Membrane separation of organics from aqueous solutions

Details Membrane separation of organics from aqueous solutions Membrane separation of organics from aqueous solutions

1979-08-27

1982-01-19

Spear, Jr., Frank A.

Liquid purification or separation

Processes

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

55 16, 2105002, B01D 1300

Patent

active

043115942

ABSTRACT:
Organics are separated from aqueous solutions by contacting the aqueous solution feed with a first surface of a polymeric membrane selectively permeable to organic components; while maintaining a second and opposite membrane surface at a lower chemical potential than the first membrane surface for said organic components, permeating a portion of the organic components into and through the membrane; and withdrawing from the second membrane surface a mixture having a higher total concentration of organic components than the organic components concentration of the aqueous solution feed stream.

REFERENCES:
patent: 2953502 (1960-09-01), Binning et al.
patent: 2981680 (1961-04-01), Binning
patent: 3537988 (1970-11-01), Marcinkowsky et al.
patent: 3615024 (1971-10-01), Michaels
patent: 3750735 (1973-08-01), Chiang et al.
patent: 3931000 (1976-01-01), Hamilton
patent: 3950247 (1976-04-01), Chiang et al.
patent: 3956112 (1976-05-01), Lee et al.
patent: 4218312 (1980-08-01), Perry

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