公开(公告)号：DE59909485D1

公开(公告)日：2004-06-17

申请号：DE59909485

申请日：1999-08-17

Applicant: BASF AG

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

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

Abstract: A process for catalytic hydrogenation of adiponitrile to hexamethylenediamine at elevated temperature and elevated pressure in the presence of catalysts based on elemental iron as catalytically active component and ammonia as solvent comprisesa) hydrogenating adiponitrile at from 70 to 220° C. and from 100 to 400 bar in the presence of catalysts based on elemental iron as catalytically active component and ammonia as solvent to obtain a mixture comprising adiponitrile,6-aminocapronitrile, hexamethylenediamine and high boilers until the sum total of the 6-aminocapronitrile concentration and the adiponitrile concentration is within the range from 1 to 50% by weight, based on the ammonia-free hydrogenation mixture,b) removing ammonia from the hydrogenation effluent,c) removing hexamethylenediamine from the remaining mixture,d) separating 6-aminocapronitrile and adiponitrile from high boilers individually or together, ande) returning 6-aminocapronitrile, adiponitrile or mixtures thereof into step a).

公开(公告)号：CA2237727C

公开(公告)日：2004-02-24

申请号：CA2237727

申请日：1996-12-11

Applicant: BASF AG

Inventor： BASSLER PETER ,  ACHHAMMER GUNTHER ,  VOIT GUIDO ,  SCHNURR WERNER ,  LUYKEN HERMANN ,  FUCHS EBERHARD ,  HILPRECHT LUTZ ,  FISCHER ROLF

IPC: C07C209/48 ,  C07C209/86 ,  C07C211/12 ,  C07D201/08 ,  C07D223/10 ,  C07C255/24 ,  C07C253/34

Abstract: A process is disclosed for simultaneously preparing caprolactam and hexamethylene diamine starting from adipodinitrile.

公开(公告)号：DE59907216D1

公开(公告)日：2003-11-06

申请号：DE59907216

申请日：1999-07-02

Applicant: BASF AG

Inventor： LUYKEN HERMANN ,  OHLBACH FRANK ,  ANSMANN ANDREAS ,  BASSLER 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

Abstract: The invention relates to a method for simultaneous production of 6-aminocapronitrile and hexamethylenediamine from adipodinitrile, comprising the following steps: a) hydrogenating adipodinitrile in the presence of a catalyst containing an element of the VIII subgroup thereby obtaining a mixture containing 6-aminocapronitrile, hexamethylenediamine, adipodinitrile and high boilers; b) distillative separation of hexamethylenediamine from the mixture containing 6-aminocapronitrile, hexamethylenediamine, adipodinitrile and high boilers or c1) distillative separating 6-aminocapronitrile and subsequently d1) distillative separation of adipodinitrile or c2) simultaneous distillative 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 DEG C. The adipodinitrile thus obtained contains less impurities than for instance 1-amino-2-cyanocyclopentenes.

公开(公告)号：AT250023T

公开(公告)日：2003-10-15

申请号：AT99956020

申请日：1999-11-19

Applicant: BASF AG

Inventor： REUTER PETER ,  VOIT GUIDO

IPC: C07C51/265 ,  C07C63/16 ,  C07D307/89

公开(公告)号：ES2184146T3

公开(公告)日：2003-04-01

申请号：ES97952875

申请日：1997-12-04

Applicant: BASF AG

Inventor： KRATZ DETLEF ,  STAMMER ACHIM ,  SCHULZ GERHARD ,  VOIT GUIDO

IPC: C07B61/00 ,  C07C29/141 ,  C07C29/80 ,  C07C31/22 ,  C07C45/75 ,  C07C47/19

Abstract: Methylolalkanal of the formula II(R=CH2OH, C1-C22-alkyl, aryl or C6-C22-aralkyl) is prepared spe-wise bya) reacting a C2-C24-aldehyde with formaldehyde in the presence of a tertiary amine,b) separating the reaction mixturei) into a bottom fraction comprising the compound of formula II and an incompletely methylolated compound of the formula IIIand a distillate stream comprising unconverted or partially converted starting materials, orii) into an aqueous phase and an organic phase, and recycling the distillate stream or the organic phase to a), andc) subjecting the bottom fraction or the aqueous phasei) to a catalytic or thermal reaction to convert the compound of formula III to the compound of formula II and to a corresponding methylene compound of formula IV(R'=H or R) andii) separating the reaction product into an overhead stream comprising the compound of formula IV and unconverted formaldehyde which is recycled to a), and a bottom fraction comprising the compound of formula II.

公开(公告)号：DE59903972D1

公开(公告)日：2003-02-13

申请号：DE59903972

申请日：1999-02-23

Applicant: BASF AG

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

IPC: 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 mumol to 30 mmol 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.

公开(公告)号：ES2175789T3

公开(公告)日：2002-11-16

申请号：ES98947530

申请日：1998-09-08

Applicant: BASF AG

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

IPC: B01J23/745 ,  C07B61/00 ,  C07C253/30 ,  B01J23/78 ,  C07C255/24 ,  C07C255/26

Abstract: The invention relates to a method for producing aliphatic alpha-omega amino nitriles in the presence of a catalyst composed of (a) iron or an iron based compound or a mixture thereof (b) 0.01 to 5 wt. %, in relation to (a), a promoter based on 2, 3, 4, or 5 elements selected from the group comprising aluminum, silicon, zirconium, titanium, and vanadium, and (C) to 0.5 wt. % in relation to (a) a compound based on an alkaline metal or alkaline-earth metal. The inventive method is characterized in that the aliphatic alpha-omega dinitrile contains 1.0 ppm or more phosphorus. Catalysts are obtainable through the reductive and optional successive passivation of magnetite, whereby the catalysts have a BET surface of 3 to 10 m2/g, a total pore volume of 0.05 to 0.2 ml/g, an average pore diameter of 0.03 to 0.1 mm and a pore volume portion in the range of 0.01 to 0.1 mm of 50 to 70%.

公开(公告)号：ES2171980T3

公开(公告)日：2002-09-16

申请号：ES97935513

申请日：1997-07-07

Applicant: BASF AG

Inventor： RITZ JOSEF ,  ACHHAMMER GUNTHER ,  FISCHER ROLF ,  FUCHS EBERHARD ,  VOIT GUIDO

IPC: C07C231/06 ,  C07C237/06 ,  C07C253/00 ,  C07C255/24 ,  C07D201/08 ,  C07D201/12 ,  C07D201/16

Abstract: A process for preparing caprolactam by cyclization of 6-aminocapronitrile in the presence of water at elevated temperature and in the presence or absence of a catalyst and a solvent, comprises a) removing from the cyclization reaction effluent ("reaction effluent I") caprolactam and all components boiling higher than caprolactam ("high boilers"), b) treating the high boilers of stage a) with phosphoric acid and/or polyphosphoric acid at from 200 to 350 DEG C. to obtain a reaction effluent II, and c) removing caprolactam formed and any 6-aminocapronitrile from reaction effluent II of stage b) to obtain separation from unconverted high boilers and acid used.

公开(公告)号：ES2169381T3

公开(公告)日：2002-07-01

申请号：ES97919014

申请日：1997-09-01

Applicant: BASF AG

Inventor： EBEL KLAUS ,  FISCHER ROLF ,  FLICK KLEMENS ,  MERGER MARTIN ,  VOIT GUIDO

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

Abstract: A process for preparing aliphatic alpha,omega-amino nitrites by partial hydrogenation of aliphatic alpha,omega-dinitriles in the presence of a catalyst, wherein the catalyst used for the partial hydrogenation comprises(a) iron or a compound based on iron or mixtures thereof and(b) from 0.01 to 5% 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(c) from 0 to 5% by weight, based on (a), of a compound based on an alkali metal or alkaline earth metal.

公开(公告)号：DE59704129D1

公开(公告)日：2001-09-13

申请号：DE59704129

申请日：1997-04-04

Applicant: BASF AG

Inventor： SCHNURR WERNER ,  VOIT GUIDO ,  FLICK KLEMENS ,  MELDER JOHANN-PETER ,  FISCHER ROLF ,  HARDER WOLFGANG

IPC: C07B61/00 ,  C07C209/48 ,  C07C211/12 ,  C07C253/30 ,  B01J25/02 ,  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).