Asymmetric gas separation membranes

Details Asymmetric gas separation membranes Asymmetric gas separation membranes

1983-06-30

1984-12-04

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

B01D 5322

Patent

active

044862024

ABSTRACT:
Asymmetric gas separation membranes of materials having selective permeation of at least one gas of a gaseous mixture over that of one or more remaining gases of the gaseous mixture, exhibit significantly improved permeation selectivities for the at least one gas when the asymmetric membrane is contacted on one or both surfaces with an effective amount of a Lewis acid. The improved asymmetric gas separation membranes, process for producing the improved membrane, and processes utilizing such membranes for selectively separating at least one gas from a gaseous mixture by permeation are disclosed.

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