Propylene Solubility in Toluene and Isododecane

Propylene solubility in toluene and isododecane (2,2,4,6,6‐Pentamethylheptane, CA Registry# 13475‐82‐6) was measured at different temperatures and pressures, similar to the ones normally used to carry out propylene polymerizations through metallocene and Ziegler‐Natta catalysts. Experimental data we...

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Bibliographic Details
Published in:Canadian journal of chemical engineering 2003-02, Vol.81 (1), p.147-152
Main Authors: Dariva, Cláudio, Lovisi, Humberto, Mariac, Luis C. Santa, Coutinho, Fernanda M. B., Oliveira, José Vladimir, Pinto, José Carlos
Format: Article
Language:English
Subjects:
Applied sciences
Chemistry
Exact sciences and technology
General and physical chemistry
isododecane
Organic polymers
Physicochemistry of polymers
Polymerization
Preparation, kinetics, thermodynamics, mechanism and catalysts
propylene
Solubility
Solutions
toluene
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Summary:Propylene solubility in toluene and isododecane (2,2,4,6,6‐Pentamethylheptane, CA Registry# 13475‐82‐6) was measured at different temperatures and pressures, similar to the ones normally used to carry out propylene polymerizations through metallocene and Ziegler‐Natta catalysts. Experimental data were obtained with a gravimetric method, where experimental liquid phase compositions are measured at known temperature and pressure conditions. The experimental data were modeled with two different models: the Wilson excess Gibbs free energy model and an empirical model. Both modeling approaches may be recommended for analysis of kinetic data obtained for slurry propylene polymerizations in toluene and isododecane. La solubilité du propylène dans le toluène et l'isododécane (2,2,4,6,6‐Pentamethylheptane, CA Registry# 13475‐82‐6) a été mesurée à différentes conditions de températures et de pressions, usuellement utilisées pour conduire les processus de polymérisation du propylène à travers les catalyseurs de metallocène et de Ziegler‐Natta. Les données experimentales ont été obtenues faisant usage de la méthode gravimétrique. Les compositions expérimentales de la phase liquide ont été mesurées à des conditions de températures et de pression connues. Les résultats obtenus ont été ajustés en utilisant deux modèles différents d'énergie: Wilson et un autre modè empirique qui peuvent être recommandés pour l'analyse de données cinétiques de la polymérisation.
ISSN:0008-4034
1939-019X
DOI:10.1002/cjce.5450810119