Rare earth exchange X zeolites, catalyst employing the same and

Details Rare earth exchange X zeolites, catalyst employing the same and Rare earth exchange X zeolites, catalyst employing the same and

1977-06-20

1979-08-14

Dees, Carl

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

423112, B01J 2906

Patent

active

041644832

ABSTRACT:
This invention relates to the preparation of rare earth exchanged X type faujasite zeolites in which the Na content is reduced by exchange with rare earth cations to introduce in excess of about 0.9 equivalents of rare earth cations per gram atom of aluminum and catalysts employing the same.

REFERENCES:
patent: 3173854 (1965-03-01), Eastwood et al.
patent: 3537816 (1970-11-01), Moscow
patent: 3867307 (1975-02-01), Scherzer et al.

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