Copper recovery using leach/solvent extraction ...
copper starter sheets at a current density of about 180 A/m2 with a current efficiency of 80 to 85%. The anode was 6% Sb in Pb. Design production at Ranchers was 30,000 pounds of copper daily. In its first fiscal year of operation, July 1968–June 1969, the Bluebird plant produced 9 million pounds of copper (82% of design), a remarkable ...