2011XXXVII JEEP – 37th Conference on Phase Equilibria
|Number of page(s)||4|
|Published online||05 October 2011|
Binary phase diagram between phenanthrene and its main impurity: dibenzothiophene
Laboratoire SMS - EA 3233, IMR4114 - Université de Rouen - 76821 Mont Saint Aignan Cedex, France
The binary phase diagram between commercial Phenanthrene and its main impurity, Dibenzothiophene, is established under atmospheric pressure by means of structural and thermal analyses. This determination appears as a requirement for performing efficient zone melting on Phenanthrene. The investigations on this binary phase diagram reveal stable and metastable eutectic invariants and a single eutectoid invariant. Two hypotheses are proposed for an undetermined invariant detected at 80°C in the domain rich in Dibenzothiophene. Moreover, solid-solutions in the Phenanthrene rich-domain are characterized. Finally, the impact of these heterogeneous equilibria on the feasibility of Phenanthrene refining by means of zone melting is discussed.
© Owned by the authors, published by EDP Sciences, 2011