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Influence of coke content on sintering process of chromium-containing vanadium-titanium magnetite

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Abstract

The sintering of chromium-containing vanadium-titanium magnetite using different coke contents was studied through the sintering pot tests, X-ray diffraction analysis and mineralogical phase analysis. Results showed that, as the coke content increased from 3.2% to 4.4%, the liquid phase and combustion zone thickness increased while the vertical sintering rate and ratio of sintered product decreased. In addition, the combustion ratio of exhaust gas also increased with increasing the coke content, indicating that combustion zone temperature also increased, and the excessive the coke content in the sintering process of vanadiumtitanium magnetite is harmful. As the coke content increased, the magnetite, silicates, and perovskite contents of the sintered ore increased while the contents of hematite and calcium ferrite of sintered ore decreased; drum strength decreased, and reduction degradation properties increased while reduction ability decreased. We found that the appropriate coke content for the sintering process is 3.6 wt%.

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Authors and Affiliations

  1. School of Metallurgy, Northeastern University, Shenyang, 110819, China

    Mi Zhou  (周密), Songtao Yang  (杨松陶), Tao Jiang & Xiangxin Xue

  2. School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan, 114051, China

    Songtao Yang  (杨松陶)

  3. Key Laboratory of Liaoning Province for Recycling Science of Metallurgical Resources, Shenyang, 110819, China

    Mi Zhou  (周密), Tao Jiang & Xiangxin Xue

Authors
  1. Mi Zhou  (周密)
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  2. Songtao Yang  (杨松陶)
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  3. Tao Jiang
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  4. Xiangxin Xue
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Corresponding author

Correspondence to Songtao Yang  (杨松陶).

Additional information

Funded by the National Natural Science Foundation of China (Nos. 51604065, 51674084), the Fundamental Funds for the Program of the Science Foundation of Liaoning Province (No.20170540316)

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Zhou, M., Yang, S., Jiang, T. et al. Influence of coke content on sintering process of chromium-containing vanadium-titanium magnetite. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 33, 68–72 (2018). https://doi.org/10.1007/s11595-018-1787-y

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  • DOI: https://doi.org/10.1007/s11595-018-1787-y

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