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Application of thermal analysis to study smelting reduction kinetics

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Abstract

A thermal analysis study on the reduction of iron oxide rich slags under different conditions is presented in this paper. The effects of important process variables such as time, temperature, lime-silica ratio, FeO level in slag etc. are discussed. It is shown that the mechanism of reduction by externally added graphite is different from that by a carbon saturated bath although the activation energy values are similar.

Zusammenfassung

Vorliegend wird eine thermische Analyse der Reduktion von eisenoxidreichen Schlacken unter verschiedenen Bedingungen vorgestellt. Debei wird der Einfluß bedeutender Verfahrensvariablen wie z.B. von Zeit, Temperatur, Kalk-Kieselerde-Verhältnis, FeO-Gehalt der Schlacke usw. diskutiert. Es wurde gezeigt, daß sich der Mechanismus der Reduktion bei Zusatz von Graphit von dem bei einem kohlenstoffgesättigten Bad unterscheidet, obwohl die Aktivierungsenergien ähnliche Werte aufweisen.

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Authors and Affiliations

  1. R & D Division, TATA STEEL, 831007, Jamshedpur, India

    Projjal Basu

  2. R. R. L., 751013, Bhubaneswar, India

    H. S. Ray

Authors
  1. Projjal Basu
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  2. H. S. Ray
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Basu, P., Ray, H.S. Application of thermal analysis to study smelting reduction kinetics. Journal of Thermal Analysis 45, 1533–1540 (1995). https://doi.org/10.1007/BF02547446

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  • DOI: https://doi.org/10.1007/BF02547446

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