Deep eutectic solvents for separation and purification applications in critical metal metallurgy:Recent advances and perspectives  

作　　者：Shuo Chen Shengpeng Su Yanfang Huang Bingbing Liu Hu Sun Shuzhen Yang Guihong Han 

机构地区：[1]School of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,China [2]Zhongyuan Critical Metals Laboratory,Henan Province,Zhengzhou 450001,China

出　　处：《International Journal of Minerals,Metallurgy and Materials》2025年第1期1-19,共19页矿物冶金与材料学报（英文版）

基　　金：financially supported by the Original Exploration Project of the National Natural Science Foundation of China(No.52150079);the National Natural Science Foundation of China(Nos.U22A20130,U2004215,and 51974280);the Natural Science Foundation of Henan Province of China(No.232300421196);the Project of Zhongyuan Critical Metals Laboratory of China(Nos.GJJSGFYQ202304,GJJSGFJQ202306,GJJSGFYQ202323,GJJSGFYQ202308,and GJJSGFYQ202307)。

摘　　要：Solvent extraction,a separation and purification technology,is crucial in critical metal metallurgy.Organic solvents commonly used in solvent extraction exhibit disadvantages,such as high volatility,high toxicity,and flammability,causing a spectrum of hazards to human health and environmental safety.Neoteric solvents have been recognized as potential alternatives to these harmful organic solvents.In the past two decades,several neoteric solvents have been proposed,including ionic liquids(ILs)and deep eutectic solvents(DESs).DESs have gradually become the focus of green solvents owing to several advantages,namely,low toxicity,degradability,and low cost.In this critical review,their classification,formation mechanisms,preparation methods,characterization technologies,and special physicochemical properties based on the most recent advancements in research have been systematically described.Subsequently,the major separation and purification applications of DESs in critical metal metallurgy were comprehensively summarized.Finally,future opportunities and challenges of DESs were explored in the current research area.In conclusion,this review provides valuable insights for improving our overall understanding of DESs,and it holds important potential for expanding separation and purification applications in critical metal metallurgy.

关 键 词：deep eutectic solvents preparations PROPERTIES separation and purification critical metal metallurgy 

分 类 号：TF111.3[冶金工程—冶金物理化学] TQ413[化学工程]