Methods of making and using catalyst precursor

Details Methods of making and using catalyst precursor Methods of making and using catalyst precursor

1998-10-14

1999-10-05

Wood, Elizabeth D

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

Catalyst or precursor therefor

Plural component system comprising a - group i to iv metal...

502102, 502103, 502104, 502115, 502118, 502119, 502120, 502121, 502122, 502123, 502124, 502125, 502126, 502127, 502128, 502129, 502130, 502131, 502132, 502133, 502134, 526943, B01J 3100

Patent

active

059623616

ABSTRACT:
A method of making a solid, substantially dry olefin polymerization procatalyst precursor is disclosed whereby a solid precursor containing magnesium and titanium is formed in a slurry or solution, the solid then is separated from the solution and then dried at a temperature above 50.degree. C. for over an hour. Solid, substantially dry olefin polymerization procatalyst precursors made by the method also are disclosed, whereby the precursors are easier to handle, have better flowability, reduced clumpness and provide catalysts that can be used to produce polymers having improved extrudability, less filter clogging, less "talc"-like polymer particles of <10 micron in size and reduced polymer product segregation in storage.

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