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| Iron Recovery from Copper Tailings of Copper Smelting Slag with Reduction Roasting and Magnetic Separation |
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Received:December 09, 2015
Revised:December 15, 2015
Accepted:December 21, 2015
Published Online:June 27, 2016
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| DOI：doi：10.3969/j.issn.1007-7545.2016.07.004 |
| KeyWord:copper smelting slag; reduction roasting; magnetic separation; iron; recovery |
| Author | Institution |
| ZHU Mao-lan |
江西理工大学应用科学学院 |
| XIONG Jia-chun |
江西理工大学冶金与化学工程学院 |
| HU Zhi-biao |
龙岩学院化学与材料学院 |
| TONG Chang-qing |
龙岩学院化学与材料学院 |
| WANG Rui-xiang |
江西理工大学冶金与化学工程学院 |
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| Abstract: |
| Iron was recovered from copper tailings of copper smelting slag by reduction roasting and magnetic separation with powdered carbon as reductant. Effect of parameters on iron recovery was investigated and verified with experiments. The results show that content of iron in magnetic concentrate is 92.16% and that of iron in gangue drops to 3.91% with iron recovery of 87.65% under the optimum conditions including dosage of carbon powder and CaO of 25% and 10% of slag amount respectively, roasting temperature of 1 300 ℃, roasting time of 1.5 h, and size of roasted product of -0.074 mm of 55%. |
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