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Sulfide Capacities of CaO-Al2O3-SiO2 Slags in the Temperature Range 1673 K to 1773 K (1400 °C to 1500 °C)

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Abstract

With a goal to estimate the sulfide capacities of slags used in the pretreatment of hot metal, the sulfide capacities of CaO-Al2O3-SiO2 slags were measured at 1673 K to 1773 K (1400 °C to 1500 °C). The gas–slag equilibrium technique has been used for this measurement. From the results obtained, it was found that the temperature dependence of the sulfide capacity of this slag is independent of the slag compositions. Therefore, a new empirical model based on optical basicity for sulfide capacity estimation of this slag was developed using the measured values of the current work and literature. With the use of the new model, the isosulfide capacity curves at 1673 K (1400 °C) were mapped.

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Acknowledgment

The authors are thankful to Nippon Steel Corporation, Japan for sponsoring the current work and the financial support for the same.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Royal Institute of Technology Sweden, 100 44, Stockholm, Sweden

    Yoshinori Taniguchi (Research Scholar) & Seshadri Seetharaman (Professor Emeritus)

  2. Nippon Steel Corporation, Chiyoda-ku, Tokyo, 100-8071, Japan

    Yoshinori Taniguchi (Research Scholar)

  3. Department of Physical Chemistry of Metallurgy, University of Science and Technology Beijing, Beijing, 100083, P.R. China

    Lijun Wang (Research Scholar)

  4. University of Tokyo, Tokyo, 113-8656, Japan

    Nobuo Sano (Professor Emeritus)

Authors
  1. Yoshinori Taniguchi
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  2. Lijun Wang
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  3. Nobuo Sano
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  4. Seshadri Seetharaman
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Corresponding author

Correspondence to Lijun Wang.

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Manuscript submitted December 11, 2008.

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Taniguchi, Y., Wang, L., Sano, N. et al. Sulfide Capacities of CaO-Al2O3-SiO2 Slags in the Temperature Range 1673 K to 1773 K (1400 °C to 1500 °C). Metall Mater Trans B 43, 477–484 (2012). https://doi.org/10.1007/s11663-011-9621-3

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  • DOI: https://doi.org/10.1007/s11663-011-9621-3

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