LiF-CeF_(3)-CeO_(2)熔盐体系密度的影响因素研究  

Density Impacts of LiF-CeF_(3)-CeO_(2) Molten Salt System

作　　者：李忠岐[1] 陈淑梅[1,2] 洪侃 梁鑫[1] 徐建兵 赖耀斌 陈东英[1] 蔡伯清[2] Li Zhongqi;Chen Shumei;Hong Kan;Liang Xin;Xu Jianbing;Lai Yaobin;Chen Dongying;Cai Boqing(Ganzhou Nonferrous Metallurgy Research Institute,Ganzhou 341000,China;Faculty of Materials Metallurgy and Chemistry,Jiangxi University of Science and Technology,Ganzhou 341000,China)

机构地区：[1]赣州有色冶金研究所,江西赣州341000 [2]江西理工大学材料冶金化学学部,江西赣州341000

出　　处：《中国稀土学报》2021年第2期282-286,I0003,共6页Journal of the Chinese Society of Rare Earths

基　　金：国家自然科学基金项目(51674126);江西省重点研发项目(20192BBE50027)资助。

摘　　要：在运用熔盐电解法制备金属Ce的基础上,为了进一步优化电解过程的工艺参数,采用阿基米德法对LiF-CeF_(3)-CeO_(2)熔盐体系密度进行了研究,考察了温度、CeO_(2)加入量、熔盐中CeF_(3)的含量对熔盐体系密度的影响。结果表明:在LiF-CeF_(3)熔盐体系中,当CeF_(3)和CeO_(2)的含量一定时,密度随着温度的升高而降低,其密度范围在3.1~3.6 g·cm^(-3)之间;在温度和CeF_(3)加入量一定时,LiF-CeF_(3)-CeO_(2)熔盐的密度随着CeO_(2)加入量的增加而增大,并且每增加1%CeO_(2),熔盐密度升高约0.022 g·cm^(-3);在CeO_(2)加入量和温度一定时,添加CeF_(3)质量百分含量越高,体系熔盐密度越大。In order to further optimize the electrolysis process parameters on the basis of exploring the method for preparing Ce in LiF-CeF_(3)-CeO_(2) molten salt,the density of LiF-CeF_(3)-CeO_(2) molten salt system was determined by Archimedes method.The effects of the temperature,the addition of CeO_(2),the content of CeF_(3) in molten salt on the density of molten salts were studied.The results showed that the density of molten salt system decreases regularly with the increase of temperature,and increases with the addition of CeO_(2) and the ratio of w(CeF_(3))to w(LiF)in mixed oxidation.The density range is 3.1~3.6 g·cm^(-3).With the increase of 1%CeO_(2),the density of molten salt increases about 0.022 g·cm^(-3).

关 键 词：熔盐体系 密度 Li F-CeF_(3) CeO_(2) 

分 类 号：TF845.6[冶金工程—有色金属冶金]