Process for digesting tungsten ores containing organic matter

Details Process for digesting tungsten ores containing organic matter Process for digesting tungsten ores containing organic matter

1981-01-19

1982-08-03

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

423 53, 423 58, C01G 4100

Patent

active

043427286

ABSTRACT:
Oxide ores or ore concentrates containing organic matter are slurried with water and heated to a temperature of at least about 230.degree. C. under an oxygen partial pressure of at least about 25 psi to oxidize the organic matter. Advantageously, the process in accordance with the present invention can be used in the treatment of tungsten concentrates and can be employed while the tungsten concentrates are being digested with sodium carbonate or sodium hydroxide solutions.

REFERENCES:
patent: 2187750 (1940-01-01), Maruin
patent: 2351678 (1944-06-01), Hall
patent: 3429693 (1969-02-01), Bauer et al.
patent: 3656888 (1972-04-01), Barry et al.
patent: 3714325 (1973-01-01), Bloom et al.
patent: 4165362 (1979-08-01), Reynolds
patent: 4167555 (1979-09-01), Gomes et al.
Yih et al, "Tungsten", Plenum Press, New York, 1979, pp. 82-83.

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