Polyphosphazene gas separation membranes
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United States of America Patent
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Dec 1, 1987
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N/A
app pub date -
Dec 28, 1983
filing date -
Dec 28, 1983
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Expired
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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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