Process for polymerizing olefins with a spray-dried catalyst

Details Process for polymerizing olefins with a spray-dried catalyst Process for polymerizing olefins with a spray-dried catalyst

1983-08-22

1986-12-16

Smith, Edward J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526124, 526129, 526139, 526140, 526142, 526156, 526159, 526903, 526904, C08F 464, C08F 1000

Patent

active

046297715

ABSTRACT:
A suspension which comprises an inert liquid medium, a solid material, a transition metal compound and an agglomeration aid is dried using a spray-drying technique. The spray-drying is effected under conditions of temperature and pressure which are such as to cause evaporation of the liquid medium. The solid material is preferably in a finely-divided form and may consist essentially of a transition metal compound or may be a transition metal compound which is supported on a suitable solid inert matrix material. Alternatively, a suspension of a solid support material in a solution of a transition metal compound may be used. The agglomeration aid may be polystyrene dissolved in the inert liquid medium. The dried solid is obtained as an agglomerated solid which can be mixed with an organic compound of a non-transition metal to give an olefin polymerization catalyst system.

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