公开(公告)号：DE10219224A1

公开(公告)日：2003-11-13

申请号：DE10219224

申请日：2002-04-30

Applicant: BASF AG

Inventor： PINKOS ROLF ,  FISCHER ROLF-HARTMUTH ,  ROESCH MARKUS ,  BOTTKE NILS ,  SCHLITTER STEPHAN ,  HESSE MICHAEL ,  WECK ALEXANDER ,  WINDECKER GUNTHER ,  HEYDRICH GUNNAR

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：MY157621A

公开(公告)日：2016-06-30

申请号：MYPI20060455

申请日：2006-02-03

Applicant: BASF AG

Inventor： WECK ALEXANDER ,  RÖSCH MARKUS DR ,  WINDECKER GUNTHER ,  HEYDRICH GUNNAR DR ,  PINKOS ROLF DR ,  SCHUBERT OLGA DR ,  HARTH KLAUS DR

IPC: G01N33/00

Abstract: THE INVENTION RELATES TO A METHOD OF CONTROLLING A HYDRO.-ENATION OF A STARTING MATERIAL IN A HYDROGENATION REACTOR, IN WHICH THE AMOUNT OF HYDROGEN REACTED IN THE BYDROGENATION IS FIRSTLY DETERMINED, THE RATIO OF THE AMOUNT OF HYDROGEN REACTED TO THE AMOUNT OF STARTING MATERIAL FED IN IS THEN DERIVED, THIS RATIO IS COMPARED WITH A PRESCRIBED VALUE AND, FINALLY, AT LEAST ONE PROCESS PARAMETER IS ALTERED IF THE RATIO OF THE AMOUNT OF HYDROGEN REACTED TO THE AMOUNT OF STARTING MATERIAL FED IN DEVIATES BY A PRESCRIBED AMOUNT FROM THE PRESCRIBED VALUE.

公开(公告)号：MY139906A

公开(公告)日：2009-11-30

申请号：MYPI20030658

申请日：2003-02-25

Applicant: BASF AG

Inventor： FISCHER ROLF-HARTMUTH DR ,  SCH MARKUS R XD DR ,  BOTTKE NILS DR ,  WECK ALEXANDER ,  WINDECKER GUNTHER ,  HESSE MICHAEL DR ,  BORCHERT HOLGER DR ,  SCHLITTER STEPHAN DR

IPC: C07D207/26 ,  B01J23/72 ,  B01J23/80 ,  C07B61/00 ,  C07D207/267 ,  C07D307/08

Abstract: A PROCESS FOR COPRODUCING ALKYL-SUBSTITUTED OR UNSUBSTITUTED THF AND PYRROLIDONES BY CATALYTICALLY HYDROGENATION C4- DICARBOXYLIC ACIDS AND/OR DERIVATIVES THEREOF IN THE GAS PHASE IN THE PRESENCE OF COPPER CATALYSTS AND THE REACTING GBL WITH AMMONIA OR PRIMARY AMINES TO GIVE PYRROLIDONES COMPRISES A) HYDROGENATING C4-DICARBOXYLIC ACIDS AND/OR THE DERIVATIVES THEREOF IN THE GAS PHASE AT 200 TO 300°C, 10 TO 10000 KPA (0.1 TO 100 BAR), CATALYST HOURLY SPACE VELOCITIES OF FROM 0.01 TO 1 KG OF REACTANT/L OF CATALYST* HOUR AND REACTANT/HYDROGEN MATERIAL/HYDROGEN MOLAR RATIOS OF 20 TO 800 IN THE PRESENCE OF CATALYSTS COMPRISING COPPER, ALUMINIUM AND/OR ZINC TO GIVE MIXTURES OF THF AND GBL, B) SEPARATING THE HYDROGENATION EFFLUENT OBTAINED BY DISTILLATION INTO A THF/WATER MIXTURE AS TOP PRODUCT AND A GBL-CONTAINING BOTTOM PRODUCT, C) SEPARATING THE THF/WATER MIXTURE FROM STEP B) IN A DISTILLATION FACILITY CONSISTING OF THREE COLUMNS (1,2,3) BY WITHDRAWING WATER FROM THE BOTTOM OF THE FIRST COLUMN (1), RECYCLING WATER-CONTAINING THF FROM THE SECOND TO THE FIRST COLUMN, PASSING A SIDE STREAM FROM THE FIRST COLUMN (1) INTO THE SECOND COLUMN (2), RECYCLING THE BOTTOM PRODUCT OF THE THIRD COLUMN (3) INTO THE FIRST COLUMN (1) AND WITHDRAWING A DISTILLATE AT THE TOP OF THE FIRST COLUMN (1), WHEREIN A SIDE STREAM OF THE SECOND COLUMN (2) IS PASSED INTO THE THIRD COLUMN (3) AND THE PURE THF IS OBTAINED AS THE TOP PRODUCT OF THE THIRD COLUMN (3), D) RECOVERING GBL FROM THE GBL-CONTAINING BOTTOM PRODUCT FROM STEP B) BY DISTILLATION AND E) REACTING THE GBL OBTAINED WITH AMMONIA OR AMINES TO GIVE THE CORRESPONDING PYRROLIDONES.

公开(公告)号：CA2657119A1

公开(公告)日：2008-01-31

申请号：CA2657119

申请日：2007-07-16

Applicant: BASF AG

Inventor： HEIMANN JENS ,  PINKOS ROLF ,  WINDECKER GUNTHER ,  URTEL HEIKO ,  POLKA HANS-MARTIN

IPC: C07B63/00 ,  C07C29/149 ,  C07C31/20 ,  C07C209/48

Abstract: The present invention relates to a process for separating solvents from s olvent-containing hydrogenation product mixtures from a catalytic hydrogenat ion process, which mixtures contain a water-soluble hydrogenation product ha ving an alcohol, lactone, ether, lactam or amino group in a solvent which is immiscible or not fully miscible with water and has a boiling point below 1 00°C, characterized in that water is added to the hydrogenation product mixt ure and the solvent-containing phase is separated off and recirculated to th e hydrogenation.

公开(公告)号：DE50307562D1

公开(公告)日：2007-08-09

申请号：DE50307562

申请日：2003-02-28

Applicant: BASF AG

Inventor： FISCHER ROLF-HARTMUTH ,  ROESCH MARKUS ,  BOTTKE NILS ,  WECK ALEXANDER ,  WINDECKER GUNTHER ,  HESSE MICHAEL ,  BORCHERT HOLGER ,  SCHLITTER STEPHAN

IPC: C07D207/26 ,  B01J23/72 ,  B01J23/80 ,  C07B61/00 ,  C07D207/267 ,  C07D307/08

Abstract: A process for coproducing alkyl-substituted or unsubstituted THF and pyrrolidones by catalytically hydrogenating C 4 -dicarboxylic acids and/or derivatives thereof in the gas phase in the presence of copper catalysts and reacting GBL with ammonia or primary amines to give pyrrolidones comprises a) hydrogenating C 4 -dicarboxylic acids and/or derivatives thereof in the gas phase at from 200 to 300° C., from 0.1 to 100 bar, catalyst hourly space velocities of from 0.01 to 1 kg of reactant/l of catalyst*hour and reactant/hydrogen molar ratios of from 20 to 800 in the presence of catalysts comprising copper, aluminum and/or zinc to give mixtures of THF and GBL, b) separating the hydrogenation effluent obtained by distillation into a THF/water mixture as the top product and a GBL-containing bottom product, c) separating the THF/water mixture from step b) in a distillation facility consisting of three columns by withdrawing water from the bottom of the first column, recycling water-containing THF from the second into the first column, passing a side stream of the first 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, wherein a side stream of the second column is passed into the third column and the pure THF is obtained as the top product of the third column, d) recovering GBL from the GBL-containing bottom product from step b) by distillation and e) reacting the GBL obtained with ammonia or amines to give corresponding pyrrolidones.

公开(公告)号：DE102004047201A1

公开(公告)日：2006-03-30

申请号：DE102004047201

申请日：2004-09-29

Applicant: BASF AG

Inventor： WINDECKER GUNTHER ,  WECK ALEXANDER ,  ROESCH MARKUS ,  STEINIGER MICHAEL ,  PINKOS ROLF ,  HAUTTE DANY

IPC: C07D307/08

Abstract: The present invention provides a process for distillatively purifying tetrahydrofuran in the presence of a polar solvent.

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：DE10225927A1

公开(公告)日：2003-12-24

申请号：DE10225927

申请日：2002-06-11

Applicant: BASF AG

Inventor： HESSE MICHAEL ,  SCHLITTER STEPHAN ,  BORCHERT HOLGER ,  SCHUBERT MARKUS ,  ROESCH MARKUS ,  BOTTKE NILS ,  FISCHER ROLF-HARTMUTH ,  WECK ALEXANDER ,  WINDECKER GUNTHER ,  HEYDRICH GUNNAR

IPC: B01J23/80 ,  C07B61/00 ,  C07C29/149 ,  C07C31/20 ,  C07C29/132 ,  C07D307/20 ,  C07D307/32

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 2 to 60 bar into a first reactor and catalytically hydrogenating it to a product which contains mainly optionally alkyl-substituted gamma-butyrolactone; b) converting the product stream into the liquid phase; c) introducing the product stream obtained in this way into a second reactor at a temperature of from 100° C. to 240° C. and a pressure of from 20 to 250 bar and catalytically hydrogenating it in the liquid phase to optionally alkyl-substituted 1,4-butanediol; d) removing the desired product from by-products and any unconverted reactants; e) optionally recycling unconverted intermediates into one or both hydrogenation stages, said hydrogenation stages both using a catalyst which comprises =5% by weight, preferably from 5 to 95% by weight, in particular from 20 to 90% by weight, of a support, said second reactor having a higher pressure than said first reactor, and the product mixture removed from said first reactor being introduced without further purification into said second reactor.