PRODUCTION OF OLEFIN POLYMERIZING OR COPOLYMERIZING CATALYST

Title:

PRODUCTION OF OLEFIN POLYMERIZING OR COPOLYMERIZING CATALYST

Document Type and Number:

Japanese Patent JPS62253604

Kind Code:

A

Abstract:

A method of preparing a high pore volume, high surface area zirconia-titania-silica tergel useful as an olefin polymerization or copolymerization catalyst support comprises the steps of coprecipitating hydrous zirconia, hydrous titania and hydrous silica, aging and washing the resulting hydrotergel, removing water from the washed hydrotergel and optionally calcining the resulting xerotergel. Resins with predetermined properties such as high melt index, broad molecular weight distribution, high weight swell, etc. can be produced from catalysts of the chromium or Ziegler type based on these supports.

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Inventors:

ROBAATO AREGUZANDA DOMUBURO
UIRIAMU KAAKU

Application Number:

JP30900286A

Publication Date:

November 05, 1987

Filing Date:

December 26, 1986

Export Citation:

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Assignee:

CHEMPLEX CO

International Classes:

B01J21/06; B01J21/08; C01B33/00; C01B33/12; C08F4/60; C08F4/62; C08F4/64; C08F4/659; C08F10/00; (IPC1-7): C08F4/64; C08F10/00

Attorney, Agent or Firm:

Motohiro Kurauchi

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