Process for making a carrier-supported catalyst

Details Process for making a carrier-supported catalyst Process for making a carrier-supported catalyst

1986-10-22

1988-01-12

Shine, W. J.

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502325, B01J 2342, B01J 2344, B01J 2346

Patent

active

047191970

ABSTRACT:
A carrier-supported catalyst is made by impregnating a ceramic honeycomb structure having a layer of a heat resistant metal oxide applied to it with the aqueous solution of at least one metal selected from platinum, rhodium and palladium, drying the impregnated honeycomb structure and annealing it. More particularly a drying gas regularly distributed across the entire cross-sectional area of the impregnated honeycomb structure is passed therethrough at 20.degree. to 400.degree. C. The temperature and quantity of drying gas are selected so that water ceases to be evaporated from the impregnated honeycomb structure after 30 to 300 seconds and the dried impregnated honeycomb structure is heat-treated over a period of 1 to 3 hours at temperatures up to 1000.degree. C.

REFERENCES:
patent: 4206087 (1980-06-01), Keith et al.
patent: 4407735 (1983-10-01), Sawamura
patent: 4587231 (1986-05-01), Sawamura et al.

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