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Volume 25 Issue 6
Jun.  2018
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文章导航 >  矿物冶金与材料学报（英文）  > 2018  >  25(6): 609-622
Cong Feng, Man-sheng Chu, Jue Tang, and Zheng-gen Liu, Effects of smelting parameters on the slag/metal separation behaviors of Hongge vanadium-bearing titanomagnetite metallized pellets obtained from the gas-based direct reduction process, Int. J. Miner. Metall. Mater., 25(2018), No. 6, pp. 609-622. https://doi.org/10.1007/s12613-018-1608-5
Cite this article as:
Cong Feng, Man-sheng Chu, Jue Tang, and Zheng-gen Liu, Effects of smelting parameters on the slag/metal separation behaviors of Hongge vanadium-bearing titanomagnetite metallized pellets obtained from the gas-based direct reduction process, Int. J. Miner. Metall. Mater., 25(2018), No. 6, pp. 609-622. https://doi.org/10.1007/s12613-018-1608-5
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研究论文

Effects of smelting parameters on the slag/metal separation behaviors of Hongge vanadium-bearing titanomagnetite metallized pellets obtained from the gas-based direct reduction process

  • School of Metallurgy, Northeastern University, Shenyang 110819, China

  • 通讯作者:

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

  • Smelting separations of Hongge vanadium-bearing titanomagnetite metallized pellets (HVTMP) prepared by gas-based direct reduction were investigated, and the effects of smelting parameters on the slag/metal separation behaviors were analyzed. Relevant mechanisms were elucidated using X-ray diffraction analysis, FACTSAGE 7.0 calculations, and scanning electron microscopy observations. The results show that, when the smelting temperature, time, and C/O ratio are increased, the recoveries of V and Cr of HVTMP in pig iron are improved, the recovery of Fe initially increases and subsequently decreases, and the recovery of TiO2 in slag decreases. When the smelting CaO/SiO2 ratio is increased, the recoveries of Fe, V, and Cr in pig iron increase and the recovery of TiO2 in slag initially increases and subsequently decreases. The appropriate smelting separation parameters for HVTMP are as follows: smelting temperature of 1873 K; smelting time of 30–50 min; C/O ratio of 1.25; and CaO/SiO2 ratio of 0.50. With these optimized parameters (smelting time: 30 min), the recoveries of Fe, V, Cr, and TiO2 are 99.5%, 91.24%, 92.41%, and 94.86%, respectively.
    • Research Article

    Effects of smelting parameters on the slag/metal separation behaviors of Hongge vanadium-bearing titanomagnetite metallized pellets obtained from the gas-based direct reduction process

    + Author Affiliations
      Abstract
    • Smelting separations of Hongge vanadium-bearing titanomagnetite metallized pellets (HVTMP) prepared by gas-based direct reduction were investigated, and the effects of smelting parameters on the slag/metal separation behaviors were analyzed. Relevant mechanisms were elucidated using X-ray diffraction analysis, FACTSAGE 7.0 calculations, and scanning electron microscopy observations. The results show that, when the smelting temperature, time, and C/O ratio are increased, the recoveries of V and Cr of HVTMP in pig iron are improved, the recovery of Fe initially increases and subsequently decreases, and the recovery of TiO2 in slag decreases. When the smelting CaO/SiO2 ratio is increased, the recoveries of Fe, V, and Cr in pig iron increase and the recovery of TiO2 in slag initially increases and subsequently decreases. The appropriate smelting separation parameters for HVTMP are as follows: smelting temperature of 1873 K; smelting time of 30–50 min; C/O ratio of 1.25; and CaO/SiO2 ratio of 0.50. With these optimized parameters (smelting time: 30 min), the recoveries of Fe, V, Cr, and TiO2 are 99.5%, 91.24%, 92.41%, and 94.86%, respectively.
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