Research on activity and high temperature liquid phase behavior of sinter fluxes
The activity and high temperature liquid phase behavior of sinter fluxes (lime,dolomite)were studied through the indicator titration method and seat drop method.The results showed that there was a significant difference in the activity of quicklime,which was mainly determined by the activity of "uniform titration stage".The characteristic temperature of high activity quicklime reacting with Fe2O3 was low and the characteristic temperature range was narrow.The characteristic temperature of limestone reacting with Fe2O3 was lower than that of quicklime,which was mainly due to the higher CaO activity at high temperature.The characteristic temperature of dolomite reacting with Fe2O3 was the highest,which was mainly due to MgO·Fe2O3 blocking the formation of calcium ferrite.Dolomite reacting with Fe2O3 formed an obvious stratification.The inner layer was dominated by high melting point substances including MgO,and the outer layer was mainly composed of low melting point ferrite.
NETL
NSTL
万方数据
维普
