离子液体萃取分离液相中酚类物质的研究进展  

Research advances of extraction separation of phenolic compounds by ionic liquids

作　　者：齐亚兵 刘子炎 QI Yabing;LIU Ziyan(School of Chemistry and Chemical Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,Shaanxi,China)

机构地区：[1]西安建筑科技大学化学与化工学院,陕西西安710055

出　　处：《化工进展》2024年第10期5765-5777,共13页Chemical Industry and Engineering Progress

基　　金：西安市碑林区科技计划(GX2323);西安建筑科技大学人才科技基金(RC1714);西安建筑科技大学青年科技基金(QN1509)。

摘　　要：离子液体包括咪唑类、胆碱类、铵类、季类、吡啶类、吡咯烷类等,是一种具有难挥发、不易燃、对热稳定、溶解能力强等优点的绿色溶剂,可充当高效萃取剂或萃取添加剂,用于液相中酚类物质的萃取分离。本文系统地介绍了不同类型离子液体萃取液相中酚类物质的机制和性能,全面追踪了离子液体萃取分离液相中酚类物质的最新研究进展,深入解析了离子液体萃取液相中酚类物质过程的影响因素,整体上分析了离子液体萃取液相中酚类物质存在的问题,最后展望了离子液体萃取液相中酚类物质的发展前景。未来离子液体萃取液相中酚类物质技术的发展方向为以下三个方面:一方面,开发低黏度、低水溶性、低毒性、低成本、高稳定性、高萃取率、高选择性、容易生物降解的离子液体;另一方面,离子液体容易与萃余相分离,回收后的离子液体可多次循环使用且能保持较好的萃取性能;最后,离子液体萃取剂与萃取器要高度统一、有机结合,才能达到最佳的萃取效能。Ionic liquids contain imidazolium-based,choline-based,amine-based,quaternary phosphonium-based,pyridinium-based,and pyrrolidinium-based ionic liquids,etc.Ionic liquids are described as green solvents due to their characteristics such as low volatility,nonflammability,thermal stability,and high solubility.Therefore,ionic liquids could be used as efficient extractants or extraction additives for extraction of phenolic compounds in liquid phase.The extraction mechanism and performance of phenolic compounds with different kinds of ionic liquids are reviewed systematically.Then,the latest research progress on extraction and separation of phenolic compounds in liquid phase by ionic liquids are comprehensively summarized.Besides,the influencing factors on extraction of phenolic compounds in liquid phase by ionic liquids are deeply analyzed.Furthermore,the existing problems and development prospect are discussed.In the future,the progress of extraction of phenolic compounds in liquid phase by ionic liquids are mainly in the following three aspects.The used ionic liquids would better have low viscosity,low water solubility,low cost,low toxicity,high stability,high extraction efficiency,high selectivity and high biodegradability.The ionic liquids and the raffinate are facile phase separation and liquids are easily reclaimed from the rich extract phase.The recycled ionic liquids could be reused multiple times and maintain good performance.The ionic liquid extractants and extractors would be highly integrated in order to build a complete extraction system and realize high extraction efficiency.

关 键 词：离子液体 萃取 分离 回收 酚类物质 废物处理 

分 类 号：TQ028.3[化学工程]