Skip to main content
SpringerLink
Log in

Extraction and phase transformation of iron in fine-grained complex hematite ore by suspension magnetizing roasting and magnetic separation

  • Separation Technology, Thermodynamics
  • Published:
Korean Journal of Chemical Engineering Aims and scope Submit manuscript

Abstract

Suspension magnetizing roasting-magnetic separation technology was used to extract iron from fine-grained complex hematite ore. The effect of roasting conditions on the magnetizing roasting-magnetic separation process was studied. In summary, a concentrate with TFe grade of 69.96% and Fe recovery of 79.02% could be obtained under conditions of a roasting temperature of 500 °C, roasting time was 12 min, reductant concentration of 30%, and total gas flow of 200 mL/min, while TFe grade of final tailings was 5.66%. The phase composition and X-ray photoelectron spectroscopy analysis showed that hematite in the sample was transformed into magnetite during suspension magnetization roasting. After roasting, the proportion of Fe content in the phase of the magnetite increased from 5.91% in roasting feed to 97.96% in the roasting product. Transmission electron microscopy results also confirmed that hematite was transformed into magnetite with spinel structure, and the newly formed magnetite had good crystallinity. Scanning electron microscopy and BET analysis showed that roasting could increase the specific surface area, total pore volume, and porosity of the roasted product, which would strengthen the internal diffusion of CO and CO2 in the particles, to improve the reduction rate of hematite. The loose internal structure of roasted particles led to the decrease of mechanical properties, which was conducive to improving the subsequent grinding efficiency.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. S. Patra, A. Pattanaik and V. Rayasam, Can Metall Q., 58, 28 (2019).

    Article  CAS  Google Scholar 

  2. J. W. Yu, Y. X. Han, Y. J. Li, P. Gao and Y. S. Sun, Sep. Sci. Technol., 52, 1768 (2017).

    Article  CAS  Google Scholar 

  3. Y. S. Sun, X. L. Zhang, Y. X. Han and Y. J. Li, Powder Technol., 361, 571 (2020).

    Article  CAS  Google Scholar 

  4. D. Komljenovic, L. Stojanovic, V. Malbasic and A. Lukic, Int. J. Min. Sci. Technol., 30, 737 (2020).

    Article  Google Scholar 

  5. Z. Y. Lan, Z. N. Lai, Y. X. Zheng, J. F. Lv, J. Pang, J. L. Ning, J. Cent. South Univ., 27, 37 (2020).

    Article  CAS  Google Scholar 

  6. J. W. Yu, Y. X. Han, P. Gao, Y. J. Li, S. Yuan and W. B. Li, Physico-chem. Probl. Mineral Pro., 54, 668 (2018).

    CAS  Google Scholar 

  7. G. B. Abaka-Wood, M. Zanin, J. Addai-Mensah and W. Skinner, Miner. Eng., 142, 105888 (2019).

    Article  CAS  Google Scholar 

  8. J. He, L. Zhu, X. Bu, C. Liu, Z. Luo and Y. Yao, Chem. Eng. Process., 138, 27 (2019).

    Article  CAS  Google Scholar 

  9. R. M. F. Lima and F. D. V. F. Abreu, J. Mater. Res. Technol-JMRT, 9, 2021 (2020).

    Article  CAS  Google Scholar 

  10. W.-w. Wang and Z.-y. Li, Miner. Eng., 155, 106453 (2020).

    Article  CAS  Google Scholar 

  11. E. Matiolo, H. J. B. Couto, N. Lima K. Silva and A. S. de Freitas, Miner. Eng., 158, 106608 (2020).

    Article  CAS  Google Scholar 

  12. W. Li, L. Zhou, Y. Han, Y. Zhu and Y. Li, Powder Technol., 343, 270 (2019).

    Article  CAS  Google Scholar 

  13. J. F. He, C. G. Liu, J. Q. Xie, P. Hong and Y. K. Yao, Powder Technol., 319, 346 (2017).

    Article  CAS  Google Scholar 

  14. Y. Yao, Q. Bai, J. He, L. Zhu, K. Zhou and Y. Zhao, Waste Manage., 103, 218 (2020).

    Article  CAS  Google Scholar 

  15. Z. Gao, X. Chai, E. Zhou, Y. Jia, C. Duan and L. Tang, Int. J. Min. Sci. Technol., 30, 883 (2020).

    Article  Google Scholar 

  16. S. S. Rath, H. Sahoo, N. Dhawan, D. S. Rao, B. Das and B. K. Mishra, Sep. Sci. Technol., 49, 1927 (2014).

    Article  CAS  Google Scholar 

  17. F. F. Wu, Z. F. Cao, S. Wang and H. Zhong, J. Alloy. Compd., 722, 651 (2017).

    Article  CAS  Google Scholar 

  18. S. D. Lu, S. H. Ju, J. H. Peng and X. P. Zhu, High Temp. Mater. Process., 34, 147 (2015).

    CAS  Google Scholar 

  19. C. Xu, H. W. Cheng, G. S. Li, C. Y. Lu, X. G. Lu, X. L. Zou and Q. Xu, Int. J. Miner. Metall. Mater., 24, 377 (2017).

    Article  CAS  Google Scholar 

  20. Z. D. Tang, P. Gao, Y. X. Han and W. Guo, J. Min. Metall. Sect. B-Metall., 55, 295 (2019).

    Article  Google Scholar 

  21. E. Donskoi, A. F. Collings, A. Poliakov and W. J. Bruckard, Int. J. Miner. Process., 114, 80 (2012).

    Article  Google Scholar 

  22. W. Zhou, Y. Sun, Y. Han, P. Gao and Y. Li, Miner. Eng., 164, 106851 (2021).

    Article  CAS  Google Scholar 

  23. Y. Qin, Y. Han, P. Gao, Y. Li and S. Yuan, Miner. Eng., 160, 106662 (2021).

    Article  CAS  Google Scholar 

  24. Y. S. Sun, X. R. Zhu, Y. X. Han, Y. J. Li and P. Gao, J. Clean Prod., 261, 121221 (2020).

    Article  CAS  Google Scholar 

  25. Y. Li, Q. Zhang, S. Yuan and H. Yin, Powder Technol., 379, 466 (2021).

    Article  CAS  Google Scholar 

  26. P. Gao, Z. D. Tang, Y. X. Han, E. L. Li and X. L. Zhang, Powder Technol., 343, 255 (2019).

    Article  CAS  Google Scholar 

  27. Z. D. Tang, P. Gao, Y. J. Li, Y. X. Han, W. B. Li, S. Butt and Y. H. Zhang, Powder Technol., 361, 591 (2020).

    Article  CAS  Google Scholar 

  28. S. Yuan, Q. Zhang, H. Yin and Y. Li, J. Hazard. Mater., 404, 124067 (2021).

    Article  CAS  Google Scholar 

  29. H. T. B. M. Petrus, A. D. P. Putera, E. Sugiarto, I. Perdana, I. W. Warmada, F. Nurjaman, W. Astuti and A. T. Mursito, Miner. Eng., 132, 126 (2019).

    Article  CAS  Google Scholar 

  30. V. P. Ponomar, N. O. Dudchenko and A. B. Brik, Miner. Eng., 122, 277 (2018).

    Article  CAS  Google Scholar 

Download references

Acknowledgements

The authors are extremely grateful for the financial support received from the National Natural Science Foundation of China (Grant Nos. 51734005 and 51904058), the Fundamental Research Funds for the Central Universities (N2101023), and the Open Foundation of State Key Laboratory of Mineral Processing (Grant No. BGRIMM-KJSKL-2020-17).

Author information

Authors and Affiliations

  1. School of Resources and Civil Engineering, Northeastern University, Shenyang, 110819, P. R. China

    Shuai Yuan, Ruofeng Wang, Qi Zhang, Yanjun Li & Peng Gao

  2. National-Local Joint Engineering Research Center of High-efficient Exploitation Technology for Refractory Iron Ore Resources, Shenyang, 110819, P. R. China

    Shuai Yuan, Ruofeng Wang, Qi Zhang, Yanjun Li & Peng Gao

Authors
  1. Shuai Yuan
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Ruofeng Wang
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Qi Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Yanjun Li
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Peng Gao
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Qi Zhang.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Yuan, S., Wang, R., Zhang, Q. et al. Extraction and phase transformation of iron in fine-grained complex hematite ore by suspension magnetizing roasting and magnetic separation. Korean J. Chem. Eng. 39, 1891–1901 (2022). https://doi.org/10.1007/s11814-022-1116-1

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11814-022-1116-1

Keywords

Search

Navigation