Process for the preparation of modified zeolites

Details Process for the preparation of modified zeolites Process for the preparation of modified zeolites

1988-04-12

1989-10-17

Dees, Carl F.

Catalyst, solid sorbent, or support therefor: product or process

Zeolite or clay, including gallium analogs

Gallium containing

502 66, 502 74, 502 79, B01J 2908

Patent

active

048747300

ABSTRACT:
Process for the preparation of a modified zeolite of the Y-type by treatment with a solution of a metal salt and a calcination which comprises treating a zeolite of the Y-type having an alkali oxide/aluminium oxide molar ratio of at most about 0.13 with a solution of a multi-valent metal salt having a cationic radius between about 0.6 and about 1.0.ANG. and converting it by calcination into a product having a unit cell size between about 24.21.ANG. and about 24.65.ANG..

REFERENCES:
patent: 3455842 (1969-07-01), Cornelius et al.
patent: 3583903 (1971-06-01), Miale et al.
patent: 3806437 (1974-04-01), Franse et al.
patent: 4257265 (1982-11-01), Chiang
patent: 4304686 (1981-12-01), Telford

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