Title:
【発明の名称】スラリー重合における連続的な揮発物の除去
Document Type and Number:
Japanese Patent JP2003526696
Kind Code:
A
Abstract:
A process/apparatus is disclosed for continuously separating a liquid medium comprising diluent and unreacted monomers from a polymerization effluent comprising diluent, unreacted monomers and polymer solids, comprising a continuous discharge of the polymerization effluent from a slurry reactor through a discharge valve and transfer conduit into a first intermediate pressure flash tank with a conical bottom defined by substantially straight sides inclined at an angle to that of horizontal equal to or greater than the angle of slide of the slurry/polymer solids and an exit seal chamber of such diameter (d) and length (1) as to maintain a desired volume of concentrated polymer solids/slurry in the exit seal chamber such as to form a pressure seal while continuously discharging a plug flow of concentrated polymer solids/slurry bottom product of said first flash tank from the exit seal chamber through a seal chamber exit reducer with inclined sides defined by substantially straight sides inclined at an angle to that of horizontal equal to or greater than the angle of slide of the polymer solids which remain after removal of about 50 to 100% of the inert diluent therefrom to a second flash tank at a lower pressure.
Inventors:
Kendrick, James A.
Truth, Thomas W
Roger, Scott Tea
Truth, Thomas W
Roger, Scott Tea
Application Number:
JP2000549646A
Publication Date:
September 09, 2003
Filing Date:
May 18, 1999
Export Citation:
Assignee:
ExxonMobil Chemical Patents, Inc.
International Classes:
B01D3/06; B01J8/00; B01J8/20; B01J8/38; B01J19/18; B01J19/24; C08F2/00; C08F2/01; C08F6/00; C08F6/24; C08F10/00; C08F210/16; (IPC1-7): C08F6/00; B01J19/18; B01J19/24; C08F2/01
Attorney, Agent or Firm:
Yuzo Yamazaki (2 outside)