公开(公告)号：BG101140A

公开(公告)日：1997-08-29

申请号：BG10114097

申请日：1997-01-16

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.

公开(公告)号：MX9700531A

公开(公告)日：1997-04-30

申请号：MX9700531

申请日：1995-07-15

Applicant: HOECHST AG

Inventor： EICHLER JURGEN ,  MIELKE INGOLF ,  SCHWARZMAIER PETER ,  STOEGER MANFRED ,  WILD THOMAS

IPC: B01J27/128 ,  C07B61/00 ,  C07C17/02 ,  C07C19/045

Abstract: 1,2-dicloroetano (EDC) se obtiene alimentando cloro y etileno en EDC que contiene catalizador circulado, una corriente parcial de la mezcla de reaccion siendo alimentada a la evaporacion instantánea, el EDC vaporizado siendo separado de los componente más fácilmente volátiles y éstos siendo recirculados a la reaccion.

公开(公告)号：MX9603313A

公开(公告)日：1997-02-28

申请号：MX9603313

申请日：1995-02-06

Applicant: HOECHST AG

Inventor： SCHWARZMAIER PETER ,  HAECKL PETER ,  STOEGER MANFRED ,  MIELKE INGOLF

IPC: C07C17/25 ,  C07C21/06

Abstract: La velocidad de conversion en la preparacion de cloruro de vinilo por craqueo térmico de 1,2-cicloroetano se determina midiendo la absorcion de radiacion de alta energía, la presion y la temperatura de los gases que salen de horno de craqueo.

公开(公告)号：CZ237996A3

公开(公告)日：1996-12-11

申请号：CZ237996

申请日：1995-02-06

Applicant: HOECHST AG

Inventor： SCHWARZMAIER PETER ,  HAECKL PETER ,  STOEGER MANFRED ,  MIELKE INGOLF

IPC: C07C17/25 ,  C07C21/06

公开(公告)号：HU9601545D0

公开(公告)日：1996-08-28

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.

公开(公告)号：NO963238D0

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

IPC: C07C17/25 ,  C07C21/06

公开(公告)号：NO962107D0

公开(公告)日：1996-05-23

申请号：NO962107

申请日：1996-05-23

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 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.

公开(公告)号：DE4425872A1

公开(公告)日：1996-01-25

申请号：DE4425872

申请日：1994-07-21

Applicant: HOECHST AG

Inventor： EICHLER JUERGEN ,  MIELKE INGOLF ,  SCHWARZMAIER PETER ,  STOEGER MANFRED ,  WILD THOMAS

IPC: B01J27/128 ,  C07B61/00 ,  C07C17/02 ,  C07C19/045 ,  C07C17/04

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.

公开(公告)号：CZ9501945A3

公开(公告)日：1995-12-13

申请号：CZ194595

申请日：1994-01-21

Applicant: HOECHST AG

Inventor： EICHLER JURGEN ,  KRUMBOCK REINHARD ,  KUHN WENZEL ,  SCHWARZMAIER PETER ,  WILD THOMAS ,  SPIELMANNLEITNER RUDOLF ,  STOGER MANFRED ,  MIELKE INGOLF

IPC: B01J27/128 ,  C07B61/00 ,  C07C17/02 ,  C07C19/045

CPC classification number: B01J27/128 ,  C07C17/02 ,  C07C19/045

公开(公告)号：ZA9501087B

公开(公告)日：1995-10-10

申请号：ZA9501087

申请日：1995-02-10

Applicant: HOECHST AG

Inventor： SCHWARZMAIER PETER ,  HAECKL PETER ,  STOEGER MANFRED ,  MIELKE INGOLF

IPC: C07C17/25 ,  C07C21/06 ,  C07C ,  B01D

CPC classification number: C07C17/25 ,  C07C21/06