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

P. Roos; G.B. Meier; J.J.C. Samson; Job Jan C. Samson; G. Weickert; K.R. Westerterp

doi:10.1002/marc.1997.030180408

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

P. Roos, G.B. Meier, J.J.C. Samson, Job Jan C. Samson, G. Weickert, K.R. Westerterp

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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.

Original language	Undefined
Pages (from-to)	319-324
Journal	Macromolecular rapid communications
Volume	1997
Issue number	18
DOIs	https://doi.org/10.1002/marc.1997.030180408
Publication status	Published - 1997

Keywords

METIS-106232
IR-71358

Access to Document

10.1002/marc.1997.030180408

Roos97gas

Cite this

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title = "Gas phase polymerization of ethylene with a silica-supported metallocene catalyst: influence of temperature on deactivation.",

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.",

keywords = "METIS-106232, IR-71358",

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year = "1997",

doi = "10.1002/marc.1997.030180408",

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pages = "319--324",

journal = "Macromolecular rapid communications",

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TY - JOUR

T1 - Gas phase polymerization of ethylene with a silica-supported metallocene catalyst: influence of temperature on deactivation.

AU - Roos, P.

AU - Meier, G.B.

AU - Samson, J.J.C.

AU - Samson, Job Jan C.

AU - Weickert, G.

AU - Westerterp, K.R.

PY - 1997

Y1 - 1997

N2 - 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.

AB - 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.

KW - METIS-106232

KW - IR-71358

U2 - 10.1002/marc.1997.030180408

DO - 10.1002/marc.1997.030180408

M3 - Article

VL - 1997

SP - 319

EP - 324

JO - Macromolecular rapid communications

JF - Macromolecular rapid communications

SN - 1022-1336

IS - 18

ER -