Olefin polymerization over supported chromium oxide catalysts

@article{Weckhuysen1999OlefinPO,
  title={Olefin polymerization over supported chromium oxide catalysts},
  author={Bert M. Weckhuysen and Robert A. Schoonheydt},
  journal={Catalysis Today},
  year={1999},
  volume={51},
  pages={215-221}
}
Preparation of Cr–Ti Binary Oxide Anchored Mesoporous Silica by CVD Method and Their Photocatalytic Activities
Cr–Ti binary oxide anchored mesoporous silica (Cr–Ti/MCM-41) was prepared by stepwise CVD treatments of MCM-41 with TiCl4 and CrO2Cl2. Cr–Ti/MCM-41 exhibited higher efficiency for the photocatalytic
Visualization of local ethylene polymerization activity on a flat CrOx/SiO2/Si(100) model catalyst
Flat model catalysts give access to fundamental aspects of olefin polymerization over heterogeneous catalysts. They are especially suited for the investigation on the early stages of polymer film
Preparation of bimodal HDPEs with metallocene on Cr‐montmorillonite support
Previously described Cr-montmorillonite (Cr-MMT) was found to retain reactivity in the ethylene polymerization reaction regardless of which alkyl-metal was used for workup in the preparation process,
Oligo- and Polymerization of Olefins
  • R. Köhn
  • Materials Science, Chemistry
  • 2013
Synthesis and Characterization of Chromium-Based Catalysts for Ethylene-1-hexene Copolymers Preparation via In-Situ Polymerization of Ethylene
The tandem catalysis system including the trimerization catalyst of CrCl3/SNS (SNS = bis-(2-pentylsulfanyl-ethyl)-amine) (Cat 1) and the copolymerization catalyst Cat 2 of Cr/SiO2 (Grace 643) has
Effect of support structure on the activity of Cr/nanosilica catalysts and the morphology of prepared polyethylene
Phillips-type catalysts are responsible for the commercial production of more than one-third of all polyethylene sold worldwide. Many types of chromium-based catalysts are used in the Phillips
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References

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Olefin Polymerization on Supported Chromium Oxide Catalysts
Abstract There are at least three heterogeneous catalyst systems of interest for low-pressure polymerization of olefins to high polymers:
Chromia/silica—titania cogel catalysts for ethene polymerisation. Polymer characteristics
The influence on polyethene characteristics of titania incorporation into a Cr/silica catalyst, CO reduction and productivity has been investigated. Molecular weight (MW) and molecular-weight
WORKING SURFACE SCIENCE MODEL FOR THE PHILLIPS ETHYLENE POLYMERIZATION CATALYST : PREPARATION AND TESTING
A surface science model for the Phillips ethylene polymerization catalyst has been prepared, by impregnating aqueous CrO3 on a flat silicium (100) substrate covered by amorphous silica. Impregnating
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