| Hydrometallurgy is the main method of zinc smelting in the world today. The zinc-leached residues produced from zinc hydrometallurgy contain zinc as well as other valuable metals such as silver, lead, copper, cadmium, indium, germanium, etc. As a tailings storage, the residues not only occupy a large amount of land space, but also cause serious losses of valuable resources. In addition, the long-term storage is highly hazardous to the environment. Therefore, it is of great significance to comprehensively recover valuable metals from the zinc-leached residues. Based on the research status at home and abroad, a review was made on this aspect in the present paper, including the process mineralogical properties of the zinc-leached residues, extraction process and development trend. |
