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Article: High activity Ziegler-Natta catalyst made from Mg powder

TitleHigh activity Ziegler-Natta catalyst made from Mg powder
Authors
KeywordsBulk Density
Magnesium Powder
Morphology
Particle
Polyethylene Catalyst
Issue Date2006
Citation
Hecheng Shuzhi Ji Suliao/China Synthetic Resin and Plastics, 2006, v. 23 n. 2, p. 16-19+23 How to Cite?
AbstractA series of novel high activity Ziegler-Natta catalysts were manufactured with spherical magnesium powder as the raw material. The morphology and properties of the catalysts and the prepolymer thereof were analyzed and characterized by scanning electron microscope (SEM) and laser particle size analyzer. The results indicate that the spherical Mg powder is favourable for the preparation of catalyst; the prepolymer prepared with the catalyst exhibit an improved morphology and fluidity, compared with catalyst made from laminar Mg powder. The activity of the catalyst manufactured with Mg powder in the particle size ranging from 30 to 70 μm can reach 313 mg/(mol·h·Pa). As the iodine amount is reduced, bulk density of the prepolymer decreases from 0.28 g/cm3 to 0.25 g/cm3 while the average particle size of the prepolymer increases gradually from 155.42 μm to 186.50 μm, in addition, the content of fine powder of the prepolymer lowered from 27.1% to 14.8%. The observation of the prepolymer under SEM demonstrates that the shape of the prepolymer particle approaches sphere and its fluidity reaches class II (high class) after introducing SiO2 into the catalyst system.
Persistent Identifierhttp://hdl.handle.net/10722/91365
ISSN
2015 SCImago Journal Rankings: 0.102

 

DC FieldValueLanguage
dc.contributor.authorSan, Xen_HK
dc.contributor.authorLi, Sen_HK
dc.contributor.authorWei, Gen_HK
dc.contributor.authorLiu, Fen_HK
dc.contributor.authorJin, Cen_HK
dc.date.accessioned2010-09-17T10:17:57Z-
dc.date.available2010-09-17T10:17:57Z-
dc.date.issued2006en_HK
dc.identifier.citationHecheng Shuzhi Ji Suliao/China Synthetic Resin and Plastics, 2006, v. 23 n. 2, p. 16-19+23en_HK
dc.identifier.issn1002-1396en_HK
dc.identifier.urihttp://hdl.handle.net/10722/91365-
dc.description.abstractA series of novel high activity Ziegler-Natta catalysts were manufactured with spherical magnesium powder as the raw material. The morphology and properties of the catalysts and the prepolymer thereof were analyzed and characterized by scanning electron microscope (SEM) and laser particle size analyzer. The results indicate that the spherical Mg powder is favourable for the preparation of catalyst; the prepolymer prepared with the catalyst exhibit an improved morphology and fluidity, compared with catalyst made from laminar Mg powder. The activity of the catalyst manufactured with Mg powder in the particle size ranging from 30 to 70 μm can reach 313 mg/(mol·h·Pa). As the iodine amount is reduced, bulk density of the prepolymer decreases from 0.28 g/cm3 to 0.25 g/cm3 while the average particle size of the prepolymer increases gradually from 155.42 μm to 186.50 μm, in addition, the content of fine powder of the prepolymer lowered from 27.1% to 14.8%. The observation of the prepolymer under SEM demonstrates that the shape of the prepolymer particle approaches sphere and its fluidity reaches class II (high class) after introducing SiO2 into the catalyst system.en_HK
dc.languageengen_HK
dc.relation.ispartofHecheng Shuzhi Ji Suliao/China Synthetic Resin and Plasticsen_HK
dc.subjectBulk Densityen_HK
dc.subjectMagnesium Powderen_HK
dc.subjectMorphologyen_HK
dc.subjectParticleen_HK
dc.subjectPolyethylene Catalysten_HK
dc.titleHigh activity Ziegler-Natta catalyst made from Mg powderen_HK
dc.typeArticleen_HK
dc.identifier.emailLiu, F:fordliu@hku.hken_HK
dc.identifier.authorityLiu, F=rp1358en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-33645913864en_HK
dc.identifier.volume23en_HK
dc.identifier.issue2en_HK
dc.identifier.spage16en_HK
dc.identifier.epage19+23en_HK

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