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| Study on Pressure Acid Leaching Process of Zinc Oxide Dust Bearing Germanium |
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Received:April 19, 2018
Revised:May 11, 2018
Accepted:May 14, 2018
Published Online:May 13, 2019
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| DOI： |
| KeyWord:zinc oxide dust; germanium; zinc; sulfuric acid; pressure; leaching |
| Author | Institution |
| Fu Weiqin |
Kunming Metallurgical Research Institute |
| YANG Dajin |
Kunming Metallurgical Research Institute |
| ZOU Wei |
Kunming Metallurgical Research Institute |
| LIU Junchang |
Kunming Metallurgical Research Institute |
| MU Xingbing |
Kunming Metallurgical Research Institute |
| ZHAI Zhongbiao |
Kunming Metallurgical Research Institute |
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| Abstract: |
| The zinc oxide dust bearing germanium was treated by pressure leaching process for high-efficient leaching of germanium and zinc. The effects of leaching temperature, leaching time, oxygen pressure, sulfuric acid amount, and liquid-solid ratio on the leaching rate of germanium and zinc were studied. The experimental results show when sulfuric acid amount is 1.5 times of the theoretical quantity, liquid-solid ratio is 3∶1, leaching time is 3.0 hours, leaching temperature is 80 ℃, oxygen pressure is 800 kPa, stirring speed is 500 r/min, the germanium and zinc leaching rate can reach 75.11% and 97.21%, respectively. |
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