SULFUR DISTRIBUTION BETWEEN CAO-SIO2-TIO2-AL2O3-MGO SLAG AND CARBON-SATURATED IRON AT 1773 K

In this paper, the slag-metal equilibrium experiments were performed to investigate the effect of TiO2 concentration in the slag and basicity (R = wt%CaO/wt%SiO2) on the sulphur distribution ratio (Ls) between CaO-SiO2-TiO(2)15%Al2O3-8%MgO slag and carbon-saturated iron at 1 773 K. Sulphide capacities (Cs) were calculated based on the sulphur distribution ratio. The sulphur distribution ratio and sulphide capacity of CaO-SiO2-TiO2-15%Al2O3-8%MgO stage increase with increase of basicity and with decrease TiO2 concentration in the slag. The relationship between sulphide capacity of CaO-SiO2-TiO2-15%Al2O3-8%MgO slag and optical basicity was also investigated. The experimental results are useful for smelting vanadium titaniferrous magnetite of blast furnace.