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公开(公告)号:ES2228740T3
公开(公告)日:2005-04-16
申请号:ES01129790
申请日:2001-12-14
Applicant: BASF AG
Inventor: LANG ORTMUND , RUMPF BERND DR , FRAUENKRON MATTHIAS DR , FUNHOFF DIRK DR , MANDERBACH THOMAS DR , STEIN BERND DR
IPC: C07D487/08
Abstract: Procedimiento para la obtención de una disolución de trietilendiamina pura (TEDA), que está caracterizado porque se evapora TEDA a partir de una mezcla que contiene un disolvente o un diluyente, presentando el disolvente o diluyente, a presión normal un punto de ebullición en el intervalo de 175 a 250ºC, e introduciéndose la TEDA en forma de vapor en un disolvente líquido.
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公开(公告)号:ES2279250T3
公开(公告)日:2007-08-16
申请号:ES04008167
申请日:2004-04-03
Applicant: BASF AG
Inventor: ORTMUND LANG , RUMPF BERND DR , FRAUENKRON MATTHIAS DR , BOSCH MARCO DR , BERRSCHE HELMUT DR , MEIER ANTON DR
IPC: B01D3/32 , B01D3/14 , B01J19/32 , C07C209/84 , C07C211/10 , C07D487/08
Abstract: Procedimiento para la purificación mediante destilación de la trietilendiamina (TEDA), caracterizado porque la separación se lleva a cabo en una columna con pared separadora, cuya chapa separadora, situada en su interior, está conducida hacia abajo hasta la cola, de tal manera que en la zona inferior de la columna se formen recintos independientes.
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公开(公告)号:ES2243619T3
公开(公告)日:2005-12-01
申请号:ES02010129
申请日:2002-05-10
Applicant: BASF AG
Inventor: LANG ORTMUND , RUMPF BERND DR , FRAUENKRON MATTHIAS DR , FUNHOFF DIRK DR , MANDERBACH THOMAS DR , STEIN BERND DR
IPC: C07D487/04 , C07D487/08
Abstract: Procedimiento para la purificación de trietilendiamina (TEDA), en el que la TEDA se evapora y la TEDA en estado de vapor se hace pasar a través de un disolvente líquido y, a continuación, se separa por cristalización a partir del mismo, caracterizado porque las lejías madre, obtenidas tras la separación por cristalización de la TEDA, se extraen con un agente de extracción, que no sea miscible, o que únicamente sea poco miscible, con el disolvente de las lejías madre y en el que se disuelva perfectamente la TEDA, y se reciclan hasta el procedimiento las lejías madre, empobrecidas en TEDA, obtenidas tras la extracción y/o el agente de extracción enriquecido con TEDA, empleado para la extracción.
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公开(公告)号:DE502004002595D1
公开(公告)日:2007-02-22
申请号:DE502004002595
申请日:2004-04-03
Applicant: BASF AG
Inventor: ORTMUND LANG , RUMPF BERND DR , FRAUENKRON MATTHIAS DR , BOSCH MARCO DR , BERRSCHE HELMUT DR , MEIER ANTON DR
IPC: B01D3/32 , B01D3/14 , B01J19/32 , C07C209/84 , C07C211/10 , C07D487/08
Abstract: Distillative purification of triethylene diamine (TEDA) is carried out in a partitioned column.
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公开(公告)号:AT279414T
公开(公告)日:2004-10-15
申请号:AT01129790
申请日:2001-12-14
Applicant: BASF AG
Inventor: LANG ORTMUND , RUMPF BERND DR , FRAUENKRON MATTHIAS DR , FUNHOFF DIRK DR , MANDERBACH THOMAS DR , STEIN BERND DR
IPC: C07D487/08 , C07D241/00
Abstract: The invention relates to the preparation of pure triethylenediamine (TEDA) by evaporating TEDA from the mixture comprising a solvent or diluent, where the solvent or diluent has a boiling point at atmospheric pressure in the range from 175 to 250° C., passing the vapor-form TEDA into a liquid solvent, and subsequently crystallizing the TEDA out of the resultant solution.
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公开(公告)号:MY139807A
公开(公告)日:2009-10-30
申请号:MYPI20050531
申请日:2005-02-14
Applicant: BASF AG
Inventor: RUMPF BERND DR , STROEFER ECKHARD DR , LANG ORTMUND , LANG NEVEN DR
Abstract: A PROCESS FOR PREPARING A HIGH-CONCENTRATION FORMALDEHYDE SOLUTION BY REMOVING WATER FROM A LOWER-CONCENTRATION FORMALDEHYDE SOLUTION HAVING A FORMALDEHYDE CONTENT OF FROM 5 TO 50% BY WEIGHT, IN WHICH THE LOWER-CONCENTRATION FORMALDEHYDE SOLUTION IS FED TO A PREHEATER AND HEATED IN THE PREHEATER, DEPESSURIZED VIA A PRESSURE MAINTENANCE DEVICE AND CONCENTRATED IN A HELICAL TUBE EVAPORATOR TO GIVE A VAPOR STREAM AND THE HIGH-CONCENTRATION FORMALDEHYDE SOLUTION AS BOTTOM STREAM, WHEREIN THE HEATED LOWER-CONCENTRATION FORMALDEHYDE SOLUTION IS DEPRESSURIZED IN THE PRESSURE MAINTENANCE DEVICE TO GIVE A TWO-PHASE MIXTURE WHICH IS FED INTO THE HELICAL TUBE EVAPORATOR, IS PROPOSED.
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公开(公告)号:AT298340T
公开(公告)日:2005-07-15
申请号:AT02010129
申请日:2002-05-10
Applicant: BASF AG
Inventor: LANG ORTMUND , RUMPF BERND DR , FRAUENKRON MATTHIAS DR , FUNHOFF DIRK DR , MANDERBACH THOMAS DR , STEIN BERND DR
IPC: C07D487/04 , C07D487/08
Abstract: Purification of triethylene diamine (TEDA) comprises crystallization and extraction of the resulting mother liquor with an extraction agent that is at most only slightly miscible with the solvent of the mother liquor but in which TEDA is soluble. Following extraction, the treated mother liquor with reduced TEDA content and/or the extraction agent enriched in TEDA is recycled to the process. A process for the purification of triethylene diamine (TEDA) by evaporation and feeding the TEDA vapor to a liquid solvent followed by crystallization is characterized in that following crystallization of the TEDA the resulting mother liquor is extracted with an extraction agent that is at most only slightly miscible with the solvent of the mother liquor but in which TEDA is soluble. Following extraction, the treated mother liquor with reduced TEDA content and/or the extraction agent enriched in TEDA is recycled to the process.
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