Patent ID: 9133046
Filing Date: 2015-09-15
Classification: C02F,Y02A

Abstract:
1. A method of inhibiting formation and deposition of scale in a thermal desalination process, the method comprising adding to a saline aqueous source of the thermal desalination process a composition comprising (i) an acrylic acid 2-acrylamido-2-methylpropyl sulfonic acid copolymer, wherein said copolymer optionally comprises a fluorescent moiety and (ii) an oligomeric phosphosuccinic acid produced from reacting fumaric acid and hypophosphite in the presence of an initiator, wherein the thermal desalination process produces a water temperature of from about 80° C. to about 160° C., wherein said copolymer and said oligomeric phosphosuccinic acid are present in the composition at a copolymer-to-oligomeric phosphosuccinic acid weight ratio of about 1:2.