公开(公告)号：SK284691B6

公开(公告)日：2005-09-08

申请号：SK31098

申请日：1998-03-06

Applicant: BASF AG

Inventor： VOIT GUIDO ,  WITZEL TOM ,  JULIUS MANFRED

IPC: C07D211/12 ,  B01J21/04 ,  B01J21/06 ,  B01J21/08 ,  B01J31/02 ,  C07B61/00 ,  C07D211/58

Abstract: Described is a process for preparing of 4-amino-2,2,6,6- tetramethylpiperidine (TAD) wherein, in the first step, 2,2,6,6-tetramethyl-4-piperidinone (TAA) is reacted with ammonia in the presence of solid acid catalysts a), which are virtually insoluble in the reaction mixture, to give the TAA imine and, in the second step, the TAA imine is hydrogenated in the presence of a hydrogenation catalyst b).

公开(公告)号：CA2280889C

公开(公告)日：2005-07-19

申请号：CA2280889

申请日：1998-01-30

Applicant: BASF AG

Inventor： LUYKEN HERMANN ,  BASSLER PETER ,  FISCHER ROLF ,  REHFINGER ALWIN ,  VOIT GUIDO

IPC: C07C209/84 ,  C07C209/86 ,  C07C211/12

Abstract: The invention relates to a method for obtaining hexamethylene diamine (I) fr om a mixture (II) containing (I) hexamethylene diamine, (III) hexamethylenimine, (IV) a compound selected from the group consisting of 2-aminomethyl cyclopentylamine and 1,2-diaminocyclohexane, (V) an imine, and (VI) adipodinitrile and 6- aminocaproic acid nitrile. According to said method, (a) a mixture (II) is subjected to distillation, yielding (a1) a low-boiling fraction whic h essentially contains (III), (a2) a medium-boiling fraction (VII) containing (I), (IV) and (V), and (a3) a high-boiling fraction containing (V ) and (VI); (b) a mixture (VII) is subjected to distillation, yielding (b1) an overhead which essentially contains (IV) and (b2) a mixture (VIII) containing (I) and (V) as bottom residue; and (c) a mixture (VIII) is subjected to distillation, yielding (c1) (I) as overhead and (c2) a bottom residue which contains the essential part of (V).

公开(公告)号：MY118922A

公开(公告)日：2005-02-28

申请号：MYPI9804366

申请日：1998-09-23

Applicant: BASF AG

Inventor： BOHNSACK ANDREAS ,  VOIT GUIDO ,  LUYKEN HERMANN ,  FLICK KLEMENS ,  MERGER MARTIN ,  BASSLER PETER ,  FISCHER ROLF

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

Abstract: ALIPHATIC ALPHA, OMEGA-AMINONITRILES ARE PREPARED IN THE PRESENCE OF A CATALYST WHICH CONTAINS(A)IRON OR A COMPOUND BASED ON IRON OR A MIXTURE THEREOF, (B)FROM 0.01 TO 5BY WEIGHT, BASED ON (a), OF A PROMOTER BASED ON 2, 3, 4, AND 5 ELEMENTS SELECTED FROM A GROUP CONSISTING OF ALUMINUM, SILICON, ZIRCONIUM, TITANIUM AND VANADIUM AND (C)FROM 0 TO 0.5BY WEIGHT, BASED ON(a), OF A COMPOUND BASED ON AN ALKALI METAL OR ALKALINE EARTH METAL, BY A PROCESS IN WHICH THE ALIPHATIC ALPHA, OMEGA-DINITRILE USED CONTAINS 2.0 PPM BY WEIGHT OF MORE OF PHOSPHORUS. CATALYSTS ARE OBTAINABLE BY THE REDUCTION AND, IF REQUIRED, SUBSEQUENT PASSIVATION OF A MAGNETITE, THE CATALYSTS HAVING A BET SURFACE AREA OF FROM 3 TO 10 M2/G, WITH A TOTAL PORE VOLUME OF FROM 0.05 TO 0.2 M1/G, AN AVERAGE PORE DIAMETER OF FROM 0.03 TO 0.1 µM AND A PORE VOLUME FRACTION OF FROM 50 TO 70IN THE RANGE OF FROM 0.01 TO 0.1 µM.

公开(公告)号：MY116969A

公开(公告)日：2004-04-30

申请号：MYPI9704195

申请日：1997-09-10

Applicant: BASF AG

Inventor： REHFINGER ALWIN ,  VOIT GUIDO ,  LUYKEN HERMANN ,  FISCHER ROLF ,  BABLER PETER

IPC: B01J27/187 ,  C07C253/34 ,  C07B61/00 ,  C07C209/48 ,  C07C209/84 ,  C07C211/12 ,  C07C253/30 ,  C07C255/24

Abstract: A PROCESS FOR COPRODUCTION OF 6-AMINOCAPRONITRILE AND HEXAMETHYLENEDIAMINE STARTING FROM ADIPONITRILE COMPRISES (1) PARTIALLY HYDROGENATING ADIPONITRILE IN THE PRESENCE OF A CATALYST TO OBTAIN A MIXTURE COMPRISING 6-AMINOCAPRONITRILE, HEXAMETHYLENEDIAMINE AND ADIPONITRILE, (2) REMOVING 6-AMINOCAPRONITRILE AND HEXAMETHYLENEDIAMINE FROM THE MIXTURE, (3) ADDING TO THE PORTION COMPRISING ESSENTIALLY ADIPONITRILE FROM 0.01 TO 10BY WEIGHT OF AN ACID, BASED ON ADIPONITRILE, OR AN ACIDIC ION EXCHANGER AND REMOVING THE ADIPONITRILE FROM THE MIXTURE, AND (4) RECYCLING THE ADIPONITRILE INTO STEP(1).

公开(公告)号：MY116967A

公开(公告)日：2004-04-30

申请号：MYPI9704170

申请日：1997-09-09

Applicant: BASF AG

Inventor： REHFINGER ALWIN ,  VOIT GUIDO ,  LUYKEN HERMANN ,  FLICK KLEMENS ,  BABLER PETER

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

Abstract: A PROCESS FOR COPRODUCTION OF 6-AMINOCAPRONITRILE AND HEXAMETHYLENEDIAMINE STARTING FROM A MIXTURE COMPRISING A PHOSPHORUS-CONTAINING COMPOUND AND ESSENTIALLY ADIPONITRILE AND OBTAINED BY REACTION OF BUTADIENE WITH HYDROCYANIC ACID IN THE PRESENCE OF A CATALYST COMPRISING A PHOSPHORUS-CONTAINING COMPOUND COMPRISES (1)REDUCING THE WEIGHT PROPORTION OF PHOSPHORUS-CONTAINING COMPOUND, CALCULATED AS PHOSPHORUS, IN THE MIXTURE, (2)PARTIALLY HYDROGENATING THE RESULTING MIXTURE IN THE PRESENCE OF A CATALYST TO FORM AN (ALPHA),( )-AMINONITRILE, AND (3)REMOVING 6-AMINOCAPRONITRILE AND HEXAMETHYLENEDIAMINE FROM THE MIXTURE.

公开(公告)号：CZ292717B6

公开(公告)日：2003-12-17

申请号：CZ324898

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: The present invention relates to a process for preparing compounds containing NHi2 groups by hydrogenating compounds having at least one unsaturated carbon-nitrogen bond with hydrogen in the presence of a catalyst at temperatures being higher thane room temperature and an elevated hydrogen partial pressure in the presence or absence of a solvent, which preparation process comprises (a) using a catalyst comprising a cobalt- and/or iron catalyst, (b) interrupting the hydrogenation when the hydrogenated compound transformation degree and/or selectivity of the required product drops below a defined limit or when the amount of undesired byproducts increases above a defined limit by stopping the feed of the compound to be hydrogenated, (c) treating the catalyst at a temperature ranging from 150 to 400 degC 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 hours, and (d) subsequently continuing the hydrogenation of the compound having at least one unsaturated carbon-nitrogen bond as well as the regeneration of cobalt- and/or iron-containing catalysts.

公开(公告)号：DE59907209D1

公开(公告)日：2003-11-06

申请号：DE59907209

申请日：1999-07-02

Applicant: BASF AG

Inventor： MERK CLAUDIA ,  BASSLER PETER ,  FISCHER ROLF ,  VOIT GUIDO ,  LUYKEN HERMANN

IPC: C07D295/02 ,  C07C209/48 ,  C07C209/82 ,  C07C209/84 ,  C07C211/12 ,  C07D295/023 ,  C25B3/25

Abstract: The level of an unsaturated cyclic imine (I) of the formula (I)where R1 is alkenyl having 3, 4, 5, 6, 7, 8, 9, 10, 11 carbon atoms belonging to the ring system, in a mixture comprising hexamethylenediamine and an imine (I) is reduced by electrochemical conversion of an imine (I) in a mixture comprising hexamethylenediamine and an imine (I) in the presence of solvated protons into a saturated cyclic amine of the formula (II)

公开(公告)号：AT251112T

公开(公告)日：2003-10-15

申请号：AT99934555

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：AT251111T

公开(公告)日：2003-10-15

申请号：AT99932786

申请日：1999-07-02

Applicant: BASF AG

Inventor： MERK CLAUDIA ,  BASSLER PETER ,  FISCHER ROLF ,  VOIT GUIDO ,  LUYKEN HERMANN

IPC: C07D295/02 ,  C07C209/48 ,  C07C209/82 ,  C07C209/84 ,  C07C211/12 ,  C07D295/023 ,  C25B3/25

Abstract: The level of an unsaturated cyclic imine (I) of the formula (I)where R1 is alkenyl having 3, 4, 5, 6, 7, 8, 9, 10, 11 carbon atoms belonging to the ring system, in a mixture comprising hexamethylenediamine and an imine (I) is reduced by electrochemical conversion of an imine (I) in a mixture comprising hexamethylenediamine and an imine (I) in the presence of solvated protons into a saturated cyclic amine of the formula (II)

公开(公告)号：ES2190648T3

公开(公告)日：2003-08-01

申请号：ES99915533

申请日：1999-02-23

Applicant: BASF AG

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

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.