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公开(公告)号:ES2240511T3
公开(公告)日:2005-10-16
申请号:ES01967141
申请日:2001-07-10
Applicant: BASF AG
Inventor: BASSLER PETER , WINTERLING HELMUT DR , FISCHER ROLF-HARTMUTH , LOTH WOLFGANG
Abstract: Procedimiento continuo para la obtención de una poliamida por reacción de al menos un aminonitrilo con agua, que comprende las siguientes etapas: (1) reacción de al menos un aminonitrilo con agua en presencia de un diluyente líquido orgánico a una temperatura desde 90 hasta 400ºC y a una presión de 0, 1 hasta 35 x 106 Pa en un tubo de corriente, que contiene un catalizador de ácido de Brönsted, escogido entre un catalizador de beta-zeolita, de filosilicato o de dióxido de titanio, formado por un 70 hasta un 100 % en peso de anatasa y de un 0 hasta un 30 % en peso de rutilo, en el cual hasta un 40 % del dióxido de titanio puede estar substituido por óxido de tungsteno, obteniéndose una mezcla de reacción, (2) reacción adicional de la mezcla de reacción a una temperatura desde 150 hasta 400ºC y a una presión, que es más baja, que la presión en la etapa 1, que puede llevarse a cabo en presencia de un catalizador de ácido de Brönsted, escogido entre un catalizador de beta-zeolita, de filosilicato o de dióxido de titanio, formado por un 70 hasta un 100 % en peso de anatasa y de un 0 hasta un 30 % en peso de rutilo, en el cual puede estar substituido hasta un 40 % en peso del dióxido de titanio por óxido de tungsteno, seleccionándose la temperatura y la presión de tal manera, que se obtienen una primera fase de gas y una primera fase líquida o una primera fase sólida o una mezcla, constituida por una primera fase sólida y una primera fase líquida, y se separa la primera fase gaseosa de la primera fase líquida o de la primera fase sólida o de la mezcla, constituida por la primera fase líquida y la primera fase sólida, y (3) reacción de la primera fase líquida o de la primera fase sólida o de la mezcla, constituida por la primera fase líquida y la primer fase sólida, con una fase gaseosa o líquida, que contiene agua, a una temperatura desde 150 hasta 370ºC y a una presión de 0, 1 hasta 30 x 106 Pa, obteniéndose una mezcla de productos.
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公开(公告)号:AT299872T
公开(公告)日:2005-08-15
申请号:AT03709732
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:DE50203573D1
公开(公告)日:2005-08-11
申请号:DE50203573
申请日:2002-04-24
Applicant: BASF AG
Inventor: FISCHER ROLF-HARTMUTH , ROESCH MARKUS , GOETZ NORBERT
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.
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公开(公告)号:DE50106263D1
公开(公告)日:2005-06-23
申请号:DE50106263
申请日:2001-07-10
Applicant: BASF AG
Inventor: BASSLER PETER , WINTERLING DR , FISCHER ROLF-HARTMUTH , LOTH WOLFGANG
Abstract: The continuous process for preparing a polyamide by reacting at least one aminonitrile with water comprises:(1) reacting at least one aminonitrile with water in the presence of an organic liquid diluent at from 90 to 400° C. and from 0.1 to 35x10 Pa in a flow tube containing a Brönsted acid catalyst selected from a beta-zeolite catalyst, a sheet-silicate catalyst or a titanium dioxide catalyst comprising from 70 to 100% by weight of anatase and from 0 to 30% by weight of rutile and in which up to 40% by weight of the titanium dioxide may be replaced by tungsten oxide, to obtain a reaction mixture,(2) further reacting the reaction mixture at from 150 to 400° C. and a pressure which is lower than the pressure in stage 1 in the presence of a Brönsted acid catalyst selected from a beta-zeolite catalyst, a sheet-silicate catalyst or a titanium dioxide catalyst comprising from 70 to 100% by weight of anatase and from 0 to 30% by weight of rutile and in which up to 40% by weight of the titanium dioxide may be replaced by tungsten oxide, the temperature and pressure being selected so as to obtain a first gas phase and a first liquid phase or a first solid phase or a mixture of first solid and first liquid phases and so that the first gas phase is separated from the first liquid phase or first solid phase or from the mixture of first liquid and first solid phases, and(3) admixing the first liquid or the first solid phase or the mixture of first liquid and first solid phases with a gaseous or liquid phase comprising water at from 150 to 370° C. and from 0.1 to 30x10 Pa, to obtain a product mixture.
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公开(公告)号:ZA200309188B
公开(公告)日:2005-06-13
申请号:ZA200309188
申请日:2003-11-26
Applicant: BASF AG
Inventor: FISCHER ROLF-HARTMUTH , GOETZ NOBERT , ROESCH MARKUS
IPC: B01J23/44 , B01J23/88 , B01J27/19 , C07B31/00 , C07B61/00 , C07C41/00 , C07C41/18 , C07C43/00 , C07C43/205 , C07B , C07C
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.
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公开(公告)号:AT287398T
公开(公告)日:2005-02-15
申请号:AT02758298
申请日:2002-07-03
Applicant: BASF AG
Inventor: SCHLITTER STEPHAN , BORCHERT HOLGER , HESSE MICHAEL , SCHUBERT MARKUS , BOTTKE NILS , FISCHER ROLF-HARTMUTH , ROESCH MARKUS , HEYDRICH GUNNAR , WECK ALEXANDER
IPC: B01J23/89 , B01J37/02 , B01J37/03 , C07D307/08 , C07D307/33 , C07D315/00
Abstract: A catalyst (I) for the gas phase hydrogenation of 4C-dicarboxylic acids and/or derivatives, preferably maleic acid anhydride, comprises copper oxide (20-94 wt.%), palladium and/or a palladium compound (0.005-5 wt.%) and an oxide support (2-79.995 wt.%) comprising oxides of Al, Si, Zn, La, Ce, Group IIIa-VIIIa elements and/or Group IA and II elements. Independent claims are also included for: (i) a process for the production of the catalyst (I) by impregnation of an oxide supported copper oxide catalyst with a solution of a soluble palladium compound, drying and optionally calcining; and (ii) a process for the gas phase hydrogenation of 4C-dicarboxylic acids and/or derivatives, preferably maleic acid anhydride in the presence of the catalyst (I).
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公开(公告)号:DE50201527D1
公开(公告)日:2004-12-16
申请号:DE50201527
申请日:2002-06-24
Applicant: BASF AG
Inventor: SCHLITTER STEPHAN , SIGWART CHRISTOPH , DOERFLINGER WALTER , HESSE MICHAEL , FISCHER ROLF-HARTMUTH
Abstract: Polytetrahydrofuran, polytetrahydrofuran copolymers, diesters or monoesters of these polymers are prepared by polymerization of tetrahydrofuran in the presence of at least one telogen and/or comonomer, which is in the form of shaped catalyst bodies or catalyst particles having a volume of the individual shape of the body or particle of at least 0.05 mm 3 , preferably at least 0.2 mm 3 , in particular 1 mm 3 , and has at least one of the features a) and b): a) a pore radius distribution having at least one maximum in the pore radius range from 100 to 5000 Å, b) a pore volume of catalyst pores having radii of 200-3000 Å of greater than 0.05 cm 3 /g and/or a pore volume of pores having radii of 200-5000 Å of greater than 0.075 cm 3 /g and/or a pore volume of pores having radii of >200 Å of greater than 0.1 cm 3 /g.
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公开(公告)号:BR0306939A
公开(公告)日:2004-12-14
申请号:BR0306939
申请日:2003-01-20
Applicant: BASF AG
Inventor: BOTTKE NILS , FISCHER ROLF-HARTMUTH , BEL THOMAS N , SCH MARKUS R
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:BR0213255A
公开(公告)日:2004-09-28
申请号:BR0213255
申请日:2002-10-18
Applicant: BASF AG
Inventor: ANSMANN ANDREAS , BENISCH CHRISTOPH , BASSLER PETER , FISCHER ROLF-HARTMUTH , MAIXNER STEFAN , MELDER JOHANN-PETER , LUYKEN HERMANN
IPC: B01J37/18 , B01J23/745 , B01J23/889 , C07B61/00 , C07C209/48 , C07C211/12
Abstract: An oxidic composition which is suitable as a catalyst having divalent and trivalent iron in an atomic ratio of divalent to trivalent iron in the range from greater than 0.5 to 5.5 and oxygen as a counterion to the divalent and trivalent iron. The catalyst composition is useful in the hydrogenation of nitriles to amines.
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公开(公告)号:DE10308489A1
公开(公告)日:2004-09-09
申请号:DE10308489
申请日:2003-02-26
Applicant: BASF AG
Inventor: FISCHER ROLF-HARTMUTH , MODI ANDREA , NOEBEL THOMAS , PINKOS ROLF
IPC: C07C45/48 , C07C45/82 , C07C49/395 , C07D313/04 , C07C45/41 , B01D3/36 , C07C49/297 , C07D307/22
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