CaO-SiO_2-TiO_2-Al_2O_3-MgO炉渣中三价和四价Ti氧化物的氧化还原平衡

REDOX EQUILIBRIA BETWEEN Ti^(3+) AND Ti^(4+) IN CaO-SiO_2-TiO_2-Al_2O_3-MgO SLAGS

实验研究了 ＣａＯ—ＳｉＯ_２－ＴｉＯ_２－Ａｌ_２Ｏ_３－ＭｇＯ炉渣在不同温度和氧分压下，三价和四价 Ｔｉ氧化物间的氧化还原平衡．结果表明：在＜２时，与 近似呈线性关系，并可用 来判断炉渣碱度； 随全二氧化钛摩尔分数 的增大而增大；升高温度有利于渣中高价 Ｔｉ氧化物的还原（ｗ为质量分数，ｘ为摩尔分数）

An experimental study has been made by means of chemical equilibria method on redox equilibria between Ti^3+ and Ti^4+ in CaO-SiO_2-TiO_2-Al_2O_3-MgO slags at different temperatures and The results show that the dependence between and (w, mass fraction) is nearly a linear when is less than 2, the basicity of slags can be determined as and increases with, total titania mole fraction X_(Tio2,Tot) in the slags.