|
| Practice of Comprehensive Recovery of Cadmium-bearing Alkali Residue in Zinc Hydrometallurgy |
|
Received:February 11, 2022
Revised:March 02, 2022
Accepted:March 03, 2022
Published Online:August 11, 2022
|
| View Full Text View/Add Comment Download reader |
| DOI：doi：10.3969/j.issn.1007-7545.2022.09.014 |
| KeyWord:zinc hydrometallurgy; cadmium alkali residue; high temperature and high acid oxidation leaching; comprehensive recovery; Zn;Cd |
| Author | Institution |
| WANG Xin |
甘肃厂坝有色金属有限责任公司成州冶炼厂 |
| GONG Yan-fei |
甘肃厂坝有色金属有限责任公司成州冶炼厂 |
| JIN Zhong |
甘肃厂坝有色金属有限责任公司成州冶炼厂 |
| WANG Hong-ji |
甘肃厂坝有色金属有限责任公司成州冶炼厂 |
| WANG Zhang-bin |
甘肃厂坝有色金属有限责任公司成州冶炼厂 |
| JIAO Xiao-bin |
白银有色集团股份有限公司 甘肃 白银 |
| LI Yin-li |
西北矿冶研究院 甘肃 白银 |
| LU Xing-wu |
西北矿冶研究院 甘肃 白银 |
| LI Yan-long |
西北矿冶研究院 甘肃 白银 |
|
| Hits: 1777 |
| Download times: 1819 |
| Abstract: |
| Alkaline residue from production of crude cadmium in purification process of zinc hydrometallurgy was treated by high temperature and high acid oxidation leaching. A comparison was made between "electrolytic solution + manganese powder oxidation leaching" and "electrolytic solution direct leaching", the following technological parameters of high temperature and high acid oxidation leaching were as follows: leaching temperature of 85-90 ℃, leaching time of 8 h above, and mass ratio of liquid to solid of about 4 g/g, as a result, leaching rates of zinc and cadmium is 96.88% and 95.35%, respectively. Through industrial practice, the effective treatment of cadmium alkali slag stored in a zinc smelter for a long time can realize recovery of valuable metals such as zinc and cadmium, improve metal recovery rate, and avoid environmental protection risk caused by long-term stockpiling of cadmium-bearing slag, which has good economic and environmental benefits. |
| Close |