Vapor phase processes for the polymerization of olefins

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

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422131, 526106, 526130, 526142, 526159, 526169, 5261692, 526901, 526903, C08F 234, C08F 1002

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active

042007151

ABSTRACT:
A process is provided for the polymerization of an olefin such as ethylene in the vapor phase in a moving bed of particles of the polymerized olefin in which novel means are employed to feed the finely-divided solid polymerization catalyst to the polymerization zone. The process is carried out by pumping into the polymerization zone a Bingham fluid which has the finely-divided solid polymerization catalyst uniformly dispersed throughout a solid continuous phase, which is a mixture of a wax and a hydrocarbon which is a liquid at ambient temperature.

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patent: 3790550 (1974-02-01), Miller
patent: 3849334 (1974-11-01), Frielingsdorf et al.
patent: 3884857 (1975-05-01), Ballard et al.

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