Prediction of Ternary Liquid-Liquid Equilibria in Polymer-Solvent-Solvent Systems

Pappa, GD; Kontogeorgis, GM; Tassios, DP

dc.contributor.author	Pappa, GD	en
dc.contributor.author	Kontogeorgis, GM	en
dc.contributor.author	Tassios, DP	en
dc.date.accessioned	2014-03-01T01:13:16Z
dc.date.available	2014-03-01T01:13:16Z
dc.date.issued	1997	en
dc.identifier.issn	0888-5885	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12405
dc.subject	Liquid Liquid Equilibria	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Entropy	en
dc.subject.other	Equations of state	en
dc.subject.other	Mathematical models	en
dc.subject.other	Molecular structure	en
dc.subject.other	Polymers	en
dc.subject.other	Solvents	en
dc.subject.other	Free volume activity coefficient model	en
dc.subject.other	Phase equilibria	en
dc.title	Prediction of Ternary Liquid-Liquid Equilibria in Polymer-Solvent-Solvent Systems	en
heal.type	journalArticle	en
heal.identifier.primary	10.1021/ie970191n	en
heal.identifier.secondary	http://dx.doi.org/10.1021/ie970191n	en
heal.language	English	en
heal.publicationDate	1997	en
heal.abstract	The performance of the entropic free-volume (FV) activity coefficient model and the Holten-Andersen et al. equation of state (EOS:) in predicting the liquid-liquid equilibrium (LLE) for solutions involving one polymer and two solvents is examined. Both models are purely predictive since only the structures of the compounds involved and, in the case of the entropic FV model, the molar volumes are required, The necessary interaction parameters for both models are obtained from vapor-liquid equilibrium (VLE) data for mixtures of low molecular weight compounds. The entropic FV model qualitatively predicts the ternary LLE phase envelope for all the systems studied, while for some of them the predictions can be considered quantitative as well. The Holten-Andersen et al. EOS provides quite satisfactory results for some of the systems, while it fails for others. In addition, due to the UNIFAC parameter table employed, the entropic FV model is of wider applicability compared to the Holten-Andersen et al. EOS.	en
heal.publisher	AMER CHEMICAL SOC	en
heal.journalName	Industrial and Engineering Chemistry Research	en
dc.identifier.doi	10.1021/ie970191n	en
dc.identifier.isi	ISI:A1997YJ88100054	en
dc.identifier.volume	36	en
dc.identifier.issue	12	en
dc.identifier.spage	5461	en
dc.identifier.epage	5466	en