Composition for inhibiting scale in water systems

Compositions – Water-softening or purifying or scale-inhibiting agents – Plant or organic material containing

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210699, 2523892, 25238923, 422 15, C02F 514

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active

050531611

ABSTRACT:
This invention is directed to the treatment of aqueous systems and specifically to the inhibition and removal of scale and solid deposits in industrial water systems. The invention comprises the use of substoichiometric amounts of an inhibitor composition comprising at least one acrylic polymer, at least one water-soluble polymer derived from maleic acid or its anhydride, a water-soluble organic phosphonate and at least one water-soluble chelating agent. This inhibitor composition is added to the water in the systems in amounts ranging from about 0.01 to 600 parts of the inhibitor per million parts by weight of the water.

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