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| Study on Pressure Leaching of Copper Converter White Dust |
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Received:October 17, 2017
Revised:October 17, 2017
Accepted:October 23, 2017
Published Online:March 20, 2018
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| DOI：doi：10.3969/j.issn.1007-7545.2018.04.002 |
| KeyWord:white dust; pressure leaching; copper; arsenic; iron |
| Author | Institution |
| LIU Fei |
江西铜业集团公司贵溪冶炼厂 |
| HONG Yu-min |
江西铜业集团公司贵溪冶炼厂 |
| ZHAO Lei |
北京矿冶研究总院 |
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| Abstract: |
| To realize comprehensive utilization of valuable metals in copper converter white dust, pressure leaching process was carried out. The results show that leaching rate of metals is Cu>95%, Zn>95%, Cd>90%, As<10%, Fe<10% under the optimum conditions including L/S of 6︰1(mg/L), initial sulfuric acid concentration of 0.6 mol/L, leaching temperature of 120 ℃, oxygen partial pressure of 0.6 MPa, leaching time of 3 h, and stirring speed of 500 r/min. Valuable elements of copper, zinc and cadmium can be effectively separated from impurities of arsenic and iron which facilitates separation of valuable metals in lixivium. |
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