Study on Flow Properties of Low Titanium-containing Blast Furnace Slag

According to Xuan steel’s blast furnace conditions,a RTW melt properties analyzer was used to to measure slag viscosity and then to research the effect of different basicity,MgO and Al₂O₃ content on flow properties of high titanium-bearing slag of blast furnace. The results show that the slags with 4 different levels of basicity feature short slag viscosity η-T curve. With increasing slag basicity,short η-T curve feature enhanced. At the same temperature the viscosity of the slag decreases as basicity increases. MgO in a certain range is able to play the role in reducing slag viscosity,but when the MgO content exceeds 11%,the slag viscosity increases with increase of MgO content. Al₂O₃ contenthas little effect on flow properties.Theslag temperature should maintain at above 1 400 ℃,and slag is feasible with higher Al₂O₃ content.