文献类型：期刊文献

英文题名：Applications of deep eutectic solvents for hard-to-separate liquid systems

作者：Cheng, Hongye[1];Qi, Zhiwen[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2021

卷号：274

外文期刊名：SEPARATION AND PURIFICATION TECHNOLOGY

收录：;EI(收录号：20212310454278);WOS:【SCI-EXPANDED(收录号:WOS:000668922200007)】；

基金：The financial support from National Natural Science Foundation of China (21978096, 21861132019, and 21776074) and Natural Science Foundation of Shanghai (19ZR1412600) are greatly acknowledged.

语种：英文

外文关键词：Deep eutectic solvent; Solute polarity; Liquid-liquid extraction; Associative extraction; Separation mechanism; COSMO-RS; DES stability; DES recycling

摘要：Deep eutectic solvents (DESs) are low-freezing mixtures formed by hydrogen bond donor (HBD) and acceptor (HBA). The change of HBA and HBD type or their ratio gives rise to a variation of the formed DES structure and properties. Such designable features make DESs meet the specific separation requirement for various systems. This work overviews the applications of DESs in three typical hard-to-separate liquid systems classified based on the solute polarity, namely non-polar solute, mildly polar solute, and polar solute systems. For each type of hardto-separate system, the features and problems are addressed, and the requirement for DESs are analyzed. Moreover, the separation mechanism and the guideline for screening DES are introduced, and the methods for recycling of DESs after separation are discussed. Finally, further research trends of using DESs in hard-to-separate systems are prospected.