Method and demulsifier composition

Details Method and demulsifier composition Method and demulsifier composition

1980-09-22

1982-02-23

Spear, Jr., Frank A.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210923, 210925, 252344, 252358, B01D 1704

Patent

active

043168060

ABSTRACT:
A demulsifier and method for use in oil-spill recovery and clean-up that rapidly and efficiently separates a water/crude oil emulsion into its water and crude oil phases. The demulsifier comprises various mixtures of two components A and B. A is comprised of at least one wetting agent formulated to displace one liquid from the surface of a bi-wetted solid disposed at a boundary of a water droplet and oil phase continuum with another liquid via a reduction of the liquid-solid interfacial tension; and B is comprised of at least one surfactant effective in displacing an indigenous emulsifying surfactant film by another surfactant that permits water droplet coalescence and separation from said oil phase continuum.

REFERENCES:
patent: 3597152 (1971-08-01), Shaw
patent: 3676357 (1972-07-01), Ciuti et al.
patent: 3756959 (1973-09-01), Vitalis et al.
patent: 3936317 (1976-02-01), Lehmann
patent: 4089803 (1978-05-01), Bessler

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