Thermally stable noble metal-containing zeolite catalyst

Details Thermally stable noble metal-containing zeolite catalyst Thermally stable noble metal-containing zeolite catalyst

1990-03-28

1991-08-20

Dees, Carl F.

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

Zeolite or clay, including gallium analogs

Gallium containing

502 66, 502 74, B01J 2912, B01J 2922, B01J 2932

Patent

active

050414011

ABSTRACT:
A zeolite catalyst composition having increased resistance to agglomeration and/or migration of its noble metal component at high temperatures and a method for preparing the catalyst composition are disclosed. The zeolite catalyst composition contains a non-framework multivalent metal oxide to stabilize the noble metal. The multivalent metal oxide, such as alumina, can be introduced into the zeolite component by diffusion, impregnation, ion-exchange, and/or calcination.

REFERENCES:
patent: 4656149 (1987-04-01), Jacobs et al.
patent: 4717700 (1988-01-01), Venkatram et al.
patent: 4957891 (1990-09-01), Sachtler et al.
"Chemical Anchoring of Platinum in Zeolites", by M. S. Tzou et al., Applied Catalysis, 20 (1986), pp. 231-238.

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