Asymmetric or composite polyquinoxaline base membranes, possible

Details Asymmetric or composite polyquinoxaline base membranes, possible Asymmetric or composite polyquinoxaline base membranes, possible

1986-02-10

1988-03-22

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

55 16, 55 29, 55 68, 21050023, 21050028, B01D 5322

Patent

active

047325860

ABSTRACT:
The present invention relates to an asymmetric gaseous permeation membrane, also applicable to fractionation of a gaseous mixture and in particular dehydration and deacidification of gases, in particular gaseous hydrocarbons, and obtained from polymers of the polyquinoxaline family presenting the unit: ##STR1## and R=H or phenyl radical

REFERENCES:
patent: 3980456 (1976-09-01), Browall
patent: 4113628 (1978-09-01), Alegranti
patent: 4159251 (1979-06-01), Wrasidlo et al.
patent: 4214020 (1980-07-01), Ward et al.
patent: 4364759 (1982-12-01), Brooks et al.
patent: 4529793 (1985-07-01), Abe et al.
patent: 4533369 (1985-08-01), Okita
patent: 4576721 (1986-03-01), McCreedy et al.

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