Isobaric (vapor plus liquid) equilibria of 1-ethyl-3-methylimidazolium ethylsulfate plus (propionaldehyde or valeraldehyde): Experimental data and prediction

dc.creatorAlvarez, VH
dc.creatorMattedi, S
dc.creatorAznar, M
dc.date2011
dc.dateJUN
dc.date2014-07-30T14:35:29Z
dc.date2015-11-26T18:06:21Z
dc.date2014-07-30T14:35:29Z
dc.date2015-11-26T18:06:21Z
dc.date.accessioned2018-03-29T00:48:32Z
dc.date.available2018-03-29T00:48:32Z
dc.identifierJournal Of Chemical Thermodynamics. Academic Press Ltd- Elsevier Science Ltd, v. 43, n. 6, n. 895, n. 900, 2011.
dc.identifier0021-9614
dc.identifierWOS:000289600400009
dc.identifier10.1016/j.jct.2011.01.008
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/60783
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/60783
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1293335
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionThis paper reports the density, refraction index, and (vapor + liquid) equilibria (VLE) for binary systems {aldehyde + 1-ethyl-3-methylimidazolium ethylsulfate ([emim][EtSO(4)])}: {propionaldehyde + [emim][EtSO(4)]} and {valeraldehyde + [emim][EtSO(4)]}. The uncertainties for the temperature, pressure, and compositions measurements for the phase equilibria are +/- 0.1 K, +/- 0.01 kPa and +/- 0.0004, respectively. A qualitative analysis of the variation of the properties with changes in solvent and temperature was performed. The Peng-Robinson equation of state (PR EoS), coupled with the Wong-Sandler mixing rule (WS), is used to describe the experimental data. To calculate activity coefficients we used three different models: NRTL, UNIQUAC, and COSMO-SAC. Since the predictive liquid activity coefficient model COSMO-SAC is used in the Wong-Sandler mixing rule, the resulting thermodynamic model is a completely predictive one. The prediction results for the density and for the (vapor + liquid) equilibria have a deviation lower than 2.3% and 1.6%, respectively. The (vapor + liquid) equilibria predictions show a good description for the propionaldehyde system and only a qualitative description for the valeraldehyde system. (C) 2011 Elsevier Ltd. All rights reserved.
dc.description43
dc.description6
dc.description895
dc.description900
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFAPESP [06/03711-1]
dc.languageen
dc.publisherAcademic Press Ltd- Elsevier Science Ltd
dc.publisherLondon
dc.publisherInglaterra
dc.relationJournal Of Chemical Thermodynamics
dc.relationJ. Chem. Thermodyn.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subject(Vapor plus liquid) equilibria
dc.subjectProtic ionic liquid
dc.subjectCOSMO-SAC
dc.subjectMolecular interactions
dc.subjectIonic Liquids
dc.subjectMixtures
dc.subjectState
dc.subjectEquation
dc.subjectSystems
dc.titleIsobaric (vapor plus liquid) equilibria of 1-ethyl-3-methylimidazolium ethylsulfate plus (propionaldehyde or valeraldehyde): Experimental data and prediction
dc.typeArtículos de revistas


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