C - Chemistry – Metallurgy – 01 – G
Patent
C - Chemistry, Metallurgy
01
G
23/156, 53/287
C01G 3/05 (2006.01) C01G 3/00 (2006.01) C22B 3/26 (2006.01) C22B 15/00 (2006.01)
Patent
CA 1158051
ABSTRACT OF DISCLOSURE 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 utilising 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.
326728
Grimsey Eric J.
Muir David M.
Parker Alan J.
Preston John S.
Anumin Pty Ltd.
Mitches & Co.
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