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Reaction mechanism on the smelting reduction of iron ore by solid carbon

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Abstract

The kinetics of the smelting reduction of iron ore by a graphite crucible and carbon-saturated molten iron was investigated between 1400 °C and 1550 °C, and its reaction phenomena were continuously observed in situ by X-ray fluoroscopy. In the smelting reduction by graphite, it was shown from the observation results that the smelting reduction reaction proceeded by the following two stages: an initial quiet reduction without foaming (stage I) and a following highly active reduction with severe foaming (stage II). At 1500 °C, by the graphite crucible, the reduction rate of iron ore was found to be 8.88×10−5 mol/cm2 · s, and by the molten iron, 8.25×10−5 mol/cm2·s. The activation energies for the reduction by the graphite crucible and the molten iron were 24.1 and 22.9 kcal/mol, respectively. Based on the results of kinetic research and X-ray fluoroscopic observations, it can be concluded that these two types of smelting reduction reactions of iron ore by the graphite crucible and by the molten iron are essentially the same.

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References

  1. R.J. Fruehan, K. Ito, and B. Ozturk: Trans. Iron Steel Soc., 1988, vol. 11, p. 83.

    Google Scholar 

  2. T. Miyazaki: Tetsu-to-Hagané, 1992, vol. 78, pp. 1238–39.

    CAS  Google Scholar 

  3. H.M.W. Delport and P.J. Holaschke: Corex Symp., 1990, p. 82.

  4. R.J. Fruehan: Int. Conf. on New Smelting Reduction and Near Net Shape Casting Technology for Steel, Oct. 14–19, 1990, RIST, Pohang City, Korea, The Korean Institute of Metals, Seoul, Korea, 1990, vol. 1, pp. 46–47.

    Google Scholar 

  5. T.E. Dancy: J. Iron Steel Inst., 1951, vol. 169, p. 17.

    CAS  Google Scholar 

  6. V.V. Kondakov, D.I. Ryzenkov, and D.M. Golenko: Izv. VUZ Chem. Met., 1960, vol. 1, p. 17.

    Google Scholar 

  7. P.M. Shurygin and V.N. Boronenkov: Izv. VUZ Chem. Met., 1965, vol. 2, p. 23.

    Google Scholar 

  8. A. Sato, S. Yoshimatsu, R. Nakagawa, A. Fukuzawa, and T. Ozaki: Tetsu-to-Hagané, 1981, vol. 67, p. 303.

    CAS  Google Scholar 

  9. M. Sugata, T. Sugiyama, and S. Kondo: Tetsu-to-Hagané, 1972, vol. 58, p. 1363.

    CAS  Google Scholar 

  10. T. Takahashi, M. Amatatsu, and T. Soma: Tetsu-to-Hagané, 1975, vol. 61, p. 2525.

    CAS  Google Scholar 

  11. Y. Sasaki, S. Hara, D.R. Gaskell, and G.R. Belton: Metall. Trans. B, 1984, vol. 15B, pp. 563–71.

    CAS  Google Scholar 

  12. F. Tsukihashi, M. Amatatsu, and T. Soma: Tetsu-to-Hagané, 1982, vol. 68, p. 1887.

    Google Scholar 

  13. I.D. Sommerville, P. Grieveson, and J. Taylor: Ironmaking and Steelmaking, 1980, vol. 1, p. 31.

    Google Scholar 

  14. Y. Sasaki and T. Soma: Testu-to-Hagané, 1978, vol. 64, p. 379.

    Google Scholar 

  15. J. Hirchfelder, C.F. Curtis, and R.B. Bird: Molecular Theory of Gases and Liquids, John Wiley & Sons, New York, NY, 1964.

    Google Scholar 

  16. D.J. Min: The 6th Proc. Process Metallurgy, Aug. 19–20, 1993, Pohang City, Korea, The Korean Institute of Metals, Seoul, Korea, 1993, p. 107.

    Google Scholar 

  17. S. Sun and G.R. Belton: Ph.D. Thesis, University of Newcastle, Newcastle, Australia, 1989.

    Google Scholar 

  18. H.J. Grabeke: Phys. Chem., 1966, vol. 70, p. 664.

    Google Scholar 

  19. D.A. Frank-Kameneskii: Diffusion and Heat Exchange in Chemical Kinetics, Princeton University, Princeton, NJ, 1955, p. 59.

    Google Scholar 

  20. D.R. Sain and G.R. Belton: Metall. Trans. B, 1976, vol. 7B, pp. 235–44.

    CAS  Google Scholar 

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Authors and Affiliations

  1. the Process Metallurgy Research Team, Research Institute of Industrial Science and Technology, 790-600, Pohang, Korea

    Jae-Cheol Lee (Senior Researcher)

  2. the Department of Metallurgical Engineering, Yonsei University, 120-749, Seoul, Korea

    Dong-Joon Min (Professor)

  3. the Department of Metallurgical Engineering, Yeungnam University, 713-749, Kyung Pook, Korea

    Sung-Soo Kim (Professor)

Authors
  1. Jae-Cheol Lee
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  2. Dong-Joon Min
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  3. Sung-Soo Kim
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Lee, JC., Min, DJ. & Kim, SS. Reaction mechanism on the smelting reduction of iron ore by solid carbon. Metall Mater Trans B 28, 1019–1028 (1997). https://doi.org/10.1007/s11663-997-0056-9

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  • DOI: https://doi.org/10.1007/s11663-997-0056-9

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