Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1997-12-18
1999-10-05
Hruskoci, Peter A.
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
210734, 210736, 210917, 210928, C02F 154, B01D 2101
Patent
active
059618388
ABSTRACT:
Processes for removing color from a paper mill waste effluent and for removing color from a textile plant waste effluent utilizing an amphoteric copolymer/polyamine combination are described. A preferred amphoteric copolymer is poly(dimethylaminoethylacrylate methyl chloride quaternary salt/acrylic acid) and a preferred polyamine is a polymeric reaction product of epichlorohydrin and dimethylamine.
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Braden Michael L.
Metzgar Richard E.
Shah Jitendra T.
Breininger Thomas M.
Brumm Margaret M.
Hruskoci Peter A.
Morrison Betsey J.
Nalco Chemical Company
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