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| Study on Oxidation Acidity Leaching of Dust of Electrostatic Precipitator of Arsenic-bearing Auricupride Smelting |
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Received:October 16, 2020
Revised:October 20, 2020
Accepted:October 25, 2020
Published Online:January 21, 2021
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| DOI：doi：10.3969/j.issn.1007-7545.2021.02.005 |
| KeyWord:copper smelting; dust of electrostatic precipitator; oxidant; copper; arsenic |
| Author | Institution |
| ZHANG Jun-feng |
中南大学，山东恒邦冶炼股份有限公司 |
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| Abstract: |
| Dust of electrostatic precipitator of arsenic-bearing auricupride smelting is an intermediate product produced by copper smelting workshop. It is a typical hazardous waste due to its complex composition and difficult to treat. Dust of electrostatic precipitator from a smelting company in Shandong province was oxidation acidity leached with hydrogen peroxide as oxidant. The results show that leaching rate of copper and arsenic is 92.30% and 87.50% above respectively under the optimum conditions including dosage of hydrogen peroxide of 120 kg/t, leaching time of 2 h, leaching temperature of 80 ℃, and acidity of 60 g/L. It provides a new approach for copper smelting companies to deal with dust of electrostatic precipitator by hydrometallurgical process. |
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