熔盐电解精炼制备高纯铪工艺研究进展  

Preparation and Refining of Metal hafnium

作　　者：贾雷 严红燕 李慧 刘畅 张帅 Jia Lei;Yan Hong Yan;Li Hui;Liu Chang;Zhang Shuai(Key Laboratory of Ministry of Education for Modem Metallurgy Technology,School of Metallurgy and Energy,North China University of Science and Technology,Tangshan,Hebei,China)

机构地区：[1]华北理工大学冶金与能源学院现代冶金技术教育部重点实验室,河北唐山063009

出　　处：《矿产综合利用》2020年第1期33-38,共6页Multipurpose Utilization of Mineral Resources

基　　金：国家自然科学基金项目(51674120、51874141);河北省自然科学基金资助项目(E2016209163,E2018209266);河北省高等学校科学技术研究项目(BJ2017050)。

摘　　要：核能工业的快速发展,所需铪的纯度越来越高,简单的热还原法生产的金属铪不能满足人们的需求。现在熔盐电解精炼利用不同金属在阴极析出的电位不同进行电解精炼,而电解所需的溶质HfCl4、K2HfCl6、K2HfF6等,熔盐体系的选取,电解温度的设定,溶质加入量和阴极电流密度及电解时间都对电流效率和产品纯度产生重要影响。选择合理的工艺参数对生产原子能级海绵铪有重要的意义。With the rapid development of the nuclear energy industry,the purity of the required ruthenium is getting higher and higher,and the metal ruthenium produced by the simple thermal reduction method cannot meet the needs of people.Now molten salt electrolytic refining uses different metals to conduct electrolytic refining at different potentials in the cathode,and the solute HfCl4,K2HfCl6,K2HfF6,etc.required for electrolysis,the choice of molten salt system includes pure chloride system and chloride and fluoride mixed system.The selection of reasonable process parameters is of great significance for the production of atomic energy sponges.

关 键 词：熔盐体系 溶质加入量 电解温度 电解时间 阴极电流密度 

分 类 号：TD989[矿业工程—选矿]