有色金属科学与工程2024，Vol.15Issue(1)：123-129,7.DOI:10.13264/j.cnki.ysjskx.2024.01.015
NdF3在LiF熔盐中的溶解及离子结构
Dissolution and ion structure of NdF3 in LiF molten salt
摘要
Abstract
The constitution form of ions in the LiF-NdF3 molten salt system is very important for the analytical electrolytic reduction of neodymium electrode process.In this paper,the ion structure of LiF-NdF3 molten salt system was analyzed by cryoscopic method.The possible ion clusters in the molten salt system were analyzed by Temkin and Flood models and thermodynamic calculation.The results show that the dissolution model of NdF3 in LiF is consistent with TemkinⅠ,Temkin Ⅱ,Temkin Ⅵ,Temkin Ⅶ,and Flood Ⅱ,Flood Ⅵ,Flood Ⅶ.In LiF-NdF3 molten salt system with LiF as the solvent,1～2 Nd3+ ion clusters are formed in F-Nd ion clusters,and NdF3 is dissolved in LiF to form dissociative Nd3+,F-,Li+ and Li+·[NdF4]-,Li+·[Nd2F7]-,as well as 2Li+·[Nd2F8]2-molecular clusters.关键词
稀土熔盐/离子结构/冰点降低法/热力学计算Key words
rare earth molten salt/ion structure/cryoscopic method/thermodynamic calculation分类
矿业与冶金引用本文复制引用
付赞辉,阙靓华,廖春发,王旭,周迅..NdF3在LiF熔盐中的溶解及离子结构[J].有色金属科学与工程,2024,15(1):123-129,7.基金项目
国家自然科学基金资助项目(52174335) （52174335）
国家自然科学基金资助项目(52074134) （52074134）
