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

B - Operations, Transporting

01

J

252/84

B01J 23/54 (2006.01) B01J 23/62 (2006.01) H01S 3/036 (2006.01)

Patent

CA 1188288

ABSTRACT OF THE DISCLOSURE A catalyst for recombining oxygen and carbon monoxide in a sealed CO2 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 oxidixing 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.

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