公开(公告)号：DE3820154A1

公开(公告)日：1989-12-21

申请号：DE3820154

申请日：1988-06-14

Applicant: BASF AG

Inventor： PERNER THOMAS DR ,  WISTUBA ECKEHARDT DR

IPC: C04B24/26 ,  C04B24/28 ,  C04B26/04 ,  C08F218/04 ,  C09D131/02

公开(公告)号：DE19629988A1

公开(公告)日：1998-01-29

申请号：DE19629988

申请日：1996-07-25

Applicant: BASF AG

Inventor： LYNCH JOHN DR ,  PERNER THOMAS DR ,  HAHN SUSANNE DR ,  LUEDDECKE ERIK DR

IPC: C08F2/42 ,  C08F14/06

公开(公告)号：DE4430763A1

公开(公告)日：1996-03-07

申请号：DE4430763

申请日：1994-08-30

Applicant: BASF AG

Inventor： PERNER THOMAS DR ,  ELZER GUNTER

IPC: B01D19/00 ,  C08F6/00 ,  C08F6/24 ,  C08F6/14

Abstract: Appts. for intensive degassing of PVC dispersions consists of a polymerisation vessel (1), condenser (2) and vacuum unit (3). The novel features are that the vessel has a steam inlet (4) in the lower half and the vessel, condenser and vacuum unit are joined by a connector (5). Also claimed are the degassing process, in which unreacted vinyl chloride (VC) is removed with steam in this appts.; and the use of the equipment for degassing PVC dispersions. Pref. the condenser has an inert gas inlet (6) at the top.