Electrochemical deposition of Nd and Nd-Fe alloy from Cu6Nd alloy in a NaCl-KCl-NdCl3 melt  

作　　者：Chen-teng Sun Qian Xu Yan-ping Xiao Yong-xiang Yang 

机构地区：[1]State Key Laboratory of Advanced Special Steel,School of Material Science and Engineering,Shanghai University,Shanghai 200072,China [2]Department of Materials Science and Engineering,Delft University of Technology,Delft 2628 CD,The Netherlands [3]Department of Metallurgical Engineering,Anhui University of Technology,Ma'anshan 243002,China

出　　处：《International Journal of Minerals,Metallurgy and Materials》2020年第12期1650-1656,共7页矿物冶金与材料学报（英文版）

基　　金：the National Natural Science Foundation of China(Nos.51574163 and 51174055);financially supported by the Chinese Scholarship Council(CSC)。

摘　　要：Electrorefining effectively separates metals from their corresponding alloys.To obtain Nd from Cu6 Nd alloy,cyclic voltammetry and square wave voltammetry were used to investigate the reduction behavior of Nd^(3+) and the anode dissolution behavior of Cu6 Nd in the Na Cl-KCl-0.5 mol%Nd Cl3 melt at 1023 K.According to the analysis of the electrochemical behavior,the cell voltage was determined to be between 0.3 and 1.2 V for separating Nd from Cu6 Nd.After electrolysis at 0.6 V for 4 h,the Nd was found at the surface of the Mo cathode without any Cu.For the Fe cathode,a deposition with an atom ratio of Nd:Fe=1:1 was formed on the surface.However,the low current density of separation remains a great experimental challenge that must be solved.

关 键 词：Cu6Nd alloy molten salt electrochemical separation NaCl-KCl-NdCl3 

分 类 号：TF841.6[冶金工程—有色金属冶金]