Thermodynamics of FetO-TiO2-SiO2 melts in equilibrium with solid iron

Kenji Matsuzaki, Kimihisa Ito

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    Abstract

    The activities of FetO in a FetO-TiO2-SiO2 system in equilibrium with solid iron at 1 623 and 1 673 K were measured by equilibrating molten slag with a H2-CO2 gas mixture. The iso-activity contour of FetO for this system was calculated and influence of slag composition on the activity coefficient of FetO and the Fe3+/Fe2+ ratio was determined. On the assumption that the FetO-TiO2-SiO2 system is based on an ideal mixture of the pseudo-binary components, the activities of SiO2 and TiO2 were estimated using Richardson's method.

    Original languageEnglish
    Pages (from-to)562-565
    Number of pages4
    JournalISIJ International
    Volume37
    Issue number6
    Publication statusPublished - 1997

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    Keywords

    • Activity of FeO
    • FeO-TiO-SiO system
    • Fe/Fe ratio
    • Richardson's method

    ASJC Scopus subject areas

    • Metals and Alloys

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