Effect of MgO/Al2O3 on Viscosity and Thermodynamic Properties of High-Titanium Slag Containing Chlorine

In order to study the effect of change MgO/Al2O3 on viscosity and thermodynamic properties chlorinated blast-furnace slag, CaO-SiO2-MgO-Al2O3-TiO2-CaCl2 slag system was taken as research object, rule high-titanium studied by using rotating cylinder method. The thermal stability quantitatively analyzed calculating extreme heat release rate (EHRS) slag. At same time, qualitative quantitative analysis containing chlorine carried out combining FTIR Raman spectroscopy, mechanism influence viscous flow characteristics revealed. results show that when alkalinity (R2) fixed is 1.15, in range 0.40–0.66, presents a significant decreasing trend with gradual increase MgO/Al2O3, activation energy decreases from 98.75kJ · mol−1 95.21kJ mol−1. capacity enthalpy decrease but opposite change. When increases, increases 13.413 kJ 15.172 kJ. content simple structural units Q0 Q1 silicate tetrahedron gradually complex Q2 Q3 decreases, average amount non-bridging oxygen 1.94 1.79, indicating Al2O3 acts network maker internal structure destroys reducing degree polymerization network. addition, transmissivity [SiO4]4− tetrahedron, [AlO4]4− T-O-T bond bending vibration band shows trend. Within scope experiment, can effectively improve fluidity chlorine-containing