Removal of dissolved cadmium and copper from sulphate solution w

Details Removal of dissolved cadmium and copper from sulphate solution w Removal of dissolved cadmium and copper from sulphate solution w

1982-09-14

1983-09-20

Hearn, Brian E.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423101, 423140, 423561R, 423561B, C01G 312, C01G 1102

Patent

active

044055706

ABSTRACT:
A process for selectively removing ions of copper and/or cadmium from a sulphate solution containing nickel and/or cobalt values. The solution is treated at a temperature in the range of from about 85.degree. to about 95.degree. C. and at a pH in the range of from about 4.5 to about 5.5 with hydrogen sulphide to precipitate copper and/or cadmium ions as copper and/or cadmium sulphide, and the precipitated copper and/or cadmium sulphide is separated from the solution.

REFERENCES:
patent: 1334720 (1920-03-01), Thompson
patent: 2755172 (1956-07-01), McGauley
patent: 2915388 (1959-12-01), Lyle
patent: 3218161 (1965-11-01), Kunda
patent: 3980752 (1976-09-01), Fekete
patent: 4073860 (1978-02-01), Huggins
patent: 4123499 (1978-10-01), Welsh
patent: 4231993 (1980-11-01), Sandberg
patent: 4278539 (1981-07-01), Santhanam
Skoog Fundamentals of Analytical Chemistry, Holt, Rinehart, Winston, N.Y. (1963) pp. 747 748.
Hillebrand, Applied Inorganic Analysis, 2nd Ed., John Wiley & Sons, N.Y. (1953) pp. 58-61.

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