Method for preparation of an improved K-A type zeolite and for s

Details Method for preparation of an improved K-A type zeolite and for s Method for preparation of an improved K-A type zeolite and for s

1974-05-06

1976-09-28

Adee, John

Gas separation

Means within gas stream for conducting concentrate to collector

55 68, 55 75, B01D 1500

Patent

active

039829120

ABSTRACT:
A novel type of zeolite is obtained by replacing ion-exchangeable active cations in A-type zeolite with potassium ions and divalent cations at 33.3 to 83.3% and 16.7 to 66.7%, respectively to combine into the total of 100%. This zeolite is effective for separation of a mixture consisting of non-polar molecules and polar molecules having the adsorption effective cross-section less than 5 A. For instance, monosilane and phosphine, both of which are adsorbed by the conventional Ca--A type zeolite, can be separated by the novel K--A type zeolite which adsorbs phosphine.

REFERENCES:
patent: 3785122 (1974-01-01), Vatsudual et al.

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