Process for preparation of hydrogen-ion-exchanged dealuminated m

Details Process for preparation of hydrogen-ion-exchanged dealuminated m Process for preparation of hydrogen-ion-exchanged dealuminated m

1986-12-02

1988-05-17

Dees, Carl F.

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

Zeolite or clay, including gallium analogs

Mordenite type

502 79, B01J 2918, B01J 2908

Patent

active

047450959

ABSTRACT:
Hydrogen ion-exchanged dealuminated mordenite having a reduced alumina content is advantageously prepared by filtering a crystallization slurry composed of a crystallization mother liquor and synthetic sodium type mordenite and obtained when the crystallization is completed, through a filter to form a wet cake layer of the sodium type mordenite; passing through the cake layer an aqueous solution of a mineral acid having a concentration of 0.1N to 5N; and then, washing the cake layer.

REFERENCES:
patent: 3367884 (1968-02-01), Reid, Jr.
patent: 3485748 (1969-12-01), Eberly, Jr. et al.
patent: 3506400 (1970-04-01), Eberly, Jr. et al.
patent: 3597155 (1971-08-01), Flanigen
patent: 3640681 (1972-02-01), Pickert
patent: 3719026 (1973-03-01), Sand
patent: 4093560 (1978-06-01), Kerr et al.
patent: 4447669 (1984-05-01), Hamon et al.

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