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Thermodynamics of phosphorus and sulfur in the BaO-MnO flux system between 1573 and 1673 K

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Abstract

The oxidative dephosphorization of carbon-saturated Fe-Mn alloys was successfully demonstrated by measuring the phosphorus partition ratio between BaO-MnO, BaO-MnO-BaF2, and BaO-CaOsatd.-MnO fluxes and liquid Fe-Mn-Csatd. alloy between 1573 and 1673 K. The phosphorus partition ratio increases with increasing BaO content of the flux. The phosphate capacity of the BaO-MnO flux is as high as that of the BaO-BaF2 flux and is far larger than those of CaO-bearing fluxes. Addition of BaF2 to the BaO-MnO flux increases BaO solubility, which increases the phosphate capacity. The manganese partition ratios between the BaO-MnO flux and Fe-Mn-Csatd. alloy were approximately constant at 0.64, 0.33, and 0.23 at 1573, 1623, and 1673 K, respectively. The carbon content of the BaO-MnO flux was measured as functions of slag composition, temperature, and partial pressure of CO. A stable species of carbon in the BaO-MnO flux was found to be BaC2 experimentally and thermodynamically. The sulfide capacity of the BaO-MnO system at 1573 K has been shown to be far larger than any known flux systems and to be a few times larger than that for the BaO-BaF2 system.

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References

  1. E.T. Turkdogan:Physical Chemistry of High Temperature Technology, Academic Press, New York, NY, 1980, pp. 5–24.

    Google Scholar 

  2. I.P. Rachev, F. Tsukihashi, and N. Sano:Metall. Trans. B, 1991, vol. 22B, pp. 333–38.

    Article  CAS  Google Scholar 

  3. M. Maeda, S. Shiomi, and N. Sano:Tetsu-to-Hagané, 1983, vol. 69, pp. 760–66.

    CAS  Google Scholar 

  4. K. Kunisada and H. Iwai:Tetsu-to-Hagané, 1986, vol. 72, pp. A.45-A48.

    Google Scholar 

  5. M. Fujita, H. Katayama, A. Yamamoto, and M. Matsuo:Tetsu-to-Hagané, 1988, vol. 74, pp. 816–22.

    CAS  Google Scholar 

  6. T. Matsuo and K. Maya:Current Adv. Mater. Proc., 1990, vol. 3, p. 119.

    Google Scholar 

  7. N. Ahundov F.O., F. Tsukihashi, and N. Sano:ISIJ Int., 1991, vol. 31, pp. 685–88.

    Google Scholar 

  8. R. Inoue and H. Suite:Tetsu-to-Hagané, 1984, vol. 70, pp. 831–37.

    CAS  Google Scholar 

  9. S.R. Simeonov and N. Sano:Trans. Iron Steel Inst. Jpn., 1985, vol. 25, pp. 1116–21.

    CAS  Google Scholar 

  10. P.N. Smith and M.W. Davies:Trans. Inst. Min. Metall. Sect. C, 1972, vol. 80, p. C87.

    Google Scholar 

  11. S. Shim, F. Tsukihashi, and N. Sano:Metall. Trans B, 1993 vol. 24B, pp. 333–37.

    Article  CAS  Google Scholar 

  12. I. Barin:Thermochemical Data of Pure Substances, VCH, Weinheim, 1989, p. 900.

    Google Scholar 

  13. M. Ohtani:Tetsu-to-Hagané, 1957, vol. 43, pp. 1211–15.

    Google Scholar 

  14. Von H. Schenk and F. Newmann:Arch. Eisenhuttenwes., 1958, vol. 29, pp. 263–67.

    Google Scholar 

  15. W. Dresler:Trans. Inst. Min. Metall. Sect. C, 1989, vol. 98, pp. C61–67.

    Google Scholar 

  16. D.J. Min and N. Sano:Metall. Trans. B, 1989, vol. 20B pp. 871–77.

    Article  CAS  Google Scholar 

  17. A. Tagaya, H. Chiba, F. Tsukihashi, and N. Sano:Metall. Trans. B, 1991, vol. 22B, pp. 499–502.

    Article  CAS  Google Scholar 

  18. Carl Wagner:Metall. Trans. B, 1975, vol. 6B, pp. 405–09.

    Article  CAS  Google Scholar 

  19. M. Yamamoto, K. Yamada, L. Meshkov, and E. Kato:Tetsu-to-Hagané, 1980, vol. 66, pp. 2032–39.

    CAS  Google Scholar 

  20. F. Tsukihashi, M. Nakamura, T. Orimoto, and N. Sano:Tetsu-to-Hagané, 1990, vol. 76, pp. 1664–71.

    CAS  Google Scholar 

  21. Y.E. Lee:Metall. Trans. B, 1986, vol. 17B, pp. 777–83.

    Article  CAS  Google Scholar 

  22. T. Hara, F. Tsukihashi, and N. Sano:Tetsu-to-Hagané, 1990, vol. 76, pp. 352–59.

    CAS  Google Scholar 

  23. N. Sano, F. Tsukihashi, and A. Tagaya:ISIJ Int., 1991, vol. 31, pp. 1345–47.

    CAS  Google Scholar 

  24. M. Muraki, H. Fukushima, and N. Sano:Tetsu-to-Hagané, 1985, vol. 71, pp. 693–99.

    CAS  Google Scholar 

  25. K. Terashima, M. Hashimoto, H. Inoue, M. Tokuda, and M. Otani:Tetsu-to-Hagané, 1982, vol. 68, p. S960.

    Google Scholar 

  26. H. Ono, A. Kobayashi, F. Tsukihashi, and N. Sano:Metall. Trans. B, 1992, vol. 23B, pp. 313–16.

    Article  CAS  Google Scholar 

  27. H. Ono, F. Tsukihashi, and N. Sano: The University of Tokyo, Tokyo, Japan, unpublished research, 1992.

  28. J.F. Elliott, M. Gleiser, and V. Ramakrishna:Thermochemistry for Steelmaking, Vol. 2, Addison-Wesley Publishing Company, Inc., Reading, MA, 1963, pp. 166 and 185.

    Google Scholar 

  29. F.D. Richardson:Physical Chemistry of Melts in Metallurgy, Vol. 2, Academic Press, New York, NY, 1974, p. 293.

    Google Scholar 

  30. N. Fukatsu and Z. Kozuka:J. Jpn. Inst. Met., 1981, vol. 45, pp. 1263–70.

    CAS  Google Scholar 

  31. T. Rosenquvist:Trans. AIME, 1949, vol. 185, pp. 451–60.

    Google Scholar 

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Authors and Affiliations

  1. NKK, Kawasaki, Kanagawa, Japan

    Yoshinori Watanabe

  2. Honda R&D Co. Ltd., Tochigi, Japan

    Katsuhiro Kitamura

  3. Nippon Steel, Kimitsu, Chiba, Japan

    Ivan Petkov Rachev (Researcher)

  4. Department of Metallurgy, The University of Tokyo, 113, Bunkyo-ku, Tokyo, Japan

    Fumitaka Tsukihashi (Associate Professor) & Nobuo Sano (Professor)

Authors
  1. Yoshinori Watanabe
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  2. Katsuhiro Kitamura
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  3. Ivan Petkov Rachev
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  4. Fumitaka Tsukihashi
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  5. Nobuo Sano
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Formerly Graduate Student, Department of Metallurgy, The University of Tokyo

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Watanabe, Y., Kitamura, K., Rachev, I.P. et al. Thermodynamics of phosphorus and sulfur in the BaO-MnO flux system between 1573 and 1673 K. Metall Trans B 24, 339–347 (1993). https://doi.org/10.1007/BF02659137

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  • DOI: https://doi.org/10.1007/BF02659137

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