Rare-earth separation based on the differences of ionic magnetic moment via quasi-liquid strategy

作     者：Na Wang Fujian Li Bangyu Fan Suojiang Zhang Lu Bai Xiangping Zhang Na Wang;Fujian Li;Bangyu Fan;Suojiang Zhang;Lu Bai;Xiangping Zhang

作者机构：College of Chemical and EngineeringZhengzhou UniversityZhengzhou 450001China CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Multiphase Complex SystemsBeijing Key Laboratory of Ionic Liquids Clean ProcessInstitute of Process Engineering and Innovation Academy for Green ManufactureChinese Academy of SciencesBeijing 100190China Ganjiang Innovation AcademyChinese Academy of SciencesGanzhou 341000China College of ChemistryNanchang UniversityNanchang 330031China 

出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)

年 卷 期：2022年第16卷第11期

页      面：1584-1594页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学] 

基　　金：This research was supported by the National Natural Science Foundation of China(Grant No.22008244) Rare Earth Industry Guidance Fund Project(Grant No.IAGM2020DB03) Self-Deployed Projects of Ganjiang Innovation Academy,Chinese Academy of Sciences(Grant No.E055A002) the Key Research Programof theChinese Academy of Sciences(Grant No.ZDRW-CN-2021-3-2)and Special Research Assistant Project of the Chinese Academy of Sciences 

主　　题：rare earth element different magnetic moment magnetic separation ionic liquid 

摘      要：The separation of rare earth elements is particularly difficult due to their similar physicochemical *** on the tiny differences of ionic radius,solvent extraction has been developed as the“mass methodin industry with hundreds of stages,extremely intensive chemical consumption and large capital *** differences of the ionic magnetic moment among rare earths are greater than that of ionic ***,a novel method based on the large ionic magnetic moment differences of rare earth elements was proposed to promote the separation *** earths were firstly dissolved in the ionic liquid,then the ordering degree of them was improved with the Z-bond effect,and finally the magnetic moment differences between paramagnetic and diamagnetic rare earths in quasi-liquid system were *** the separation of Er/Y,Ho/Y and Er/Ho as examples,the results showed that Er(Ⅲ)and Ho(Ⅲ)containing ionic liquids had obvious magnetic response,while ionic liquids containing Y(Ⅲ)had no *** separation factors of Er/Y and Ho/Y were achieved at 9.0 and 28.82,*** separation via quasi-liquid system strategy provides a possibility of the novel,green,and efficient method for rare earth separation.