Obtaining copper (I) chloride from ores with acetonitrile
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United States of America Patent
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-
Dec 29, 1981
Grant Date -
N/A
app pub date -
May 1, 1979
filing date -
May 1, 1978
priority date (Note) -
Expired
status (Latency Note)
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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.
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