Polyphosphazene gas separation membranes

Details Polyphosphazene gas separation membranes Polyphosphazene gas separation membranes

Filed on

1983-12-28

Date issued

1987-12-01

Examiner

Spitzer, Robert

Patent Class

Gas separation

SubClass

Means within gas stream for conducting concentrate to collector

Other Related Categories

55 78, 55158, B01D 5322

Type

Patent

Status

active

Patent number

047102047

Description

ABSTRACT:
Polyphosphazenes are disclosed as gas separation membranes which exhibit effective preferential selectivity and permeabilities for acid gases relative to non-acid gases contained in feed gas stream mixtures, particularly where the acid gases are mixed with gaseous hydrocarbons. The polyphosphazenes are rubbery polymers having attractive acid gases transport properties and improved thermal and chemical stability. Processes utilizing polyphosphazene membranes for separating acid gases from gasous mixtures containing non-acid gases are also disclosed.

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