公开(公告)号：AT394382T

公开(公告)日：2008-05-15

申请号：AT06117876

申请日：2006-07-26

Applicant: BASF SE

Inventor： JOEDECKE MICHAEL ,  LANG ORTMUND ,  CAUWENBERGE GUNTHER ,  FRAUENKRON MATTHIAS

IPC: C07D295/00

Abstract: Continuous distillative separation of piperazine from ethylenediamine-piperazine mixture comprises subjecting the piperazine mixture into a cyclic motion, introducing the piperazine mixture into an evaporator unit at 160-170[deg]C, recycling the piperazine mixture into a distillation column and removing the piperazine from the sump of the distillation column after a retention time of approximately 30-60 minutes, where the ethylene diamine is discharged at the upper portion of the distillation column.

公开(公告)号：DE502006005367D1

公开(公告)日：2009-12-24

申请号：DE502006005367

申请日：2006-09-25

Applicant: BASF SE

Inventor： CAUWENBERGE GUNTHER ,  MELDER JOHANN-PETER ,  EVERS HOLGER ,  GERLACH TILL ,  KIESSLICH FRANK ,  SCHWAB EKKEHARD ,  HOFFER BRAM WILLEM

IPC: C07C209/16 ,  C07C211/10

Abstract: Processes comprising: providing a starting material comprising monoethanolamine; and reacting the starting material with ammonia in the presence of a heterogeneous transition metal catalyst to form a reaction product comprising one or more ethylene amines; wherein the catalyst comprises a catalytically active composition, which prior to treatment with hydrogen, comprises a mixture of oxygen-containing compounds of aluminum, copper, nickel and cobalt; and wherein the catalyst is present as one or more shaped catalyst particles selected from spheres, extrudates, pellets and other geometries, wherein the sphere or extrudate has a diameter of

公开(公告)号：DE502006000740D1

公开(公告)日：2008-06-19

申请号：DE502006000740

申请日：2006-07-26

Applicant: BASF SE

Inventor： JOEDECKE MICHAEL ,  LANG ORTMUND ,  CAUWENBERGE GUNTHER ,  FRAUENKRON MATTHIAS

IPC: C07D295/00

Abstract: Continuous distillative separation of piperazine from ethylenediamine-piperazine mixture comprises subjecting the piperazine mixture into a cyclic motion, introducing the piperazine mixture into an evaporator unit at 160-170[deg]C, recycling the piperazine mixture into a distillation column and removing the piperazine from the sump of the distillation column after a retention time of approximately 30-60 minutes, where the ethylene diamine is discharged at the upper portion of the distillation column.

公开(公告)号：AT448191T

公开(公告)日：2009-11-15

申请号：AT06793777

申请日：2006-09-25

Applicant: BASF SE

Inventor： CAUWENBERGE GUNTHER ,  MELDER JOHANN-PETER ,  EVERS HOLGER ,  GERLACH TILL ,  KIESSLICH FRANK ,  SCHWAB EKKEHARD ,  HOFFER BRAM WILLEM

IPC: C07C209/16 ,  C07C211/10

Abstract: Processes comprising: providing a starting material comprising monoethanolamine; and reacting the starting material with ammonia in the presence of a heterogeneous transition metal catalyst to form a reaction product comprising one or more ethylene amines; wherein the catalyst comprises a catalytically active composition, which prior to treatment with hydrogen, comprises a mixture of oxygen-containing compounds of aluminum, copper, nickel and cobalt; and wherein the catalyst is present as one or more shaped catalyst particles selected from spheres, extrudates, pellets and other geometries, wherein the sphere or extrudate has a diameter of

公开(公告)号：ES2304765T3

公开(公告)日：2008-10-16

申请号：ES06117876

申请日：2006-07-26

Applicant: BASF SE

Inventor： JODECKE MICHAEL ,  LANG ORTMUND ,  CAUWENBERGE GUNTHER ,  FRAUENKRON MATTHIAS

IPC: C07D295/00

Abstract: Procedimiento para la separación continua, por destilación, de piperazina a partir de una mezcla de etilendiamina-piperazina, bajo presión y a temperatura elevada, descargándose la etilendiamina por la cabeza y la piperazina por la cola de una columna de destilación, caracterizado porque la piperazina se somete directamente a un transporte en circuito cerrado, haciéndose pasar en este caso a través de una unidad de evaporación que se hace trabajar a una temperatura comprendida entre aproximadamente 160ºC y aproximadamente 170ºC y se recicla hasta la columna de destilación y se purga al cabo de un tiempo de residencia comprendido entre aproximadamente 30 minutos y aproximadamente 60 minutos en el transporte en circuito cerrado, en estado de vapor, a partir de una salida lateral situada en la región inferior de la columna de destilación.