Article

Isobaric vapor-liquid equilibrium and liquid-phase enthalpy of mixing data for the binary mixtures of m- or p-Xylene with cyclohexanol

  1. Fabio Comelli1,
  2. Romolo Francesconi2,*,
  3. Antonio Arcelli2

Article first published online: 26 MAR 2009

DOI: 10.1002/cjce.5450660417

Issue

The Canadian Journal of Chemical Engineering

The Canadian Journal of Chemical Engineering

Volume 66, Issue 4, pages 644–650, August 1988

Additional Information

How to Cite

Comelli, F., Francesconi, R. and Arcelli, A. (1988), Isobaric vapor-liquid equilibrium and liquid-phase enthalpy of mixing data for the binary mixtures of m- or p-Xylene with cyclohexanol. Can. J. Chem. Eng., 66: 644–650. doi: 10.1002/cjce.5450660417

Author Information

  1. 1

    Centro di Studio per la Fisica delle Macromolecole del CNR, via Selmi 2, 40126 Bologna (Italy)

  2. 2

    Instituto Chimico G. Ciamician, Universita degli Studi, via Selmi 2, 40126 Bologna (Italy)

*Instituto Chimico G. Ciamician, Universita degli Studi, via Selmi 2, 40126 Bologna (Italy)

Publication History

  1. Issue published online: 26 MAR 2009
  2. Article first published online: 26 MAR 2009
  3. Manuscript Revised: 15 DEC 1987
  4. Manuscript Accepted: 15 DEC 1987
  5. Manuscript Received: 18 APR 1986

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Keywords:

  • isobaric vapor-liquid equilibrium;
  • heat of mixing;
  • xylene-cyclohexanol binaries

Abstract

Isobaric vapor-liquid equilibrium data and liquid-phase enthalpy of mixing are investigated for the binary mixtures of m- or p-xylene with cyclohexanol. Allowance for self-association of the cyclic alcohol is made when assessing the thermodynamic consistency of the experimental data.

Activity coefficients are correlated to mole fractions through the Wilson Equation, the parameters of which are obtained by the method of maximum likelihood and compared with the ones given by the conventional unweighted least-squares procedure.

Nous avons étudié les données d'éuilibre liquide-vapeur et l'enthalpie de mélange de la phase liquide à pression constante, pour des mélanges binaires de m-xylène ou p-xylène avec du cyclohexanol. L'association de l'alcool cyclique est possible lorsqu'on évalue la cohérence thermodynamique des données expérimentales.

Les coefficients d'activité sont corrélés aux fractions molaires grǎce à l'équation de Wilson, dont les paramètres sont obtenus par le méthode du maximum de vraisemblance et comparés aux paramètres de la méthode classique des moindres carrés non pondérés.

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