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| Recovery of Copper and Cobalt from Cobalt-bearing Copper Sulphide Ore Smelting Slag by Reduction Matte Smelting |
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Received:September 02, 2014
Revised:September 04, 2014
Accepted:September 05, 2014
Published Online:December 24, 2014
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| DOI：10.3969/j.issn.1007-7545.2015.01.001 |
| KeyWord:cobalt-bearing copper sulphide ore; reduction matte smelting; copper-cobalt matte; cleaned slag; recovery |
| Author | Institution |
| TANG Chao-bo |
冶金与环境学院 |
| LI Yun |
冶金与环境学院 |
| YANG Sheng-hai |
冶金与环境学院 |
| CHEN Yong-ming |
冶金与环境学院 |
| YE Long-gang |
冶金与环境学院 |
| ZHANG Wen-hai |
中国瑞林工程技术有限公司 |
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| Abstract: |
| The feasibility of a new process to smelt cobalt-bearing copper sulphide ore was verified by experiment. The effects of dosage of reduction agent (coke) and sulfurizing agent (pyrite), smelting temperature and holding time on recovery of copper and cobalt during matte smelting process were investigated. The results show that content of copper and cobalt in waste slag drops to 0.12% and 0.074% respectively with recovery of copper and cobalt in copper-cobalt matte of 92.95% and 89.95% respectively under the optimum conditions including dosage of coke and pyrite of 6% and 20% (mass fraction of smelting slag) respectively. The main phases of waste slag are Fe2SiO4 and Fe3O4. The main phases of copper-cobalt matte are FeS, Fe0.92Co0.08S and Cu8S5. |
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