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Volume 25 Issue 2
Feb.  2018
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文章导航 >  矿物冶金与材料学报（英文）  > 2018  >  25(2): 123-130
Ya-yun Wang, Hui-fen Yang, Bo Jiang, Rong-long Song,  and Wei-hao Zhang, Comprehensive recovery of lead, zinc, and iron from hazardous jarosite residues using direct reduction followed by magnetic separation, Int. J. Miner. Metall. Mater., 25(2018), No. 2, pp. 123-130. https://doi.org/10.1007/s12613-018-1555-1
Cite this article as:
Ya-yun Wang, Hui-fen Yang, Bo Jiang, Rong-long Song,  and Wei-hao Zhang, Comprehensive recovery of lead, zinc, and iron from hazardous jarosite residues using direct reduction followed by magnetic separation, Int. J. Miner. Metall. Mater., 25(2018), No. 2, pp. 123-130. https://doi.org/10.1007/s12613-018-1555-1
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研究论文

Comprehensive recovery of lead, zinc, and iron from hazardous jarosite residues using direct reduction followed by magnetic separation

  • Key Laboratory for High-Efficient Mining and Safety of Metal Mines of Ministry of Education, University of Science and Technology Beijing, Beijing 100083, China

  • School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China

  • 通讯作者:

    Hui-fen Yang    E-mail: yanghf@ustb.edu.cn

  • Lead, zinc, and iron were recovered from jarosite residues using direct reduction followed by magnetic separation. The influence of the coal dosage, reduction temperature, and reduction time on the volatilization rates of lead and zinc and the metallization rate of iron were investigated. The results show that the volatilization rates of lead and zinc were 96.97% and 99.89%, respectively, and the iron metallization rate was 91.97% under the optimal reduction roasting conditions of a coal dosage of 25.0wt% and reduction roasting at 1250℃ for 60 min. The magnetic concentrate with an iron content of 90.59wt% and an iron recovery rate of 50.87% was obtained under the optimum conditions in which 96.56% of the reduction product particles were smaller than 37 μm and the magnetic field strength was 24 kA/m. Therefore, the results of this study demonstrate that recovering valuable metals such as lead, zinc, and iron from jarosite residues is feasible using the developed approach.
    • Research Article

    Comprehensive recovery of lead, zinc, and iron from hazardous jarosite residues using direct reduction followed by magnetic separation

    + Author Affiliations
      Abstract
    • Lead, zinc, and iron were recovered from jarosite residues using direct reduction followed by magnetic separation. The influence of the coal dosage, reduction temperature, and reduction time on the volatilization rates of lead and zinc and the metallization rate of iron were investigated. The results show that the volatilization rates of lead and zinc were 96.97% and 99.89%, respectively, and the iron metallization rate was 91.97% under the optimal reduction roasting conditions of a coal dosage of 25.0wt% and reduction roasting at 1250℃ for 60 min. The magnetic concentrate with an iron content of 90.59wt% and an iron recovery rate of 50.87% was obtained under the optimum conditions in which 96.56% of the reduction product particles were smaller than 37 μm and the magnetic field strength was 24 kA/m. Therefore, the results of this study demonstrate that recovering valuable metals such as lead, zinc, and iron from jarosite residues is feasible using the developed approach.
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