| |
Extractive metallurgy of nonferrous metals
Tomina V.N., Khrennikov A.A., Lebed A.B., Naboichenko S.S. Heap leaching of copper from ore of the “Volkovskoe” deposit
Heap leaching of oxidized, mixed, and dump copper ores from the “Volkovskoe” deposit is considered. Based on the investigation results, preliminary granulation of crushed ore with sulfuric acid (2575 kg/t ore) is recommended. Introduction of this operation results in reduction of the leaching duration by 15–30 % and allows production of more concentrated solution by copper. Extraction of copper into the solution for 90–100 days amounted to 65?72 % from dump ore, 76–78 % from oxidized ore, and ... |
 |