公开(公告)号：CA2337858A1

公开(公告)日：2000-02-03

申请号：CA2337858

申请日：1999-07-02

Applicant: BASF AG

Inventor： VOIT GUIDO ,  ACHHAMMER GUNTHER ,  MERGER MARTIN ,  REHFINGER ALWIN ,  MELDER JOHANN-PETER ,  FISCHER ROLF ,  OHLBACH FRANK ,  LUYKEN HERMANN ,  ANSMANN ANDREAS ,  BASSLER PETER

IPC: C07B61/00 ,  C07C209/48 ,  C07C209/84 ,  C07C209/86 ,  C07C211/12 ,  C07C253/30 ,  C07C253/34 ,  C07C255/24

Abstract: The invention relates to a method for simultaneous production of 6- aminocapronitrile and hexamethylenediamine from adipodinitrile, comprising t he following steps: a) hydrogenating adipodinitrile in the presence of a cataly st containing an element of the VIII subgroup thereby obtaining a mixture containing 6-aminocapronitrile, hexamethylenediamine, adipodinitrile and hig h boilers; b) distillative separation of hexamethylenediamine from the mixture containing 6-aminocapronitrile, hexamethylenediamine, adipodinitrile and hig h boilers or c1) distillative separating 6-aminocapronitrile and subsequently d1) distillative separation of adipodinitrile or c2) simultaneous distillati ve separation of 6-aminocapronitrile and adipodinitrile into separate fractions . The invention is characterized in that temperatures in the bottoms of the column in steps d1) or c2) are under 185 ~C. The adipodinitrile thus obtaine d contains less impurities than for instance 1-amino-2-cyanocyclopentenes.

公开(公告)号：DE19832529A1

公开(公告)日：2000-01-27

申请号：DE19832529

申请日：1998-07-20

Applicant: BASF AG

Inventor： LUYKEN HERMANN ,  OHLBACH FRANK ,  ANSMANN ANDREAS ,  BASLER PETER ,  FISCHER ROLF ,  MELDER JOHANN-PETER ,  MERGER MARTIN ,  REHFINGER ALWIN ,  VOIT GUIDO ,  ACHHAMMER GUENTHER

IPC: C07B61/00 ,  C07C209/48 ,  C07C209/84 ,  C07C209/86 ,  C07C211/12 ,  C07C253/30 ,  C07C253/34 ,  C07C255/24 ,  C07C209/82

Abstract: A process for the simultaneous production of 6-amino-capronitrile (ACN) and hexamethylenediamine (HDA) by hydrogenation of adiponitrile (ADN) in which, after separation of HDA by distillation, the ACN and ADN are separated in succession or simultaneously (in separate fractions) with a bottom temperature below 185 deg C. A process for the simultaneous production of ACN and HDA from ADN comprises (a) hydrogenation of ADN in presence of a catalyst based on a Subgroup VIII element to give a mixture containing ACN, HDA, ADN and high-boiling products, (b) separation of HDA from the mixture by distillation, (c1) separation of ACN by distillation and then (d1) separation of ADN by distillation or (c2) simultaneous separation of ACN and ADN in separate fractions. Distillation stage (d1) or (c2) is carried out with a bottom temperature below 185 deg C.

公开(公告)号：CA2323616A1

公开(公告)日：1999-09-23

申请号：CA2323616

申请日：1999-03-08

Applicant: BASF AG

Inventor： ANSMANN ANDREAS ,  FLICK KLEMENS ,  EIERMANN MATTHIAS

IPC: C07D201/08 ,  B01J27/18 ,  C07D213/61 ,  C07D277/32

Abstract: The invention relates to a method for producing lactams by cyclization hydrolysis of aminonitriles in the has phase in the presence of a metal phosphate catalyst. One or more oligophosphates of general formula (I) M(POa)b, wherein M represents a metal group from 3 or 4 of the periodic table including the lanthanides, a2.5 and 4.0 and b is chosen to neutralise the charges, or a mixture of one or more oligophosphates of general formula (I) with one or more other salts of a metal from group 3 or 4 of the periodic table including the lanthanides and an inorganic acid is/are used as the catalyst. The invention also relates to the production of these catalysts.

公开(公告)号：CA2322530A1

公开(公告)日：1999-09-10

申请号：CA2322530

申请日：1999-02-23

Applicant: BASF AG

Inventor： MERGER MARTIN ,  REHFINGER ALWIN ,  FISCHER ROLF HARTMUTH ,  BASSLER PETER ,  ANSMANN ANDREAS ,  OHLBACH FRANK ,  VOIT GUIDO ,  LUYKEN HERMANN

IPC: B01J23/02 ,  B01J23/78 ,  C07B61/00 ,  C07C209/00 ,  C07C209/48 ,  C07C211/09 ,  C07C211/12 ,  C07C253/30 ,  C07C255/24

Abstract: The invention relates to a method for hydrogenating aliphatic alpha-, omegadinitriles in the presence of a heterogeneous fixed-bed catalyst. The method is characterised in that the reaction mixture contains 2 .mu.mol to 30 mmol Na, K, Rb, Cs, Mg, Ca, Sr, Ba or Mn or mixtures thereof in the form of a basic salt, in relation to 10 mol of the aliphatic alpha-, omega-dinitrile used.

公开(公告)号：DE19809688A1

公开(公告)日：1999-09-09

申请号：DE19809688

申请日：1998-03-06

Applicant: BASF AG

Inventor： VOIT GUIDO ,  FISCHER ROLF HARTMUTH ,  BASLER PETER ,  ANSMANN ANDREAS ,  LUYKEN HERMANN ,  MERGER MARTIN ,  OHLBACH FRANK ,  REHFINGER ALWIN

IPC: B01J23/78 ,  B01J23/745 ,  C07B61/00 ,  C07C209/48 ,  C07C211/09 ,  C07C211/12 ,  C07C253/30 ,  C07C255/24 ,  C07C255/04 ,  C07C253/10

Abstract: The invention relates to a method for producing aliphatic alpha-, omega-diamines by hydrogenating aliphatic alpha-, omega-dinitriles in the presence of a catalyst, characterised in that the catalyst used for the hydrogenation contains a) iron or a compound based on iron or mixtures thereof, b) 0.001 to 0.3 wt. % in relation to a) of a promoter based on 2, 3, 4 or 5 elements from the following group: aluminium, silicon, zirconium, titanium and vanadium and c) 0 to 0.3 wt. % in relation to a) of a compound based on an alkaline and/or alkaline earth metal.

公开(公告)号：CA2342177C

公开(公告)日：2008-12-23

申请号：CA2342177

申请日：1999-08-17

Applicant: BASF AG

Inventor： BASSLER PETER ,  LUYKEN HERMANN ,  OHLBACH FRANK ,  ACHHAMMER GUNTHER ,  MELDER JOHANN-PETER ,  VOIT GUIDO ,  FISCHER ROLF ,  REHFINGER ALWIN ,  MERGER MARTIN ,  ANSMANN ANDREAS

IPC: C07C253/30 ,  C07B61/00 ,  C07C209/48 ,  C07C209/84 ,  C07C211/12 ,  C07C253/34 ,  C07C255/24

Abstract: The invention relates to a method for simultaneous preparation of 6- aminocapronitrile and hexamethylene diamine from adipodinitrile, comprising the following steps: a) hydrogenating adipodinitrile in the presence of a catalyst containing an element of the eight subgroup as catalytically active component to obtain a mixture containing 6- aminocapronitrile, hexamethylene diamine, adipodinitrile and high boilers; b) separating by distillation hexamethylene diamine from the mixture containing 6-aminocapronitrile, hexamethylene diamine, adipodinitrile and high boilers and c1) separating by distillation 6-aminocapronitrile and subsequently dl) separating by distillation adipodinitrile or c2) simultaneously separating by distillation 6-aminocapronitrile and adipodinitrile into separate fractions. The method is characterized in that the temperature of the bottom in steps d1) or c2) is below 185 .degree. C.

公开(公告)号：CA2409344C

公开(公告)日：2007-11-27

申请号：CA2409344

申请日：2001-06-02

Applicant: BASF AG

Inventor： OHLBACH FRANK ,  LUYKEN HERMANN ,  MAIXNER STEFAN ,  FISCHER ROLF-HARTMUTH ,  MELDER JOHANN-PETER ,  BASSLER PETER ,  ANSMANN ANDREAS

IPC: C07D201/16 ,  C07D223/10 ,  B01D3/00 ,  C01C1/10 ,  C07D201/08

Abstract: The invention relates to a method for separating ammonia from solutions (I) containing lactam and ammonia by distillation. The method is characterized i n that the separation takes place in a distillation device (a) at an absolute pressure of less than 10 bar.

公开(公告)号：ES2262003T3

公开(公告)日：2006-11-16

申请号：ES03789024

申请日：2003-11-11

Applicant: BASF AG

Inventor： LUYKEN HERMANN ,  ANSMANN ANDREAS ,  BENISCH CHRISTOPH ,  BASSLER PETER ,  FISCHER ROLF-HARTMUTH ,  MAIXNER STEFAN

IPC: C07D201/16 ,  C07D201/08

Abstract: Procedimiento para la purificación de caprolactama cruda que se obtuvo 1) transformándose una mezcla (I) que contiene 6- aminocapronitrilo y agua en una mezcla (II) que contiene caprolactama, amoníaco, agua, productos de punto de ebullición elevado y productos de bajo punto de ebullición, en presencia de un catalizador, a continuación 2) eliminándose de la mezcla (II) amoníaco bajo obtención de una mezcla (III) que contiene caprolactama, agua, productos de punto de ebullición elevado y productos de bajo punto de ebullición, a continuación 3) eliminándose de la mezcla (III) agua completa o parcialmente bajo obtención de una caprolactama cruda (IV) que contiene caprolactama, productos de punto de ebullición elevado y productos de bajo punto de ebullición, caracterizado porque a)la caprolactama cruda y un ácido inorgánico, que presenta un punto de ebullición por encima del punto de ebullición de caprolactama bajo las condiciones de destilación según los siguientes pasos b) a h), se alimentan aun dispositivo de destilación K1, b) en el primer dispositivo de destilación K1 se destila la caprolactama cruda y el ácido inorgánico, extrayéndose el dispositivo de destilación K1 de una primera corriente parcial en la zona de la cola, y una segunda corriente parcial en la zona de la cabeza, c) alimentándose la segunda corriente parcial del paso b) a un segundo dispositivo de destilación K2, d) destilándose en el segundo dispositivo de destilación K2 la segunda corriente parcial del paso b), extrayéndose del dispositivo de destilación K2 una primera corriente parcial en la zona de la cola y una segunda corriente parcial en la zona de la cabeza, e)alimentándose la primera corriente parcial del paso d) a un tercer dispositivo de destilación K3, f) destilándose en el tercer dispositivo de destilación K3 la primera corriente parcial del paso d), extrayéndose del dispositivo de destilación K3 una primera corriente parcial en la zona de la cola y caprolactama purificada en la zona de la cabeza, y g) alimentándose la primera corriente parcial del paso f) al primer dispositivo de destilación K1.

公开(公告)号：MY124248A

公开(公告)日：2006-06-30

申请号：MYPI9900816

申请日：1999-03-05

Applicant: BASF AG

Inventor： VOIT GUIDO ,  FISCHER ROLF ,  BASSLER PETER ,  ANSMANN ANDREAS ,  LUYKEN HERMANN ,  MERGER MARTIN ,  OHLBACH FRANK ,  ALWIN REHFINGER DR

IPC: B01J23/78 ,  C07C209/00 ,  B01J23/745 ,  C07B61/00 ,  C07C209/48 ,  C07C211/09 ,  C07C211/12 ,  C07C253/30 ,  C07C255/24

Abstract: A PROCESS FOR PREPARING ALIPHATIC ALPHA, OMEGA-DIAMINES BY HYDROGENATION OF ALIPHATIC ALPHA, OMEGA-DINITRILES IN THE PRESENCE OF A CATALYST COMPRISES USING A HYDROGENATION CATALYST COMPRISING (A) IRON OR A COMPOUND BASED ON IRON OR MIXTURES THEREOF, (B) FROM 0.001 TO 0.3% BY WEIGHT BASED ON (A) OF A PROMOTOR BASED ON 2,3,4 OR 5 ELEMENTS SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, SILICON, ZIRCONIUM, TITANIUM AND VANADIUM, AND ALSO(C) FROM 0 TO 0.3% BY WEIGHT BASED ON (A) OF A COMPOUND BASED ON AN ALKAKI AND/OR ALKALINE EARTH METAL.

公开(公告)号：DE50302921D1

公开(公告)日：2006-05-18

申请号：DE50302921

申请日：2003-11-11

Applicant: BASF AG

Inventor： LUYKEN HERMANN ,  ANSMANN ANDREAS ,  BENISCH CHRISTOPH ,  BASSLER PETER ,  FISCHER ROLF-HARTMUTH ,  MAIXNER STEFAN ,  MELDER JOHANN-PETER

IPC: C07D201/16 ,  C07D201/08

Abstract: A process for the purification of crude caprolactam, prepared by reaction of a mixture comprising 6-aminocapronitrile and water, comprises a three stage distillation process with feeding of the crude caprolactam and an inorganic acid having a b. pt. above the b. pt. of the caprolactam to a first distillation column. A process for the purification of crude caprolactam, prepared by reaction of a mixture comprising 6-aminocapronitrile and water in the presence of a catalyst to form a mixture comprising caprolactam, ammonia, water and high and low b. pt. byproducts followed by removal of ammonia to yield a mixture of caprolactam, water and high and low b. pt. byproducts followed by at least partial removal of water to yield a crude caprolactam containing caprolactam and high and low b. pt. byproducts, comprises: (a) feeding of the crude caprolactam and an inorganic acid having a b. pt. above the b. pt. of the caprolactam to a first distillation column; (b) distillation of the crude caprolactam and inorganic acid to form a sump stream and an overhead stream; (c) feeding of the overhead stream to a second distillation column; (d) distillation of the stream to form a sump stream and overhead stream; (e) feeding of the overhead stream to a third distillation column; (f) distillation of the overhead stream to form a sump stream and purified caprolactam in the overhead stream; and (g) feeding of the sump stream to the first distillation column.