Sulphide capacities of CaO–MgO–AlO 1·5,MgO–MnO–AlO 1·5 and Cao–MgO–MnO–AlO 1·5 slags

Abstract

Modelling of sulphide capacities of CaO–MgO–AlO_1·5, MgO–MnO–AlO_1·5 and CaO–MgO–MnO–AlO_1·5 slag systems was investigated. The Reddy–Blander model was applied to calculate the sulphide capacities a priori with the knowledge of chemical and solution properties of oxide and sulphides for the above slag systems. The sulphide capacities were determined as a function of temperature (1500–1650°C), composition (0< <0·6) and basic oxides (CaO, MnO and MgO). Sulphide capacities of aluminates increased with increase in temperatures and decreased with the increase in alumina content in the slags. Very good agreement was observed between model and experimental data.