LaF_3-LiF-La_2O_3系熔盐密度的研究  

Density of LaF_3-Li F-La_2O_3 Molten Salt System

作　　者：朱小平[1] 孙树臣[1] 卢帅丹[1] 杨英[1] 涂赣峰[1] 黄小卫[2] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110819 [2]北京有色金属研究总院稀土材料国家工程研究中心,有研稀土新材料股份有限公司,北京100088

出　　处：《中国稀土学报》2015年第2期211-216,共6页Journal of the Chinese Society of Rare Earths

基　　金：国家高技术研究发展计划项目(2011AA03A409);教育部基本科研业务费项目(N110202002)资助

摘　　要：根据阿基米德定律,测定了La F3-Li F-La2O3熔盐电解质体系的密度,研究了温度、La F3的含量、La2O3加入量对体系密度的影响。结果表明：密度随着温度的升高呈明显线性降低的趋势,而随着La F3含量的增加而增大。在温度为1050℃时,La F3摩尔含量为20%~35%的该熔盐电解质体系的密度随着La2O3加入量的增加先增加后降低,在La2O3的饱和溶解度（1.5%~3%）附近达到最大值。The density of La F3-Li F-La2O3 molten salt system was determined based on Archimedes law. And the effects of temperature,LaF3 and La2O3 contents were investigated. The results showed that the density decreased linearly with the increasing of temperature and increased with the increasing of content of La F3. At 1050 ℃,with the increasing of La2O3 content,the density of this molten salt system in which the mole fraction of La F3was20% ~ 35% firstly increased and then decreased,and reached its maximum value around the saturation solubility of La2O3（ 1. 5%~ 3%） in LaF3-LiF molten salt.

关 键 词：LaF3-LiF LA2O3 熔盐 密度 稀土 

分 类 号：TF845.6[冶金工程—有色金属冶金]