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Titolo:
Thermodynamics of binary mixtures containing organic carbonates Part XI. SLE measurements for systems of diethyl carbonate with long n-alkanes: comparison with DISQUAC and modified UNIFAC predictions
Autore:
Domanska, U; Szurgocinska, M; Gonzalez, JA;
Indirizzi:
Warsaw Univ Technol, Fac Chem, Div Phys Chem, PL-00664 Warsaw, Poland Warsaw Univ Technol Warsaw Poland PL-00664 Chem, PL-00664 Warsaw, Poland Univ Valladolid, Fac Ciencias, Dept Termodinam & Fis Aplicada 2, Valladolid 47071, Spain Univ Valladolid Valladolid Spain 47071 licada 2, Valladolid 47071, Spain
Titolo Testata:
FLUID PHASE EQUILIBRIA
fascicolo: 1-2, volume: 190, anno: 2001,
pagine: 15 - 31
SICI:
0378-3812(20011101)190:1-2<15:TOBMCO>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
VAPOR-LIQUID-EQUILIBRIA; EXCESS MOLAR VOLUMES; DIMETHYL CARBONATE; ALIPHATIC-ALCOHOLS; LINEAR CARBONATES; CHAIN 1-ALKANOLS; SOLVENT MIXTURES; SOLUBILITY; ENTHALPIES; HYDROCARBONS;
Keywords:
experimental; solid-liquid equilibria; diethyl carbonate; long-chain n-alkanes; correlations; Wilson; UNIQUAC; NRTL; group contributions; DISQUAC; UNIFAC;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
50
Recensione:
Indirizzi per estratti:
Indirizzo: Domanska, U Warsaw Univ Technol, Fac Chem, Div Phys Chem, PL-00664 Warsaw,Poland Warsaw Univ Technol Warsaw Poland PL-00664 64 Warsaw, Poland
Citazione:
U. Domanska et al., "Thermodynamics of binary mixtures containing organic carbonates Part XI. SLE measurements for systems of diethyl carbonate with long n-alkanes: comparison with DISQUAC and modified UNIFAC predictions", FLU PH EQUI, 190(1-2), 2001, pp. 15-31

Abstract

Using the available interaction parameters for organic carbonate + alkane mixtures the ability of the DISQUAC and modified UNIFAC group contribution model to predict solid-liquid equilibria (SLE) is investigated. Six sets ofthe SLE temperatures for diethyl carbonate + n-alkane (octadecane, eicosane, docosane, tetracosane, hexacosane, octacosane) systems have been measured by a dynamic method from 278.65 K to the melting point of the long chain n-alkane. The data have been correlated by three equations: Wilson, UNIQUACand NRTL. The existence of a solid-solid first-order phase transition in n-alkanes has been taken into consideration in the solubility calculations. The relative standard deviations of the solubility temperature correlation for all measured data vary from 0.31 to 0.34 K and depend on the particularequation used. The SLE curves are usually well predicted by DISQUAC and modified UNIFAC models with average standard deviation of < 1.35 K. (C) 2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 01/04/20 alle ore 21:02:47