



<PAGE>
                                                                              12



               12.17.  Warrants. The term "Warrants" shall mean those securities
which are  exercisable  for shares of Common  Stock  issued to the  Stockholders
pursuant to the Securities Purchase Agreement.

          13.  Miscellaneous

               13.1.  Notices.  Any notices required  hereunder shall be sent by
certified  or  registered  mail,  and shall be  addressed  to the address of the
Company's corporate  headquarters in the case of any notice to the Company,  and
until  changed by notice to the  Company,  to the  Stockholders  at c/o American
Bailey Corporation, Financial Centre, 695 East Main Street, Stamford, CT 06901.

               13.2.  Amendments  and Waivers.  The provisions of this Agreement
may be amended and the Company may take any action herein prohibited, or omit to
perform  any act herein  required  to be  performed  by it, if the  Company  has
obtained the written consent of the Stockholders.

               13.3.  Successors  and Assigns.  All covenants and  agreements in
this  Agreement by or on behalf of any of the parties hereto will bind and inure
to  the  benefit  of  the  respective   transferees,   successors  and  personal
representatives  of the  Stockholders.  Subject to the terms of the Stockholders
Agreement and the Pledge  Agreement,  the rights set forth in this Agreement may
be assigned by any Stockholder to a transferee or assignee of all or any part of
such Stockholder's Registrable Securities,  provided such transferee or assignee
agrees to become a party to this  Agreement,  in which case such  transferee  or
assignee shall, for all purposes thereafter, be deemed to be a Stockholder.

               13.4.  Governing Law. All questions  concerning the construction,
validity and  interpretation  of this  Agreement will be governed by the laws of
the State of Connecticut.

               13.5. Counterparts.  This Agreement may be executed in any number
of counterparts,  each of which shall be considered to be an original instrument
and to be effective as of the date first written above.

               13.6.  Term.  The term of this  Agreement  shall  commence on the
first (1st)  anniversary of the date first set forth above and terminate on such
date's tenth (10th)  anniversary.  The parties acknowledge and agree that if the
process of a Demand Registration or Piggyback Registration is commenced prior to
the  expiration of the term of this  Agreement,  then the term of this Agreement
shall be extended until the conclusion of such Demand  Registration or Piggyback
Registration  even if such term extends beyond ten (10) years.  The parties also
acknowledge  and agree that the  indemnification  obligations  of each party set
forth in Section 9 shall survive the expiration of the term of this Agreement.


<PAGE>
                                                                              13



          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date first written above.

                                            FUEL-TECH N.V.

                                                  /s/
                                            By________________________________
                                                Name:
                                                Title:

                                            /s/ RALPH E. BAILEY
                                            ----------------------------------
                                            Ralph E. Bailey

                                            /s/ DOUGLAS G. BAILEY
                                            ----------------------------------
                                            Douglas G. Bailey

                                            /s/ J. WILLIAM DRAKE
                                            ----------------------------------
                                            J. William Drake

                                            /s/ NOLAN R. SCHWARTZ
                                            ----------------------------------
                                            Nolan R. Schwartz

                                            /s/ GUY C. HECKMAN
                                            ----------------------------------
                                            Guy C. Heckman

                                            /s/ ROBERT M. DAVENPORT
                                            ----------------------------------
                                            Robert M. Davenport

                                            /s/ BETSY S. KENYON
                                            ----------------------------------
                                            Betsy S. Kenyon

                                            /s/ LINDSAY G. MORTNER
                                            ----------------------------------
                                            Lindsay G. Mortner

                                            /s/ JAMES G. HANNOOSH
                                            ----------------------------------
                                            James G. Hannoosh

                                            /s/ GENEVE E. HENDRICKS
                                            ----------------------------------
                                            Geneve E. Hendricks







                                                       EXHIBIT 6 TO SCHEDULE 13D
                                                    

                                    AGREEMENT

          Pursuant to Rule 13d-1(k)(1) promulgated under the Securities Exchange
Act of 1934, each of the  undersigned  hereby agrees that the Schedule 13D filed
in connection with his or her beneficial  ownership of certain equity securities
of which this Agreement is an Exhibit is filed on behalf of each of us.

          Each of the undersigned  hereby further  constitutes and appoints each
of Douglas G. Bailey and Nolan R. Schwartz as his  attorney-in-fact,  with power
to act jointly or severally, with power of substitution,  for the undersigned in
any and all capacities, to sign the Schedule 13D and any amendments thereto, and
to file the same, with all exhibits thereto and other documents therewith,  with
the Securities and Exchange Commission, hereby ratifying and confirming all that
said attorney-in-fact,  or his substitute or substitutes,  may do or cause to be
done by virtue hereof.

          This Agreement will be construed in accordance with laws of the United
States and the laws of the State of Connecticut.

          This Agreement may be signed in one or more counterparts.



<PAGE>


               IN WITNESS  WHEREOF,  the undersigned have executed and delivered
this Agreement as of April 30, 1998.


                                             /s/ RALPH E. BAILEY
                                             ------------------------------
                                             Ralph E. Bailey

                                             /s/ DOUGLAS G. BAILEY
                                             ------------------------------
                                             Douglas G. Bailey

                                             /s/ NOLAN R. SCHWARTZ
                                             ------------------------------
                                             Nolan R. Schwartz

                                             /s/ GUY C. HECKMAN
                                             ------------------------------
                                             Guy C. Heckman

                                             /s/ J. WILLIAM DRAKE
                                             ------------------------------
                                             J. William Drake

                                             /s/ ROBERT M. DAVENPORT
                                             ------------------------------
                                             Robert M. Davenport

                                             /s/ BETSY S. KENYON
                                             ------------------------------
                                             Betsy S. Kenyon

                                             /s/ JAMES G. HANNOOSH
                                             ------------------------------
                                             James G. Hannoosh

                                             /s/ GENEVE E. HENDRICKS
                                             ------------------------------
                                             Geneve E. Hendricks

                                             /s/ LINDSAY G. MORTNER
                                             ------------------------------
                                             Lindsay G. Mortner




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