Experimental Research on Recovery Copper and Iron from Copper Smelting Slags by Direct Reduction Roasting-magnetic Separation

LI Xiaobo; XU Hao; LI Guodong; XU Baojin; XU Shasha

doi:10.3969/j.issn.1000-6532.2024.04.018

2024 No. 4

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Article navigation > Multipurpose Utilization of Mineral Resources > 2024 > 45(4): 123-127, 133

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LI Xiaobo, XU Hao, LI Guodong, XU Baojin, XU Shasha. Experimental Research on Recovery Copper and Iron from Copper Smelting Slags by Direct Reduction Roasting-magnetic Separation[J]. Multipurpose Utilization of Mineral Resources, 2024, 45(4): 123-127, 133. doi: 10.3969/j.issn.1000-6532.2024.04.018

Citation:

LI Xiaobo, XU Hao, LI Guodong, XU Baojin, XU Shasha. Experimental Research on Recovery Copper and Iron from Copper Smelting Slags by Direct Reduction Roasting-magnetic Separation[J]. Multipurpose Utilization of Mineral Resources, 2024, 45(4): 123-127, 133. doi: 10.3969/j.issn.1000-6532.2024.04.018

Experimental Research on Recovery Copper and Iron from Copper Smelting Slags by Direct Reduction Roasting-magnetic Separation

1.
School of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China
2.
Jiangxi Key Laboratory of Mining Engineering, Ganzhou 341000, Jiangxi, China
3.
Northwest Institute of Mining and Metallurgy, Baiyin 730900, Gansu, China
4.
Ma’anshan Iron and Steel Group Luohua Mining Limited Liability Company, Hefei 231562, Anhui, China)

Received Date: 23 September 2022

Publish Date: 25 August 2024

Abstract

Abstract

This is an article in the field of metallurgical engineering. Torecover copper and iron from a copper smelting slag flotation tailingwith iron grade of 37.42% and copper grade of 1.86%, according to the characteristics of its ore properties, the bituminous coal was used as a reductant, the process of direct reduction roasting - magnetic separation was applied.The experimental results show that copper smelting slag, bitumite and quicklime (as a co-reducing agent) are mixed in the mass ratio of 100∶25∶20, and at the conditions of roasting temperature of 1 200 ℃, time of 80 min, the roasted ores gringding fineness of -0.045 mm 80%, and magnetic strength of 0.139 T, the copper-bearing iron ore concentrate can be obtained with an iron grade of 90.98%, iron recovery of 90.13%, copper grade of 5.82% and copper recovery of 87.38%, thus realizing the comprehensive recovery of copper and iron from copper smelting slags.
- Metallurgical engineering /
- Copper smelting slags /
- Restore the roasting process /
- Magnetic separation /
- Comprehensive recovery

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References

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