Process and apparatus for producing olefin polymers

Details Process and apparatus for producing olefin polymers Process and apparatus for producing olefin polymers

2005-04-29

2010-06-22

Cheung, William K (Department: 1796)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Organic polymerization

C526S067000, C526S064000, C526S089000, C526S090000, C526S226000

Reexamination Certificate

active

07740808

ABSTRACT:
The present invention concerns a process and an apparatus for continuous polymerisation of olefin monomers. In particular, the present invention concerns a process and an apparatus for continuous polymerisation olefin monomers like ethylene and other monomers, wherein an olefin monomer is polymerised in slurry phase in an inert hydrocarbon diluent in at least one loop reactor. According to the invention, a polymer slurry is continuously withdrawn from the loop reactor and concentrated. The concentrated slurry is conducted to a flash unit in order to remove the remaining fluid phase, and gas obtained is compressed in a flash gas compressor before it is being fed to a distillation section. By means of the present invention it is possible reduce the size of the flash gas compressor and the capacity of the distillation sections. This significantly reduces investment cost for a continuously operated polymerization apparatus.

REFERENCES:
patent: 2003/0050409 (2003-03-01), Hottovy et al.

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