섬유

Synthesis of Oxide-Supported Vanadium Catalysts and Their Activity in Ethylene Polymerization

  • 출판일1999.10
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 251
Researchers studied the activity of oxide supported vanadium based catalyst systems (VOCI(3)/Et(2)AICI) in low pressure ethylene polymerization and the properties of the resultant polyethylenes in relation to the type and mode of modification of the oxide support. Alumina, silica, and an unconventional silica type material prepared by the sol-gel process were used as supports. The silica type sol-gel material dehydrated and subsequently modified with Et(2)AICI proved to be the best carrier for a vanadium catalyst. The polyethylene prepared by this catalyst support exhibited good morphology, especially when compared with the polymer prepared over the more active Mg-V-Al catalyst. 9 refs.
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