Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4769108 | Hydrometallurgy | 2016 | 15 Pages |
Abstract
Most Cu, Te, Sb and precious metals in copper anode slime were enriched in residue using an alkali fusion-leaching process. In this paper, Cu and Te were extracted from the residue by acid leaching and Sb was separated by sulfide leaching. It was found that 96.2% Cu and 83.5% Te were extracted into leaching solution under the optimum conditions: 1 mol/L of H2SO4 concentration, 6% of NaCl addition, 20 °C of leaching temperature and 20 min of leaching time. 86.8% Sb was extracted when Na2S concentration, leaching temperature and leaching time were determined at 90 g/L, 80 °C and 40 min, respectively. Chemical analysis indicated that Ag, Pb and Au were enriched in the sulfide leaching residue, which could be processed to recover precious metals.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Dong Li, Xueyi Guo, Zhipeng Xu, Runze Xu, Qiming Feng,