Catalytic process

Details Catalytic process Catalytic process

1973-10-02

1976-02-17

Shaver, Paul F.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252457, 4232135, B01J 2906, B01J 2900

Patent

active

039391043

ABSTRACT:
In a supported catalyst for treating internal combustion engine exhaust gases the active material comprises a non-noble metal or compound thereof and the support comprises a primary support carrying a secondary support; the secondary support consists essentially of one or more involatile acidic and/or amphoteric oxides substantially in combination with one or more basic oxides from Group II, III or IV of the Periodic Table. A platinum group metal may also be present. The catalyst can be used for reductive or oxidative treatment or for simultaneous reduction of nitrogen oxides and oxidation of carbon monoxide and hydrocarbons and exhibits high activity and long life.

REFERENCES:
patent: 3256207 (1966-06-01), Arnold
patent: 3535228 (1970-10-01), Csicsery et al.
patent: 3716475 (1973-02-01), Csicsery et al.
patent: 3803026 (1974-04-01), Jaffe

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