Study on Process Mineralogy and Iron Separation Technology by Step Milling-Magnetic Separation

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Authors

  • Liqun Luo
     College of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070 ,CN
  • Sen Tian
     State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044 ,CN
  • Qiang Wu
     Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang, Sichuan 621010 ,CN
  • Zhiqiang Chen
     Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang, Sichuan 621010 ,CN
  • Tiefeng Peng
     Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang, Sichuan 621010 ,CN

Keywords:

Poor magnetite; iron grade; magnetic analysis; iron selection test; iron recovery rate; dry magnetic separation.

Abstract

The main mineral in the iron ore from Hubei was poor magnetite, it has fine granularity and low iron grade. The content of total iron (TFe) in the original ore is from 12% to 20%, and the content of magnetic iron (MFe) was from 6% to 13%. Through the process mineralogy research, crushing product sieving, magnetic analysis and grinding granularity test, the iron ore products with an iron concentrate grade of 68.84% and an iron recovery rate of 72.87% can be obtained. In the study, it was found that the iron grade of the original ore and the magnetic iron (MFe) were 12.11% and 16.34% respectively. The iron grade of ore size of -0.074 mm was low in negative cumulative and positive cumulative analysis. The iron recovery rate was relatively low, i.e., 57.89%, this was due to that 19.89% of the ferric silicate in the sample of the raw ore cannot be recovered. Through dry magnetic separation, the iron grade can be raised to about 2.18%.

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Published

2022-10-20

How to Cite

Luo, L., Tian, S., Wu, Q., Chen, Z., & Peng, T. (2022). Study on Process Mineralogy and Iron Separation Technology by Step Milling-Magnetic Separation. Journal of Mines, Metals and Fuels, 67(3), 120–126. Retrieved from https://informaticsjournals.com/index.php/jmmf/article/view/31504

Issue

Volume 67, Issue 3, March 2019

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

 

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