Method of breaking oil-in-water emulsions

Details Method of breaking oil-in-water emulsions Method of breaking oil-in-water emulsions

1979-06-04

1980-12-02

Lovering, Richard D.

Liquid purification or separation

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

Responsive to fluid flow

210 54, 252340, 252345, 252358, B01D 1704

Patent

active

042370051

ABSTRACT:
The use as oil-in-water emulsion breakers of phosphonic acid ester condensate oligomers is disclosed which oligomers are ester condensates of alkyl-1-hydroxy-1, 1-diphosphonic acid having the formula: ##STR1## where R.sub.1 and R.sub.2 each represent a group having the formula C.sub.x H.sub.2x+1, where x is from 6 to 13; Y is ##STR2## M is a water soluble cation such as Na, K or NH.sub.4, and n is 1 or greater.

REFERENCES:
patent: 1596593 (1926-08-01), De Groote
patent: 3033889 (1962-05-01), Chiddix et al.
patent: 3214454 (1965-10-01), Blaser et al.
patent: 3387024 (1968-06-01), Quimby
patent: 3400151 (1968-09-01), Quimby et al.
patent: 3621081 (1971-11-01), Prentice

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