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Kinetic and Morphological Investigation on the Magnesium Ethoxide-Based Ziegler-Natta Catalyst for Propylene Polymerization Using Typical External Donors |
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| Authors: | Ali Dashti SA Ahmad Ramazani Yuichi Hiraoka Sang Yull Kim Toshiaki Taniike Minoru Terano |
| Institution: | 1. Chemical Engineering and Petroleum Department, Sharif University of Technology, P.O. Box 11155/9465, Tehran, Iran;2. School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan
Yuki Gosei Kogyo Co., Japan;3. School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan Samsung Total Petrochemicals Co., Korea;4. School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan |
| Abstract: | Kinetic and morphological aspects of slurry propylene polymerization using a MgCl2-supported Ziegler-Natta catalyst synthesized from a Mg(OEt)2 precursor in the presence and absence of two different external donors are investigated. The kinetic profiles show similar trend in presence and absence of donors. The Mg(OEt)2-based catalyst show a mild activation and a long-standing activity with good replication of the catalyst particles. The results show that synthesized Mg(OEt)2-based Ziegler-Natta catalyst presents a highly stable polymerization activity and good replication due to the uniform Ti distribution all over the catalyst particles. |
| Keywords: | external donor kinetics morphology Mg(OEt)2-based Ziegler-Natta propylene polymerization |