Vapor permselective membrane

Details Vapor permselective membrane Vapor permselective membrane

1989-01-26

1990-03-20

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

55 68, 55158, B01D 5322

Patent

active

049098101

ABSTRACT:
A vapor permselective membrane consisting essentially of an ion exchange membrane made of a fluorine-containing polymer having a fixed ion concentration of from 1 to 6N, a water content of from 20 to 250% by weight and an ion exchange capacity of from 0.6 to 2.5 meq/g dry resin, the ion exchange membrane having a thickness of from 0.1 to 300 .mu.m and a moisture content of from 1 to 10% by weight, the permselective membrane having a water vapor permeation rate of at least 50 m.sup.3 /m.sup.2.atm.

REFERENCES:
patent: 3735558 (1973-05-01), Skarstrom et al.
patent: 3735559 (1973-05-01), Salemme
patent: 3738813 (1973-06-01), Esmond
patent: 4497640 (1985-02-01), Fournie et al.
patent: 4515761 (1985-05-01), Plotzker
patent: 4612019 (1986-09-01), Langhorst
patent: 4732586 (1988-03-01), Dick et al.
patent: 4741744 (1988-05-01), Wu et al.
patent: 4783201 (1988-11-01), Rice et al.

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