摘要
在1500℃下以金属锡作熔剂,石墨作还原剂,采用“熔渣-金属锡”化学平衡法,测定了含氧化钛高炉渣中氧化钙的活度。讨论了渣中氧化钙的活度系数随氧化钛的浓度及氧化镁浓度的变化规律。给出了适用于此渣系的碱度公式。
The activity of calcium oxide in blast-furnace-type slags containing titanium oxides was determined using the method of slag in equilibrium with liquid tin under 1 500℃,taking tin as flux and graphite as reducer.The variation behaviors of activity and activity coefficient of CaO with the concentration of titanium oxides and magnesium oxides in slag are discussed, with basicity expression for this slag system given.
关键词
高炉型渣
氧化钙
活度
碱度
氧化钛
blast-furnace-type slag, calcium oxide, activity basicity titanium oxide.
