Treatment of aqueous systems

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

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210701, 252180, C02F 514

Patent

active

044328796

ABSTRACT:
Sludge is dispersed in cooling water systems by means of a combination of 2-phosphonobutane-1,2,4-tricarboxylic acid and a water soluble organic polymer possessing carboxylic and sulfonate groups.

REFERENCES:
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patent: 3890228 (1975-06-01), Hwa et al.
patent: 4048066 (1977-09-01), Cuisia et al.
patent: 4118318 (1978-10-01), Welder et al.
patent: 4209398 (1980-06-01), Ii et al.
patent: 4255259 (1981-03-01), Hwa et al.

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