Phase Diagram of [Amim]Cl plus Salt Aqueous Biphasic Systems and Its Application for [Amim]Cl Recovery

被引：88

作者：

Deng, Yuefeng ^{[1
]}

Long, Tan ^{[1
,2
]}

Zhang, Dongli ^{[1
]}

Chen, Ji ^{[1
]}

Gan, Shucai ^{[2
]}

机构：

[1] Chinese Acad Sci, State Key Lab Rare Earth Resource Utilizat, Changchun Inst Appl Chem, Changchun 130022, Peoples R China

[2] Jilin Univ, Coll Chem, Changchun 130026, Peoples R China

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2009年 / 54卷 / 09期

关键词：

LIQUID-LIQUID EQUILIBRIA; IONIC LIQUID; POLYETHYLENE-GLYCOL; REACTIVE EXTRACTION; 2-PHASE SYSTEMS; WATER; SEPARATION; BEHAVIOR; MEDIA;

D O I：

10.1021/je900009a

中图分类号：

O414.1 [热力学];

学科分类号：

070201 [理论物理];

摘要：

In this study, binodal curves and tie line data of [Amim]Cl + salt (K3PO4, K2HPO4, K2CO3) + water aqueous biphasic systems (ABS) were measured and correlated satisfactorily with the Merchuk equation and Othmer-Tobias and Bancroft equations, respectively. [Amim]Cl could be recovered from aqueous solutions using the ABS, and the recovery efficiency could reach 96.80%. The recovery efficiency was influenced by the concentrations of the salts and their Homeister series: K3PO4 > K2HPO4 > K2CO3. Our method provides a new and effective route for the recovery of hydrophilic IL using [Amim]Cl + salt + water ABS from aqueous solutions.

引用

页码：2470 / 2473

页数：4

共 22 条

[1]

Extraction mechanism of Cr(VI) on the aqueous two-phase system of tetrabutylammonium bromide and (NH4)2SO4 mixture [J].