含镉铊物料中组元镉和铊活度系数的测定研究  

Research and Determination of Activity Coefficients of Cd and Tl Components in Cd and Tl Materials

作　　者：姚顺忠[1,2] 戴永年[2] 黄浩[1] 

机构地区：[1]西南林业大学交通机械与土木工程学院,云南昆明650224 [2]昆明理工大学真空冶金及材料研究所,云南昆明650093

出　　处：《昆明理工大学学报（自然科学版）》2011年第5期20-25,共6页Journal of Kunming University of Science and Technology(Natural Science)

基　　金：云南省应用基础研究重点项目(2011年);云南省教育厅重点基金项目(项目编号:620067D)

摘　　要：在400～700℃范围和10～60 Pa条件下进行真空蒸馏含镉和铊等元素物料的实验,通过测定镉和铊的化学成分,计算组元的活度系数,并用最小二乘法拟合实验数据,得到镉与铊活度系数与温度、成分关系以及活度系数与温度及成分之间的关系,为真空冶金蒸馏法获取镉和铊材料提供理论依据.Materials containing Cadmium and Thallium are evaporated on the condition that the temperature is 400 -700℃and remaining pressure is 10 -60 Pa. Through chemical determination of Cadmium and Thallium, calculation of activity coefficients and fitting of the experimental data, the relationships among activity coefficients, temperature and composition are obtained, which provides a theoretical basis for separating Cadmium and Thallium by vacuum metallurgy distillation.

关 键 词：真空蒸馏 镉 铊 活度系数 

分 类 号：TF03[冶金工程—冶金物理化学]