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| Separation and Recovery of Selenium and Tellurium from Refractory Precious Metal Acidic Mud |
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Received:September 30, 2019
Revised:October 17, 2019
Accepted:October 17, 2019
Published Online:January 16, 2020
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| DOI：doi：10.3969/j.issn.1007-7545.2020.02.012 |
| KeyWord:precious metal acidic mud; alkali leaching; neutralization; selenium; tellurium |
| Author | Institution |
| CHEN Zhiyu |
金川集团铜业公司 |
| PAN Congming |
金川集团铜业公司 |
| JI Ting |
金川集团铜业公司 |
| ZHAO Zhenzhong |
金川集团铜业公司 |
| XU Li |
金川集团铜业公司 |
| ZHANG Xiaokai |
金川集团铜业公司 |
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| Abstract: |
| A novel process to separate selenium and tellurium from precious metal acidic mud was put forward. Leaching rate of tellurium and selenium by alkali leaching is 77.7% and 38.78% respectively. During neutralization process, tellurium content in neutralization slag is 72.88% with tellurium precipitation rate of 98%, and selenium leaching rate is only 4.3%. In reduction process, reduction efficiency is 99% above, and selenium content in crude selenium product is 81.55%. |
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