Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group vib metal
Patent
1986-03-31
1987-04-14
Doll, John
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group vib metal
423 57, 423128, 423132, 423146, 423150, 75101R, 75108, 75119, 75121, 502 27, 502 31, 502516, 502517, C01G 3900, C01G 5100, C01G 5300, C01F 700
Patent
active
046577459
ABSTRACT:
A process for the recovery of aluminum and at least one other metal selected from the group consisting of molybdenum, nickel and cobalt from a spent hydrogenation catalyst comprising (1) adding about 1 to 3 parts H.sub.2 SO.sub.4 to each part of spent catalyst in a reaction zone of about 20.degree. to 200.degree. C. under sulfide gas pressure between about 1 and about 35 atmospheres, (2) separating the resultant Al.sub.2 (SO.sub.4).sub.3 solution from the sulfide precipitate in the mixture, (3) oxidizing the remaining sulfide precipitate as an aqueous slurry at about 20.degree. to 200.degree. C. in an oxygen-containing atmosphere at a pressure between about 1 and about 35 atmospheres, (4) separating the slurry to obtain solid molybdic acid and a sulfate liquor containing said at least one metal, and (5) recovering said at least one metal from the sulfate liquor in marketable form.
REFERENCES:
patent: 2112292 (1938-03-01), Jones
patent: 3222933 (1965-12-01), Erickson
patent: 3656888 (1972-04-01), Barry et al.
patent: 4087510 (1978-05-01), Steenken
patent: 4432953 (1984-02-01), Hubred et al.
patent: 4537751 (1985-08-01), Marcantonio
Chemical & Metal Industries, Inc.
Doll John
Stoll Robert L.
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