Vapor phase polymerization apparatus for olefins

Details Vapor phase polymerization apparatus for olefins Vapor phase polymerization apparatus for olefins

B - Operations, Transporting

01

J

23/381

B01J 8/10 (2006.01) C08F 2/00 (2006.01) C08F 2/34 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1163088

ABSTRACT OF THE DISCLOSURE The disclosure describes a vapor phase polymeriza- tion apparatus for olefins comprising a horizontal hollow cylindrical vessel having a lower curved surface which is constructed by a perforated plate, one or more agitator vanes on a driving shaft centrally located in said vessel, an olefin feed chamber mounted so as to cover from below said perforated plate and adapted to feed a olefin gas through said perforated plate, a polymerization catalyst inlet port, a polymer outlet port and an unreacted olefin gas discharge port, which ports are all provided in other portions than the curved perforated portion of said vessel. With this apparatus hot spots are not usually formed during polymerization, so that there is no production of block-like polymers and less power is needed for agitation. Also, with this apparatus, it is possible to produce polymers having a suitable particle size distribution at low cost and which are stable.

373218

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