UF_(6)-MoF_(6)二元体系相对挥发度的测定  

Determination of Relative Volatility of Binary System Between UF and MoF

作　　者：姜海英 武国章 程若玉 Jiang Haiying;Wu Guozhang;Cheng Ruoyu(Beijing Goyuan New Technology Limited Liability Company,Beijing 102413,China;The First Filial Company of 404 Company Limited,China National Nuclear Corporation,Lanzhou,Gansu 732850,China)

机构地区：[1]北京国原新技术有限公司,北京102413 [2]中核四〇四有限公司,甘肃兰州732850

出　　处：《化学世界》2021年第5期316-320,共5页Chemical World

摘　　要：根据静态法测量液体饱和蒸汽压的实验原理,设计、建立了饱和蒸汽压测定的实验系统。实验测定的六氟化铀饱和蒸汽压数据相对误差<1%。利用饱和蒸汽压测定实验系统,在温度为60~95℃范围内,分别测定了不同浓度的UF_(6)-MoF_(6)二元体系的饱和蒸汽压,计算了其相对挥发度。在实验条件下,UF_(6)-MoF_(6)二元体系相对挥发度的变化范围为1.377~3.444;在测定的温度和浓度范围内,随温度增加,相对挥发度降低。According to the principle of static method, an experimental system for measuring the saturated vapor pressure of uranium hexafluoride impurity system has been built. The saturated vapor pressure data of UF_(6) obtained from the experiments coincides well with literature values. The relative error is less than 1%. The saturated vapor pressure of the system with different concentrations were determined in the temperature from 60~95 ℃. The relative volatility of impurity elements in the corresponding state has been calculated. Under experimental conditions, the relative volatility of UF_(6)-MoF_(6) binary system varies between 1.377 and 3.444. In the range of determined temperature and concentration, the relative volatility of Mo reduced with the raising of temperature.

关 键 词：相对挥发度 饱和蒸汽压 静态法 六氟化铀 UF_(6)-MoF_(6) 

分 类 号：O615.1[理学—无机化学]