Inventors:
Robert C. Emmett - Salt Lake City UT
James K. Dicksa - Antioch CA
Bruce C. Wojcik - Salt Lake City UT
Frank A. Baczek - Sandy UT
Assignee:
Envirotech Corporation - Menlo Park CA
International Classification:
C25C 112
C25C 700
C01G 300
Abstract:
Apparatus and process for continuous electrowinning of copper bearing slurries, including an electrowinning cell wherein a slurry composed of a suitable electrolyte and a copper-bearing solid material, is subjected to the simultaneous reactions of dissolving the copper material and plating out elemental copper as a relatively pure copper product. The apparatus and process also includes means to purify the copper-bearing material before passage to the electrowinning cell so as to prevent contamination of the electrolyte in the cell and, also, a means to recover sulfur which is released during the electrowinning and unreacted copper material.