Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – And additional al or si containing component
Patent
1983-10-03
1985-07-02
Meros, Edward J.
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
And additional al or si containing component
423328, 423329, 502 66, 502 71, 502 77, B01J 2906, C01B 3328
Patent
active
045268789
ABSTRACT:
The present invention relates to a new method for supporting a metal and/or a metal oxide on a crystalline aluminosilicate zeolite. The resulting products are useful as catalysts and are designated ZKU-5, ZKU-6 and ZKU-7 (Zeolite Kyoto University catalyst). These catalysts display superior catalytic activity and selectivity and have a longer life than catalysts of the prior art.
One method of the invention involves crystallizing a zeolite composition in the presence of both a conditioning agent and a crystal seed supporting the metal and/or metal oxide, the latter providing a nucleus for crystallization. The conditioning agent comprises the lower analogs of a tetraalkyl ammonium cation. The resulting crystal can support one or more metals or metal oxides or a mixture thereof.
The disclosure compares the catalysts of the invention with a known, prior art catalyst, namely ZSM-34.
REFERENCES:
patent: 3373109 (1968-03-01), Frilette et al.
patent: 3769386 (1973-10-01), Rundell et al.
patent: 4208305 (1980-06-01), Kouwenhoven et al.
patent: 4400328 (1983-08-01), Takegami et al.
Inui Tomoyuki
Takegami Yoshinobu
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