公开(公告)号：JPH10182738A

公开(公告)日：1998-07-07

申请号：JP35132397

申请日：1997-12-19

Applicant: BASF AG

Inventor： KERSTING MEINOLF ,  WERNER RAINER ALEXANDER ,  LANGHAUSER FRANZ ,  LUTZ GERALD

IPC: C08F4/64 ,  B01J8/00 ,  B01J8/10 ,  B01J8/24 ,  B01J19/18 ,  C08F2/34 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00 ,  C08F110/06 ,  C08F210/06 ,  C08F255/02

Abstract: PROBLEM TO BE SOLVED: To provide a process for homopolymerization or copolymerization of a 2-8C alk-1-ene which enables excellent mixing of a transition metal- containing solid catalyst. SOLUTION: A Ziegler-Natta or Metallocene solid catalyst system which contains a transition metal is supplied into a reaction vessel 1 together with at least a portion of a 2-8C alk-1-ene which is metered and supplied into the reaction vessel 1 via one or more pipes 4 and gas-phase polymerization is conducted inside an agitation bed 2 of finely divided polymer, wherein the pipes are protruding perpendicularly or substantially perpendicularly from above into the gaseous space and ending above the pulverulent agitation bed 2.

公开(公告)号：DE19653079A1

公开(公告)日：1998-06-25

申请号：DE19653079

申请日：1996-12-19

Applicant: BASF AG

Inventor： KERSTING MEINOLF ,  WERNER RAINER ALEXANDER ,  LANGHAUSER FRANZ ,  LUTZ GERALD

IPC: B01J8/00 ,  B01J8/10 ,  B01J8/24 ,  C08F4/64 ,  B01J19/18 ,  C08F2/34 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00 ,  C08F110/06 ,  C08F210/06 ,  C08F255/02

Abstract: Gas phase homo- or copolymerisation of 2-8C alk-1-enes with a Ziegler-Natta or metallocene catalyst system is carried out in a stirred bed of finely-divided polymer, with addition of the catalyst solid (I) containing transition metal with the alkene. The novelty is that (I) is introduced into the reactor with (part of) the alkene through (almost) vertical pipe(s) projecting down into the gas space and ending above the stirred powder bed. Also claimed is the apparatus used. Preferably the vertical distance between the pipe(s) and the surface of the bed is