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：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：DE59909336D1

公开(公告)日：2004-06-03

申请号：DE59909336

申请日：1999-02-23

Applicant: BASF AG

Inventor： VOIT GUIDO ,  FISCHER ROLF ,  BASSLER 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

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 promoter 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 alkali and/or alkaline earth metal.

公开(公告)号：DE50101150D1

公开(公告)日：2004-01-22

申请号：DE50101150

申请日：2001-06-02

Applicant: BASF AG

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

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

Abstract: A process for distillative removal of ammonia from solutions (I) which include a lactam and ammonia comprises effecting said removal in a distillation apparatus (a) at an absolute pressure of less than 10 bar.

公开(公告)号：DE50003919D1

公开(公告)日：2003-11-06

申请号：DE50003919

申请日：2000-07-11

Applicant: BASF AG

Inventor： OHLBACH FRANK ,  LUYKEN HERMANN

IPC: C08G69/00 ,  C08G69/04 ,  C08G69/28 ,  C08G69/38

Abstract: A polyamide is prepared by reacting at least one dinitrile and at least one diamine with water at a temperature from 90 to 400° C. and a pressure from 0.1 to 50*10 Pa in a molar ratio of at least 1:1 for water to the sum total of dinitrile and diamine in the presence of a heterogeneous catalyst selected from the group consisting of aluminum oxide, tin oxide, silicon oxide, oxides of the second to sixth transition group of the periodic table, oxides of the lanthanides and actinides, sheet-silicates and zeolites.

公开(公告)号：AT247623T

公开(公告)日：2003-09-15

申请号：AT99908940

申请日：1999-02-23

Applicant: BASF AG

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

IPC: B01J23/78 ,  B01J23/889 ,  C07B61/00 ,  C07C209/48 ,  C07C211/12 ,  C07C253/30 ,  C07C255/24

Abstract: A material useful as catalyst for the hydrogenation of alpha, omega-dinitriles comprises (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 promoter based on 2, 3, 4 or 5 elements selected from the group consisting of aluminum, silicon, zirconium, titanium and vanadium, (c) from 0 to 0.3% by weight based on (a) of a compound based on an alkali and/or alkaline earth metal, and also (d) from 0.001 to 1% by weight based on (a) of manganese.

公开(公告)号：AR029681A1

公开(公告)日：2003-07-10

申请号：ARP010102838

申请日：2001-06-14

Applicant: BASF AG

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

IPC: C07C209/48 ,  C07C253/34 ,  C07C255/03 ,  C07C255/24 ,  C07C255/04 ,  C07C211/12 ,  C07C209/86 ,  C07C201/16

Abstract: Procedimiento para la separacion por destilacion de 6-aminoca-pronitrilo a partir de mezclas que contienen 6-aminocapronitrilo, adipodinitrilo y hexametilendiamina, a) separando la hexametilendiamina a partir de la mezcla, obteniéndose la mezcla (I) que tiene un contenido de hexametilendiamina de menos de 1% en peso. b) separando 6-aminocapronitrilo parcial o completamente de la mezcla (I), obteniéndose una mezcla (II), cuyo contenido en sustancias, que bajo condiciones de destilacion tienen un punto de ebullicion por encima de él del 6-aminocapronitrilo y que no pueden ser generados por reacciones de dimerizacion bajo esfuerzo térmico del 6-aminocapronitrilo, es menor que 1% en peso, y c) separando a partir de la mezcla (II) la hexametilendiamina parcial o completamente presente, obteniéndose una mezcla (IV) cuyo contenido de hexametilendiamina es más alto que en la mezcla (II) y una mezcla (V), cuyo contenido de hexametilendiamina es más bajo que en la mezcla (II).

公开(公告)号：AR029486A1

公开(公告)日：2003-07-02

申请号：ARP010101062

申请日：2001-03-07

Applicant: BASF AG

Inventor： LUYKEN HERMANN ,  OHLBACH FRANK

IPC: C07C209/84 ,  C07C209/86 ,  C07C211/12 ,  C07C253/34 ,  C07C255/24 ,  C07D223/04 ,  C07D223/12 ,  B01D3/00 ,  C07D201/16

Abstract: Mezclas de una amina y un derivado de azepina suelen obtenerse en la hidrogenacion de nitrilos dando aminas. La hidrogenacion completa de adipodinitrilo (ADN) en hexametilendiamina (HMD), así como la hidrogenacion parcial y obtencion simultánea de HMD y 6-aminocapronitrilo (ACN), en presencia de un catalizador a base de un metal, como p. ej. níquel, cobalto, hierro, rodio o rutenio es generalmente conocida. Como productos secundarios se forman, entre otros, derivados de azepina, tales como N-(2-azepano)-1,6-diaminohexano y N-(2-azepano)-6-aminicapronitrilo, especialmente, 2-aminoazepano y tetrahidroazepina. Estos derivados de azepina los que, debido a que colorean y perjudican las propiedades de productos, son impurificaciones indeseadas de las aminas que suelen usarse en la fabricacion de fibras plásticas, son sumamente difíciles de eliminar de las aminas. Los procedimientos conocidos de eliminacion son desventajosos en que requieren el uso de grandes recipientes, lo que resulta en que las columnas de destilacion son más difíciles de regular, en que se forman solidos, que pueden producir obstrucciones, y en que solo se alcanza una separacion insatisfactoria del derivado de azepina. Se propone, entonces, un procedimiento que permitiese separar un derivado de azepina de una mezcla que contiene una amina y un derivado de azepina de manera técnicamente sencilla y economica. Procedimiento para la separacion por destilacion de una parte o de la totalidad de un derivado de azepina (III) seleccionado del grupo que comprende tetrahidroazepina, 2-aminoazepano, N-(2-azepano)-1,6-diaminohexano y N-(2-azepano)-6-aminocapronitrilo de una mezcla (II) que contiene un derivado de azepina (III) y una amina (I) seleccionada del grupo que comprende 6-aminocapronitrilo y hexametilendiamina, procedimiento en el cual la destilacion se realiza a una temperatura de fondo de, como máximo, 150 degree C.

公开(公告)号：BR0109079A

公开(公告)日：2003-06-03

申请号：BR0109079

申请日：2001-03-06

Applicant: BASF AG

Inventor： LUYKEN HERMANN ,  OHLBACH FRANK

IPC: C07C209/84 ,  C07C209/86 ,  C07C211/12 ,  C07C253/34 ,  C07C255/24 ,  C07D223/04 ,  C07D223/12

Abstract: The invention relates to a method for separating by distillation a portion or the entirety of an azeptine derivative (III), which is selected from the group consisting of aminohexylidene imine, tetrahydroazepine, hexylhexahydroazepine and of aminohexylhexahydroazepine, out of a mixture (II) containing an azepine derivative (III) and an amine (I). The inventive method is characterized in that the distillation is carried out with a maximum bottom temperature of 150° C.

公开(公告)号：BR0110453A

公开(公告)日：2003-03-11

申请号：BR0110453

申请日：2001-04-30

Applicant: BASF AG

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

IPC: C07D223/10 ,  C07B61/00 ,  C07D201/08 ,  C07D207/263 ,  C07D211/76 ,  C07D225/02

Abstract: The invention relates to a method for producing cyclic lactams of the formula (II), wherein n and m may each represent 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 and the sum of n + m is at least 3, preferably at least 4, R and R represent C1-C6 alkyl, C5-C7 cycloalkyl or C6-C12 aryl groups, by reacting a compound of the formula (I), wherein R , R , m and n have the meaning indicated above, and R represents nitrile groups, carboxylic acid amide groups and carboxylic acid groups, with water vapor in the gaseous phase. The inventive method is further characterized in that a) the compound (I) is reacted with water vapor in the gaseous phase, adding an organic diluent (III) before or after the reaction, which diluent has a miscibility gap under certain quantitative, pressure and temperature conditions, said reaction resulting in a mixture (IV) that contains a lactam (II), b) adjusting the mixture (IV) before or after the removal of ammonia to quantitative, pressure and temperature conditions under which the diluent (III) and water are present in a liquid form and have a miscibility gap, and obtaining a two-phase system consisting of a phase (V) that has a higher proportion of diluent (III) than water, and a phase (VI) that has a higher proportion of water than diluent (III), c) separating phase (V) from phase (VI) and, d) removing from phase (V) the diluent (III) and optionally by-products selected from the group of the low-boilers, high-boilers and unreacted compound (I), and obtaining a lactam (II).