Liquid–liquid equilibrium for binary and ternary systems containing di-isopropyl ether (DIPE) and an imidazolium-based ionic liquid at different temperatures

Hwang, Inchan; Kim, Jae-Ik; Park, So-Jin

doi:10.1016/j.fluid.2010.09.008

Cited by 11 publications

(4 citation statements)

References 9 publications

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“…He assumed that the total solubility parameter is made up of the additive contributions from nonpolar (dispersion) interactions, polar (dipole–dipole and dipole induced dipole) interactions, and hydrogen-bonding or other specific association interactions (including Lewis acid–base interactions). On the other hand, traditional approaches using the excess Gibbs energy models (NRTL, UNIQUAC) for correlating phase equilibriums or excess molar enthalpy of mixing in binary and ternary mixtures were used. − Excellent agreement between the experimental and calculated results can be obtained using these models. Among these models, nonrandom two liquid (NRTL) model and the electrolyte-NRTL (eNRTL) model, or UNIQUAC model are quite widely used. − The NRTL model is the most used model for equillibrium data correlation with ILs but not for systems involving electrolytes.…”

Section: Thermomorphic Systems Based On Ionic Liquids (Ils)mentioning

confidence: 99%

Temperature-Responsive Ionic Liquids: Fundamental Behaviors and Catalytic Applications

et al. 2017

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Temperature-responsive ionic liquids (ILs), their fundanmental behaviors, and catalytic applications were introduced, especially the concepts of upper critical solution temperature (UCST) and lower critical solution temperature (LCST). It is described that, during a catalytic reaction, they form a homogeneous mixture with the reactants and products at reaction temperature but separate from them afterward at ambient conditions. It is shown that this behavior offers an effective alternative approach to overcome gas/liquid-solid interface mass transfer limitations in many catalytic transformations. It should be noted that IL-based thermomorphic systems are rarely elaborated until now, especially in the field of catalytic applications. The aim of this article is to provide a comprehensive review about thermomorphic mixtures of an IL with HO and/or organic compounds. Special focus is laid on their temperature dependence concerning UCST and LCST behavior, including systems with conventional ILs, metal-containing ILs, polymerized ILs, as well as the thermomorphic behavior induced via host-guest complexation. A wide range of applications using thermoregulated IL systems in chemical catalytic reactions as well as enzymatic catalysis were also demonstrated in detail. The conclusion is drawn that, due to their highly attractive behavior, thermoregulated ILs have already and will find more applications, not only in catalysis but also in other areas.

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Section: Thermomorphic Systems Based On Ionic Liquids (Ils)mentioning

confidence: 99%

Temperature-Responsive Ionic Liquids: Fundamental Behaviors and Catalytic Applications

et al. 2017

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“…For the past years, the properties of ionic liquids (ILs) have been the subject of considerable interest, especially because of their unique physicochemical properties, such as their almost null vapor pressure; high thermal and chemical stability; and, capability to dissolve polar, nonpolar, organic, and inorganic materials. , The literature presents different academic and industrial applications for ionic liquids which include their usage as reaction media for catalysis reactions, as media for CO 2 absorption, − and also as solvents on liquid–liquid extraction operations. − …”

Section: Introductionmentioning

confidence: 99%

Development of a New Group Contribution Method Based on GCVOL Model for the Estimation of Pure Ionic Liquid Density over a Wide Range of Temperature and Pressure

Evangelista

Carmo

Santiago-Aguiar

et al. 2014

Ind. Eng. Chem. Res.

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A new group contribution method based on GCVOL model developed by Elbro et al. in 1991 [Elbro, H. S.; Fredenslund, A.; Rasmussen, P. Ind. Chem. Eng. Res. 1991, 30, 2576–2582] is proposed for the estimation of ionic liquids density over a wide range of temperature and pressure. A total of 102 new groups for ionic liquids were introduced to the already 60 existing groups revised and proposed in 2003 by Ihmels and Gmehling [Ihmels, E. C.; Gmehling, J. Ind. Chem. Eng. Res. 2003, 42, 408–412]. These groups were proposed based on a collection of density data from literature. The databank contains data of 864 different ionic liquids, including dicationic and tricationic species, and a total of 21 845 data points, covering a temperature range of 251.62–473.15 K and a pressure range of 0.1–300.0 MPa. An average absolute relative deviation (%AARD) of 0.83% was obtained, indicating that our model is able to predict densities of a great variety of ionic liquids accurately.

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“…below). The absence of such phenomena is similar systems with non-functionalized ionic liquid ions [60][61][62][63] supports such view.…”

Section: Resultsmentioning

confidence: 56%

“…33 To our knowledge this is the first report on a functionalized ionic liquid plus ether system (composed of small ether molecules and not polyether polymers 56 ) exhibiting a LCST behavior. In fact the few studies involving ionic liquid plus ether systems have shown the more common UCST-type behavior: Hwang et al studied the liquid-liquid equilibria of di-isopropyl ether with 1-ethyl-3-methylimidazolium ethylsulfate and 1-ethyl-3-methylimidazolium tetrafluoroborate; 60 Domanska et al tested 1-ethyl-3-methylimidazolium ethylsulfate with some of the ethers used in this work; 61,62 63 all these studies reported the occurrence of UCST phenomena. It must be noted that the significant difference between the ionic liquids just referred and the ionic liquids studied in the present work is the presence of the hydroxyl group at the end of the ethyl chain of the cholinium cation.…”

Section: Introductionmentioning

confidence: 86%

Unusual LCST-type behaviour found in binary mixtures of choline-based ionic liquids with ethers

et al. 2013

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Liquid–liquid equilibrium for binary and ternary systems containing di-isopropyl ether (DIPE) and an imidazolium-based ionic liquid at different temperatures

Cited by 11 publications

References 9 publications

Temperature-Responsive Ionic Liquids: Fundamental Behaviors and Catalytic Applications

Temperature-Responsive Ionic Liquids: Fundamental Behaviors and Catalytic Applications

Development of a New Group Contribution Method Based on GCVOL Model for the Estimation of Pure Ionic Liquid Density over a Wide Range of Temperature and Pressure

Unusual LCST-type behaviour found in binary mixtures of choline-based ionic liquids with ethers

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