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| Selective Wet Removal of Arsenic and Simultaneous Recovery of Valuable Elements from Copper Smelting Dust |
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Received:November 24, 2022
Revised:December 05, 2022
Accepted:December 06, 2022
Published Online:March 17, 2023
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| DOI：doi：10.3969/j.issn.1007-7545.2023.04.002 |
| KeyWord:arsenic; leaching; copper smelting; arsenic-bearing dust |
| Author | Institution |
| CHI Xiao-peng |
福州大学紫金地质与矿业学院;福建省新能源金属绿色提取与高值利用重点实验室 |
| XU Jia-yan |
福州大学紫金地质与矿业学院;福建省新能源金属绿色提取与高值利用重点实验室 |
| WENG Wei |
福州大学紫金地质与矿业学院;福建省新能源金属绿色提取与高值利用重点实验室 |
| TAN Wen |
福州大学紫金地质与矿业学院;福建省新能源金属绿色提取与高值利用重点实验室 |
| ZHONG Shui-ping |
福州大学紫金地质与矿业学院;福建省新能源金属绿色提取与高值利用重点实验室;紫金矿业集团股份有限公司 |
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| Abstract: |
| Address to difficulty to efficient enrichment and removal of arsenic from arsenic-bearing dust in copper smelting system, a two-step leaching process of water leaching and alkali leaching of arsenic removal from arsenic-bearing dust was studied. The results show that final arsenic leaching rate is 95.61% and arsenic content in leaching slag is less than 0.5%, and the leaching rate of Cu, Fe, Zn and Pb is 0.01%, 0.02%, 6.21% and 10.77%, respectively, when the arsenic-bearing dust is leached by water at room temperature with ratio of liquid to solid of 1︰1 and then alkali leached under the conditions including NaOH concentration of 2 mol/L, Na2S concentration of 0.2 mol/L, temperature of 70 ℃, and ratio of liquid to solid of 4︰1. |
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