Effect of Ion Cluster on Concentration of Long-Alkyl-Chain Ionic Liquids Aqueous Solution by Nanofiltration

被引：10

作者：

Qian, Jianguo ^{[1
,2
]}

Liu, Xiaomin ^{[1
]}

Yan, Ruiyi ^{[1
]}

Li, Chunshan ^{[1
]}

Zhang, Xiangping ^{[1
]}

Zhang, Suojiang ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing Key Lab Ion Liquids Clean Proc,State Key, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2018年 / 57卷 / 22期

基金：

中国国家自然科学基金;

关键词：

ORGANIC-SOLVENT NANOFILTRATION; SEPARATION; RECOVERY; EXTRACTION; MEMBRANES; MIXTURES; BEHAVIOR; WATER; AGGREGATION; DEHYDRATION;

D O I：

10.1021/acs.iecr.8b01403

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

As a kind of green solvent and new material, recycling of ionic liquids (ILs) especially from aqueous solution is becoming a key barrier for industrial application. In this study, concentration process of long-alkyl-chain ILs solution with nanofiltration was proposed. The influence of ion cluster on filtration performance such as volume flux (J(v)), observed rejection (R-obs) was systematically studied. Formation and properties of ion cluster including aggregation and heterogeneity were detected and validated by experiment and molecular simulation, and influence of ion cluster on membrane fouling and reuse was studied by various characterizations. Besides, the separation process was developed for typical long-alkyl-chain IL aqueous solutions with different concentrations (l-decyl-3-methylimidazolium chloride, [C(10)mim]Cl). These fundamental data will strongly support the industrial application for ILs concentration with nanofiltration technology.

引用

页码：7633 / 7642

页数：10

共 52 条

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