Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – Activating treatment
Patent
1988-09-19
1989-10-03
Dees, Carl F.
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
Activating treatment
502 26, B01J 2906, B01J 2938
Patent
active
048717029
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 10 is maintained in the solution. The treated zeolite may thereafter be calcined without prior ammonium-exchange to provide the zeolite in the hydrogen form.
REFERENCES:
patent: 3404086 (1968-10-01), Plank et al.
patent: 4596704 (1986-06-01), Miale et al.
Chang Clarence D.
Chu Cynthia T-W.
Lee Carol S.
Partridge Randall D.
Dees Carl F.
McKillop Alexander J.
Mobil Oil Corp.
Santini Dennis P.
Speciale Charles J.
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