Catalyst for purifying exhaust gases

Details Catalyst for purifying exhaust gases Catalyst for purifying exhaust gases

1974-02-11

1976-04-27

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252455R, 252466B, 252474, 4232135, B01J 2346, B01J 2372, B01J 2374

Patent

active

039533638

ABSTRACT:
A catalyst for removing nitrogen oxides, carbon monoxide, and hydrocarbons in exhaust gases, said catalyst being prepared by supporting copper and nickel on a carrier and then further supporting at least two components selected from the group consisting of iridium, rhodium and ruthenium, the atomic weight ratio of copper to nickel being 0.2 to 5, the atomic weight ratio of the sum of copper and nickel to the sum of at least two components selected from the group consisting of iridium, rhodium and ruthenium being 10 to 100,000, and the total weight of copper and nickel being 10 to 200 g per liter of the catalyst.

REFERENCES:
patent: 3257163 (1966-06-01), Stiles
patent: 3699683 (1972-10-01), Tourtellotte et al.
patent: 3702236 (1972-11-01), Fessler
patent: 3719739 (1973-03-01), Thompson
patent: 3729936 (1973-05-01), De Palma et al.
patent: 3784675 (1974-01-01), Kobyunski et al.
patent: 3816594 (1974-06-01), Kobylinski et al.

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