Application of mutually immiscible ionic liquids to the separation of aromatic and aliphatic hydrocarbons by liquid extraction: a preliminary approach

被引：74
作者：
Arce, Alberto [1 ]
Earle, Martyn J. [2 ]
Katdare, Suhas P. [2 ]
Rodriguez, H. [1 ,2 ]
Seddon, Kenneth R. [2 ]
机构：
[1] Univ Santiago De Compostela, Dept Chem Engn, E-15782 Santiago De Compostela, Spain
[2] Queens Univ Belfast, QUILL Ctr, Belfast BT9 5AG, Antrim, North Ireland
来源：
PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2008年 / 10卷 / 18期
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1039/b718101a
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The recently discovered class of ionic liquids-mutually immiscible ionic liquids-are explored in this work for their first practical application: the separation of aromatic and aliphatic hydrocarbons by solvent extraction. For this preliminary approach, benzene and hexane were chosen as representatives of each group of hydrocarbons; the ionic liquids 1-ethyl-3-methylimidazolium bis{(trifluoromethyl)sulfonyl}amide and trihexyl(tetradecyl)phosphonium bis{(trifluoromethyl)sulfonyl}amide, which are both liquid at room temperature and hydrophobic, were selected as potential solvents. Liquid-liquid equilibrium experiments were carried out at 25 degrees C for the quaternary system formed by the two hydrocarbons and the two ionic liquids. Typical extraction parameters were calculated and analysed in order to evaluate the possibilities of the mutual immiscible ionic liquids in accomplishing the separation target. A comparison with the case of using just one of the ionic liquids was made.
引用
收藏
页码：2538 / 2542
页数：5
相关论文
共 30 条
[1]   Quaternary liquid-liquid equilibria of systems with two partially miscible solvent pairs:: 1-octanol plus 2-methoxy-2-methylpropane plus water plus ethanol at 25°C [J].
Arce, A ;
Blanco, M ;
Soto, A .
FLUID PHASE EQUILIBRIA, 1998, 146 (1-2) :161-173
[2]   Phase equilibria of mixtures of mutually immiscible ionic liquids [J].
Arce, Alberto ;
Earle, Martyn J. ;
Katdare, Suhas P. ;
Rodriguez, Hector ;
Seddon, Kenneth R. .
FLUID PHASE EQUILIBRIA, 2007, 261 (1-2) :427-433
[3]   Separation of aromatic hydrocarbons from alkanes using the ionic liquid 1-ethyl-3-methylimidazolium bis{(trifluoromethyl) sulfonyl} amide [J].
Arce, Alberto ;
Earle, Martyn J. ;
Rodriguez, Hector ;
Seddon, Kenneth R. .
GREEN CHEMISTRY, 2007, 9 (01) :70-74
[4]   Separation of benzene and hexane by solvent extraction with 1-alkyl-3-methylimidazolium bis{(trifluoromethyl)sulfonyl}amide ionic liquids:: Effect of the alkyl-substituent length [J].
Arce, Alberto ;
Earle, Martyn J. ;
Rodriguez, Hector ;
Seddon, Kenneth R. .
JOURNAL OF PHYSICAL CHEMISTRY B, 2007, 111 (18) :4732-4736
[5]   Mutually immiscible ionic liquids [J].
Arce, Alberto ;
Earle, Martyn J. ;
Katdare, Suhas P. ;
Rodriguez, Hector ;
Seddon, Kenneth R. .
CHEMICAL COMMUNICATIONS, 2006, (24) :2548-2550
[6]   On the extraction of aromatic compounds from hydrocarbons by imidazolium ionic liquids [J].
Cassol, Claudia C. ;
Umpierre, Alexandre P. ;
Ebeling, Guenter ;
Ferrera, Bauer ;
Chiaro, Sandra S. X. ;
Dupont, Jairton .
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 2007, 8 (07) :593-605
[7]   Liquid-liquid equilibria for ternary mixtures (an ionic liquid plus benzene plus heptane or hexadecane) at T = 298.2 K and atmospheric pressure.(vol 51, pg 988, 2006) [J].
Deenadayalu, Nirmala ;
Ngcongo, Khulekani C. ;
Letcher, Trevor M. ;
Ramjugernath, Deresh .
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2007, 52 (01) :318-318
[8]   Liquid-liquid equilibria for ternary mixtures (an ionic liquid plus benzene plus heptane or hexadecane) at T=298.2 K and atmospheric pressure [J].
Deenadayalu, Nirmala ;
Ngcongo, Khulekani C. ;
Letcher, Trevor M. ;
Ramjugernath, Deresh .
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2006, 51 (03) :988-991
[9]   Effect of an ionic liquid (IL) cation on the ternary system (IL plus p-xylene plus hexane) at T=298.15 K [J].
Domanska, Urszula ;
Pobudkowska, Aneta ;
Zolek-Tryznowska, Zuzana .
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2007, 52 (06) :2345-2349
[10]   Separation of aromatic hydrocarbons from alkanes using ammonium ionic liquid C2NTf2 at T=298.15 K [J].
Domanska, Urszula ;
Pobudkowska, Aneta ;
Krolikowski, Marek .
FLUID PHASE EQUILIBRIA, 2007, 259 (02) :173-179
123