Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – And additional al or si containing component
Patent
1983-07-11
1984-08-28
Dees, Carl F.
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
And additional al or si containing component
502 77, 502 85, B01J 2928, B01J 3726
Patent
active
044684754
ABSTRACT:
In the process for activating high-silica zeolite catalyst with alumina activating agent wherein a crystalline zeolite catalyst having a silica:alumina ratio greater than 70 and a constraint index of 1 to 12 is contacted with the activating agent at elevated temperature, the improvement which comprises: hydrothermally treating an intimate mixture of zeolite catalyst and an effective amount of activating agent in contact with an aqueous liquid phase under reaction conditions to increase the cracking activity of the catalyst.
The activated catalyst product may be produced by hydrothermal treatment of a composite mixture of zeolite and hydrated alumina binder material. The preferred zeolites are acid ZSM-5 type crystalline materials having a silica:alumina ratio of at least 2000:1.
REFERENCES:
patent: 4427787 (1984-01-01), Miale et al.
patent: 4427788 (1984-01-01), Miale et al.
patent: 4435516 (1984-03-01), Chang et al.
Dees Carl F.
Gilman M. G.
McKillop A. J.
Mobil Oil Corporation
Wise L. G.
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