Process for treating water or aqueous systems

Details Process for treating water or aqueous systems Process for treating water or aqueous systems

1991-06-27

1992-08-04

Hruskoci, Peter

Liquid purification or separation

Processes

Preventing, decreasing, or delaying precipitation,...

252180, C02F 510

Patent

active

051356619

ABSTRACT:
The present invention provides a process for treating water or an aqueous system to prevent the deposition of scale caused by scale-forming impurities in the water which comprises hydrolyzed polymaleic anhydride and a hydrolyzed copolymer of maleic anhydride with at least one mono-ethylenically unsaturated monomer.

REFERENCES:
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patent: 4085060 (1978-04-01), Vassileff
patent: 4086146 (1978-04-01), Block
patent: 4200500 (1980-04-01), Desai
patent: 4640793 (1987-02-01), Persinski
patent: 4698161 (1987-10-01), Hansen
patent: 4704208 (1987-11-01), Bouet
patent: 4740314 (1988-04-01), Kneller
patent: 4925568 (1990-05-01), Morse
patent: 4973409 (1990-11-01), Cook

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