公开(公告)号：DE19842905A1

公开(公告)日：2000-03-23

申请号：DE19842905

申请日：1998-09-18

Applicant: BASF AG

Inventor： MERGER MARTIN ,  FISCHER ROLF ,  ANSMANN ANDREAS

IPC: C07D223/10 ,  C07D201/02 ,  C07D201/08 ,  C07D223/04 ,  C07D295/02 ,  C07D295/023

Abstract: Simultaneous preparation of a lactam (I) and a cyclic amine (II) involves reacting an aliphatic alpha ,w-diamine (III) and an aliphatic alpha ,w-aminonitrile (IV) with water in the gas phase in the presence of a heterogeneous catalyst.

公开(公告)号：AU5622399A

公开(公告)日：2000-03-21

申请号：AU5622399

申请日：1999-08-17

Applicant: BASF AG

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

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

Abstract: A process for the coproduction of 6-aminocapronitrile and hexamethylenediamine starting from adiponitrile bya) hydrogenating adiponitrile in the presence of a catalyst comprising an element of the eighth transition group as catalytically active component, to obtain a mixture comprising 6-aminocapronitrile, hexamethylenediamine, adiponitrile and high boilers,b) distillatively removing hexamethylenediamine from the mixture comprising 6-aminocapronitrile, hexamethylenediamine, adiponitrile and high boilers, and eithercl) distillatively removing 6-aminocapronitrile, and thend1) distillatively removing adiponitrile, orc2) simultaneously distillatively removing 6-aminocapronitrile and adiponitrile into separate fractionsis characterized by base of column temperatures below 185° C. in steps d1) or c2).

公开(公告)号：CA2342178A1

公开(公告)日：2000-03-09

申请号：CA2342178

申请日：1999-08-17

Applicant: BASF AG

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

IPC: C07B61/00 ,  C07C209/48 ,  C07C209/86 ,  C07C211/12

Abstract: The invention relates to a method for the catalytic hydrogenation of adipodinitrile to hexamethylene diamine at a high temperature and at high pressure in the presence of catalysts based on elementary iron as the catalytic component, and ammonia as a solvent. The method is characterised i n that a) adipodinitrile is hydrogenated at temperatures of 70 to 220 ~C and a t pressures of 100 to 400 bar in the presence of catalysts based on elementary iron as the catalytic component, and ammonia as a solvent to produce a mixtu re containing adipodinitrile, 6-aminocapronitrile, hexamethylene diamine and hi gh boilers, until the sum of the 6-aminocapronitrile and adipodinitrile concentration is 1 to 50 wt. % in relation to the ammonia-free hydrogenation mixture; b) ammonia is separated out of the hydrogenation discharge; c) hexamethylene diamine is separated out of the remaining mixture; d) 6- aminocapronitrile and adipodinitrile are separated from the high boilers together or separately and e) 6-aminocapronitrile, adipodinitrile or their mixtures are returned to step a).

公开(公告)号：DE19839338A1

公开(公告)日：2000-03-02

申请号：DE19839338

申请日：1998-08-28

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 ,  C07C211/12 ,  C07C253/30 ,  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 d1) 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 DEG C.

公开(公告)号：AU5029799A

公开(公告)日：2000-02-07

申请号：AU5029799

申请日：1999-07-02

Applicant: BASF AG

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

IPC: C07C209/48 ,  C07C211/12

公开(公告)号：CA2505359C

公开(公告)日：2011-02-01

申请号：CA2505359

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: The invention relates to a method for purifying crude caprolactam that has been obtained by: 1) reacting a mixture (I) containing 6-aminocapronitrile and water to form a mixture (II) containing caprolactam, ammonia, water, high boilers and low boilers in the presence of a catalyst followed by; 2) removing ammonia from mixture (II) while obtaining a mixture (III) that contains caprolactam, water, high boilers and low boilers, after which; 3) water is entirely or partially removed from mixture (III) while obtaining a crude caprolactam (IV) that contains caprolactam, high boilers and low boilers. The inventive method is characterized in that: a) the crude caprolactam and an inorganic acid, which has a boiling point higher that that of caprolactam under distillation conditions in accordance with subsequent steps b) to h), are fed to a first distillation device K1; b) the crude caprolactam and the inorganic acid are distilled in the first distillation device K1 during which a first partial flow in the bottom area and a second partial flow in the top area are withdrawn from the distillation device K1; c) the second partial flow from step b) is fed to a second distillation device K2; d) the second partial flow from step b) is distilled in the second distillation device K2 during which a first partial flow in the bottom area and a second partial flow in the top area are withdrawn from the distillation device K2; e) a first partial flow from step d) is fed to a third distillation device K3; f) the first partial flow from step d) is distilled in the third distillation device K3 during which a first partial flow in the bottom area and purified caprolactam in the top area are withdrawn from the distillation device K3, and; g) the first partial flow from step f) is fed to the first distillation device K1.

公开(公告)号：CA2485077C

公开(公告)日：2010-05-18

申请号：CA2485077

申请日：2003-05-21

Applicant: BASF AG

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

IPC: C07C253/34 ,  C07C209/84 ,  C07C211/09 ,  C07C211/12 ,  C07C255/09 ,  C07C255/24

Abstract: The invention relates to a method for reducing the content of an aliphatic, monounsaturated amine (IV) in a mixture (V) containing an aminonitrile (I) or a diamine (II) or a dinitrile (III) or mixtures thereof and amine (IV), whereby: a) mixture (V) is reacted with an anionic nucleophile (VI) in a quantity ranging from 0.01 to 10 mols per mol of amine (IV) in mixture (V) at a temperature ranging from 50 to 200 ~C while obtaining mixture (VII), and; b) amino nitrile (I) or diamine (II) or dinitrile (III) or mixtures thereof are removed by distillation from mixture (VII) at a temperature ranging from 50 to 200 ~C and under a pressure ranging from 0.1 to 100 kPa while obtaining a bottom product (VIII). The inventive method is characterized in that: c) an amino nitrile (I) or diamine (II) or dinitrile (III) or mixtures thereof are removed by distillation from bottom product (VIII) at a temperature which is lower than that selected in step b).

公开(公告)号：CA2430063C

公开(公告)日：2009-04-28

申请号：CA2430063

申请日：2001-11-29

Applicant: BASF AG

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

IPC: C07C253/34 ,  C07C209/84 ,  C07C211/09 ,  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 i n 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：CA2407812C

公开(公告)日：2008-12-02

申请号：CA2407812

申请日：2001-04-30

Applicant: BASF AG

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

IPC: C07D201/08 ,  C07D223/10 ,  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：MY133822A

公开(公告)日：2007-11-30

申请号：MYPI9900792

申请日：1999-03-04

Applicant: BASF AG

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

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

Abstract: A PROCESS FOR HYDROGENATION OF ALIPHATIC ALPHA, OMEGA-DINITRILES IN THE PRESENCE OF A HETEROGENEOUS FIXED BED CATALYST COMPRISES USING A REACTION MIXTURE COMPRISING FROM 2 umOL TO 30 mmO1 Na, K, Rb, Cs, Mg, Ca, Sr, Ba OR Mn OR MIXTURES THEREOF IN THE FORM OF A BASIC SALT, BASED ON 10 MOL OF ALIPHATIC ALPHA, OMEGA-DINITRILE USED.