Study on viscosity of titania bearing blast furnace slag

摘要

The viscosity of blast furnace slag which was taken from Shuicheng Iron and Steel Group Co. Limited was experimentally measured by column whirling method using the ND-II slag viscosity tester. By adding analytical reagent CaO, SiO_2, Al_2O_3, Mg_O and TiO_2 in accordance with orthogonal design, the contents of compositions in slag were adjusted in Ca_O/SiO-2=1.16-1.24, 14.06-17.06mass%Al_2O_3, 5-7mass%TiO_2, 8.96-9.96mass%Mg_O. The results showed that the viscosity of BF slag decreased with increasing TiO2; when the Al_2O_3 content in the slag was 14.06%, the viscosity of BF slag had a lowest value, a highest value had for 15.56% AI2O3 content, and a lower value for 17.06% AI2O3 content. There is no significant effect on the viscosity by both the magnesia and the binary basicity.