Mémoires de Fin d’Etudes
Etablissement
Université des Sciences et de la Technologie d’Alger,Houari Boumediène
Affiliation
Département de Chimie organique appliquée
Auteur
TELLI, Leila
Directeur de thèse
Zadjia, Atik
Filière
Chimie
Diplôme
Magister
Titre
Phase diagrams of multi-components mixtures containing fluorinated hydrocarbon
Mots clés
Equilibre liquide-liquide ; Diagrammes de phases ; Hydrocarbures fluorés
Résumé
Phase diagrams of multicomponent mixtures are important in both theoretical studies and industrial applications. They are frequently encountered in component separations by distillation and extraction processes. The fluorinated hydrocarbons, such as 2.2.2-trifluoroethanol, are non-toxic, non ozone depleting, and are substitutes of chlorinated solvents. They are used in medicine, pharmaceutical, chemical industries and fuels. The measurement and prediction of liquid-liquid equilibrium properties in solutions are important for the units design and solvent extraction processes. This work is carried out in order to report solubility and phase diagrams data for ternary and quaternary aqueous solutions containing: 2.2.2-trifluoroethanol, 1-hoxanol, 1-butanol, ethanol, cyclohexane, acetone, and water at temperatures 283.15 K and 298.15 K and pressure of 101 kPa. Complete phase diagrams from solubility (binodal) and tie-line data of the studied systems are obtained by titration and gas chromatography, respectively. Separation factor, distribution coefficient, and critical solution compositions are reported. The binodal and liquid-liquid equilibrium data curves were well constructed by Hand and Othmer-Tobias correlation methods.
Date de soutenance
24/03/2013
Cote
541.392
Pagination
98 p.
Illusatration
ill.
Format
30 cm.
Notes
Support papier accompagné d’un CD-Rom ; Bibliogr. p. 80-97
Statut
Traitée