Gas phase polymerization of ethylene with a silica-supported metallocene catalyst: influence of temperature on deactivation

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Roos, Peter and Meier, Gerben B. and Samson, Job Jan C. and Weickert, Günter and Westerterp, K. Roel (1997) Gas phase polymerization of ethylene with a silica-supported metallocene catalyst: influence of temperature on deactivation. Macromolecular Rapid Communications, 18 (4). pp. 319-324. ISSN 1022-1336

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Abstract:Ethylene was polymerized at 5 bar in a stirred powder bed reactor with silica supported rac-Me2Si[Ind]2ZrCl2/methylaluminoxane (MAO) at temperatures between 40°C and 80°C using NaCl as support bed and triethylaluminium (TEA) as a scavenger for impurities. For this fixed recipe and a given charge of catalyst. the average catalyst activity is reproducible within 10% for low temperatures. The polymerization rate and the rate of deactivation increase with increasing temperature. The deactivation could be modeled using a first order dependence with respect to the polymerization rate.
Item Type:Article
Copyright:© 1997 Wiley InterScience
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Link to this item:http://purl.utwente.nl/publications/71358
Official URL:http://dx.doi.org/10.1002/marc.1997.030180408
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Metis ID: 106232