Premium
Supported zirconocene catalyst for preventing reactor fouling in ethylene polymerization
Author(s) -
Entezami Ali,
Najafi Moghadam Peyman
Publication year - 2005
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1851
Subject(s) - metallocene , polymerization , methylaluminoxane , materials science , catalysis , post metallocene catalyst , ethylene , fouling , coordination polymerization , chemical engineering , polymer chemistry , polymer , organic chemistry , chemistry , solution polymerization , composite material , biochemistry , membrane , engineering
The commercial interest of metallocene complexes for olefin polymerization has led to additional efforts to prepare suitable metallocene complexes efficiently and economically. Ethylene polymerization was carried out with a series of heterogeneous catalysts which were prepared in various Zr/silica ratios by immobilization of Ind 2 ZrCl 2 preactivated with methylaluminoxane (MAO) on silica. This method to form the catalyst system resulted in a polymerization catalyst with reduced fouling tendencies and improved reactor operability. Polymerization of ethylene was conducted in Buchi reactors in a slurry phase under mild pressure. Some of the physical properties of the obtained polymers were also determined. Copyright © 2005 Society of Chemical Industry