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Polymerization of propylene using a prepolymerized high-active Ziegler–Natta catalyst. I. Kinetic studies

✍ Scribed by R. Kahraman; M. Erdoǧan; T. Bilgiç

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
651 KB
Volume
60
Category
Article
ISSN
0021-8995

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✦ Synopsis

The kinetics of propylene polymerization using a prepolymerized high-active T i c & catalyst with an EtzAICl cocatalyst are investigated. The effect of various parameters such as Al/ T i ratio, pressure, temperature, hydrogen, and polymerization time on the rate of polymerization and yield are examined. The dependency of these parameters on the polymerization rate are studied. It is found that the variation at the rate of polymerization with the EtzAICl cocatalyst concentration complies with a Langmuir-Hinshelwood type of relationship. The overall activation energy of polymerization calculated from the Arrhenius plot was found to be 11.6 kcal/mol.

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Comparative study of propylene polymeriz
Comparative study of propylene polymerization using monosupported and bisupported titanium-based Ziegler–Natta catalysts
✍ Gholam Hossien Zohuri; Roghieh Jamjah; Saeid Ahmadjo 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 95 KB 👁 1 views

## Abstract Heterogeneous Ziegler–Natta systems—MgCl~2~ (ethoxide type)/TiCl~4~/di‐__n__‐butyl phthalate (DNBP)/triethylaluminum (TEA)/dimethoxymethylcyclohexylsilane (DMMCHS) and SiO~2~/MgCl~2~ (ethoxide type)/TiCl~4~/DNBP/TEA/DMMCHS—were studied for the polymerization of propylene. The slurry pol