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Equilibria between CaO‐TiOx or CaO‐Al2O3‐TiOx melts and liquid iron with respect to O, N and S were studied at 1873 K as a function of Ti (or Al) content in metal, using a CaO or an Al2O3 crucible. The Al‐O and Ti‐O relations in liquid iron were studied, and nitride and sulfide capacities defined by and , respectively, were obtained from nitrogen and sulfur distribution ratios, coupled with the analyzed oxygen content in liquid iron or the PO2 determined by Ti/TiO2 equilibrium. Based on these results, activities of Al2O3 and activity coefficients of TiO2 and TiO1.5 were evaluated.
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Kishi et al. (1994) studied this question.
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