ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Thermodynamics of FetO-TiO2-SiO2 Melts in Equilibrium with Solid Iron
Kenji MatsuzakiKimihisa Ito
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1997 Volume 37 Issue 6 Pages 562-565

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Abstract

The activities of FetO in a FetO-TiO2-SiO2 system in equilibrium with solid iron at 1623 and 1673 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.

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© The Iron and Steel Institute of Japan
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