Construction and comparison of solid liquid phase diagrams of binary sat-sat and unsat-unsat fatty acid mixtures comprising two of palmitic/stearic/oleic/linoleic/linolenic acid

  • In this paper, binary phase diagrams of the five main fatty acids present in edible oil based mixtures are shown. While previously the binary systems of one saturated and one unsaturated acid were investigated, in this work the binary mixtures comprise of palmitic (C16:0) and stearic acid (C18:0) or a binary mixture of oleic (C18:1), linoleic (C18:2) or linolenic acid (C18:3). In order to obtain the phase diagrams with all the solid liquid and solid phase transitions, the mixtures were analyzed by means of Differential Scanning Calorimetry (DSC). Phase change boundary functions based on thermodynamic models and experimental values were fitted and compared. The phase diagrams obtained show behaviors in good agreement to literature. The paper contributes to the deeper understanding of the essential phase change effects during industrial crystallization processes.

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Metadaten
Author: Karl-Andreas Eckert, Sunanda Dasgupta, Benjamin Selge, Peter Ay
URL:http://www.jerad.org/ppapers/dnload.php?vl=10&is=4&st=612
ISSN:0973-6921
ISSN:2319-5983
Title of the source (English):Journal of Environmental Research And Development
Document Type:Scientific journal article peer-reviewed
Language:English
Year of publication:2016
Tag:Binary mixtures; DSC; Phase diagram; Saturated and unsaturated fatty acids; Solid liquid equilibrium
Volume/Year:10
Issue number:4
Number of pages:10
Faculty/Chair:Fakultät 2 Umwelt und Naturwissenschaften / FG Aufbereitungstechnik und Sekundärrohstofftechnologie (ehemals)
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