Multi-layer membrane and the use thereof for the separation of l

Details Multi-layer membrane and the use thereof for the separation of l Multi-layer membrane and the use thereof for the separation of l

1988-04-27

1990-04-10

Spear, Frank

Liquid purification or separation

Casing divided by membrane into sections having inlet

Planar membrane

210490, 21050042, B01D 1300

Patent

active

049158341

ABSTRACT:
A multi-layer membrane having a porous backing layer of polyacrylonitrile, polysulfone or the like, and an active separating layer of polyvinyl alcohol or cellulose acetate. The membrane is particularly suitable for the separation of water-alcohol mixtures according to the pervaporation process.

REFERENCES:
patent: 3276996 (1966-10-01), Lazare
patent: 4067805 (1978-01-01), Chiang et al.
patent: 4755299 (1988-07-01), Bruschke

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