高炉型熔渣中TiO_2的活度  

ACTIVITY OF TiO_2 IN MOLTEN BLAST FURNACE SLAG CONTAINING TITANIUM OXIDE

作　　者：刘焕明[1] 杜红[1] 杨祖磐[2] 李国栋[3] 杜昆[3] 

机构地区：[1]本溪钢铁公司,工程师辽宁本溪117021 [2]东北工学院 [3]冶金工业部钢铁研究总院

出　　处：《金属学报》1992年第2期B045-B049,共5页Acta Metallurgica Sinica

基　　金：国家自然科学基金

摘　　要：在1500℃下用金属Sn作熔剂,石墨作还原剂,采用“熔渣—金属Sn”化学平衡法和相图计算法,得到了高炉型熔渣中TiO_2的活度,并讨论了渣中TiO_2的活度和活度系数随其浓度变化的规律。Activity of TiO_2 in the molten blast furnaee slag containing titanium oxide has been examined at 1500℃ by means of 'molten slag-Sn' chemical equilibrium method, using metallic Sn as flux and graphite as deoxidizer, together with phase diagram calculation. In the pentary slag sys-tem CaO--MgO--SiO_2--TiO_2--Al_2O_3, a_(TiO_2)=0.01--0.05 or 0.02--0.10 with pure liquid or solid TiO_2 as normal state, respectively. The activity and activity coefficient of TiO_2 in relation to concen-tration of titanium oxide have been discussed.

关 键 词：TIO2 活度 高炉 熔渣 

分 类 号：TF534.1[冶金工程—钢铁冶金]