公开(公告)号：CA2297724C

公开(公告)日：2007-10-09

申请号：CA2297724

申请日：1998-10-16

Applicant: BASF AG

Inventor： STEIN FRANK ,  PINKOS ROLF ,  FISCHER ROLF HARTMUTH

IPC: C07C29/149 ,  C07B61/00 ,  C07C29/80 ,  C07C31/20 ,  C07C51/367 ,  C07C62/02 ,  C07C67/31 ,  C07C69/675

Abstract: The invention relates to a method for producing 1,6-hexanediol and 6- hydroxycaproic acid or their esters by the catalytic hydrogenation of adipic acid, adipic acid monoesters or adipic acid diesters or educt flow s containing adipic acid or its esters as essential constituents. The bottom product obtained when the hydrogenation discharge is distilled after the hexanediol and the hydroxycaproic acid or its esters have been separated off is reintroduced into the hydrogenation process, said bottom product essentially containing oligomeric esters of the 6-hydroxycaproic acid. The resulting mixture of the educt and the return flo w is reacted at temperatures of 100 to 300 .degree.C and at pressures of 10 to 300 bar in the liquid phase and with a molar ratio of carboxyl grou ps to be hydrogenated to hydrogen in the reactor of 1:5 to 1:100, on hydrogenating catalysts.

公开(公告)号：ES2261635T3

公开(公告)日：2006-11-16

申请号：ES02708262

申请日：2002-01-08

Applicant: BASF AG

Inventor： GALL MARTIN ,  KAIBEL GERD ,  KRUG THOMAS ,  RUST HARALD ,  STEIN FRANK

IPC: C07D309/30 ,  B01D3/14 ,  C07C29/80 ,  C07C31/20 ,  C07D315/00

Abstract: Procedimiento para la elaboración por destilación de productos crudos obtenidos en el procedimiento según la DE-A 196 07 954, que contienen 1, 6- hexanodiol (HDO), 1, 5-pentanodiol (PDO), o bien caprolactona (CLO), para la obtención de los correspondientes productos puros, caracterizado porque la elaboración por destilación se lleva a cabo respectivamente en una columna de pared separadora (TK), en la que está dispuesta una pared separadora (T) en el sentido longitudinal de la columna bajo formación de una zona de columna superior común (1), una zona de columna inferior común (6), una parte de alimentación (2, 4) con parte de enriquecimiento (2), y parte de descarga (4), así como una parte de extracción (3, 5) con parte de descarga (3) y parte de enriquecimiento (5), con alimentación del respectivo producto crudo HDO, PLO, o bien CLO en la zona media de la parte de alimentación (2, 4), descarga de una fracción de punto de ebullición elevado (C) a partir de la cola de la columna, una fracción de bajo punto de ebullición (A) por encima de la cabeza de la columna y una fracción de punto de ebullición medio (B) de la zona media de la parte de extracción (3, 5), o en columnas acopladas térmicamente.

公开(公告)号：CA2247991C

公开(公告)日：2006-06-27

申请号：CA2247991

申请日：1997-02-28

Applicant: BASF AG

Inventor： BREITSCHEIDEL BORIS ,  FISCHER ROLF ,  PINKOS ROLF ,  RUST HARALD ,  STEIN FRANK ,  BAUR KARL GERHARD

IPC: C07C31/20 ,  C07C29/149

Abstract: The invention relates to a process for the preparation of 1,6 hexane diol fr om a carboxylic acid mixture containing adipic acid, 6-hydroxy caproic acid and, in small quantities, 1,4 cyclohexane diols. Said mixture is obtained as a by-product of the oxidation of cyclohexane into cyclohexanone/ cyclohexanol by water extraction of the reaction mixture. Said process involves esterification of the acids and hydrogenation. According to this process (a) the monocarboxylic acids an d the dicarboxylic acids contained in the aqueous dicarboxylic acid mixture are reacted with a low-molecular alcohol to form the corresponding carboxylic acid esters; (b) the excess alcohol and low-boiling agents of the resultant esterification mixture are released in a first distillation stage; (c) separating into an ester fraction substantially free of 1,4 cyclohexane diols and a fraction containing at least the greater part of the 1,4 cyclohexane diols is carried out from the bottom product in a second distillation stage; (d) the ester fraction substantially free of 1,4 cyclohexane diols is catalytically hydrogenated; and (e) in a pure distillation stage 1,6 hexane diol is extracted from the hydrogenated discharge in a known manner.

公开(公告)号：DE50203418D1

公开(公告)日：2005-07-21

申请号：DE50203418

申请日：2002-06-18

Applicant: BASF AG

Inventor： FISCHER ROLF-HARTMUTH ,  PINKOS ROLF ,  ROESCH MARKUS ,  STEIN FRANK

IPC: C07D201/08 ,  C07D207/26 ,  C07D207/267

Abstract: In a process for preparing pyrrolidone, which may be N-substituted, substrates selected from among C4-dicarboxylic acids and their derivatives are hydrogenated in the gas phase under anhydrous conditions with or without addition of ammonia or primary amines and using a Cr-free catalyst which comprises from 5 to 95% by weight of CuO, preferably from 30 to 70% by weight of CuO, and from 5 to 95% by weight of Al2O3, preferably from 30 to 70% by weight of Al2O3, and from 0 to 60% by weight, preferably from 5 to 40% by weight, of ZnO.

公开(公告)号：AT297893T

公开(公告)日：2005-07-15

申请号：AT02754703

申请日：2002-06-18

Applicant: BASF AG

Inventor： FISCHER ROLF-HARTMUTH ,  PINKOS ROLF ,  ROESCH MARKUS ,  STEIN FRANK

IPC: C07D201/08 ,  C07D207/26 ,  C07D207/267

Abstract: In a process for preparing pyrrolidone, which may be N-substituted, substrates selected from among C4-dicarboxylic acids and their derivatives are hydrogenated in the gas phase under anhydrous conditions with or without addition of ammonia or primary amines and using a Cr-free catalyst which comprises from 5 to 95% by weight of CuO, preferably from 30 to 70% by weight of CuO, and from 5 to 95% by weight of Al2O3, preferably from 30 to 70% by weight of Al2O3, and from 0 to 60% by weight, preferably from 5 to 40% by weight, of ZnO.

公开(公告)号：MY119399A

公开(公告)日：2005-05-31

申请号：MYPI9705744

申请日：1997-11-28

Applicant: BASF AG

Inventor： SIGWART CHRISTOPH ,  STEIN FRANK ,  ELLER KARSTEN ,  PLITZKO KLAUS-DIETER ,  HESSE MICHAEL ,  BECKER RAINER ,  FISCHER ROLF ,  MULLER ULRICH

IPC: C07C67/24 ,  B01J23/24 ,  C07C43/20 ,  C08G65/10 ,  C08G65/20 ,  C08G65/26 ,  C08G65/28

Abstract: POLYTETRAHYDROFURAN, TETRAHYDROFURAN COPOLYMERS, DIESTERS OR MONOESTERS OF THESE POLYMERS ARE PREPARED BY THE POLYMERIZATION OF TETRAHYDROFURAN IN THE PRESENCE OF AT LEAST ONE TELOGEN AND/OR COMONOMER OVER A HETEROGENEOUS SUPPORTED CATALYST WHICH CONTAINS AN ACTIVE COMPONENT COMPRISING A CATALYTICALLY ACTIVE AMOUNT OF AT LEAST ONE OXYGEN-CONTAINING TUNGSTEN AND/OR MOLYBDENUM COMPOUND AN OXIDIC SUPPORT MATERIAL AND WHICH, FOLLOWING APPLICATION OF THE PRECURSOR COMPOUNDS OF THE ACTIVE COMPONENT TO THE SUPPORT MATERIAL PRECURSOR, HAS BEEN CALCINED AT TEMPERATURES OF 500°C TO 1000°C,WHERE A CATALYST IS USED WHICH CONTAINS A PROMOTOR WHICH COMPRISES AT LEAST ONE ELEMENT OR A COMPOUND OF AN ELEMENT OF GROUP 2, 3 (INCLUDING THE LANTHANIDES) 5, 6, 7, 8, OR 14 OF THE PERIODIC TABLE.

公开(公告)号：ES2223933T3

公开(公告)日：2005-03-01

申请号：ES01984809

申请日：2001-12-07

Applicant: BASF AG

Inventor： BORCHERT HOLGER ,  SCHLITTER STEPHAN ,  FISCHER ROLF-HARTMUTH ,  ROSCH MARKUS ,  STEIN FRANK ,  RAHN RALF-THOMAS

IPC: C07B61/00 ,  C07D307/08 ,  C07D307/33

Abstract: Procedimiento de hidrogenado en fase gaseosa de ácidos dicarboxílicos con 4 átomos de carbono y/o sus derivados para dar -butirolactona, en caso dado substituida y/o tetrahidrofurano, en un catalizador a base de óxido de Cu, que comprende una primera zona de reacción, en la que se hace reaccionar el ácido dicarboxílico con 4 átomos de carbono, o sus derivados, para dar una mezcla que contiene como producto principal -butirolactona, en caso dado substituida, y una segunda zona de reacción subsiguiente, en la que se hace reaccionar la -butirolactona que se encuentra en la mezcla de la primera etapa de hidrogenado, en caso dado substituida, a una temperatura que es más reducida que la temperatura en la primera etapa de hidrogenado, para dar tetrahidrofurano, en caso dado substituido.

公开(公告)号：DE50103810D1

公开(公告)日：2004-10-28

申请号：DE50103810

申请日：2001-12-07

Applicant: BASF AG

Inventor： FISCHER ROLF-HARTMUTH ,  STEIN FRANK ,  PINKOS ROLF ,  HESSE MICHAEL ,  SPRAGUE JOLYON ,  ROESCH MARKUS ,  BORCHERT HOLGER ,  SCHLITTER STEPHAN ,  RAHN RALF-THOMAS ,  WECK ALEXANDER

IPC: B01J23/72 ,  B01J23/80 ,  C07C27/06 ,  C07D307/08

Abstract: Unsubstituted or alkyl-substituted THF is obtained by catalytic hydrogenation in the gas phase of C4-dicarboxylic acids and/or their derivatives using a catalyst comprising 20% by weight, preferably >30% by weight, in particular from 35 to 90% by weight, of an oxidic support having acid centers, at a hot spot temperature of from 240 to 310° C., preferably from 240 to 280° C., and a WHSV over the catalyst of from 0.01 to 1.0, preferably from 0.02 to 1, in particular from 0.05 to 0.5, kg of starting material/l of catalystxhour.

公开(公告)号：AT276986T

公开(公告)日：2004-10-15

申请号：AT01985854

申请日：2001-12-07

Applicant: BASF AG

Inventor： FISCHER ROLF-HARTMUTH ,  STEIN FRANK ,  PINKOS ROLF ,  HESSE MICHAEL ,  SPRAGUE MICHAEL JOLYON ,  ROESCH MARKUS ,  BORCHERT HOLGER ,  SCHLITTER STEPHAN ,  RAHN RALF-THOMAS ,  WECK ALEXANDER

IPC: B01J23/72 ,  B01J23/80 ,  C07C27/06 ,  C07D307/08

Abstract: Unsubstituted or alkyl-substituted THF is obtained by catalytic hydrogenation in the gas phase of C4-dicarboxylic acids and/or their derivatives using a catalyst comprising 20% by weight, preferably >30% by weight, in particular from 35 to 90% by weight, of an oxidic support having acid centers, at a hot spot temperature of from 240 to 310° C., preferably from 240 to 280° C., and a WHSV over the catalyst of from 0.01 to 1.0, preferably from 0.02 to 1, in particular from 0.05 to 0.5, kg of starting material/l of catalystxhour.

公开(公告)号：AT261923T

公开(公告)日：2004-04-15

申请号：AT00949204

申请日：2000-06-21

Applicant: BASF AG

Inventor： STEIN FRANK ,  KRUG THOMAS ,  NOEBEL THOMAS ,  RUST HARALD

IPC: C07B61/00 ,  C07C29/149 ,  C07C31/20

Abstract: A process for preparing 1,6-hexanediol from a carboxylic acid mixture comprising adipic acid, 6-hydroxycaproic acid and small amounts of 1,4-cyclohexanediols which is obtained as by-product in the oxidation of cyclohexane to cyclohexanone/cyclohexanol after water extraction of the reaction mixture followed by extraction with aqueous sodium hydroxide solution, by esterification of the acids and hydrogenation comprisesa) liberating the carboxylic acids from the alkaline extract by addition of a mineral acid,b) fractionating the organic phase comprising carboxylic acids to give a distillate comprising the low molecular weight monocarboxylic acids and a residue comprising adipic acid and 6-hydroxycaproic acid,c) reacting the monocarboxylic an dicarboxylic acids present in the aqueous dicarboxylic acid mixture with a low molecular weight alcohol to give the corresponding carboxylic esters,d) freeing the esterification mixture obtained of excess alcohol and low boilers in a first distillation step,e) fractionating the bottom product in a second distillation step to give an ester fraction essentially free of 1,4-cyclohexanediols and a fraction comprising at least the major part of the 1,4-cyclohexanediols,f) catalytically hydrogenating the ester fraction which is essentially free of 1,4-cyclohexanediols andg) isolating 1,6-hexanediol from the hydrogenation product in a manner known per se in a final distillation step.