Polymerization of olefins through heterogeneous catalysis. XVII. Experimental study and model interpretation of some aspects of olefin polymerization over a TiCl4/MgCl2 catalyst

摘要: Using a high-activity MgCl 2 -supported TiC1 4 catalyst, kinetic studies of ethylene and propylene polymerization are conducted in semi-batch gas phase stirred-bed reactor system. Based on the experimental observations obtained from this study others literature, simple mechanisms proposed to explain data. This model considers both site formation interaction catalyst cocatalyst as well participation monomers during activation. By using together with parameters estimated various sources, some aspects behavior have been successfully predicted. These include rate enhancement introduced by α-olefins, effect Al/Ti ratio features such activity decay rate, different reaction orders observed for monomers.