Method of preparing vanadium pentoxide from metallurgical slags

Details Method of preparing vanadium pentoxide from metallurgical slags Method of preparing vanadium pentoxide from metallurgical slags

1976-02-23

1977-08-02

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vb metal

423 68, 423592, 71 31, 71 33, 71 48, C01G 3100

Patent

active

040396142

ABSTRACT:
A method for extracting vanadium pentoxide from metallurgical slags containing vanadium with a ratio of (V.sub.2 O.sub.5 /CaO) being greater than 0.05 including roasting in an oxidizing medium a slag which has been disintegrated to a particle size less than 0.1 mm and then processing the roasted particles with solutions of phosphoric acid containing from 5 to 20 per cent by weight of H.sub.3 PO.sub.4, with a liquid-to-solid ratio of from 2-10:1 at a temperature of from 50.degree. - 100.degree. C for a period of time from 30 to 120 minutes.

REFERENCES:
patent: 2168169 (1939-08-01), Mayer
patent: 2183027 (1939-12-01), Mayer
patent: 2197241 (1940-04-01), Hatherell
patent: 2822240 (1958-02-01), Dunn et al.
patent: 3840637 (1974-10-01), Hendwick et al.

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