Volume 42 Issue 4
Aug.  2021
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Zhao Tao, Yu Shaowu, Wen Jing, Zou Zhixue, Li Lin, Jiang Tao. Research on microwave enhanced direct reduction of vanadium titano-magnetite[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(4): 105-110. doi: 10.7513/j.issn.1004-7638.2021.04.018
Citation: Zhao Tao, Yu Shaowu, Wen Jing, Zou Zhixue, Li Lin, Jiang Tao. Research on microwave enhanced direct reduction of vanadium titano-magnetite[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(4): 105-110. doi: 10.7513/j.issn.1004-7638.2021.04.018

Research on microwave enhanced direct reduction of vanadium titano-magnetite

doi: 10.7513/j.issn.1004-7638.2021.04.018
  • Received Date: 2021-06-24
  • Publish Date: 2021-08-10
  • In this paper, the vanadium titano-magnetite concentrate was used as the raw material, and the influence of different heating methods on the reduction process was systematically compared based on the direct reduction process. The results show that compared with traditional heating, microwave heating can accelerate the reduction reaction of vanadium titano-magnetite, and the effect is more significant with the increase of temperature. At 1 350 ℃, the metallization rate of iron can reach 91.91%, increased by 5.32%. Microwave heating does not change the phase composition of the reduction product, but make the reduction product structure compact, less pores, coarse grains and uniform distribution. In addition, microwave heating can obviously remove the P element in the reduction product, but the removal effect of the S element is not significant. When heating temperature is 1350℃, P and S contents in resulted product for tranditional process are 0.077% and 0.29%, respectively, while for microwave process those values are 0.038% and 0.28%, respectively.
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