Zheng-gen Liu, Man-sheng Chu, Hong-tao Wang, Wei Zhao, and Xiang-xin Xue, Effect of MgO content in sinter on the softening–melting behavior of mixed burden made from chromium-bearing vanadium–titanium magnetite, Int. J. Miner. Metall. Mater., 23(2016), No. 1, pp. 25-32. https://doi.org/10.1007/s12613-016-1207-2
Cite this article as:
Zheng-gen Liu, Man-sheng Chu, Hong-tao Wang, Wei Zhao, and Xiang-xin Xue, Effect of MgO content in sinter on the softening–melting behavior of mixed burden made from chromium-bearing vanadium–titanium magnetite, Int. J. Miner. Metall. Mater., 23(2016), No. 1, pp. 25-32. https://doi.org/10.1007/s12613-016-1207-2

Effect of MgO content in sinter on the softening–melting behavior of mixed burden made from chromium-bearing vanadium–titanium magnetite

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  • Corresponding author:

    Man-sheng Chu    E-mail: chums@smm.neu.edu.cn

  • Received: 13 April 2015Revised: 8 July 2015Accepted: 13 July 2015
  • The effect of sinter with different MgO contents on the softening–melting behavior of mixed burden made from chromium- bearing vanadium–titanium magnetite was investigated. The results show that with increasing MgO content in the sinter, the softening interval and melting interval increased and the location of the cohesive zone shifted downward slightly and became moderately thicker. The softening–melting characteristic value was less pronounced when the MgO content in the sinter was 2.98wt%–3.40wt%. Increasing MgO content in the sinter reduced the content and recovery of V and Cr in the dripped iron. In addition, greater MgO contents in the sinter resulted in the generation of greater amounts of high-melting-point components, which adversely affected the permeability of the mixed burden. When the softening–melting behavior of the mixed burden and the recovery of valuable elements were taken into account, proper MgO contents in the sinter and slag ranged from 2.98wt% to 3.40wt% and from 11.46wt% to 12.72wt%, respectively, for the smelting of burden made from chromium-bearing vanadium–titanium magnetite in a blast furnace.
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