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公开(公告)号：AU5980199A
公开(公告)日：2000-04-10
申请号：AU5980199
申请日：1999-09-21
Applicant: BASF AG
Inventor： THEIS GERHARD , ADRIAN TILL , BESSLING BERND , HASSE HANS , VANSANT FRANS
Abstract: A process for the distillative recovery of high purity monoethylene glycol from the hydrolysis, product of ethylene oxide by pressure dewatering, preferably in a battery, vacuum dewatering and subsequent purifying distillation, wherein during the vacuum dewatering an aqueous stream is withdrawn which contains-monoethylene glycol in a concentration below 1% by weight, preferably below 0.1% by weight, medium boilers and low boilers. The withdrawn aqueous stream is, optionally after further workup, removed from the system.
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公开(公告)号：CA2345053A1
公开(公告)日：2000-03-30
申请号：CA2345053
申请日：1999-09-21
Applicant: BASF AG
Inventor： VANSANT FRANS , THEIS GERHARD , BESSLING BERND , ADRIAN TILL , HASSE HANS
Abstract: The invention relates to a method for obtaining highly pure monoethylene glycol from the product of hydrolysis of ethylene oxide by distillation, by means of dehydration under pressure, preferably in a cascade, vacuum dehydration and subsequent pure distillation. During the vacuum dehydration, an aqueous stream containing monoethylene glycol in a concentration of less than 1 wt. %, preferably less than 0.1 wt. %, medium boilers and light boile rs is drawn off and then sluiced out, optionally after reprocessing.
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公开(公告)号：ID22856A
公开(公告)日：1999-12-09
申请号：ID990760
申请日：1998-01-29
Applicant: BASF AG
Inventor： BESSLING BERND , HASSE HAND , PLUCKHAN JURGEN , MAYER THOMAS , AUER HEINZ
IPC: C07D301/32 , C07D303/04 , B01D3/32
Abstract: In a process for purification of ethylene oxide by distillation an aqueous mixture comprising ethylene oxide, formaldehyde and at least 5% by weight of water is introduced via a feed into a distillation apparatus comprising at least one distillation column, the mixture being introduced at a height above the bottom of at least 8 theoretical stages, the ethylene oxide is taken off at the top and in the bottom phase a mixture is obtained which contains less than 5% by weight of ethylene oxide.
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Patent Agency Ranking
公开(公告)号：ES2129744T3
公开(公告)日：1999-06-16
申请号：ES95119855
申请日：1995-12-15
Applicant: BASF AG
Inventor： HAMMER HANS , HERR MANFRED , HUPFER LEOPOLD DR , BESSLING BERND , PAN DONGFENG DR , ZECK SEBASTIAN DR
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公开(公告)号：BR9611599A
公开(公告)日：1999-06-15
申请号：BR9611599
申请日：1996-11-05
Applicant: BASF AG
Inventor： BESSLING BERND , ZECK SEBASTIAN , PLUCKHAN JURGEN , MAYER THOMAS , LOFFLER ULRICH , SPIEGEL GUNTER , BALLENWEG RUBENS , BRUDI GERHARD , GIESELBERG KLAUS , HILPRECHT LUTZ , TERJUNG WINFRIED , AUER HEINZ , POLT AXEL WERNER , SCHOLL STEPHAN
IPC: B01D3/00 , B01D3/16 , C07D301/32 , C07D303/02 , C07D303/04
Abstract: PCT No. PCT/EP96/04818 Sec. 371 Date May 18, 1998 Sec. 102(e) Date May 18, 1998 PCT Filed Nov. 5, 1996 PCT Pub. No. WO97/19069 PCT Pub. Date May 29, 1997A process for distilling ethylene oxide out of a mixture including ethylene oxide in a column at an absolute pressure of from 2 to 10 bar and a temperature of 20 to 180 DEG C. by withdrawing pure ethylene oxide in the liquid or gaseous state overhead or via a sidestream in the rectifying section of the column includes effecting the distillation in a column having on its inside a plurality of successive zones of structured sheet-metal packing or dumped beds of packing elements, these zones being assigned one or more extinguishing systems on the outside of the column.
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公开(公告)号：DE59505506D1
公开(公告)日：1999-05-06
申请号：DE59505506
申请日：1995-12-15
Applicant: BASF AG
Inventor： HAMMER HANS , HERR MANFRED , HUPFER LEOPOLD DR , BESSLING BERND , PAN DONGFENG DR , ZECK SEBASTIAN DR , AUER HEINZ , SCHOENMAKERS HARTMUT DR
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公开(公告)号：PL326633A1
公开(公告)日：1998-10-12
申请号：PL32663396
申请日：1996-11-05
Applicant: BASF AG
Inventor： BESSLING BERND , ZECK SEBASTIAN , PLUECKHAN JUERGEN , MAYER THOMAS , LOEFFLER ULRICH , SPIEGEL GUENTER , BALLENWEG RUBENS , BRUDI GERHARD , GIESELBERG KLAUS , HILPRECHT LUTZ , TERJUNG WINFRIED , AUER HEINZ , POLT AXEL , SCHOLL STEPHAN
IPC: B01D3/00 , B01D3/16 , C07D301/32 , C07D303/02 , C07D303/04
Abstract: PCT No. PCT/EP96/04818 Sec. 371 Date May 18, 1998 Sec. 102(e) Date May 18, 1998 PCT Filed Nov. 5, 1996 PCT Pub. No. WO97/19069 PCT Pub. Date May 29, 1997A process for distilling ethylene oxide out of a mixture including ethylene oxide in a column at an absolute pressure of from 2 to 10 bar and a temperature of 20 to 180 DEG C. by withdrawing pure ethylene oxide in the liquid or gaseous state overhead or via a sidestream in the rectifying section of the column includes effecting the distillation in a column having on its inside a plurality of successive zones of structured sheet-metal packing or dumped beds of packing elements, these zones being assigned one or more extinguishing systems on the outside of the column.
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公开(公告)号：MX9803289A
公开(公告)日：1998-09-30
申请号：MX9803289
申请日：1998-04-27
Applicant: BASF AG
Inventor： BESSLING BERND , ZECK SEBASTIAN , PLUECKHAN JUERGEN , MAYER THOMAS , LOEFFLER ULRICH , SPIEGEL GUENTER , BALLENWEG RUBENS , BRUDI GERHARD , GIESELBERG KLAUS
IPC: B01D3/00 , B01D3/16 , C07D301/32 , C07D303/02 , C07D303/04
Abstract: La presente invencion se refiere a un proceso para destilar oxido de etileno de una mezcla que contiene oxido de etileno, en una columna a una presion absoluta de 2 a 10 bar y una temperatura de 20 a 180 degree C extrayendo oxido de etileno puro en el estado líquido o gaseoso en la parte elevada de una columna o a través de una corriente lateral en la zona de rectificacion de la columna, el proceso consiste en efectuar la destilacion en una columna que tiene en su interior una pluralidad de zonas sucesivas de empaquetamientos de metal laminar estructurado o lechos acumulados de elementos de empaquetamiento, estando estas zonas asignadas a uno o más sistemas de extincion en el exterior de la columna.
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