Recovery of chromium values

Details Recovery of chromium values Recovery of chromium values

1976-02-19

1977-06-14

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

423 49, 423 52, 423 57, 75115, 75116, C01G 3700

Patent

active

040297349

ABSTRACT:
Chromium values may be recovered from the chromium bearing ores or sources by subjecting the chromium bearing source to a roast in the presence of sulfuric acid and an oxidant which contains manganese compounds at temperatures ranging from about 200.degree. to about 500.degree. C. followed by leaching, separation and solvent or ion exchange extraction whereby chromium is selectively extracted and recovered.

REFERENCES:
patent: 1279110 (1918-09-01), Haslup
patent: 2176774 (1939-10-01), Sweet et al.
patent: 2601306 (1952-06-01), Lloyd et al.
patent: 3082080 (1963-03-01), Simons
patent: 3085875 (1963-04-01), McCarroll
patent: 3106451 (1963-10-01), Globus
patent: 3244513 (1966-04-01), Zubryckyj et al.
patent: 3906075 (1975-09-01), Menz
Adam et al., "Talanta," vol. 18, 1971, pp. 91-95.

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