Title:
重合リアクターを空にするための方法及び装置
Document Type and Number:
Japanese Patent JP4558941
Kind Code:
B2
Abstract:
A method and an apparatus of discharging polymer from a continuously operated gas phase reactor, wherein at least one monomer is polymerized in a bed containing active catalyst formed by catalyst and polymer particles suspended in a fluid, the bed defining a fluidized bed level in said reactor. The invention comprises continuously withdrawing polymer powder from the reactor; and adjusting the discharge rate of the polymer powder so as to maintain a constant bed level during polymerization. By means of the invention the discharge of the polymer can be made truly continuous without any disturbance of the polymerization. The rate of withdrawn polymer can be flexibly adjusted depending on the progress of the polymerization and it can also easily be scaled up if the capacity of the reactor is increased.
Inventors:
Kibouler, Joni
Niphors, claus
Niphors, claus
Application Number:
JP2000582437A
Publication Date:
October 06, 2010
Filing Date:
November 12, 1999
Export Citation:
Assignee:
Borealis Technology Oy
International Classes:
C08F2/01; B01J8/00; B01J8/24; C08F2/34; C08F10/00; C08F32/00; C08F36/00; C08F36/04
Domestic Patent References:
| JP10279611A | ||||
| JP10503800A | ||||
| JP8100009A | ||||
| JP58201802A | ||||
| JP10503799A | ||||
| JP2001527582A | ||||
| JP2000053707A |
Attorney, Agent or Firm:
Mitsuo Matsui