Process for dispersal and redispersal of platinum group metals c

Details Process for dispersal and redispersal of platinum group metals c Process for dispersal and redispersal of platinum group metals c

1978-05-01

1980-03-11

Konopka, P. E.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

208138, 208139, 208140, 252411R, 252419, 252439, 252466PT, 252472, 585482, B01J 3720, B01J 3724, B01J 2340, B01J 2396

Patent

active

041927710

ABSTRACT:
A process for the redispersal or dispersal of a platinum group metal in a catalyst comprising an oxidized platinum group metal component and a refactory inorganic support comprises the steps of treating the oxidized catalyst with a stream of inert gas containing a sulphiding agent and reducing the sulphided catalyst in a stream of hydrogen-containing gas at a temperature in the range 200.degree. to 600.degree. C. to give a maximum catalyst temperature of 550.degree. C.

REFERENCES:
patent: 2880161 (1959-03-01), Moore et al.
patent: 3660271 (1972-05-01), Keith
patent: 3838039 (1974-09-01), Vesely et al.
patent: 3953368 (1976-04-01), Sinfelt
patent: 3981823 (1976-09-01), Yates
patent: 4046671 (1977-09-01), Burbidge et al.

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