발간논문

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Vol.33, No.12, 1628 ~ 1634, 1995
Title
Reaction Equilibria between Molten Iron and CaO - MgO - FetO - SiO2 - MnO - ΣMxOy Slag Saturated with MgO (2) - Quantification of Activity of FeO by Ishikuro's Ionic Model and Rugular Solution Model -
박종민Jong Min Park, 허완욱Wan Wook Huh, 조만형Man Hyung Dzo
Abstract
The activities of iron oxides in CaO-MgO-Fe₁O-SiO₂-MnO-∑M_xO_y slags which are saturated with MgO and in equilibrium with molten iron were discussed in terms of the concept of the regular solution model as well as an ionic solution model suggested by Ishiguro & Okubo to quantify the oxygen potential of the BOF steelmaking slag. The results obtained are as follows; 1) By the regression analysis of the FeO activity with slag composition based on the Ishiguro and Okubo`s ionic model, the following equation was obtained, logγ_(FeO) = -9.609N_(O^(2-)) + 12.58(N_(O^(2-))² - 6.062(N_(O²))³ + 2.935 2) From the analysis of the activities of FeO and Fe₂O₃ by introducing the regular solution model, it was revealed that the model is not adequate to quantify the activities of FeO and Fe₂O₃ of BOF steelmaking slag yet.
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