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Effect of MgO/Al2O3 on Fluidity of SFCA-Based Binder Phase

Received: 23 December 2021     Accepted: 24 January 2022     Published: 9 February 2022
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Abstract

The fluidity of sinter binder phase is one of the main properties that determine the quality of sinter, and it is also an important index to characterize the quality of sinter. So far, iron and steel enterprises mainly produce high alkalinity sinter, and its binder phase is mainly composite calcium ferrite based binder phase. Therefore, the research object of this paper is the composite calcium ferrite based binder phase of high alkalinity sinter. The effect of MgO/Al2O3 on the fluidity of high calcium composite calcium ferrite based binder phase was investigated from three aspects: fluidity index, liquid phase formation temperature and melting time by using chemical pure reagent and melting point velocimeter. The results show that in the range of MgO/Al2O3 from 0.46 to 0.68, with the increase of the ratio of MgO to Al2O3, the fluidity index first increases and then decreases, and the maximum value is obtained at MgO/Al2O3=0.65; The melting time decreases first and then increases. At the same time, the minimum value is obtained at MgO/Al2O3=0.65, and the influence on the melting time becomes more and more obvious with the increase of MgO/Al2O3 ratio; the characteristic temperature of liquid phase formation increases briefly and then decreases.

Published in International Journal of Mineral Processing and Extractive Metallurgy (Volume 7, Issue 1)
DOI 10.11648/j.ijmpem.20220701.12
Page(s) 8-13
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2022. Published by Science Publishing Group

Keywords

Fluidity, MgO/Al2O3 Ratio, Calcium Ferrite, Sintering Liquid Phase

References
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[8] Ding X. Study of the mechanism on formation of calcium ferrite in the Fe2O3-CaO-SiO2 system [D]. Doctoral dissertation of University of Science and Technology, Beijing, 2015. 6.
[9] Nathan A. S. Webster, Mark I. Pownceby, Ian C. Madsen, etc. Silico-Ferrite of Calcium and Aluminum (SFCA) iron ore sinter bonding phase: new insights into their formation during heating and cooling [J]. Metallurgical and Materials Transactions B, 2012, 43B (12): 1344.
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[11] Wang XY, Xing HW, Tian TL, etc. Study on liquid phase formation behavior during iron ore fines sintering [J]. Foundry Technology, 2017, 38 (03): 633-635+643.
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[14] Li G S, Jin M F, Jiang X, etc. On wettability of binding phase in fluorine-bearing sinter [J]. Iron and Steel, 2008, 18 (5): 20.
[15] Liu S, Li F M, Lv Q. Basic sintering characteristics of low titanium mixed iron ore [J]. Iron Steel Vanadium Titanium, 2015, 36 (5): 75.
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  • APA Style

    Yinhe Lin, Xiangkui Cheng, Xuefeng Shi, Chunlei Pu, Ye Tian, et al. (2022). Effect of MgO/Al2O3 on Fluidity of SFCA-Based Binder Phase. International Journal of Mineral Processing and Extractive Metallurgy, 7(1), 8-13. https://doi.org/10.11648/j.ijmpem.20220701.12

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    ACS Style

    Yinhe Lin; Xiangkui Cheng; Xuefeng Shi; Chunlei Pu; Ye Tian, et al. Effect of MgO/Al2O3 on Fluidity of SFCA-Based Binder Phase. Int. J. Miner. Process. Extr. Metall. 2022, 7(1), 8-13. doi: 10.11648/j.ijmpem.20220701.12

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    AMA Style

    Yinhe Lin, Xiangkui Cheng, Xuefeng Shi, Chunlei Pu, Ye Tian, et al. Effect of MgO/Al2O3 on Fluidity of SFCA-Based Binder Phase. Int J Miner Process Extr Metall. 2022;7(1):8-13. doi: 10.11648/j.ijmpem.20220701.12

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  • @article{10.11648/j.ijmpem.20220701.12,
      author = {Yinhe Lin and Xiangkui Cheng and Xuefeng Shi and Chunlei Pu and Ye Tian and Guoliang Yin and Hao Yu and Jian Zhao},
      title = {Effect of MgO/Al2O3 on Fluidity of SFCA-Based Binder Phase},
      journal = {International Journal of Mineral Processing and Extractive Metallurgy},
      volume = {7},
      number = {1},
      pages = {8-13},
      doi = {10.11648/j.ijmpem.20220701.12},
      url = {https://doi.org/10.11648/j.ijmpem.20220701.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmpem.20220701.12},
      abstract = {The fluidity of sinter binder phase is one of the main properties that determine the quality of sinter, and it is also an important index to characterize the quality of sinter. So far, iron and steel enterprises mainly produce high alkalinity sinter, and its binder phase is mainly composite calcium ferrite based binder phase. Therefore, the research object of this paper is the composite calcium ferrite based binder phase of high alkalinity sinter. The effect of MgO/Al2O3 on the fluidity of high calcium composite calcium ferrite based binder phase was investigated from three aspects: fluidity index, liquid phase formation temperature and melting time by using chemical pure reagent and melting point velocimeter. The results show that in the range of MgO/Al2O3 from 0.46 to 0.68, with the increase of the ratio of MgO to Al2O3, the fluidity index first increases and then decreases, and the maximum value is obtained at MgO/Al2O3=0.65; The melting time decreases first and then increases. At the same time, the minimum value is obtained at MgO/Al2O3=0.65, and the influence on the melting time becomes more and more obvious with the increase of MgO/Al2O3 ratio; the characteristic temperature of liquid phase formation increases briefly and then decreases.},
     year = {2022}
    }
    

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  • TY  - JOUR
    T1  - Effect of MgO/Al2O3 on Fluidity of SFCA-Based Binder Phase
    AU  - Yinhe Lin
    AU  - Xiangkui Cheng
    AU  - Xuefeng Shi
    AU  - Chunlei Pu
    AU  - Ye Tian
    AU  - Guoliang Yin
    AU  - Hao Yu
    AU  - Jian Zhao
    Y1  - 2022/02/09
    PY  - 2022
    N1  - https://doi.org/10.11648/j.ijmpem.20220701.12
    DO  - 10.11648/j.ijmpem.20220701.12
    T2  - International Journal of Mineral Processing and Extractive Metallurgy
    JF  - International Journal of Mineral Processing and Extractive Metallurgy
    JO  - International Journal of Mineral Processing and Extractive Metallurgy
    SP  - 8
    EP  - 13
    PB  - Science Publishing Group
    SN  - 2575-1859
    UR  - https://doi.org/10.11648/j.ijmpem.20220701.12
    AB  - The fluidity of sinter binder phase is one of the main properties that determine the quality of sinter, and it is also an important index to characterize the quality of sinter. So far, iron and steel enterprises mainly produce high alkalinity sinter, and its binder phase is mainly composite calcium ferrite based binder phase. Therefore, the research object of this paper is the composite calcium ferrite based binder phase of high alkalinity sinter. The effect of MgO/Al2O3 on the fluidity of high calcium composite calcium ferrite based binder phase was investigated from three aspects: fluidity index, liquid phase formation temperature and melting time by using chemical pure reagent and melting point velocimeter. The results show that in the range of MgO/Al2O3 from 0.46 to 0.68, with the increase of the ratio of MgO to Al2O3, the fluidity index first increases and then decreases, and the maximum value is obtained at MgO/Al2O3=0.65; The melting time decreases first and then increases. At the same time, the minimum value is obtained at MgO/Al2O3=0.65, and the influence on the melting time becomes more and more obvious with the increase of MgO/Al2O3 ratio; the characteristic temperature of liquid phase formation increases briefly and then decreases.
    VL  - 7
    IS  - 1
    ER  - 

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Author Information
  • School of Materials and Chemical Engineering, Yibin University, Yibin, China

  • Panzhihua International Research Institute of Vanadium and Titanium, Panzhihua University, Panzhihua, China

  • School of Metallurgy and Energy, North China University of Technology, Tangshan, China

  • Intelligent Development Department, MCC Huatian Engineering and Technology Corporation, Nanjing, China

  • Intelligent Development Department, MCC Huatian Engineering and Technology Corporation, Nanjing, China

  • School of Materials and Chemical Engineering, Yibin University, Yibin, China

  • School of Metallurgy and Energy, North China University of Technology, Tangshan, China

  • School of Metallurgy and Energy, North China University of Technology, Tangshan, China

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