Composition and method for inhibiting scale

Details Composition and method for inhibiting scale Composition and method for inhibiting scale

1985-03-07

1985-12-03

Hruskoci, Peter

Liquid purification or separation

Processes

Preventing, decreasing, or delaying precipitation,...

210698, 252180, C02F 512, C02F 514

Patent

active

045564930

ABSTRACT:
The accumulation of scale in an aqueous system is inhibited by the addition of a composition comprising a copolymer of maleic acid or anhydride and and styrene sulfonic acid, an organic phosphonate such as aminotri(methylene phosphonic acid) or hydroxyethylidene diphosphonic acid, and an aminocarboxylate chelating compound such as nitrilotriacetic acid or ethylenediamine tetraacetic acid, or their water soluble salts.

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patent: 4351796 (1982-09-01), Marshall

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