| The behaviors of physico-chemical and metallurgical properties of CaO-MgO-Fe₁O-SiO₂-MnO-∑M_xO_y(M_xO_y=P₂O_5, Al₂O₃, TiO₂, CaF₂, S) stags were discussed in terms of the concept of the optical basicity. The stags were saturated with MgO and in equilibrium with molten iron, and its MnO contents was varied from 2 to 30wt% in the temperature range of 1823 to 1973K. The phosphate capacity and the activity of P₂O_5 were well correlated with the theoretically driven optical basicity, the sulfide capacity was related with the optical basicity after Wrampelmeyer et al. Also, the activity coefficient of MnO and the manganese capacity had good agreements with the optical basicity proposed in the previous work". Following equations were obtained as the results. |
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