Document Type and Number:
Japanese Patent JPS6312149
Kind Code:
B2
Abstract:
PURPOSE:To separate and to recover the copper and lead in speiss efficiently by performing electrolysis in a selected aqueous acid soln. by using the speiss at the anode. CONSTITUTION:The copper and lead in the copper-contg. speiss byproduced in a lead refining process exist in the form of copper arsenide, metallic copper, metallic lead, etc. With said speiss as the anode, electrolysis is performed in an aqueous sulfuric acid soln. wherein an acid other than sulfuric acid which elutes lead, for example, a nitric acid exists. Thereby, copper is electrodeposited on the cathode side, and lead is settled as lead sulfate. At this time, the eluted lead ions react with the sulfuric acid to form lead sulfate without sticking to the anode, and settles in the soln.; therefore the anode does not reduced to non-conducting.
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Inventors:
ABE HIDEKI
KIMURA MITSUHO
KIMURA MITSUHO
Application Number:
JP7578180A
Publication Date:
March 17, 1988
Filing Date:
June 05, 1980
Export Citation:
Assignee:
DOWA MINING CO
International Classes:
C22B13/00; C22B3/00; C22B3/04; C22B7/00; C25C1/12