Membrane separation process

Details Membrane separation process Membrane separation process

1991-11-18

1992-11-03

Sever, Frank

Liquid purification or separation

Processes

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

55 16, B01D 6136

Patent

active

051600463

ABSTRACT:
Aqueous solutions of organic oxygenates, typified by concentrated aqueous solutions of ethanol or isopropanol, are dewatered by pervaporation through a polyimine membrane which has been interfacially cross-linked with a polyisocyanate or a poly(carbonyl chloride).

REFERENCES:
patent: 4865745 (1989-09-01), Pasternak

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