Skip to main content
SpringerLink
Log in

Strengthening iron enrichment and dephosphorization of high-phosphorus oolitic hematite using high-temperature pretreatment

  • Published:
International Journal of Minerals, Metallurgy and Materials Aims and scope Submit manuscript

Abstract

The efficient development and utilization of high-phosphorus oolitic hematite is of great strategic significance for the sustainable supply of iron-ore resources in China. In this paper, the mechanism of high-temperature pretreatment for enhancing the effect of iron enrichment and dephosphorization in the magnetization roasting-leaching process was studied by X-ray diffraction (XRD), vibration sample magnetometer (VSM), scanning electron microscopy and energy dispersive spectrometry (SEM-EDS). Compared with the process without high-temperature pretreatment, the iron grade of the magnetic separation concentrate after high-temperature pretreatment had increased by 0.98%, iron recovery rate had increased by 1.33%, and the phosphorus content in the leached residue had decreased by 0.12%. High-temperature pretreatment resulted in the dehydration and decomposition of hydroxyapatite, the dehydration of limonite and the thermal decomposition of siderite, which can produce pores and cracks and weaken the compactness of the ore, improve the magnetization characteristics of roasted ore, and strengthen the iron enrichment and dephosphorization during the magnetization roasting and leaching process.

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. Y.L. Li, T.C. Sun, A.H. Zou, and C.Y. Xu, Effect of coal levels during direct reduction roasting of high phosphorus oolitic hematite ore in a tunnel kiln, Int. J. Min. Sci. Technol., 22(2012), No. 3, p. 323.

    Article  CAS  Google Scholar 

  2. H.Q. Tang, L. Ma, J.W. Wang, and Z.C. Guo, Slag/metal separation process of gas-reduced oolitic high-phosphorus iron ore fines, J. Iron Steel Res. Int., 21(2014), No. 11, p. 1009.

    Article  CAS  Google Scholar 

  3. Y.S. Sun, Y.F. Li, Y.X. Han, and Y.J. Li, Migration behaviors and kinetics of phosphorus during coal-based reduction of high-phosphorus oolitic iron ore, Int. J. Miner. Metall. Mater, 26(2019), No. 8, p. 938.

    Article  Google Scholar 

  4. H.Q. Tang, Y.Q. Qin, T.F. Qi, Z.L. Dong, and Q.G. Xue, Application of wood char in processing oolitic high-phosphorus hematite for phosphorus removal, J. Iron Steel Res. Int., 23(2016), No. 2, p. 109.

    Article  Google Scholar 

  5. W. Yu, Q.Y. Tang, J.A. Chen, and T.C. Sun, Thermodynamic analysis of the carbothermic reduction of a high-phosphorus oolitic iron ore by Factsage, Int. J. Miner. Metall. Mater, 23(2016), No. 10, p. 1126.

    Article  CAS  Google Scholar 

  6. K. Ionkov, S. Gaydardzhiev, A.C. de Araujo, D. Bastin, and M. Lacoste, Amenability for processing of oolitic iron ore concentrate for phosphorus removal, Miner. Eng., 46–47(2013), p. 119.

    Article  Google Scholar 

  7. Y.S. Sun, Y.X. Han, Y.F. Li, and Y.J. Li, Formation and characterization of metallic iron grains in coal-based reduction of oolitic iron ore, Int. J. Miner. Metall. Mater, 24(2017), No. 2, p. 123.

    Article  CAS  Google Scholar 

  8. M. Omran, T. Fabritius, A.M. Elmahdy, N.A. Abdel-Khalek, M. ElAref, and A.E.H. Elmanawi, Effect of microwave pre-treatment on the magnetic properties of iron ore and its implications on magnetic separation, Sep. Purif. Technol., 136(2014), p. 223.

    Article  CAS  Google Scholar 

  9. W. Yu, T.C. Sun, Z.Z. Liu, J. Kou, and C.Y. Xu, Study on the strength of cold-bonded high-phosphorus oolitic hematite-coal composite briquettes, Int. J. Miner. Metall. Mater, 21(2014), No. 5, p. 423.

    Article  CAS  Google Scholar 

  10. J.W. Yu, Y.X. Han, Y.J. Li, and P. Gao, Growth behavior of the magnetite phase in the reduction of hematite via a fluidized bed, Int. J. Miner. Metall. Mater, 26(2019), No. 10, p. 1231.

    Article  CAS  Google Scholar 

  11. S.P. Suthers, V. Nunna, A. Tripathi, J. Douglas, and S. Hapugoda, Experimental study on the beneficiation of low-grade iron ore fines using hydrocyclone desliming, reduc tion roasting and magnetic separation, Miner. Process. Extr. Metall., 123(2014), No. 4, p. 212.

    Article  CAS  Google Scholar 

  12. N.A. Yunus, M.H. Ani, H.M. Salleh, R.Z.A. Rashid, T. Akiyama, H. Purwanto, and N.E.F. Othman, Effect of reduction roasting by using bio-char derived from empty fruit bunch on the magnetic properties of Malaysian iron ore, Int. J. Miner. Metall. Mater, 21(2014), p. 326.

    Article  CAS  Google Scholar 

  13. S.S. Rath, H. Sahoo, and B. Das, Optimization of flotation variables for the recovery of hematite particles from BHQ ore, Int. J. Miner. Metall. Mater, 20(2013), No. 7, p. 605.

    Article  CAS  Google Scholar 

  14. C.C. Yang, D.Q. Zhu, J. Pan, and Y. Shi, Some basic properties of granules from ore blends consisting of ultrafine magnetite and hematite ores, Int. J. Miner. Metall. Mater., 26(2019), No. 8, p. 953.

    Article  CAS  Google Scholar 

  15. Y.F. Fu, W.Z. Yin, B. Yang, C. Li, Z.L. Zhu, and D. Li, Effect of sodium alginate on reverse flotation of hematite and its mechanism, Int. J. Miner. Metall. Mater., 25(2018), No. 10, p. 1113.

    Article  CAS  Google Scholar 

  16. S. Yuan, W.T. Zhou, Y.X. Han, and Y.J. Li, Efficient enrichment of low-grade refractory rhodochrosite by precon-centration-neutral suspension roasting-magnetic separation process, Powder Technol., 361(2020), p. 529.

    Article  Google Scholar 

  17. Y.J. Li, R. Wang, Y.X. Han, and X.C. Wei, Phase transformation in suspension roasting of oolitic hematite ore, J. Cent. South Univ., 22(2015), No. 12, p. 4560.

    Article  CAS  Google Scholar 

  18. G. Lin, L.B. Zhang, J.H. Peng, T. Hu, and L. Yang, Microwave roasting of siderite and the catalytic combustion effects on anthracite, Appl. Therm.Eng., 117(2017), p. 668.

    Article  CAS  Google Scholar 

  19. D.W. Yang, T.C. Sun, H.F. Yang, C.Y. Xu, C.Y. Qi, and Z.X. Li, Dephosphorization mechanism in a roasting process for direct reduction of high-phosphorus oolitic hematite in west Hubei Province, China, J. Univ. Sci. Technol. Beijing, 32(2010), No. 8, p. 968.

    CAS  Google Scholar 

  20. J.C. Wang, S.B. Shen, J.H. Kang, H.X. Li, and Z.C. Guo, Effect of ore solid concentration on the bioleaching of phosphorus from high-phosphorus iron ores using indigenous sulfur-oxidizing bacteria from municipal wastewater, Process Biochem., 45(2010), No. 10, p. 1624.

    Article  CAS  Google Scholar 

  21. Y.L. Zhang, H.M. Li, and X.J. Yu, Recovery of iron from cyanide tailings with reduction roasting-water leaching followed by magnetic separation, J. Hazard. Mater., 213–214(2012), p. 167.

    Article  Google Scholar 

  22. V.P. Ponomar, N.O. Dudchenko, and A.B. Brik, Synthesis of magnetite powder from the mixture consisting of siderite and hematite iron ores, Miner. Eng., 122(2018), p. 277.

    Article  CAS  Google Scholar 

  23. V.P. Ponomar, Thermomagnetic properties of the goethite transformation during high-temperature treatment, Miner. Eng., 127(2018), p. 143.

    Article  CAS  Google Scholar 

  24. Z. Cui, Q. Liu, and T.H. Etsell, Magnetic properties of ilmenite, hematite and oilsand minerals after roasting, Miner. Eng., 15(2002), No. 12, p. 1121.

    Article  CAS  Google Scholar 

Download references

Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (Nos. 51734005, 51874071, and 51604063), the Fok Ying Tung Education Foundation for Young Teachers in the Higher Education Institutions of China (No. 161045), the Liao Ning Revitalization Talents Program (No. XLYC1807111), and the Fundamental Research Funds for the Central Universities of China (No. N180105030).

Author information

Authors and Affiliations

  1. College of Resources and Civil Engineering, Northeastern University, Shenyang, 110819, China

    Wen-tao Zhou, Yue-xin Han, Yong-sheng Sun & Yan-jun Li

Authors
  1. Wen-tao Zhou
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Yue-xin Han
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Yong-sheng Sun
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Yan-jun Li
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Yong-sheng Sun.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Zhou, Wt., Han, Yx., Sun, Ys. et al. Strengthening iron enrichment and dephosphorization of high-phosphorus oolitic hematite using high-temperature pretreatment. Int J Miner Metall Mater 27, 443–453 (2020). https://doi.org/10.1007/s12613-019-1897-3

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12613-019-1897-3

Keywords

Search

Navigation