Mechanism Study on the High-Phosphorus Hematite Carbothermal Reduction in Microwave Field

Abstract:

In the paper, the research on raising the grade of iron ore and dephosphorization for high-phosphorus oolitic hematite by coal-based carbothermal reduction in microwave field was carried out. The microwave action mechanism was analyzed by the aspects of ionic crystal lattice energy and thermodynamics and dynamics^[1]. The possibility of the application of microwave in raising the grade of iron ore and dephosphorization for high-phosphorus hematite was discussed. The research indicated that the primary structure of the high-phosphorus hematite was changed by the high-phosphorus hematite carbothermal reduction in microwave field, meantime the carbothermal reduction reaction activation energy was decreased and the reduction rate was speeded up^[2-4].

• Periodical: Advanced Materials Research (Volumes 291-294)
• Pages: 1358-1361
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.291-294.1358
• Online since: July 2011
• Authors: Zhi Jun He, Hui Zhang, Yong Long Jin
• Keywords: Dephosphorization Rate, High-Phosphorus Hematite, Microwave Action Mechanism

References

[1] Zh.L. Zhao, H.Q. Tang and Zh.Ch.Guo. Journal of University of Science and Technology Beijing. Vol. 31(2009), p.964

[2] Y.K. Wen and J.Shao. Geochimica. Vol. 4(1973), pp.276-285

[3] H.L. Zhang, X.M.Hu and Sh.L.L. Journal of South China Univercity of Technology. Vol. 9(1997), pp.48-49

[4] J.Ch.Zhou, Zh.L.Xue, Z.Q.Li and H.F. Zhang. Journal of Wuhan University of Science and Technology. Vol. 30(2007), pp.458-460