Separation by thermodialysis of acetic acid aqueous solutions

Authors

  • F. Bellucci,

    1. International Institute of Genetics and Biophysics of C.N.R., Via Marconi 10, Naples, Italy
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  • M. Bobik,

    1. International Institute of Genetics and Biophysics of C.N.R., Via Marconi 10, Naples, Italy
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    • Institut für Thermo-und Fluiddynamik, Ruhr-Universität, Bochum, BRD;

  • E. Drioli,

    1. International Institute of Genetics and Biophysics of C.N.R., Via Marconi 10, Naples, Italy
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  • F.S. Gaeta,

    Corresponding author
    1. International Institute of Genetics and Biophysics of C.N.R., Via Marconi 10, Naples, Italy
    • F. S. Gaeta, International Institute of Genetics and Biophysics, Via Marconi 10, 80125 Naples, Italy
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    • International Institute of Genetics and Biophysics of C.N.R., Via Marconi 10, Naples, Ital

  • D.G. Mita,

    1. International Institute of Genetics and Biophysics of C.N.R., Via Marconi 10, Naples, Italy
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  • G. Orlando

    1. Istituto di Principi di Ingegneria Chimica, Faculty of Engineering of the University of Naples, Piazzale Tecchio, Naples, Italy
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Abstract

The effect of thermodialysis has been investigated in non-ideal liquid mixtures, employing coarse, unselective porous partitions.

For the case investigated — aqueous solutions of acetic acid — the temperature differences applied across the partition induced remarkable separations of the components. This effect may be applicable to the purification of industrial wastes. Furthermore, the investigation of thermodialysis in non-ideal solutions has provided valuable data, aiding to our understanding of the physical basis of the phenomenon.

Abstract

On a étudié l'effet de thermodialyse dans des mélanges liquides non-idéaux; on a employé à cette fin des cloisons poreuses, grossières et non sélectives.

Dans le cas étudié, à savoir celui des solutions aqueuses d'acide acétique, les différences de température de part et d'autre de la cloison ont provoqué des séparations remarquables des composants. Cet effet pourrait s'appliquer à la purification des effluents industriels. L'étude de la thermodialyse des solutions non-idéales a, en outre, fourni des données précieuses qui aident à la compréhension des fondements physiques du phénomène.

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