Iron Recovery from Tailings of the Smelting Slag after Copper Flotation with Magnetic Separation-reverse Flotation

LI Jialin; YAN Xiaohu

doi:10.13779/j.cnki.issn1001-0076.2022.03.019

2022 Vol. 42, No. 3

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Article navigation > Conservation and Utilization of Mineral Resources > 2022 > 42(3): 142-145

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LI Jialin, YAN Xiaohu. Iron Recovery from Tailings of the Smelting Slag after Copper Flotation with Magnetic Separation-reverse Flotation[J]. Conservation and Utilization of Mineral Resources, 2022, 42(3): 142-145. doi: 10.13779/j.cnki.issn1001-0076.2022.03.019

Citation:

LI Jialin, YAN Xiaohu. Iron Recovery from Tailings of the Smelting Slag after Copper Flotation with Magnetic Separation-reverse Flotation[J]. Conservation and Utilization of Mineral Resources, 2022, 42(3): 142-145. doi: 10.13779/j.cnki.issn1001-0076.2022.03.019

Iron Recovery from Tailings of the Smelting Slag after Copper Flotation with Magnetic Separation-reverse Flotation

Changsha Research Institute of Mining and Metallurgy Co., Ltd, Changsha 410012, China

Received Date: 13 March 2022

Publish Date: 25 June 2022

Abstract

Abstract

In order to recover iron from tailings of the smelting slag after copper flotation, the separation process of grinding- low magnetic separation-reverse flotation was carried out based on the process mineralogy research results. The results showed that the iron content in the sample was as high as 47.14%. The distribution rate of iron in the magnetite form and in the iron-containing silicate form were 53.01% and 44.38%, respectively. When the grinding fineness was 95.31%(-0.030 mm) and the the separation process of grinding- low magnetic separation-reverse flotation was carried out, the iron concentrate was obtained with yield of 35.51%, TFe grade of 62.71% and iron recovery of 47.03%. Tailings can be sold as iron conditioner for cement industry. Finally, the comprehensive recovery and tailless discharge of iron in the smelting slag would be realized.
- copper smelting slag /
- beneficiation /
- magnetic separation /
- reverse flotation /
- comprehensive recovery

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References

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