Exhaust gas oxidation catalyst

Details Exhaust gas oxidation catalyst Exhaust gas oxidation catalyst

1983-11-25

1984-10-30

Shine, W. J.

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

4232135, B01J 2104, B01J 2358

Patent

active

044800509

ABSTRACT:
The invention relates to an exhaust gas oxidation catalyst and a method of preparing the same. The method of the invention involves the impregnation of refractory inorganic oxide porous carrier material with an aqueous solution of a lithium salt of an organic acid in sufficient amount to result in a lithium content of from 0.1 to 0.8 wt. % based on the weight of the refractory inorganic oxide, prior to the impregnation of the carrier with catalytically active metallic compounds. The subject lithium impregnation results in a catalytic composite possessing higher oxidation activity and peripheral surface deposition of the catalytic metallic compounds.

REFERENCES:
patent: 3306944 (1967-02-01), Pollitzer
patent: 3839224 (1974-10-01), Yonehara et al.
patent: 3928238 (1975-12-01), Koberstein et al.
patent: 3931050 (1976-01-01), Asano et al.
patent: 4171289 (1979-10-01), Wheelock
patent: 4407733 (1983-10-01), Birkenstock et al.

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