Vapor phase processes for the polymerization of olefins

Details Vapor phase processes for the polymerization of olefins Vapor phase processes for the polymerization of olefins

1978-05-19

1980-04-29

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

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

Patent

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.

REFERENCES:
patent: 2967834 (1961-01-01), Daniel et al.
patent: 3061601 (1962-10-01), Watt
patent: 3361681 (1968-01-01), Muller
patent: 3652527 (1972-03-01), Trieschmann et al.
patent: 3779712 (1973-12-01), Calvert et al.
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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