Process for producing copper hydroxide

Details Process for producing copper hydroxide Process for producing copper hydroxide

1988-05-18

1990-07-31

Stoll, Robert L.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C01G 302

Patent

active

049449354

ABSTRACT:
A process of producing blue copper hydroxide, wherein copper metal is treated with an ammonium ion-containing aqueous solution with stirring and with a simultaneous introduction of an oxygen-containing gas and the reaction product is separated from the copper metal. A particulate, floatable copper (II) hydroxide is produced in that a material which contains copper metal is treated at a temperature of 0.degree. to 40.degree. with a solution which contains 0.1 to 10 g/l ammonium salt (calculated as NH.sub.4), 0 to 10 g/l ammonium hydroxide (calculated NH.sub.3) and, if desired, 0 to 5 g/l copper (II) salt and the resulting copper (II) hydroxide is separated.

REFERENCES:
patent: 2474497 (1949-06-01), Rowe
patent: 2536096 (1951-01-01), Rowe
patent: 2647829 (1953-08-01), McGauley et al.
patent: 2670273 (1954-02-01), Munn
patent: 3971652 (1976-07-01), Bryson
Masterton, William L., and Slowinski, Emil J., Chemical Principles, 4th Ed. Saunders Golden Sunburst Series, Philadelphia, Penn., 1977, p. 453.

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