Influence of Al2O3 on liquid phase formulation during iron ore sintering process
HU Chang-qing,WANG Yu-feng,CUI Li-min
(Hebei Key Laboratory of Modern Metallurgy Technology, College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063009, Hebei, China)
Abstract:The thermodynamic analysis of the liquid phase area of CaO-SiO2-FeOx-MgO-Al2O3 system was carried out by FactSage under different Al2O3 content. And the effect of kaolinite Al2O3 and gibbsite Al2O3 on the liquid phase generation properties of CaO-SiO2-FeOx-MgO-Al2O3 system was researched through liquid phase characteristic experiment. It was reported that there were no significant differences between the effect of kaolinite Al2O3 and gibbsite Al2O3 on the characteristic temperature of liquid phase formulation. With the increase of Al2O3 content, the temperature of liquid phase beginning generation rised, the temperature range of liquid phase generation decreased, and the ratio of bonding phase proportion of high melting point raised. The quantity of liquid phase formulation was related to the type and content of Al2O3. When the content of Al2O3 was 1.0%, the mixtures of the gibbsite Al2O3 formulated less liquid phase. Similarly, when the content of Al2O3 was in the range of 2.0%~3.5%, the mixtures of the kaolinite Al2O3 formulated less liquid phase.
胡长庆,王玉峰,崔利民. Al2O3对铁矿粉烧结液相生成的影响[J]. 中国冶金, 2016, 26(8): 12-16.
HU Chang-qing,WANG Yu-feng,CUI Li-min. Influence of Al2O3 on liquid phase formulation during iron ore sintering process. China Metallurgy, 2016, 26(8): 12-16.