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公开(公告)号：PL185021B1
公开(公告)日：2003-02-28
申请号：PL31000294
申请日：1994-01-21
Applicant: HOECHST AG
Inventor： EICHLER JUERGEN , KRUMBOECK REINHARD , KUEHN WENZEL , SCHWARZMAIER PETER , WILD THOMAS , SPIELMANNLEITNER RUDOLF , STOEGER MANFRED , MIELKE INGOLF
IPC: B01J27/128 , C07B61/00 , C07C17/02 , C07C19/045
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公开(公告)号：HU219385B
公开(公告)日：2001-03-28
申请号：HU9601545
申请日：1994-12-06
Applicant: HOECHST AG
Inventor： KALLIWODA HELMUT , KAMMERHOFER PETER , MIELKE INGOLF , SCHWARZMAIER PETER , STOEGER MANFRED
IPC: B01J14/00 , C07C17/25 , C07C17/38 , C07C17/383 , C07C17/389 , C07C21/06
Abstract: In the preparation of vinyl chloride by thermal cracking of 1,2-dichloroethane, three distillation stages are used to distill off first hydrogen chloride, then vinyl chloride and finally entrained hydrogen chloride with vinyl chloride. If, in the last stage, entrained water is not drawn off via the bottom, it is recirculated with the top product to the first stage and causes corrosion. Removal of the water at the top of the third distillation stage, advantageously by drying, prevents the corrosion.
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公开(公告)号：BG62484B1
公开(公告)日：1999-12-30
申请号：BG10057696
申请日：1996-05-07
Applicant: HOECHST AG
Inventor： SCHWARZMAIER PETER , KAMMERHOFER PETER , STOEGER MANFRED , KALLIWODA HELMUT , MIELKE INGOLF
IPC: B01J14/00 , C07C17/25 , C07C17/38 , C07C17/383 , C07C17/389 , C07C21/06
Abstract: In the production of vinyl chloride by the thermal splittingof 1,2-dichloroethane, first of all hydrogen chloride, then vinylchloride and finally hydrogen chloride taken along with vinylchloride are distilled off in three stages. If water carried overin the final stage is not drained off through the bottom of thestage, it is taken back with the head product into the first stageand causes corrosion. Removal of the water at the head of thethird distillation stage, preferably by drying, preventscorrosion.7 claims, 1 figure
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公开(公告)号：IN183203B
公开(公告)日：1999-10-02
申请号：IN1079CA1994
申请日：1994-12-26
Applicant: HOECHST AG
Inventor： SCHWARZMAIER PETER , HAECKL PETER , STOEGER MANFRED , MIELKE INGOLF
IPC: C07C21/06
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公开(公告)号：DE59504069D1
公开(公告)日：1998-12-03
申请号：DE59504069
申请日：1995-02-06
Applicant: HOECHST AG
Inventor： SCHWARZMAIER PETER , HAECKL PETER , STOEGER MANFRED , MIELKE INGOLF
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Patent Agency Ranking
公开(公告)号：ZA9705935B
公开(公告)日：1998-01-05
申请号：ZA9705935
申请日：1997-07-03
Applicant: HOECHST AG
Inventor： SCHWARZMAIER PETER , MIELKE INGOLF , GRUMANN HELMUT
CPC classification number: B01J19/26 , B01J10/002 , B01J19/1881 , B01J2219/00103 , B01J2219/00108 , C07C17/02 , C07C19/045
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公开(公告)号：BR9508311A
公开(公告)日：1997-12-23
申请号：BR9508311
申请日：1995-07-15
Applicant: HOECHST AG
Inventor： EICHLER JUERGEN , MIELKE INGOLF , SCHWARZMAIER PETER , STOEGER MANFRED , WILD THOMAS
IPC: B01J27/128 , C07B61/00 , C07C17/02 , C07C19/045
Abstract: The invention concerns a process for preparing 1,2-dichloroethane (EDC) by feeding chlorine and ethylene into circulated EDC which contains a catalyst. A partial stream of the reaction mixture is fed to a flash vaporization system and the vaporized EDC is separated from its light volatile components which are returned to the reaction.
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公开(公告)号：NO970237A
公开(公告)日：1997-01-20
申请号：NO970237
申请日：1997-01-20
Applicant: HOECHST AG
Inventor： EICHLER JUERGEN , MIELKE INGOLF , SCHWARZMAIER PETER , STOEGER MANFRED , WILD THOMAS
IPC: B01J27/128 , C07B61/00 , C07C17/02 , C07C19/045
CPC classification number: C07C17/02 , C07C19/045
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公开(公告)号：NO963238L
公开(公告)日：1996-08-02
申请号：NO963238
申请日：1996-08-02
Applicant: HOECHST AG
Inventor： SCHWARZMAIER PETER , HAECKL PETER , STOEGER MANFRED , MIELKE INGOLF
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10.发明专利
公开(公告)号：ZA9506058B
公开(公告)日：1996-02-27
申请号：ZA9506058
申请日：1995-07-20
Applicant: HOECHST AG
Inventor： EICHLER JUERGEN , MIELKE INGOLF , SCHWARZMAIER PETER , STOEGER MANFRED , WILD THOMAS
IPC: B01J27/128 , C07B61/00 , C07C17/02 , C07C19/045 , C07C
CPC classification number: C07C17/02 , C07C19/045
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