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Erschienen in:
01.02.2010
Simple Method for Estimating the Electrical Conductivity of Oxide Melts with Optical Basicity
Erschienen in: Metallurgical and Materials Transactions B | Ausgabe 1/2010
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Abstract
The electrical conductivity of oxide melts is an important physicochemical property for designing the electric smelting furnaces. Although the data of many slag systems have been measured, the quantitative relationships of electrical conductivity to slag composition and temperature are still limited. In this article, a model is proposed based on the optical basicity corrected for the cations required for the charge balance of \( {\text{AlO}}_{ 4}^{ 5- } \), in which Arrhenius Law is used to describe the relationship between electrical conductivity and temperature. In this model, the activation energy is expressed as a linear function of the corrected optical basicity. Successful applications to CaO-MgO-Al2O3-SiO2 and CaO-Al2O3-SiO2 systems indicate that this model can work well in the electrical conductivity estimation.