Membrane separation of water from aqueous mixtures

Details Membrane separation of water from aqueous mixtures Membrane separation of water from aqueous mixtures

1974-04-01

1979-03-06

Spear, Jr., Frank A.

Liquid purification or separation

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

Responsive to fluid flow

210321A, B01D 1300

Patent

active

041429664

ABSTRACT:
Water is separated from aqueous mixtures of organic and inorganic compounds by contacting the aqueous mixture against a first surface of a polymeric membrane selectively permeable to water, contacting the second surface of the membrane with a sweep liquid having a thermally dependent water miscibility, withdrawing a water enriched miscible sweep liquid from the second surface, and forming a water rich phase and a sweep liquid phase through the thermal adjustment of the withdrawn water-enriched miscible sweep liquid. The water miscible sweep liquid is selected from those liquids having normal or inverted thermal miscibility for water and which allow for the thermal separation of a water-rich liquid phase.

REFERENCES:
patent: 2930754 (1960-03-01), Stuckey
patent: 2985588 (1961-05-01), Binning et al.
patent: 3088909 (1963-05-01), Davison et al.
patent: 3216930 (1965-11-01), Glew
patent: 3228877 (1966-01-01), Mahon
patent: 3386912 (1968-06-01), Lazare

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