Ammonium activation of zeolites in the presence of gaseous ammon

Details Ammonium activation of zeolites in the presence of gaseous ammon Ammonium activation of zeolites in the presence of gaseous ammon

1988-01-04

1989-06-06

Dees, Carl F.

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

Zeolite or clay, including gallium analogs

Activating treatment

502 71, 502 77, B01J 2928

Patent

active

048373982

ABSTRACT:
Alumina-composited zeolite catalysts are activated by contact with an aqueous ammonium solution under ammonia gas pressure such that a pH of at least about 8 is maintained in the solution. The treated zeolite may thereafter be calcined without prior ammonium-exchange to provide the zeolite in the hydrogen form.

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