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：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).

公开(公告)号：CA2407812A1

公开(公告)日：2002-10-30

申请号：CA2407812

申请日：2001-04-30

Applicant: BASF AG

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

IPC: C07D223/10 ,  C07D201/08 ,  C07D201/16

Abstract: The invention relates to a method for producing cyclic lactams of formula (I I) by reacting a compound (I) of formula (I) with water in the presence of an organic, liquid dilution agent in the liquid phase. In formula (II), n and m respectively can have the values 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 and R1 and R2 represent C1-C6 alkyl, C5-C7 cycloalkyl or C6-C12 aryl groups. In formula (I), R1, R2, m and n are defined as above and R represents nitrile, carboxylic acid amide and carboxylic acid groups. The inventive method is characterized in that a) compound (I) is reacted with water in the liquid phase in the presence of an organic, liquid dilution agent (III) to form a mixture (IV) containing a lactam (II) and said mixture (IV) is subjected to an aqueous treatment to obtain a two-phase system.

公开(公告)号：CA2430063A1

公开(公告)日：2002-06-06

申请号：CA2430063

申请日：2001-11-29

Applicant: BASF AG

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

IPC: C07C209/84 ,  C07C211/09 ,  C07C253/34 ,  C07C255/24

Abstract: The invention relates to a method for reducing the content of an aliphatic, monounsaturated amine (III) in a mixture (IV) containing an aminonitrile (I) or a diamine (II), or mixtures thereof and an amine (III). Said method is characterised in that a) mixture (IV) is reacted with an anionic nucleophile (V) in a quantity ranging between 0.01 and 10 mol per mol of amine (III) in mixture (IV) to obtain a mixture (VI). The invention is also characterised in that b) aminonitrile (I) or diamine (II) or mixtures thereof are removed by distillation from mixture (VI), at a temperature ranging between 50 and 170 ~C and a pressure of between 0.5 and 100 kPa.

公开(公告)号：AU8759401A

公开(公告)日：2002-02-05

申请号：AU8759401

申请日：2001-07-10

Applicant: BASF AG

Inventor： BASSLER PETER ,  WINTERLING HELMUT ,  FISCHER ROLF-HARTMUTH ,  LOTH WOLFGANG

IPC: C08G69/00 ,  C08G69/04 ,  C08G69/08 ,  C08G69/16

Abstract: The continuous process for preparing a polyamide by reacting at least one aminonitrile with water comprises:(1) reacting at least one aminonitrile with water in the presence of an organic liquid diluent at from 90 to 400° C. and from 0.1 to 35x10 Pa in a flow tube containing a Brönsted acid catalyst selected from a beta-zeolite catalyst, a sheet-silicate catalyst or a titanium dioxide catalyst comprising from 70 to 100% by weight of anatase and from 0 to 30% by weight of rutile and in which up to 40% by weight of the titanium dioxide may be replaced by tungsten oxide, to obtain a reaction mixture,(2) further reacting the reaction mixture at from 150 to 400° C. and a pressure which is lower than the pressure in stage 1 in the presence of a Brönsted acid catalyst selected from a beta-zeolite catalyst, a sheet-silicate catalyst or a titanium dioxide catalyst comprising from 70 to 100% by weight of anatase and from 0 to 30% by weight of rutile and in which up to 40% by weight of the titanium dioxide may be replaced by tungsten oxide, the temperature and pressure being selected so as to obtain a first gas phase and a first liquid phase or a first solid phase or a mixture of first solid and first liquid phases and so that the first gas phase is separated from the first liquid phase or first solid phase or from the mixture of first liquid and first solid phases, and(3) admixing the first liquid or the first solid phase or the mixture of first liquid and first solid phases with a gaseous or liquid phase comprising water at from 150 to 370° C. and from 0.1 to 30x10 Pa, to obtain a product mixture.

公开(公告)号：AU6738901A

公开(公告)日：2001-11-12

申请号：AU6738901

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 ,  C07D201/08 ,  C07D201/16

Abstract: The invention relates to a method for producing cyclic lactams of formula (II) by reacting a compound (I) of formula (I) with water in the presence of an organic, liquid dilution agent in the liquid phase. In formula (II), n and m respectively can have the values 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 and R and R represent C1-C6 alkyl, C5-C7 cycloalkyl or C6-C12 aryl groups. In formula (I), R , R , m and n are defined as above and R represents nitrile, carboxylic acid amide and carboxylic acid groups. The inventive method is characterized in that a) compound (I) is reacted with water in the liquid phase in the presence of an organic, liquid dilution agent (III) to form a mixture (IV) containing a lactam (II) and said mixture (IV) is subjected to an aqueous treatment to obtain a two-phase system.

公开(公告)号：AU5482101A

公开(公告)日：2001-11-12

申请号：AU5482101

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).

公开(公告)号：AU5482001A

公开(公告)日：2001-11-12

申请号：AU5482001

申请日：2001-04-30

Applicant: BASF AG

Inventor： BASSLER PETER ,  BAUMANN DIETER ,  FISCHER ROLF-HARTMUTH ,  FUCHS EBERHARD ,  MELDER JOHANN-PETER ,  OHLBACH FRANK

IPC: C07D223/12 ,  C07D201/08

Abstract: A process for the preparation of caprolactam is provided, whereina) a mixture (I) containing 6-aminocapronitrile and water is reacted in the gas phase, in the presence of a catalyst, to give a mixture (II) containing caprolactam, ammonia, water, high-boiling components and low-boiling components,b) ammonia is then removed from the mixture (II) to give a mixture (III) containing caprolactam, water, high-boiling components and low-boiling components,c) water is then removed from the mixture (III) to give a mixture (IV) containing caprolactam, high-boiling components and low-boiling components, andd) a solid (V) containing caprolactam is then obtained from the mixture (IV) by crystallization, the proportion by weight of caprolactam in the solid (V) being greater than in the mixture (IV).

公开(公告)号：TR199802028T2

公开(公告)日：2000-09-21

申请号：TR9802028

申请日：1997-04-03

Applicant: BASF AG

Inventor： SCHNURR WERNER ,  VOIT GUIDO ,  FLICK KLEMENS ,  FISCHER ROLF-HARTMUTH

IPC: B01J23/78 ,  B01J23/94 ,  B01J27/187 ,  B01J27/28 ,  B01J38/10 ,  C07B61/00 ,  C07C209/48 ,  C07C211/12 ,  C07C253/30 ,  C07C255/24

Abstract: A process for the coproduction of 6-aminocapronitrile (ACN) and hexamethylenediamine (HMD) by treatment of adiponitrile (ADN) with hydrogen in the presence of a nickel-containing catalyst at temperatures not below room temperature and elevated hydrogen partial pressure in the presence or absence of a solvent comprises, after the conversion based on ADN and/or the selectivity based on ACN has or have dropped below a defined value (a) interrupting the treatment of ADN with hydrogen by stopping the feed of ADN and of the solvent, if used, (b) treating the catalyst at from 150 DEG to 400 DEG C. with hydrogen using a hydrogen pressure within the range from 0.1 to 30 MPa and a treatment time within the range from 2 to 48 h, and (c) then continuing the hydrogenation of ADN with the treated catalyst of stage (b).

公开(公告)号：CA2250734A1

公开(公告)日：1997-10-16

申请号：CA2250734

申请日：1997-04-03

Applicant: BASF AG

Inventor： FISCHER ROLF-HARTMUTH ,  VOIT GUIDO ,  FLICK KLEMENS ,  SCHNURR WERNER

IPC: B01J23/78 ,  B01J23/94 ,  B01J27/187 ,  B01J27/28 ,  B01J38/10 ,  C07B61/00 ,  C07C209/48 ,  C07C211/12 ,  C07C253/30 ,  C07C255/24 ,  C07C211/09

Abstract: The invention concerns a method of producing compounds containing NH2 groups by the hydrogenation of compounds which include at least one carbon-nitrogen bond with hydrogen in the presence of a catalyst, at a temperature not below room temperature and at an elevated hydrogen partial pressure, optionally in the presence of a solvent. The hydrogenation is carried out under the following conditions: a) a catalyst containing cobalt and/or iron is used, b) if the yield, based on the compound being hydrogenated, and/or the selectivity, based on the desired product, drops below a defined value or if the amount of an undesired side-product increases to more than a defined value, the hydrogenation is interrupted by stopping the feed of the compound being hydrogenated and, if present, also the solvent, c) the catalyst is treated with hydrogen at a temperature in the range 150 to 400 ~C, using a hydrogen pressure of 0.1 to 30 MPa and a treatment time of 2 to 48 h and d) the hydrogenation is subsequently continued, and the catalysts containing cobalt and/or iron are regenerated.