Process for extracting cobalt, copper or zinc values using a 1-a

Details Process for extracting cobalt, copper or zinc values using a 1-a Process for extracting cobalt, copper or zinc values using a 1-a

1976-06-01

1977-08-02

Vertiz, O. R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423100, 423139, 260299, C01G 300, C07F 108, C01G 900, C01G 5100

Patent

active

040396126

ABSTRACT:
Optionally substituted benzimidazoles containing an alkyl or cycloalkyl group in position 1 and containing at least 5 alkyl or cycloalkyl carbon atoms extract metals from aqueous solutions of their salts into water-immiscible organic solvents in presence of halide ion. Benzimidazoles having a branched-chain alkyl group of at least 7 carbon atoms in position 1, and especially mixtures of such compounds, are most effective. The benzimidazoles are particularly useful for extracting cobalt selectively from mixtures of cobalt and nickel salts. The metals can be recovered from the organic solvent by extraction into water free from halide ion.

REFERENCES:
patent: 2065418 (1936-12-01), Andersag et al.
patent: 3131998 (1964-05-01), Swanson
patent: 3843667 (1974-10-01), Cupery
Durdyev, Chemical Abstracts, vol. 77 (1972) 42,746t.
Artemenko et al., Chemical Abstracts, vol. 76 (1972) 80,389r.
Hoffman, K. Imidazole and its Derivatives, Interscience N.Y. (1953) pp. 21, 247-250, 379-382, 388.
Bose et al., J. Inorg. Nucl. Chem., (1971) vol. 33, pp. 755, 756.

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