SOLUBILITE EN MELANGES SOLVANT –ANTISOLVANT. UNE ETUDE CALORIMETRIQUE DES DIAGRAMMES DE PHASES SOLIDE-LIQUIDE EN SYSTEMES TERNAIRES
HAMEDI MOHAMED H. 1, GROLIER JEAN-PIERRE E. 2* (1)DÉPARTEMENT DE GÉNIE MÉCANIQUE, UNIVERSITÉ DE TECHNOLOGIE K.N. TOOSI, TÉHÉRAN, IRAN (2)LABORATOIRE DE THERMODYNAMIQUE DES SOLUTIONS ET DES POLYMÈRES, UNIVERSITÉ BLAISE PASCAL, 63177 AUBIÈRE, FRANCE *CORRESPONDANCE: J-PIERRE.GROLIER@UNIV-BPCLERMONT.FR
In crystallization engineering, a crystallized powder of a pure component can be obtained in a selected solvent-antisolvent system. It has been proposed that binary water-alcohol mixed solvents can be used for this process. Isothermal titration calorimetry has been used to construct the solid-liquid equilibrium line in ternary systems containing the solute to precipitate and an aqueous-alcohol mixed solvent. Phase diagrams have been established over the whole concentration range for some benzene substituted derivatives, including o-anisaldehyde, 1,3,5-trimethoxybenzene and vanillin, in {water + alcohol} mixtures at different temperatures.
