Zirconia-titania-silica tergels and their use as catalyst suppor

Details Zirconia-titania-silica tergels and their use as catalyst suppor Zirconia-titania-silica tergels and their use as catalyst suppor

1986-11-12

1988-12-13

Dees, Carl F.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Silicon containing or process of making

502239, B01J 2106, B01J 2010

Patent

active

047910895

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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