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公开(公告)号:DE50300824D1
公开(公告)日:2005-08-25
申请号:DE50300824
申请日:2003-02-28
Applicant: BASF AG
Inventor: WINDECKER GUNTHER , WECK ALEXANDER , FISCHER ROLF-HARTMUTH , ROESCH MARKUS , BOTTKE NILS , HESSE MICHAEL , SCHLITTER STEPHAN , BORCHERT HOLGER
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.
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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.
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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.
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公开(公告)号:PL372164A1
公开(公告)日:2005-07-11
申请号:PL37216403
申请日:2003-01-20
Applicant: BASF AG
Inventor: BOTTKE NILS , FISCHER ROLF-HARTMUTH , NOEBEL THOMAS , ROESCH MARKUS
IPC: C07C41/18 , B01J23/00 , B01J23/72 , B01J23/755 , B01J23/885 , B01J23/889 , C07B61/00 , C07C43/205 , C07C1/22
Abstract: A process for preparing toluene derivatives of the formula I, where R 1 , R 2 and R 3 independently of one another are hydrogen, halogen, C 1 -C 6 -alkyl, hydroxyl or C 1 -C 6 -alkoxy, by hydrogenating benzaldehydes and/or benzyl alcohols of the formula II, with hydrogen in the presence of a catalyst, which is described in more detail in the description.
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公开(公告)号:BR0311251A
公开(公告)日:2005-03-15
申请号:BR0311251
申请日:2003-05-21
Applicant: BASF AG
Inventor: MAIXNER STEFAN , BENISCH CHRISTOPH , LUYKEN HERMANN , BASSLER PETER , FISCHER ROLF-HARTMUTH , MELDER JOHANN-PETER , ANSMANN ANDREAS
IPC: C07C209/84 , C07C211/09 , C07C211/12 , C07C253/34 , C07C255/09 , C07C255/24
Abstract: A process for reducing the level of an aliphatic monounsaturated amine (IV) in a mixture (V) containing an aminonitrile (I) or a diamine (II) or a dinitrile (III) or mixtures thereof as well as said mine (IV) by a) reacting said mixture (V) with an anionic nucleophile (VI) which contains a nucleophilic atom selected from the group consisting of oxygen, nitrogen and sulfur, which is capable of taking up an H + ion to form an acid having a pK a value in the range from 7 to 11, as measured in water at 25° C., and which has a relative nucleophilicity, as measured in methyl perchlorate/methanol at 25° C., in the range from 3.4 to 4.7 when said nucleophilic atom is oxygen, in the range from 4.5 to 5.8 when said nucleophilic atom is nitrogen, and in the range from 5.5 to 6.8 when said nucleophilic atom is sulfur, in an amount in the range from 0.01 to 10 mol per mole of said amine (IV) in said mixture (V) at a temperature in the range from 50 to 200° C. to obtain a mixture (VII), b) distilling said aminonitrile (I) or said diamine (II) or said dinitrile (III) or mixtures thereof from said mixture (VII) at a temperature in the range from 50 to 200° C. and at a pressure in the range from 0.1 to 100 kPa to obtain a bottom product (VIII), which comprises c) distilling an aminonitrile (I) or diamine (II) or dinitrile (III) or mixtures thereof from said bottom product (VIII) at a temperature which is lower than that chosen in step b).
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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.
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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.
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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.
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公开(公告)号:MY117849A
公开(公告)日:2004-08-30
申请号:MYPI9701383
申请日:1997-03-31
Applicant: BASF AG
Inventor: VOIT GUIDO , FLICK KLEMENS , FISCHER ROLF-HARTMUTH , SCHNURR WERNER
IPC: B01J23/78 , C07C209/48 , B01J23/94 , B01J27/187 , B01J27/28 , B01J38/10 , C07B61/00 , C07C211/12 , C07C253/30 , C07C255/24
Abstract: A PROCESS FOR PREPARING AN NH2-CONTAINING COMPOUND BY HYDROGENATING A COMPOUND CONTAINING AT LEAST ONE UNSATURATED CARBON-NITROGEN BOND WITH HYDROGEN IN THE PRESENCE OF A CATALYST AT TEMPERATURES NOT BELOW ROOM TEMPERATURE AND ELEVATED HYDROGEN PARTIAL PRESSURE IN THE PRESENCE OR ABSENCE OF A SOLVENT WHICH COMPRISES A)USING A CATALYST COMPRISING A COBALT- AND/OR IRON-CONTAINING CATALYST, AND B)AFTER THE CONVERSION BASED ON THE COMPOUND TO BE HYDROGENATED AND/OR THE SELECTIVITY ON THE DESIRED PRODUCT HAS OR HAVE DROPPED BELOW A DEFINED VALUE OR THE AMOUNT OF AN UNWANTED BY-PRODUCT HAS RISEN BEYOND A DEFINED VALUE, INTERUPTING THE HYDROGENATION BY STOPPING THE FEED OF THE COMPOUND TO BE HYDROGENATED AND OF THE SOLVENT, IF USED, C)TREATING THE CATALYST AT FROM 150 TO 400°C WITH HYDROGEN USING A HYDROGEN PRESSURE WITHIN THE RANGE FROM 0.1 TO 30 MPA AND A TREATMENT TIME WITHIN THE RANGE FROM 2 TO 48 H, AND D)SUBSEQUENTLY CONTINUING THE HYDROGENATION OF THE COMPOUND CONTAINING AT LEAST ONE UNSATURATED CARBON-NITROGEN BOND.
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公开(公告)号:AU2003302024A1
公开(公告)日:2004-06-15
申请号:AU2003302024
申请日:2003-11-11
Applicant: BASF AG
Inventor: SIRCH TILMAN , HAUNERT ANDREA , FISCHER ROLF-HARTMUTH , KRUG THOMAS
IPC: C07C41/28 , C07C67/317
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