熔盐电解法制备镨钕铈合金的研究  

Preparation of Pr-Nd-Ce Alloys by Molten Salt Electrolysis

作　　者：于兵[1] 刘玉宝[1] 张全军 黄海涛 康佳 闫奇操 YU Bing;LIU Yu-bao;ZHANG Quan-jun;HUANG Hai-tao;KANG Jia;YAN Qi-cao(State KeyLaboratory of Bayan Obo Rare Earth Resource Research and Comprehensive Utilization,Baotou Research Institute of Rare Earths,Baotou 014030,Inner Mongolia,China)

机构地区：[1]包头稀土研究院白云鄂博稀土资源研究与综合利用国家重点实验室,内蒙古包头014030

出　　处：《有色金属（冶炼部分）》2021年第4期90-95,共6页Nonferrous Metals（Extractive Metallurgy)

基　　金：内蒙古自治区应用技术研究与开发资金项目(201802009);白云鄂博稀土资源研究与综合利用国家重点实验室自主课题(2019Z2055,2020Z2132)。

摘　　要：利用500A规模电解槽,在氟化锂-氟化镨钕-氟化铈熔盐体系中,以氧化铈与氧化镨钕混合物为电解原料,制备了不同金属配分的镨钕铈合金。研究了不同电解质组成、电解温度(980~1 060℃)以及加料速度对电解过程的影响。研究表明,电解质组成是控制合金中金属配分的关键因素,同时电解温度对金属配分的影响不大。但电解温度偏低或者加料速度偏慢会使电解质液面上升,导致"熔盐外溢"现象的发生。Different compositions of Pr-Nd-Ce alloys were prepared by molten salt electrolysis in lithium fluoride-praseodymium neodymium fluoride-cerium fluoride system.500 Ascale electrolytic cell was used as apower source,and cerium oxide and praseodymium neodymium oxide were used as raw materials.Effects of electrolyte composition,temperature(980-1 060 ℃)and feed rate on electrolysis process were studied.The results show that electrolyte composition is the key to control stability of metal composition.However,temperature has little effect on metal composition.A low temperature or slow feed rate will bring increase of electrolyte liquid level.

关 键 词：熔盐电解 镨钕铈合金 电流效率 

分 类 号：TF13[冶金工程—冶金物理化学] TG146.45[一般工业技术—材料科学与工程]