Binary phase diagram between phenanthrene and its main impurity: dibenzothiophene

N. Couvrat; Y. Cartigny; S. Tisse; M-N. Petit; G. Coquerel

doi:10.1051/jeep/201100006

All issues

Year: 2011

10.1051/jeep/201100006

Abstract

Open Access

Issue		2011 XXXVII JEEP – 37^th Conference on Phase Equilibria


Article Number		00006
Number of page(s)		4
DOI		https://doi.org/10.1051/jeep/201100006
Published online		05 October 2011

JEEP 2011, 00006 (2011)

Binary phase diagram between phenanthrene and its main impurity: dibenzothiophene

N. Couvrat, Y. Cartigny, S. Tisse, M-N. Petit and G. Coquerel

Laboratoire SMS - EA 3233, IMR4114 - Université de Rouen - 76821 Mont Saint Aignan Cedex, France

Abstract

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.