New Insight into Phase Equilibria Involving Imidazolium Bistriflamide Ionic Liquids and Their Mixtures with Alcohols and Water

被引：16
作者：
Pereiro, Ana B. [1 ,2 ]
Deive, Francisco J. [1 ,2 ]
Rodriguez, Ana [2 ]
Ruivo, Diana [1 ]
Canongia Lopes, Jose N. [1 ,3 ]
Esperanca, Jose M. S. S. [1 ]
Rebelo, Luis P. N. [1 ]
机构：
[1] Univ Nova Lisboa, Inst Tecnol Quim & Biol, P-2780901 Oeiras, Portugal
[2] Univ Vigo, Dept Chem Engn, Vigo 36310, Spain
[3] Univ Tecn Lisboa, Inst Super Tecn, Ctr Quim Estrutural, P-1049001 Lisbon, Portugal
来源：
JOURNAL OF PHYSICAL CHEMISTRY B | 2010年 / 114卷 / 27期
关键词：
TEMPERATURE; BEHAVIOR; EXTRACTION; PRESSURE; NONPOLAR; ETHANOL; UNIQUE;
D O I：
10.1021/jp104245g
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 fluid phase equilibria (liquid-liquid demixing behavior (LLE)) of mixtures of ionic liquids of the 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide family, [C(n)mim][NTf2], with 2-methylpropanol or n-octanol were investigated. Binary mixtures of [C(4)mim][NTf2] + alcohol and [C(6)mim][NTf2] + alcohol were compared to pseudobinary mixtures of (0.5[C(2)mim] + 0.5[C(6)mim])[NTf2] + alcohol and (0.5[C(2)mim] + 0.5[C(10)mim])[NTf2] + alcohol, respectively. Additionally, the presence of water in the studied alcohols or as a third component in the system was analyzed in order to check any possible deviation from the LLE observed for the anhydrous systems. Systems containing small fractions of ionic liquid show similar LLE between the corresponding binary and pseudobinary systems; however, large differences are observed in the presence of water when the IL mass fraction is increased.
引用
收藏
页码：8978 / 8985
页数：8
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