Title:
オレフィン重合のための気相プロセス及び装置
Document Type and Number:
Japanese Patent JP2009520848
Kind Code:
A
Abstract:
A gas-phase process for polymerizing one or more a-olefins in a fluidized bed reactor in the presence of a polymerization catalyst, said fluidized bed reactor being equipped with a fluidization grid arranged at its base, and external means for recycling and cooling the unreacted gas from the top of said reactor to said fluidization grid, the process being characterized by: (i) a continuous pneumatic recycle of polymer by means of a circulation loop connecting said fluidization grid to the upper region of the fluidized bed reactor; (ii) a continuous discharge of polymer from a zone of said circulation loop having a polymer concentration higher than the polymer concentration inside the fluidized polymer bed.
Inventors:
Penzo, Giuseppe
Rinaldi, Robert
Rinaldi, Robert
Application Number:
JP2008546331A
Publication Date:
May 28, 2009
Filing Date:
November 27, 2006
Export Citation:
Assignee:
Basel, Polyolefin, Italy, Sochieta, A Responsorabilita, Limitata
International Classes:
C08F2/34; C08F10/00
Foreign References:
| WO2004033505A1 | 2004-04-22 |
Attorney, Agent or Firm:
Shinjiro Ono
Kazuo Shamoto
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Okimoto Kazuaki
Ken Matsumoto
Minako Matsuyama
Takako Koiso
Kazuo Shamoto
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Okimoto Kazuaki
Ken Matsumoto
Minako Matsuyama
Takako Koiso