Obtaining copper (I) chloride from ores with acetonitrile

Details Obtaining copper (I) chloride from ores with acetonitrile Obtaining copper (I) chloride from ores with acetonitrile

1979-05-01

1981-12-29

Hearn, Brian E.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423 34, 423 38, 423 42, 423493, 804107, C01G 305

Patent

active

043082394

ABSTRACT:
Cuprous (Copper (I)) chloride is an intermediate for the production of copper metal concentrates. A method of purifying copper salts and particularly cuprous chloride is disclosed which involves utilizing the solubility of cuprous chloride and other copper salts in a mixture of water and acetonitrile of 2-hydroxycyanoethane or acrylonitrile and the ability of cuprous chloride to precipitate when the organic component of the mixture is distilled off. The electrolysis of cuprous chloride in water containing at least 10 grams per litre of copper (I), acid and between 5% and 50% by volume of a water soluble organic nitrile such as acetonitrile or 2-hydroxycyanoethane is also disclosed.

REFERENCES:
patent: 3865744 (1975-02-01), Parker et al.
patent: 3937657 (1976-02-01), Parker et al.
patent: 3961028 (1976-06-01), Parker et al.
patent: 3966890 (1976-06-01), Parker et al.
patent: 4070183 (1978-01-01), Parker et al.
patent: 4113848 (1978-09-01), Parker et al.
Sigal et al., "Increasing the Solubility of Copper Monochloride in Chloride Solutions By SomeOrganic Additions", Ivestiva Vysshikh Uchebuykh Zavedenii Khim i Khim Tekh., vol. 18(9), (1975), pp. 1357-1359.
Recovery of Copper, Iron, and Sulfur from Chalcopyrite Concentrate Using a Ferric Chloride Leach, Haver et al., Feb. 1971 - Journal of Metals - pp. 25-29.
Hydrometallurgy for Copper Concentrates?- Dasher et al. - Oct. 2-3, 1972 - pp 1-15 w/footnotes.

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