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Activity of Ferric Oxide in Steelmaking Slag

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Abstract

Refining reactions in steelmaking primarily involve oxidation of impurity element(s). The oxidation potential of the slag and the activity of oxygen in the metal (hO) are the major factors controlling these chemical reactions. In turn, the oxidation potential of the slag is influenced strongly by the equilibrium distribution of oxygen between ferrous and ferric oxides. We recently investigated the activity coefficient of FeO in steelmaking slag and the effect of chemical composition thereon. This work is focused on estimation of the activity coefficient of Fe2O3.

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Acknowledgment

The authors wish to thank Tata Steel for the financial support and the Royal Institute of Technology (KTH) for providing the experimental facilities used in carrying out these investigations.

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Author notes

  1. Ashok Kumar Lahiri (Visiting Scientist)

    Present address: Tata Steel, Jamshedpur, 831001, India

Authors and Affiliations

  1. Flat Products Technology Group, Tata Steel, Jamshedpur, 831001, India

    Somnath Basu (Senior Manager)

  2. Indian Institute of Science, Bangalore, 560012, India

    Ashok Kumar Lahiri (Visiting Scientist)

  3. Department of Materials Science and Engineering, Royal Institute of Technology, Stockholm, 10044, Sweden

    Seshadri Seetharaman (Professor)

Authors
  1. Somnath Basu
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  2. Ashok Kumar Lahiri
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  3. Seshadri Seetharaman
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Corresponding author

Correspondence to Somnath Basu.

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Manuscript submitted July 8, 2008.

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Basu, S., Lahiri, A.K. & Seetharaman, S. Activity of Ferric Oxide in Steelmaking Slag. Metall Mater Trans B 41, 414–419 (2010). https://doi.org/10.1007/s11663-009-9340-1

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  • DOI: https://doi.org/10.1007/s11663-009-9340-1

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