Gas separation membrane

Details Gas separation membrane Gas separation membrane

1974-08-14

1977-09-13

Spear, Jr., Frank A.

Gas separation

Means within gas stream for conducting concentrate to collector

210500M, B01D 5322

Patent

active

040479080

ABSTRACT:
Novel gas separation film membranes are made by grafting alpha-olefinic, polymerizable monomers having hydrophilic functional groups and having, e.g., about from 2 to about 12 carbon atoms, to nylon, and forming a film from the resulting copolymers. A complex-forming metal component which is active in the presence of water is provided in the film. The invention also includes the process of separating components from gaseous mixtures using the membranes. Of particular interest is the separation of aliphatically-unsaturated hydrocarbons from mixtures, for example, the separation of ethylene from one or more of ethane, methane and hydrogen.

REFERENCES:
patent: 3088791 (1963-05-01), Cline et al.
patent: 3276996 (1966-10-01), Lazare
patent: 3327859 (1967-06-01), Pall
patent: 3524546 (1970-08-01), Huehn et al.
patent: 3770842 (1973-11-01), Steigelmann et al.
patent: 3812651 (1974-05-01), Steigelmann
patent: 3844735 (1974-10-01), Steigelmann et al.

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