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| Study on Pressure Leaching of Mixture of Calcine with Low-Selenium and Low-Nickel Bearing Copper Anode Mud |
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Received:March 27, 2019
Revised:April 09, 2019
Accepted:April 09, 2019
Published Online:September 23, 2019
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| DOI：doi：10.3969/j.issn.1007-7545.2019.10.013 |
| KeyWord:calcine; copper anode mud; mixing; pressure leaching; Te; Ag; Se |
| Author | Institution |
| Chen Zhiyu |
金川集团铜业公司 |
| PAN Congming |
金川集团铜业公司 |
| Du Yanjun |
金川集团铜业公司 |
| Zhang Yan |
金川集团铜业公司 |
| YAN Yan |
金川集团营销公司 |
| ZHANG Xiaokai |
金川集团铜业公司 |
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| Abstract: |
| New technology of pressure leaching of mixed materials of calcine produced by high-nickel and high-selenium copper anode mud roasting in rotary kiln and low-nickel and low selenium copper anode mud was studied. Effects of mixture ratio, leaching acidity, temperature, pressure, time, and L/S on leaching rates of Ni, Cu, Te, Ag, Se pressure leaching process were investigated. The results show that selenium and silver in mixture are effectively inhibited with high leaching rates of Ni, Cu and Te and low tellurium content in leaching residue under the conditions including mass ratio of calcine and copper anode mud of 1︰2, leaching acidity of 100-120 g/L, temperature of 160-170 ℃, pressure of autoclave of 0.8 MPa, L/S of 4︰1, and reaction time of 5 h. This new technology is successfully applied to production practice. |
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