【摘要】 对攀枝花钢铁研究院电炉熔炼钛精矿的有关反应进行热力学分析,认为在电炉熔炼过程中钛精矿中游离的FeO和Fe2O3首先被还原,然后钛精矿中的主要成分FeTiO3按下列顺序逐步被还原:FeO·TiO2→Fe+TiO2→Fe+Ti3O5→Fe+Ti2O3→Fe+TiO;MgO、CaO和Al2O3等杂质在电炉还原熔炼钛精矿的温度(2000K左右)下不可能被还原,从而进入钛渣中;电炉熔炼得到钛渣主要物相为黑钛石,玻璃体硅酸盐相.更多还原

【Abstract】 The thermodynamics of the reduction smelting of ilmenite in electric furnace is analyzed. It is shown that FeO and Fe₂O₃ in the ilmenite are first reduced, then FeTiO₃, which is the principal constituent of ilmenite, is reduced consecutively as follows: FeO·TiO₂→Fe + TiO₂→Fe + Ti₃O₅→Fe + Ti₂O3→Fe + TiO. The impurities MgO, CaO and Al₂O₃ in the ilemenite can not be reduced at the temperature of （2 000） K, thus entering the titaniferous slag principally composed of anosovite and silicate.更多还原