Process of producing copper hydroxide

Details Process of producing copper hydroxide Process of producing copper hydroxide

C - Chemistry, Metallurgy

01

G

23/272

C01G 3/02 (2006.01)

Patent

CA 1311905

ABSTRACT In a process of producing blue copper hydroxide, wherein copper metal is treated with an ammonium ion-con- taining aqueous solution with stirring and with a simulta- neous introduction of an oxygen-containing gas and the re- action product is separated from the copper metal, a parti- culate, floatable copper (II) hydroxide is produced in that a material which contains copper metal is treated at a tem- perature of 0 to 40°C with a solution which contains 0.1 to 10 g/l ammonium salt (calculated as NH4), 0 to 10 g/1 ammonium hydroxide (calculated as NH3) and, if desired, 0 to 5 g/l copper (II) salt and the resulting copper (II) hydroxide is separated.

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