Journal of Northeastern University Natural Science ›› 2020, Vol. 41 ›› Issue (11): 1667-1672.DOI: 10.12068/j.issn.1005-3026.2020.11.023

• Materials & Metallurgy • Previous Articles    

Effect of TiO2 Content on Metallurgy Performance of High-Chromium Vanadium-Titanium Magnetite Sinter

ZHANG Li-heng, GAO Zi-xian, TANG Wei-dong, XUE Xiang-xin   

  1. School of Metallurgy, Northeastern University, Shenyang 110819, China.
  • Received:2019-12-25 Revised:2019-12-25 Online:2020-11-15 Published:2020-11-16
  • Contact: XUE Xiang-xin
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Abstract: High-chromium vanadium-titanium magnetite (HCVTM) and ordinary magnetite are used as raw materials to explore the influence of TiO2 content on the properties of HCVTM sinter by sintering cup test.The results show that as the TiO2 content increases from 6.30% to 11.76%, the tumbler index and sinter strength decrease while the vertical sintering speed,yield, and sintering utilization coefficient show the increasing tendency.The proportion of the tiny sinter particles with a diamater less than 5mm decreases gradually and the overall sinter size increases.With the increase of the TiO2 content, the hematite decreases, and the magnetite, CaTiO3 and Fe9TiO15 increase.The low temperature reduction degradation index shows an increasing tendency, while the reducibility decreases with the increase of TiO2 content.

Key words: high-chromium vanadium-titanium magnetite, TiO2, sinter, sintering performance, reducibility

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