Use of a carboxylic functional polyampholyte to inhibit the prec

Liquid purification or separation – Processes – Preventing – decreasing – or delaying precipitation,...

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252180, C02F 510

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active

044604777

ABSTRACT:
The instant invention is directed to a method of inhibiting the precipitation and deposition of scale in an aqueous system comprising adding an effective amount, preferably at least 0.1 ppm, of a carboxylic functional polyampholyte, or the salt thereof, to said aqueous system.

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patent: 4029577 (1977-06-01), Godlewski et al.
patent: 4164521 (1979-08-01), Goodman
patent: 4209398 (1980-06-01), Ii et al.
patent: 4271058 (1981-06-01), Trabitzsch et al.
patent: 4357207 (1982-11-01), Yorkei

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