公开(公告)号：CZ79699A3

公开(公告)日：1999-06-16

申请号：CZ79699

申请日：1997-08-28

Applicant: BASF AG

Inventor： LUYKEN HERMANN ,  REHFINGER ALWIN ,  BASSLER PETER ,  VOIT GUIDO ,  FISCHER ROLF ,  MERGER MARTIN ,  RUST HARALD

IPC: C07C209/86 ,  C07C211/12 ,  C07C211/36

Abstract: A process for separating 2-aminomethylcyclopentylamine from a mixture consisting of hexamethylenediamine and 2-aminomethylcyclopentylamine by distilling the mixture at a pressure from 1 to 300 mbar.

公开(公告)号：AU4300497A

公开(公告)日：1998-04-02

申请号：AU4300497

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：CA2304848C

公开(公告)日：2008-07-15

申请号：CA2304848

申请日：1998-09-08

Applicant: BASF AG

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

IPC: B01J23/78 ,  C07C253/30 ,  B01J23/745 ,  C07B61/00 ,  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 promotor based on 2, 3, 4, or 5 elements selected from the group comprising aluminum, silicium, zirconium, titanium and vanadium and (c) 0 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 applied aliphatic alpha, omega-amino dinitrile contains 1.0 wt. ppm or more phosphor. Catalysts are obtainable through the reduction and optional successive passivation of a 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：BRPI0405871A

公开(公告)日：2006-09-05

申请号：BRPI0405871

申请日：2004-12-28

Applicant: BASF AG

Inventor： KAIBEL GERD ,  MERGER MARTIN ,  DOMSCHKE THOMAS ,  DECKERT PETRA ,  SAUER FRIEDRICH

IPC: C07D307/62

公开(公告)号：CA2265436C

公开(公告)日：2006-03-28

申请号：CA2265436

申请日：1997-08-28

Applicant: BASF AG

Inventor： RUST HARALD ,  MERGER MARTIN ,  BASSLER PETER ,  FISCHER ROLF ,  VOIT GUIDO ,  REHFINGER ALWIN ,  LUYKEN HERMANN

IPC: C07C209/86 ,  C07C211/12 ,  C07C211/36

Abstract: Process for the separation of 2-aminomethylcyclopentylamine from a mixture containing hexamethyldiamine and 2-aminomethylcyclopentylamine, characterized by the fact that the separation is carried out by means of distillation at a pressure of 1-300 mbars.

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：DE50102724D1

公开(公告)日：2004-08-05

申请号：DE50102724

申请日：2001-11-08

Applicant: BASF AG

Inventor： ANSMANN ANDREAS ,  BENISCH CHRISTOPH ,  FUNKE FRANK ,  OHLBACH FRANK ,  MERGER MARTIN

IPC: C07D295/12 ,  C07B43/04 ,  C07B61/00 ,  C07C209/48 ,  C07C211/14 ,  C07C213/02 ,  C07C217/08 ,  C07C249/02 ,  C07C251/20

Abstract: In a process for the continuous hydrogenation of nitrites to primary amines in the liquid phase over a suspended, activated Raney catalyst based on an alloy of aluminum and at least one transition metal selected from the group consisting of iron, cobalt and nickel, and, if desired, one or more further transition metals selected from the group consisting of titanium, zirconium, chromium and manganese, the hydrogenation is carried out in the absence of ammonia and basic alkali metal compounds or alkaline earth metal compounds.

公开(公告)号：CA2510026A1

公开(公告)日：2004-07-08

申请号：CA2510026

申请日：2003-12-13

Applicant: BASF AG

Inventor： DOMSCHKE THOMAS ,  MERGER MARTIN ,  SAUER FRIEDRICH ,  DECKERT PETRA

IPC: C07H1/06 ,  C07H7/027

Abstract: The invention relates to a method for extracting 2-ketone-L-gulonic acids fr om a polar, preferably aqueous solvent, preferably from a solvent which contain s a mixture of ascorbic acid and 2-ketone-L-gulonic acid, by means of liquid- liquid extraction with the aid of an extraction agent which contains a tertiary amine and a polar organic diluent. Preferably, the inventive method also comprises steps for retro-extracting the 2-ketone-L-gulonic acid and fo r returning the extraction agent. The invention also relates to a method for producing ascorbic acid from 2-ketone-L-gulonic acid and for isolating the thus produced ascorbic acid.

公开(公告)号：DE10231890A1

公开(公告)日：2004-02-05

申请号：DE10231890

申请日：2002-07-12

Applicant: BASF AG

Inventor： KAIBEL GERD ,  MERGER MARTIN ,  DOMSCHKE THOMAS ,  DECKERT PETRA ,  SAUER FRIEDRICH

IPC: C07D307/62

Abstract: The invention relates to a method for the separation of ascorbic acid from a mixture containing ascorbic acid and 2-keto-L-gulonic acid in a polar, preferably aqueous solvent, by means of liquid/liquid extraction using an amide. The method preferably also comprises steps for the back-extraction of the ascorbic acid, recycling of the extraction solvent and/or the back extraction solvent and for isolation of the ascorbic acid from the back extraction solvent. The invention further relates to a method for the production of ascorbic acid from KGA and isolation of the ascorbic acid so produced.

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.