公开(公告)号：AT84549T

公开(公告)日：1993-01-15

申请号：AT89107887

申请日：1989-04-29

Applicant: BASF AG

Inventor： BORHO KLAUS DR ,  BULLACK HORST ,  HAUSS ALFRED FRIEDRICH DR ,  HENNENBERGER PETER DR ,  HILLIGARDT KLAUS DR ,  KNAUER BENNO ,  RIZK FARID PROF DR ,  VOGT HEINZ DR

IPC: C08F210/02 ,  C08F2/34 ,  C08F6/00 ,  C08F6/26 ,  C08F10/00

公开(公告)号：AT58383T

公开(公告)日：1990-11-15

申请号：AT86117827

申请日：1986-12-20

Applicant: BASF AG

Inventor： BULLACK HORST ,  OEDER DIETER DR ,  BELL HANS

IPC: C08F2/34 ,  C08F2/44 ,  C08F10/00 ,  C08F10/02 ,  C08F210/16

公开(公告)号：DE3815487A1

公开(公告)日：1989-11-16

申请号：DE3815487

申请日：1988-05-06

Applicant: BASF AG

Inventor： BORHO KLAUS DR ,  BULLACK HORST ,  HAUSS ALFRED FRIEDRICH DR ,  HENNENBERGER PETER DR ,  HILLIGARDT KLAUS DR ,  KNAUER BENNO ,  RIZK FARID PROF DR ,  VOGT HEINZ DR

IPC: C08F210/02 ,  C08F2/34 ,  C08F6/00 ,  C08F6/26 ,  C08F10/00

Abstract: A process for the continuous preparation of ethylene- alpha -olefin copolymers by catalytic dry-phase copolymerisation of the monomers in a stirred or fluidised polymerisation zone, transfer of the resultant mixture of solid copolymer and unreacted gaseous monomers into a decompression zone, reduction of the pressure of the mixture, separation of the mixture into a gaseous phase and a solid phase, the solid phase being preflushed continuously with gaseous ethylene and subsequently being flushed with a mixture of nitrogen and steam, gives ethylene copolymers which have been very substantially freed from residual monomers, fragrances and flavours.

公开(公告)号：DE59305514D1

公开(公告)日：1997-04-03

申请号：DE59305514

申请日：1993-05-13

Applicant: BASF AG

Inventor： SCHAUSS ECKARD DR ,  HENNENBERGER PETER DR ,  BULLACK HORST ,  SCHWEIER GUENTHER DR ,  KNAUER BENNO

IPC: C08F2/34 ,  C08F4/646 ,  C08F4/656 ,  C08F10/00 ,  C08F10/02 ,  C08F210/16

公开(公告)号：DE4217171A1

公开(公告)日：1993-11-25

申请号：DE4217171

申请日：1992-05-23

Applicant: BASF AG

Inventor： SCHAUSS ECKARD DR ,  HENNENBERGER PETER DR ,  BULLACK HORST ,  SCHWEIER GUENTHER DR ,  KNAUER BENNO

IPC: C08F2/34 ,  C08F4/646 ,  C08F4/656 ,  C08F10/00 ,  C08F10/02 ,  C08F210/16

公开(公告)号：DE3735937A1

公开(公告)日：1989-05-03

申请号：DE3735937

申请日：1987-10-23

Applicant: BASF AG

Inventor： BULLACK HORST ,  BELL HANS ,  WURZEL MANFRED ,  OEDER DIETER DR

IPC: C08F2/00 ,  C08F2/14 ,  C08F6/00 ,  C08F10/00

公开(公告)号：ES2097941T3

公开(公告)日：1997-04-16

申请号：ES93107790

申请日：1993-05-13

Applicant: BASF AG

Inventor： SCHAUSS ECKARD DR ,  HENNENBERGER PETER DR ,  BULLACK HORST ,  SCHWEIER GUENTHER DR ,  KNAUER BENNO

IPC: C08F2/34 ,  C08F4/646 ,  C08F4/656 ,  C08F10/00 ,  C08F10/02 ,  C08F210/16

公开(公告)号：DE3882004D1

公开(公告)日：1993-07-29

申请号：DE3882004

申请日：1988-10-15

Applicant: BASF AG

Inventor： BULLACK HORST ,  BELL HANS ,  WURZEL MANFRED ,  OEDER DIETER DR

IPC: C08F2/00 ,  C08F2/14 ,  C08F6/00 ,  C08F10/00

Abstract: Prodn. of low pressure olefin polymers (I) is carried out by polymerisation of the monomers (II) at 5-50 bar and max. 110 deg.C in low boiling hydrocarbons (III) as suspension medium in a polymerisation zone, sepn. of the resultant polymers from most of (III) in a pressure relief zone by reducing the pressure and removing the residual (III) and (II) in a drying zone at 1-1.2 bar by introducing an inert gas (IV) stream. The novel features are that (a) the pressure in the pressure relief zone is reduced to 1.5-3 bar; and the pressure relief and drying zones are connected by a gas-tight bucket wheel lock. Pref. the pressure is reduced to 1.5-2 bar in the pressure relief zone. The drying zone consists of 2 zones in series, both purged with (IV) in countercurrent.

公开(公告)号：AT90947T

公开(公告)日：1993-07-15

申请号：AT88117212

申请日：1988-10-15

Applicant: BASF AG

Inventor： BULLACK HORST ,  BELL HANS ,  WURZEL MANFRED ,  OEDER DIETER DR

IPC: C08F2/00 ,  C08F2/14 ,  C08F6/00 ,  C08F10/00

公开(公告)号：DE58903258D1

公开(公告)日：1993-02-25

申请号：DE58903258

申请日：1989-04-29

Applicant: BASF AG

Inventor： BORHO KLAUS DR ,  BULLACK HORST ,  HAUSS ALFRED FRIEDRICH DR ,  HENNENBERGER PETER DR ,  HILLIGARDT KLAUS DR ,  KNAUER BENNO ,  RIZK FARID PROF DR ,  VOGT HEINZ DR

IPC: C08F210/02 ,  C08F2/34 ,  C08F6/00 ,  C08F6/26 ,  C08F10/00

Abstract: A process for the continuous preparation of ethylene- alpha -olefin copolymers by catalytic dry-phase copolymerisation of the monomers in a stirred or fluidised polymerisation zone, transfer of the resultant mixture of solid copolymer and unreacted gaseous monomers into a decompression zone, reduction of the pressure of the mixture, separation of the mixture into a gaseous phase and a solid phase, the solid phase being preflushed continuously with gaseous ethylene and subsequently being flushed with a mixture of nitrogen and steam, gives ethylene copolymers which have been very substantially freed from residual monomers, fragrances and flavours.