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Thermodynamic Description of Liquid-Liquid Equilibria in Systems 1-Ethyl-3-methylimidazolium Ethylsulfate + C7-Hydrocarbons by Polymer-Solution Models

SYSNO ASEP	0330735
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Thermodynamic Description of Liquid-Liquid Equilibria in Systems 1-Ethyl-3-methylimidazolium Ethylsulfate + C7-Hydrocarbons by Polymer-Solution Models
Title	Termodynamický popis rovnováhy kapalina-kapalina v systémech 1-ethyl-3-methylimidazolium ethylsulfát + C7-uhlovodíky modely pro roztoky polymerů
Author(s)	Bendová, Magdalena (UCHP-M)_{RID, ORCID, SAI} Wagner, Zdeněk (UCHP-M)_{RID, SAI, ORCID}
Source Title	Fluid Phase Equilibria. - : Elsevier - ISSN 0378-3812 Roč. 284, č. 2 (2009), s. 80-85
Number of pages	6 s.
Language	eng - English
Country	NL - Netherlands
Keywords	liquid-liquid equilibrium ; ionic liquids ; thermodynamic model
Subject RIV	CF - Physical ; Theoretical Chemistry
R&D Projects	GA104/07/0444 GA ČR - Czech Science Foundation (CSF)
	GP104/06/P066 GA ČR - Czech Science Foundation (CSF)
	IAA400720710 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z40720504 - UCHP-M (2005-2011)
UT WOS	000270349100002
DOI	10.1016/j.fluid.2009.06.014
Annotation	In the present paper, liquid-liquid equilibrium in binary systems containing the ionic liquid is studied. It was suggested in papers published by other authors that the investigated ionic liquid could potentially be a suitable solvent for extracting aromatic compounds from mixtures containing aliphatic hydrocarbons, such as naphtha cracker feeds. To be able to assess the selectivity of 1-ethyl-3-methylimidazolium ethylsulfate towards aliphatic, cyclic, and aromatic hydrocarbons, mutual solubilities of the ionic liquid and n-heptane, methylcyclohexane, and toluene were measured by the volumetric method. To evaluate quantitatively the quality of the experimental data and their agreement with available literature values, a correlation by two polymer-solution models, the modified Flory-Huggins equation proposed by de Sousa et al. and the thermodynamic lattice model proposed by Qin and Prausnitz was carried out, the model parameters being optimized by a gnostic regression method.
Workplace	Institute of Chemical Process Fundamentals
Contact	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Year of Publishing	2010

Number of the records: 1