Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Enrichment of iron element from sulfur-containing iron tailings by S-HGMS technology

  • Zhou, Ya-qian (School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing) ;
  • Yang, Rui-ming (School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing) ;
  • Guo, Peng-hui (School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing) ;
  • Li, Su-qin (School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing) ;
  • Xing, Yi (School of Energy and Environment, University of Science and Technology Beijing)
  • Received : 2021.04.30
  • Accepted : 2021.06.28
  • Published : 2021.09.30
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Abstract

Comprehensive utilization of sulfur-containing iron tailings (SIT) not only solves environmental problems but also creates certain economic value. The iron element from SIT was enriched by the superconducting high gradient magnetic separation (S-HGMS) technology in this study. In the experiments, the total iron content (TFe) was increased from 26.3% to 60.5% with the total sulfur content (TS) of 5.9% under the optimal parameters, i.e., a magnetic flux density of 0.4 T, a slurry flow rate of 1500 mL/min. The high-quality sulfur-containing material with TFe of more than 60% was obtained, which can be used for preparing high-sulfur free cutting steel. The S-HGMS technology can realize the resource utilization of iron tailings with high added value.

Keywords

Acknowledgement

This work was supported by the National Natural Science Foundation of China (Grant No.51874039) and the National Key Research and Development Program of China (Grant No.2017YFC0210301).

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