Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/104860
Author(s): Marina S. Manic
David Villanueva
Tiziana Fornari
António J. Queimada
Eugénia A. Macedo
Vesna NajdanovicVisak
Title: Solubilities of high-value compounds in ethyl lactate: measurements and modelling
Issue Date: 2012
Abstract: (Solid + liquid) equilibria of binary mixtures containing high-value compounds and ethyl lactate werestudied. Using the gravimetric method, the solubility of various solutes such as caffeine, vanillic acid,ferulic acid, caffeic acid and thymol in ethyl lactate was measured as a function of temperature overthe range of (298.2 to 343.2) K, at atmospheric pressure. The differences in solubility of a given solutein water-saturated and dry ethyl lactate were observed. The deviation of these binary systems from idealmixture behaviour was discussed. In order to understand the solubilization process, melting properties ofpure solutes were determined by differential scanning calorimetry (DSC). The solubility data obtainedwere represented using UNIQUAC and UNIFAC-based models as well as with the Cubic-Plus-Association(CPA) equation of state. The results of the modeling indicate that these models are the appropriate toolsfor representing the solubility behaviour of various solutes in ethyl lactate. 2011 Elsevier Ltd. All rights reserved
Subject: Ciências Tecnológicas, Ciências da engenharia e tecnologias
Technological sciences, Engineering and technology
Scientific areas: Ciências da engenharia e tecnologias
Engineering and technology
URI: https://repositorio-aberto.up.pt/handle/10216/104860
Related Information: info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Programa de Financiamento Plurianual de Unidades de I&D/PEst-C/EQB/LA0020/2011/Projeto Estratégico-LA 20 - 2011-2012/LA 20
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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