Temperature effect on the kinetic profile of Ziegler-Natta catalyst in propene polymerization
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Date
2024-09-10
Authors
Kolomazník, Vít
Cejpek, Igor
Skoumal, Miroslav
ORCID
0000-0003-1838-173XAdvisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
SPringer Nature
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Abstract
Propene polymerization kinetic profiles with a diether-based Ziegler-Natta MgCl2-supported catalyst were investigated in a stainless-steel batch reactor. The initial 10 min period characterizes various temperature levels with a constant volume of liquid propene. The lowest temperature level corresponds to the usual prepolymerization temperature (10 degrees C), and the highest level corresponds to the usual main polymerization temperature (70 degrees C). The effects of the starting temperature levels were evaluated through polymerization kinetic patterns computed namely from the second polymerization period carried out at 70 degrees C for the next 90 min. Based on the heat transfer data, the kinetic profiles were fitted to suitable semi-empirical equations derived from fundamental kinetic approaches using the first and second orders of the catalyst active sites decay. Both approaches adequately describe the dependence of the initial activities and deceleration constants on the temperature during the initial period.
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Citation
CHEMICAL PAPERS. 2024, vol. 78, issue 15, p. 8397-8408.
https://link.springer.com/article/10.1007/s11696-024-03679-w
https://link.springer.com/article/10.1007/s11696-024-03679-w
Document type
Peer-reviewed
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Published version
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Language of document
en