Carbon-containing molecular sieves

Details Carbon-containing molecular sieves Carbon-containing molecular sieves

1974-02-21

1976-06-01

Granger, Theodore A.

Gas separation

Means within gas stream for conducting concentrate to collector

55 75, B01D 5314

Patent

active

039605221

ABSTRACT:
Process for preparing carbon-containing molecular sieves adapted for separating small molecular gases, in particular oxygen, from nitrogen, which comprises treating coke having a content of volatile components of up to 5% at 600.degree. - 900.degree. C with a hydrocarbon which splits off carbon whereby the split-off carbon is deposited in the carbon framework of the coke thereby narrowing the existing pores.

REFERENCES:
patent: 3140931 (1964-07-01), McRobbie
patent: 3140932 (1964-07-01), McKee
patent: 3140933 (1964-07-01), McKee
patent: 3164454 (1965-01-01), Wilson
patent: 3176444 (1965-04-01), Kiyonaga
patent: 3184406 (1965-05-01), Yeo et al.
patent: 3184518 (1965-05-01), Sanders et al.
patent: 3226914 (1966-01-01), Griesmer et al.
patent: 3442819 (1969-05-01), Herbert
patent: 3801513 (1974-04-01), Munzner

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