Method for recovering valuable metals from deactivated catalysts

Details Method for recovering valuable metals from deactivated catalysts Method for recovering valuable metals from deactivated catalysts

1979-08-20

1982-08-10

Hearn, Brian E.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

423 54, 423150, C01G 5110, C01G 5310, C01G 3900, C01G 3100

Patent

active

043437745

ABSTRACT:
Cobalt is recovered in substantial amounts from spent catalyst particles comprising cobalt components supported on alumina or other aluminum-containing refractory oxides. The process comprises contacting the catalyst with sulfuric acid, then subjecting the catalyst to oxidation in an oxygen-containing atmosphere under conditions of elevated temperature, and again contacting the catalyst with sulfuric acid to extract cobalt. Molybdenum, if present on the catalyst, is recovered with the cobalt, as are other metals, such as nickel and tungsten.

REFERENCES:
patent: 1779841 (1930-10-01), Fischer
patent: 3256205 (1966-06-01), Constabaris
patent: 3367740 (1968-02-01), Zubryckyj
patent: 3567433 (1971-03-01), Gutnikov
patent: 3578395 (1971-05-01), Kluksdahl
patent: 4145397 (1979-03-01), Toida
patent: 4192851 (1980-03-01), Hirsch

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