Method for producing a catalyst for oxidizing carbon monoxide

Details Method for producing a catalyst for oxidizing carbon monoxide Method for producing a catalyst for oxidizing carbon monoxide

1983-10-25

1984-12-25

Shine, W. J.

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502325, 502344, B01J 2362

Patent

active

044904827

ABSTRACT:
A catalyst for recombining oxygen and carbon monoxide in a sealed CO.sub.2 laser includes a stannic oxide base and a coating of at least one metal selected from the group consisting of platinum, palladium, ruthenium, gold and rhodium. The stannic oxide base is produced by preparing a mixture of a stannous salt such as stannous chloride and stannic acid, adding a base to the mixture to produce a mixture of stannic and stannous hydroxide, and adding an oxidizing agent such as hydrogen peroxide to the hydroxide mixture to yield a precipitate of stannic oxide. The stannic oxide is mixed with a catalyst metal salt such as the chloride of one of the metals mentioned hereinbefore, and a reducing agent, e.g. formic acid is added to the oxide and salt mixture to produce the salt, whereby the catalyst metal is deposited on the stannic oxide.

REFERENCES:
patent: 3842017 (1974-10-01), Armistead et al.
patent: 4000089 (1976-12-01), Senda

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