Process for resolving oil-in-water emulsions by the use of a cat

Details Process for resolving oil-in-water emulsions by the use of a cat Process for resolving oil-in-water emulsions by the use of a cat

1976-08-30

1977-05-31

Wyse, Thomas G.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 52, 252329, 252344, B01D 1704

Patent

active

040267946

ABSTRACT:
2.0 to 20,000 ppm of a composition comprising 15-50% by weight of a water soluble salt of an amphoteric metal and from 1.0 to 15% by weight of a water soluble cationic vinyl addition terpolymer said terpolymer containing prior to polymerization 5-40% by weight of a diallyl dimethyl ammonium halide, 5-75% by weight N-vinyl-2-pyrrolidone and 10-60% by weight of acrylamide or methacrylamide has been found to be an effective oil-in-water emulsion breaker. The above composition when added to the oily waste water will neutralize the negatively charged water particles and form an easily recoverable floc containing the oil.

REFERENCES:
patent: 2615852 (1952-10-01), Kocher
patent: 2915476 (1959-12-01), Shen
patent: 3585148 (1971-06-01), Sackis
patent: 3691086 (1972-09-01), Lees et al.

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