Recovery and purification of ionic liquids from solutions: a review

被引：204

作者：

Zhou, Jingjing ^{[1
,2
]}

Sui, Hong ^{[1
,2
,3
]}

Jia, Zhidan ^{[1
,2
]}

Yang, Ziqi ^{[1
,2
]}

He, Lin ^{[1
,2
,3
]}

Li, Xingang ^{[1
,2
,3
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China

[2] Natl Engn Res Ctr Distillat Technol, Tianjin 300072, Peoples R China

[3] Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China

来源：

RSC ADVANCES | 2018年 / 8卷 / 57期

基金：

中国国家自然科学基金;

关键词：

AQUEOUS BIPHASIC SYSTEMS; IN-SITU CRYSTALLIZATION; SUPERCRITICAL CARBON-DIOXIDE; HIGH-PRESSURE; SOLVENT-EXTRACTION; ACTIVATED CARBON; CELLULOSE DISSOLUTION; BACTERIAL BIOSORBENTS; SELECTIVE SEPARATION; ASSISTED SEPARATION;

D O I：

10.1039/c8ra06384b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

With low melting point, extremely low vapor pressure and non-flammability, ionic liquids have been attracting much attention from academic and industrial fields. Great efforts have been made to facilitate their applications in catalytic processes, extraction, desulfurization, gas separation, hydrogenation, electronic manufacturing, etc. To reduce the cost and environmental effects, different technologies have been proposed to recover the ionic liquids from different solutions after their application. This review is mainly focused on the recent advances of the recovery and purification of ionic liquids from solutions. Several methods for recovery of ionic liquids including distillation, extraction, adsorption, membrane separation, aqueous two-phase extraction, crystallization and external force field separation, are introduced and discussed systematically. Some industrial applications of ionic liquid recovery and purification methods are selected for discussion. Additionally, considerations on the combined design of different methods and process optimization have also been touched on to provide potential insights for future development of ionic liquid recovery and purification.

引用

页码：32832 / 32864

页数：33

共 226 条

[1] Simple purification of ionic liquid solvents by nanofiltration in biorefining of lignocellulosic substrates [J].