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| Experimental Study on Oxidative Acid Leaching of High Cadmium Dust |
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Received:July 22, 2021
Revised:July 27, 2021
Accepted:August 02, 2021
Published Online:October 20, 2021
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| DOI：doi：10.3969/j.issn.1007-7545.2021.11.004 |
| KeyWord:dust; cadmium; zinc; oxidizing leaching; sulfuric acid |
| Author | Institution |
| FU Wei-qin |
昆明冶金研究院有限公司 |
| LIU Jun-chang |
昆明冶金研究院有限公司 |
| ZOU Wei |
昆明冶金研究院有限公司 |
| ZHANG Te |
云南驰宏锌锗股份有限公司 |
| MU Xing-bing |
昆明冶金研究院有限公司 |
| ZHAI Zhong-biao |
昆明冶金研究院有限公司 |
| XIE Tian-jian |
昆明冶金研究院有限公司 |
| WANG Kun |
昆明冶金研究院有限公司 |
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| Abstract: |
| Zinc and cadmium were efficiently leached from high cadmium dust by oxidative acid leaching process. Effects of hydrogen peroxide dosage, leaching temperature, leaching time, L/S, and sulfuric acid concentration on leaching rate of zinc and cadmium were studied. The results show that leaching rate of zinc and cadmium is 93.50% and 95.97% respectively under the optimum conditions including sulfuric acid concentration of 50 g/L, hydrogen peroxide dosage of 60 g/L, L/S of 3 mL/g, leaching temperature of 80 ℃, and leaching time of 2.0 h. |
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