公开(公告)号：DE50301577D1

公开(公告)日：2005-12-08

申请号：DE50301577

申请日：2003-07-07

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：AU2003290036A1

公开(公告)日：2004-07-14

申请号：AU2003290036

申请日：2003-12-13

Applicant: BASF AG

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

IPC: C07H1/06 ,  C07H7/027

公开(公告)号：DE59909336D1

公开(公告)日：2004-06-03

申请号：DE59909336

申请日：1999-02-23

Applicant: BASF AG

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

IPC: B01J23/78 ,  B01J23/745 ,  C07B61/00 ,  C07C209/48 ,  C07C211/09 ,  C07C211/12 ,  C07C253/30 ,  C07C255/24

Abstract: A process for preparing aliphatic alpha, omega-diamines by hydrogenation of aliphatic alpha, omega-dinitriles in the presence of a catalyst comprises using a hydrogenation catalyst comprising(a) iron or a compound based on iron or mixtures thereof,(b) from 0.001 to 0.3% 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 also(c) from 0 to 0.3% by weight based on (a) of a compound based on an alkali and/or alkaline earth metal.

公开(公告)号：ES2207184T3

公开(公告)日：2004-05-16

申请号：ES99908940

申请日：1999-02-23

Applicant: BASF AG

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

IPC: B01J23/78 ,  B01J23/889 ,  C07B61/00 ,  C07C209/48 ,  C07C211/12 ,  C07C253/30 ,  C07C255/24

Abstract: A material useful as catalyst for the hydrogenation of alpha, omega-dinitriles comprises (a) iron or a compound based on iron or mixtures thereof, (b) from 0.001 to 0.3% 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, (c) from 0 to 0.3% by weight based on (a) of a compound based on an alkali and/or alkaline earth metal, and also (d) from 0.001 to 1% by weight based on (a) of manganese.

公开(公告)号：MY116968A

公开(公告)日：2004-04-30

申请号：MYPI9704194

申请日：1997-09-10

Applicant: BASF AG

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

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

Abstract: A PROCESS FOR PREPARAING ALIPHATIC ALPHA, OMEGA-AMINO NITRILES 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 5BY 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 5BY WEIGHT, BASED ON (A), OF A COMPOUND BASED ON AN ALKALI METAL OR ALKALINE EARTH METAL.

公开(公告)号：CA2492155A1

公开(公告)日：2004-01-22

申请号：CA2492155

申请日：2003-07-07

Applicant: BASF AG

Inventor： KAIBEL GERD ,  DECKERT PETRA ,  DOMSCHKE THOMAS ,  MERGER MARTIN ,  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：AT247623T

公开(公告)日：2003-09-15

申请号：AT99908940

申请日：1999-02-23

Applicant: BASF AG

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

IPC: B01J23/78 ,  B01J23/889 ,  C07B61/00 ,  C07C209/48 ,  C07C211/12 ,  C07C253/30 ,  C07C255/24

Abstract: A material useful as catalyst for the hydrogenation of alpha, omega-dinitriles comprises (a) iron or a compound based on iron or mixtures thereof, (b) from 0.001 to 0.3% 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, (c) from 0 to 0.3% by weight based on (a) of a compound based on an alkali and/or alkaline earth metal, and also (d) from 0.001 to 1% by weight based on (a) of manganese.

公开(公告)号：DE59710180D1

公开(公告)日：2003-07-03

申请号：DE59710180

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：DE59902062D1

公开(公告)日：2002-08-22

申请号：DE59902062

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 ,  VOIT GUIDO ,  ACHHAMMER GUENTHER

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：DE10121028A1

公开(公告)日：2002-01-31

申请号：DE10121028

申请日：2001-04-28

Applicant: BASF AG

Inventor： MERGER MARTIN ,  SCHWAB EKKEHARD ,  WULFF-DOERING JOACHIM ,  MUHLER MARTIN ,  HAGEN VOLKER ,  GERLACH TILL

IPC: B01J23/10 ,  C07B61/00 ,  C07C45/41 ,  C07C47/02 ,  C07C47/42 ,  C07B41/06 ,  C07C47/32 ,  C07C221/00 ,  C07C223/00

Abstract: Manufacture of an aldehyde (I) involves gaseous phase reaction of carboxylic acid or its ester (II) with hydrogen in presence of a lanthanum trioxide catalyst. Manufacture of an aldehyde of formula (I) involves gaseous phase reaction of carboxylic acid or its ester of formula (II) with hydrogen in presence of a lanthanum trioxide catalyst. R , R , R = 1-6C alkyl, 3-8C cycloalkyl, aryl, 7-12C alkylphenyl or phenylalkyl; (R and R ) = 3-7 membered alicyclic ring; R , R = 1-4C alkoxy, phenoxy, methylamino, dimethylamino or halogen; R = hydroxy or amino; and R = H, 1-6C alkyl, 3-8C cycloalkyl, aryl, 7-12C alkylphenyl or phenylalkyl.