Auto exhaust catalysts prepared from sulfite treated platinum an

Details Auto exhaust catalysts prepared from sulfite treated platinum an Auto exhaust catalysts prepared from sulfite treated platinum an

1974-06-05

1976-01-13

Garvin, Patrick P.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

4232135, B01J 2702

Patent

active

039323099

ABSTRACT:
A process for preparing a catalyst that has improved activity and efficiency for conversion of hydrocarbons is disclosed. The catalyst is prepared by applying sulfito complexes have the emperical formula M.sub.6 (x) (SO.sub.3).sub.4 where M is H+ NA+, K+ or NH.sub.4 + and x is platinum, palladium or mixtures thereof. In addition, the compounds M.sub.2 (x) (SO.sub.3).sub.2 and M.sub.2 (x) (SO.sub.3).sub.2 also have utility in our process. The complex salt is impregnated onto a support and activated by calcination in air or heating in a reducing atmosphere.

REFERENCES:
patent: 3636029 (1972-01-01), Smith
patent: 3803054 (1974-04-01), Habig et al.

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