Gas separation by semi-permeable membranes

Details Gas separation by semi-permeable membranes Gas separation by semi-permeable membranes

1989-09-19

1990-07-17

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

55 71, 55 72, 423342, 423347, B01D 5322, B01D 7168

Patent

active

049418939

ABSTRACT:
A method is disclosed for separating gaseous silicon compounds from hydrogen and/or hydracids. Specifically, the method comprises the utilization of semi-permeable membranes for such gaseous separation. Particularly preferred is a composite membrane comprised of a coating separation layer of sulfonated polysulfone and a support layer of polysulfone. Mixtures of hydrogen and silane are particularly suitable for being separated by means of composite membrane separation.

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D. L. MacLean et al., "Hollow Fibers Recover Hydrogen", Chemical Engineering, Feb. 25, 1980, vol. 87, No. 4, pp. 54 and 55.

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