Method of filtering oil from oil-and-water emulsions

Details Method of filtering oil from oil-and-water emulsions Method of filtering oil from oil-and-water emulsions

1980-03-07

1982-01-05

Spear, Jr., Frank A.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210488, 210799, 210DIG5, B01D 1704

Patent

active

043092896

ABSTRACT:
A method of separating an oil-and-water phase from an oil-and-water emulsion, which method comprises passing the emulsion first through a wall of a prefilter composed first of fibres having an energy of adhesion of from 2 to 50 ergs/cm.sup.2 to form larger oil droplets, and, thereafter, passing the larger oil droplets and the emulsion through adjacent layers of glass fibres, to separate the oil phase from the oil-and-water emulsion, and then collecting and removing the oil phase, while permitting the passage of an essentially oil-free water phase of the emulsion from the prefilter.

REFERENCES:
patent: 3767054 (1973-10-01), Farrow et al.
patent: 4102785 (1978-07-01), Head et al.

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