摘要
利用等温饱和法研究了温度对金属锂在LiCl-KCl熔盐体系中溶解度的影响。采用W电极,利用电流反向计时电位法和方波电流法研究了电流密度、LiCl含量对金属锂在熔盐中溶解速率的影响,并研究了极化对金属锂溶解速率的影响。结果表明,金属锂在LiCl-KCl中的溶解度随温度的升高而增大,在熔盐中的溶解反应为吸热反应,金属锂的溶解速率不受电流密度的影响,随LiCl含量的增加先增大后减小,溶解速率受熔盐体系黏度的影响较大。极化对金属锂溶解没有影响,锂的溶解没有电化学特性。
Effect of temperature on solubility of lithium metal in LiCl-KCl molten salt system was studied by isothermal saturation method.Effects of current density,LiCl concentration and polarization.conditions on dissolution rate of lithium.metal in LiCl-KCl molten salt system were investigated with tungsten electrode by current reverse chronopotentiometry and square wave current.The results show that solubility of lithium metal rises with increase of temperature,dissolution of lithium metal is an endothermic reaction and is not affected by current density.Dissolution of metallic lithium rises first and then drops with increase of LiCl content.Dissolution rate is greatly affected by viscosity of molten salt system.Polarization condition has no effect on dissolution of metallic lithium,and dissolution of lithium has no electrochemical characteristics.
作者
汪语扬
路贵民
于建国
WANG Yu-yang;LU Gui-min;YU Jian-guo(Engineering Research Center of Resource Process Engineering,Ministry of Education,East China University of Science and Technology,Shanghai 200237,China;National Engineering Research Center for Integrated Utilization of Salt Lake Resource,East China University of Science and Technology,Shanghai 200237,China)
出处
《有色金属（冶炼部分）》
CAS
北大核心
2020年第5期44-50,共7页
Nonferrous Metals（Extractive Metallurgy)
基金
国家重点研发计划项目(2018TFC0604806)。
关键词
金属锂
熔盐电解
溶解
极化
lithium
molten salt electrolysis
dissolution
polarization
