IN SITU SILICA SUPPORTED METALLOCENE CATALYSTS FOR ETHYLENE POLYMERIZATION

<span style="font-family: Calibri; font-size: medium;">Bis(2-R-ind)ZrCl<sub>2</sub> (R: H or phenyl) was supported on different types of silica by in situ impregnation method and used for ethylene polymerization. In this method, the step of catalyst loading on support was...

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Main Authors: saeid ahmadjo, hassan arabi, Gholam Zohuri, Gholam Nejabat, Mojtaba Omidvar, Mostafa Ahmadi, Mohamad Mortazavi
Format: Article
Language:English
Published: Reaserch Institute of Petroleum Industry 2014-03-01
Series:Journal of Petroleum Science and Technology
Subjects:
Online Access:https://jpst.ripi.ir/article_331_d87022ba17b5c2a3038c5d7ab470af2e.pdf
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author saeid ahmadjo
hassan arabi
Gholam Zohuri
Gholam Nejabat
Mojtaba Omidvar
Mostafa Ahmadi
Mohamad Mortazavi
author_facet saeid ahmadjo
hassan arabi
Gholam Zohuri
Gholam Nejabat
Mojtaba Omidvar
Mostafa Ahmadi
Mohamad Mortazavi
author_sort saeid ahmadjo
collection DOAJ
description <span style="font-family: Calibri; font-size: medium;">Bis(2-R-ind)ZrCl<sub>2</sub> (R: H or phenyl) was supported on different types of silica by in situ impregnation method and used for ethylene polymerization. In this method, the step of catalyst loading on support was eliminated and common alkyl aluminum (triisobutylaluminum, TiBA) cocatalyst was used instead of expensive methyl aluminiumoxane (MAO) cocatalyst in the polymerization. The effect of surface area of silica on the performance of the supported catalysts using three different types of silica including EP12 (390 m<sup>2</sup>/gr.), PQ3060 (570 m<sup>2</sup>/gr.) and MCM-41 (1100 m<sup>2</sup>/gr.) was investigated. The surface area had a more critical role relative to other characteristics of the support in the performance of catalysts. By using MCM-41 as support, the kinetic stability was enhanced. The activity of the supported catalysts was increased by increasing the surface area of silica in the order of MCM-41 > PQ3060 > EP12. The morphology of polymer particles was improved and reactor fouling was eliminated by supporting the catalyst.</span>
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spelling doaj.art-69f760354383436a83293f9cb140a40c2022-12-22T01:56:10ZengReaserch Institute of Petroleum IndustryJournal of Petroleum Science and Technology2251-659X2645-33122014-03-0141212910.22078/jpst.2014.331331IN SITU SILICA SUPPORTED METALLOCENE CATALYSTS FOR ETHYLENE POLYMERIZATIONsaeid ahmadjo0hassan arabi1Gholam Zohuri2Gholam Nejabat3Mojtaba Omidvar4Mostafa Ahmadi5Mohamad Mortazavi6Iran Polymer and Petrochemical InstituteIran Polymer and Petrochemical InstituteFerdowsi University of MashhadIran Polymer and Petrochemical InstituteIran Polymer and Petrochemical InstituteIran Polymer and Petrochemical InstituteIran Polymer and Petrochemical Institute<span style="font-family: Calibri; font-size: medium;">Bis(2-R-ind)ZrCl<sub>2</sub> (R: H or phenyl) was supported on different types of silica by in situ impregnation method and used for ethylene polymerization. In this method, the step of catalyst loading on support was eliminated and common alkyl aluminum (triisobutylaluminum, TiBA) cocatalyst was used instead of expensive methyl aluminiumoxane (MAO) cocatalyst in the polymerization. The effect of surface area of silica on the performance of the supported catalysts using three different types of silica including EP12 (390 m<sup>2</sup>/gr.), PQ3060 (570 m<sup>2</sup>/gr.) and MCM-41 (1100 m<sup>2</sup>/gr.) was investigated. The surface area had a more critical role relative to other characteristics of the support in the performance of catalysts. By using MCM-41 as support, the kinetic stability was enhanced. The activity of the supported catalysts was increased by increasing the surface area of silica in the order of MCM-41 > PQ3060 > EP12. The morphology of polymer particles was improved and reactor fouling was eliminated by supporting the catalyst.</span>https://jpst.ripi.ir/article_331_d87022ba17b5c2a3038c5d7ab470af2e.pdfin situ impregnationheterogeneous catalysismetallocenepolyethylenesilica
spellingShingle saeid ahmadjo
hassan arabi
Gholam Zohuri
Gholam Nejabat
Mojtaba Omidvar
Mostafa Ahmadi
Mohamad Mortazavi
IN SITU SILICA SUPPORTED METALLOCENE CATALYSTS FOR ETHYLENE POLYMERIZATION
Journal of Petroleum Science and Technology
in situ impregnation
heterogeneous catalysis
metallocene
polyethylene
silica
title IN SITU SILICA SUPPORTED METALLOCENE CATALYSTS FOR ETHYLENE POLYMERIZATION
title_full IN SITU SILICA SUPPORTED METALLOCENE CATALYSTS FOR ETHYLENE POLYMERIZATION
title_fullStr IN SITU SILICA SUPPORTED METALLOCENE CATALYSTS FOR ETHYLENE POLYMERIZATION
title_full_unstemmed IN SITU SILICA SUPPORTED METALLOCENE CATALYSTS FOR ETHYLENE POLYMERIZATION
title_short IN SITU SILICA SUPPORTED METALLOCENE CATALYSTS FOR ETHYLENE POLYMERIZATION
title_sort in situ silica supported metallocene catalysts for ethylene polymerization
topic in situ impregnation
heterogeneous catalysis
metallocene
polyethylene
silica
url https://jpst.ripi.ir/article_331_d87022ba17b5c2a3038c5d7ab470af2e.pdf
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AT gholamzohuri insitusilicasupportedmetallocenecatalystsforethylenepolymerization
AT gholamnejabat insitusilicasupportedmetallocenecatalystsforethylenepolymerization
AT mojtabaomidvar insitusilicasupportedmetallocenecatalystsforethylenepolymerization
AT mostafaahmadi insitusilicasupportedmetallocenecatalystsforethylenepolymerization
AT mohamadmortazavi insitusilicasupportedmetallocenecatalystsforethylenepolymerization