-
1.
公开(公告)号:AU2003242665A1
公开(公告)日:2003-12-22
申请号:AU2003242665
申请日:2003-06-11
Applicant: BASF AG
Inventor: BORCHERT HOLGER , SCHUBERT MARKUS , ROSCH MARKUS , BOTTKE NILS , FISCHER ROLF-HARTMUTH , WECK ALEXANDER , WINDECKER GUNTHER , HEYDRICH GUNNAR , HESSE MICHAEL , SCHLITTER STEPHAN
IPC: C07B61/00 , C07C29/149 , C07C31/20
Abstract: Optionally alkyl-substituted 1,4-butanediol is prepared from C 4 -dicarboxylic acids and/or of derivatives thereof by: a) introducing a gas stream of the C 4 -dicarboxylic acid or the derivative thereof in a first reactor in the gas phase to obtain a product which contains mainly optionally alkyl-substituted gamma-butyro-lactone; b) removing succinic anhydride from the product of step a); c) catalytically hydrogenating the product of step b) in a second reactor in the gas phase to obtain optionally alkyl-substituted 1,4-butanediol; d) removing the desired product from intermediates, by-products and any unconverted reactants; and e) optionally recycling unconverted intermediates into one or both hydrogenation stages. The catalysts employed in each of the hydrogenation stages comprise
-
公开(公告)号:AU2003238491A8
公开(公告)日:2003-12-22
申请号:AU2003238491
申请日:2003-06-10
Applicant: BASF AG
Inventor: ROSCH MARKUS , WECK ALEXANDER , HEYDRICH GUNNAR , SCHLITTER STEPHAN , FISCHER ROLF-HARTMUTH , BORCHERT HOLGER , SCHUBERT MARKUS , HESSE MICHAEL , BOTTKE NILS , WINDECKER GUNTHER
IPC: C07C29/149 , C07D315/00 , C07C31/20 , C07D307/20
Abstract: The invention relates to a method for producing optionally akyl-substituted 1,4-butandiol by two-stage catalytic hydration in the gaseous phase of C4 dicarboxylic acids and/or the derivatives thereof with the steps of: a) introducing a gaseous flow of a C4 dicarboxylic acid or a derivative thereof at 200 to 300 °C and 2 to 60 bar in a first reactor and catalytic gas phase hydration to a mainly optionally alkyl-substituted gamma-butyrolactone containing product; b) introducing the product flow so obtained into a second reactor at a temperature of from 150 °C to 240 °C and a pressure of from 15 to 100 bar and catalytic gas phase hydration to optionally alkyl-substituted 1,4-butandiol; c) removing the desired product from the intermediates, byproducts and possibly not reacted educt; d) optionally returning non-reacted intermediates to one or both hydration stages, whereby in both hydration stages one catalyst each is used which comprises = 5 % by weight, preferably 5 to 95 % by weight, especially 20 to 90 % by weight of an oxidic carrier, the pressure prevailing in the second reactor is higher than in the first reactor, and the product mixture removed from the first reactor is introduced into the second reactor without further purifying it.
-
公开(公告)号:ES2246044T3
公开(公告)日:2006-02-01
申请号:ES03709732
申请日:2003-02-28
Applicant: BASF AG
Inventor: WINDECKER GUNTHER , WECK ALEXANDER , FISCHER ROLF-HARTMUTH , ROSCH MARKUS , BOTTKE NILS , HESSE MICHAEL
IPC: B01D3/14 , C07D307/08
Abstract: Procedimiento para la purificación por destilación de tetrahidrofurano en bruto, que contiene agua, en el cual se conduce el tetrahidrofurano en bruto a través de tres columnas de destilación, se retira agua a partir de la cola de la primera columna, el tetrahidrofurano, que contiene agua, se recicla desde la cabeza de la segunda columna hasta la primera columna, se conduce una descarga lateral desde la primera columna hasta la segunda columna, el producto de cola de la tercera columna se recicla hasta la primera columna, retirándose por la cabeza de la primera columna un destilado, caracterizado porque se conduce una descarga lateral desde la segunda columna hasta la tercera columna y el tetrahidrofurano puro se obtiene como producto de cabeza de la tercera columna. Sigue una hoja de dibujos.
-
公开(公告)号:SK287042B6
公开(公告)日:2009-10-07
申请号:SK13202003
申请日:2002-04-24
Applicant: BASF AG
Inventor: FISCHER ROLF-HARTMUTH , ROSCH MARKUS , GOTZ NORBERT
IPC: B01J23/44 , C07B31/00 , B01J23/88 , B01J27/19 , C07B61/00 , C07C41/00 , C07C41/18 , C07C43/00 , C07C43/205
Abstract: The invention relates to a method for producing trimetoxytoluene of formula I, wherein the corresponding benzoic acids, benzoic acid esters or benzoic acid anhydrides react with hydrogen in the presence of catalyst.
-
公开(公告)号:AU2003246407A1
公开(公告)日:2003-12-22
申请号:AU2003246407
申请日:2003-06-10
Applicant: BASF AG
Inventor: WECK ALEXANDER , WINDECKER GUNTHER , HEYDRICH GUNNAR , HESSE MICHAEL , SCHLITTER STEPHAN , BORCHERT HOLGER , SCHUBERT MARKUS , ROSCH MARKUS , BOTTKE NILS , FISCHER ROLF-HARTMUTH
IPC: C07B61/00 , C07C29/149 , C07C31/20
Abstract: The present invention relates to a process for preparing optionally alkyl-substituted 1,4-butanediol by two-stage catalytic hydrogenation in the gas phase of C 4 -dicarboxylic acids and/or of derivatives thereof having the following steps: a) introducing a gas stream of a C 4 -dicarboxylic acid or of a derivative thereof at from 200 to 300° C. and from 10 to 100 bar into a first reactor or into a first reaction zone of a reactor and catalytically hydrogenating it in the gas phase to a product which contains mainly optionally alkyl-substituted gamma-butyrolactone; b) introducing the product stream obtained in this way into a second reactor or into a second reaction zone of a reactor at a temperature of from 140° C. to 260° C. and catalytically hydrogenating it in the gas phase to optionally alkyl-substituted 1,4-butanediol; steps a) and b) being carried out at the same pressure; c) removing the desired product from intermediates, by-products and any unconverted reactants; d) optionally recycling unconverted intermediates into one or both hydrogenation stages, said hydrogenation stages each using a catalyst which comprises =5% by weight, preferably from 5 to 95% by weight, in particular from 20 to 90% by weight, of an oxidic support, and the product mixture removed from the first hydrogenation stage being introduced without further purification into the second hydrogenation stage.
-
公开(公告)号:AU2003222308A1
公开(公告)日:2003-11-17
申请号:AU2003222308
申请日:2003-04-25
Applicant: BASF AG
Inventor: BOTTKE NILS , SCHLITTER STEPHAN , HESSE MICHAEL , WECK ALEXANDER , WINDECKER GUNTHER , HEYDRICH GUNNAR , PINKOS ROLF , FISCHER ROLF-HARTMUTH , ROSCH MARKUS
IPC: C07D307/33 , B01J21/08 , B01J23/72 , C07B61/00 , C07D307/20
Abstract: The present invention relates to a process for preparing unsubstituted or C 1 -C 4 -alkyl-substituted gamma-butyrolactone by catalytic hydrogenation of maleic acid and/or its derivatives in the presence of chromium-free catalyst comprising from 10 to 80% by weight of copper oxide and from 10 to 90% by weight of at least one catalyst support selected from the group consisting of silicon dioxide, titanium dioxide, hafnium dioxide, magnesium silicate, activated carbon, silicon carbide, zirconium dioxide and alpha-aluminum oxide.
-
公开(公告)号:AU2003214082A1
公开(公告)日:2003-09-16
申请号:AU2003214082
申请日:2003-02-28
Applicant: BASF AG
Inventor: WECK ALEXANDER , FISCHER ROLF-HARTMUTH , ROSCH MARKUS , BOTTKE NILS , HESSE MICHAEL , SCHLITTER STEPHAN , BORCHERT HOLGER , WINDECKER GUNTHER
IPC: B01D3/14 , C07D307/08
Abstract: Crude water-containing tetrahydrofuran is purified by passing the crude tetrahydrofuran through three distillation columns, withdrawing water from the bottom of the first column, recycling water-containing tetrahydrofuran from the top of the second column into the first column, passing a sidestream of the first column into the second column, recycling the bottom product of the third column into the first column, and withdrawing a distillate at the top of the first column. Additionally, a sidestream of the second column is passed into the third column and the purified tetrahydrofuran is recovered as the top product of the third column.
-
公开(公告)号:ES2285110T3
公开(公告)日:2007-11-16
申请号:ES03717319
申请日:2003-04-25
Applicant: BASF AG
Inventor: PINKOS ROLF , FISCHER ROLF-HARTMUTH , ROSCH MARKUS , BOTTKE NILS , SCHLITTER STEPHAN , HESSE MICHAEL
IPC: C07D307/20 , B01J21/08 , C07D307/33 , B01J23/72 , C07B61/00
Abstract: Un proceso para preparar gamma-butirolactona insustituida o sustituida por alquilo de C1-C4mediante hidrogenación catalítica de ácido maleico insustituido o sustituido por alquilo de C1-C4, ácido succínico y/o ésteres y anhídridos en la presencia de catalizador libre de cromo que contienen de 10 hasta 80% en peso de óxido de cobre, hasta 50% en peso de al menos un metal o compuesto metálico de los elementos de los grupos 1 y 2 de la tabla periódica de los elementos y/o los metales de tierras raras incluyen a los lantánidos y desde 10 hasta 90% en peso de al menos un soporte de catalizador seleccionado del grupo consistente en dióxido de silicio, dióxido de titanio, dióxido de hafnio, silicato de magnesio, carbón activado, carburo de silicio, dióxido de circonio y óxido alfa-aluminio, estando el óxido de cobre finamente dividido e íntimamente mezclado con los otros componentes.
-
公开(公告)号:AU2002310874B2
公开(公告)日:2007-10-04
申请号:AU2002310874
申请日:2002-04-24
Applicant: BASF AG
Inventor: FISCHER ROLF-HARTMUTH , GOTZ NORBERT , ROSCH MARKUS
IPC: B01J23/44 , B01J23/88 , B01J27/19 , C07B31/00 , C07B61/00 , C07C41/00 , C07C41/18 , C07C43/00 , C07C43/205
Abstract: A process for preparing toluene derivatives of the formula I where R 1 , R 2 and R 3 are, independently of one another, hydrogen, alkyl radicals, hydroxyl groups and/or alkoxy groups, comprises reacting the corresponding benzoic acids, benzoic esters or benzoic anhydrides with hydrogen in the presence of a catalyst.
-
公开(公告)号:ES2243754T3
公开(公告)日:2005-12-01
申请号:ES02754703
申请日:2002-06-18
Applicant: BASF AG
Inventor: FISCHER ROLF-HARTMUTH , PINKOS ROLF , ROSCH MARKUS , STEIN FRANK
IPC: C07D201/08 , C07D207/26 , C07D207/267
Abstract: Procedimiento para la obtención de pirrolidona en caso dado N-substituida mediante hidrogenación en fase gaseosa bajo condiciones anhidras de un substrato, que se elige entre los ácidos dicarboxílicos con 4 átomos de carbono y sus derivados, en caso dado con adición de amoníaco o de aminas primarias, con empleo de un catalizador exento de Cr, que presenta desde un 5 hasta un 95 % en peso de CuO, preferentemente desde un 30 hasta un 70 % en peso de CuO, y desde un 5 hasta un 95 % en peso de Al2O3, preferentemente desde un 30 hasta un 70 % en peso de Al2O3, y desde 0 hasta un 60 % en peso, preferentemente desde un 5 hasta un 40 % en peso de ZnO.
-
-
-
-
-
-
-
-
-