[Omim][BF_(4)]/OP-10/苯甲醇/环己烷/P204/HCl体系萃取La^(3+)的研究  

Extraction of La^(3+) with[OMIM][BF_(4)]/OP-10/Benzyl Alcohol/Cyclohexane/P204/HCl System

作　　者：何金桂 李勇 董国桢 单子萱 He Jin-gui;Li Yong;Dong Guo-zhen;Shan Zi-xuan

机构地区：[1]沈阳理工大学材料科学与工程学院,辽宁沈阳110159 [2]东北大学冶金学院,辽宁沈阳110819

出　　处：《化工设计通讯》2022年第3期99-100,114,共3页Chemical Engineering Design Communications

基　　金：国家自然科学基金项目(51904192,52074082,51804071);辽宁省博士科研启动基金计划项目(2020-BS-155);辽宁省教育厅基本科研项目(面上项目)(LJKZ0248);沈阳理工大学引进高层次人才科研支持计划项目(1050002000611)。

摘　　要：稀土金属是现代不可或缺的重要战略资源,将由离子液体协同或代替微乳液组分而构建的离子液体微乳液应用于稀土的富集,对低浓度稀土萃取化学的完善具有十分重要的意义。主要研究了[Omim][BF_(4)]/OP-10/苯甲醇/环己烷/P204/HCl离子液体微乳液体系的构筑,并采用电导率法对其结构进行表征,结果发现,该体系在水相较少时形成了W/O结构。当各组分百分比为:[Omim][BF_(4)]6%、OP-10 17%、苯甲醇27%、环己烷48%、P204 2%时,对稀土元素La^(3+)的萃取率可达到99%。Rare earth metal is an indispensable strategic resource in modern times.Ionic liquid microemulsion,which is constructed by collaboration or substitution of microemulsion components with ionic liquid,is applied to the enrichment of rare earth element.It is of great significance to improve the extraction chemistry of low concentration rare earth elements.In this paper,the construction of[Omim][BF_(4)]/OP-10/benzyl alcohol/cyclohexane/P204/HCl ionic liquid microemulsion system was studied,and its structure was characterized by conductivity method.It was found that the W/O structure was formed when the aqueous phase was relatively small.When the percentage of each component is[OMIM][BF_(4)]6%,OP-10 17%,benzyl alcohol 27%,cyclohexane 48% and P204 2%,the extraction rate of rare earth element La^(3+)can reach 99%.

关 键 词：离子液体 微乳液 La^(3+)萃取 

分 类 号：O642.42[理学—物理化学]