Electroextraction of neodymium from LiCl-KCl melt using binary liquid Ga-Al cathode

作     者：Li Ding Xuepeng Wang Yongde Yan Valeri Smolenski Wenda Xu Alena Novoselova Yun Xue Fuqiu Ma Xingmei Zhang Li Ding;Xuepeng Wang;Yongde Yan;Valeri Smolenski;Wenda Xu;Alena Novoselova;Yun Xue;Fuqiu Ma;Xingmei Zhang

作者机构：Key Laboratory of Superlight Materials and Surface TechnologyMinistry of EducationCollege of Materials Science and Chemical EngineeringHarbin Engineering UniversityHarbin 150001China Yantai Research Institute of Harbin Engineering UniversityYantai 264006China Institute of High-Temperature Electrochemistry UB RASEkaterinburg 620990Russia Department of Rare Metals and NanomaterialsInstitute of Physics and TechnologyUral Federal UniversityEkaterinburg 620990Russia Yantai Standard Metrology Inspection&Test CenterNational Steam Flowrate Measurement StationYantai 264000China 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2023年第41卷第8期

页      面：1250-1257,I0005页

核心收录：

学科分类：080603[工学-有色金属冶金] 0817[工学-化学工程与技术] 08[工学] 0806[工学-冶金工程] 

基　　金：supported by the National Natural Science Foundation of China(21976047,22176045,21790373) the Sino-Russian Cooperation Fund of Harbin Engineering University(2021HEUCRF004) the University and Local Integration Development Project of Yantai(2020XDRHXMPT36) 

主　　题：Rareearths Electroextraction Spent nuclear fuel Pyrochemical processing Lanthanides Binary liquid cathode 

摘      要：The electrochemical behaviour of Nd(Ⅲ)ion was investigated on inert W,active Ga and Ga-AI *** is established that the reduction of Nd(Ⅲ)ion on the inert electrode is a consecutive two-step process while that on the active electrodes is a one-step *** apparent standard potential of the Nd(Ⅲ)/Nd redox couple at different temperatures was determined by open-circuit chronopotentiometry and semi-differential method,and the relationship between temperature and apparent standard potential was further *** thermodynamic properties of Nd in Ga and Ga-Al electrodes such as activity coefficient and activity were evaluated via intermittent coulomb titration and temperature dependence test,and the effect of temperature on activity coefficient was ***,Nd was successfully extracted in form of alloy from molten salt by galvanostatic electrolysis,in which the current efficiency of91.7%for the electroextraction indicates that the binary liquid Ga-Al electrode has favorable performance.