公开(公告)号：AT295862T

公开(公告)日：2005-06-15

申请号：AT01967141

申请日：2001-07-10

Applicant: BASF AG

Inventor： BASSLER PETER ,  WINTERLING HELMUT DR ,  FISCHER ROLF-HARTMUTH ,  LOTH WOLFGANG

IPC: C08G69/00 ,  C08G69/04 ,  C08G69/08 ,  C08G69/16

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.

公开(公告)号：ES2231718T3

公开(公告)日：2005-05-16

申请号：ES02748813

申请日：2002-06-24

Applicant: BASF AG

Inventor： SCHLITTER STEPHAN ,  SIGWART CHRISTOPH ,  DORFLINGER WALTER ,  HESSE MICHAEL ,  FISCHER ROLF-HARTMUTH

IPC: B01J21/16 ,  B01J35/10 ,  C08G65/20 ,  C08G65/26

Abstract: Catalizador para la obtención de politetrahidrofurano, copolímeros de politetrahidrofurano, diésteres o monoésteres de estos polímeros mediante polimerización de tetrahidrofurano en presencia de al menos un telógeno y/o comonómero estando presente el mismo en forma de cuerpos moldeados de catalizador o partículas de catalizador con un volumen del cuerpo moldeado o partícula individual de al menos 0, 05 mm3, preferentemente de al menos 0, 2 mm3 y particularmente de 0, 1 mm3 y mostrando este catalizador ambas características a) y b): a)Distribución de radios de poros con al menos un máximo de la distribución de poros en el intervalo de 100 hasta 5000 A de radios de poros, y b)Volumen de poros de poros de catalizador con radios de 2oo a 3000 A mayor que 0, 05 cm3/g y/o radios de 200 a 5000 A mayor que 0, 075 cm3/g y/o un radio de > 200 A mayor que 0, 1 cm3/g.

公开(公告)号：ES2227309T3

公开(公告)日：2005-04-01

申请号：ES01985854

申请日：2001-12-07

Applicant: BASF AG

Inventor： FISCHER ROLF-HARTMUTH ,  STEIN FRANK ,  PINKOS ROLF ,  HESSE MICHAEL ,  SPRAGUE MICHAEL JOLYON ,  RISCH MARKUS

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

Abstract: Procedimiento para la obtención de THF, en caso dado alquilsubstituido, mediante hidrogenado catalítico en la fase gaseosa de ácidos dicarboxílicos con 4 átomos de carbono y/o sus derivados, con un catalizador que contiene 20 % en peso, preferentemente > 30 % en peso, en especial un 35 a un 90 % en peso de un soporte oxídico con centros ácidos, llevándose a cabo el procedimiento a una temperatura Hot- Spot de 240 a 310ºC, preferentemente 240 a 280ºC, y cargas de catalizador de 0, 01 a 1, 0, preferentemente 0, 02 a 1, en especial 0, 05 a 0, 5 kg de educto / l de catalizador * hora.

公开(公告)号：DE50202060D1

公开(公告)日：2005-02-24

申请号：DE50202060

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).

公开(公告)号：PL360840A1

公开(公告)日：2004-09-20

申请号：PL36084001

申请日：2001-07-10

Applicant: BASF AG

Inventor： BASSLER PETER ,  WINTERLING HELMUT ,  FISCHER ROLF-HARTMUTH ,  LOTH WOLFGANG

IPC: C08G69/04 ,  C08G69/00 ,  C08G69/08 ,  C08G69/16

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.

公开(公告)号：AT273292T

公开(公告)日：2004-08-15

申请号：AT01984809

申请日：2001-12-07

Applicant: BASF AG

Inventor： BORCHERT HOLGER ,  SCHLITTER STEPHAN ,  FISCHER ROLF-HARTMUTH ,  ROESCH MARKUS ,  STEIN FRANK ,  RAHN RALF-THOMAS ,  WECK ALEXANDER ,  KAIBEL GERD

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

Abstract: The present invention relates to a process for the gas-phase hydrogenation of C4-dicarboxylic acids and/or their derivatives over a catalyst based on copper oxide to give substituted or unsubstituted gamma-butyrolactone and/or tetrahydrofuran, which comprises, which a first reaction zone in which the C4-dicarboxylic acid and/or its derivatives is/are reacted to give a mixture comprising a substituted or unsubstituted gamma-butyrolactone as main product and a subsequent second reaction zone in which the substituted or unsubstituted gamma-butyrolactone present in the mixture from the first hydrogenation step is reacted at a temperature lower than the temperature in the first hydrogenation step to give substituted or unsubstituted tetrahydrofuran.

公开(公告)号：AU2003299298A8

公开(公告)日：2004-07-09

申请号：AU2003299298

申请日：2003-12-03

Applicant: BASF AG

Inventor： FISCHER ROLF-HARTMUTH ,  SIRCH TILMAN ,  HAUNERT ANDREA ,  KRUG THOMAS ,  STUER WOLFRAM ,  ROPER MICHAEL

IPC: C07C29/17 ,  C07C69/593 ,  C07C31/20 ,  C07C67/347 ,  C07C29/149

Abstract: Production of 1,6-hexanediol of purity at least 99.5 % comprises: (1) catalytically dimerizing a 1-8C acrylic acid ester in presence of rhodium compounds to a mixture mainly of 2- and 3-hexenedioic acid diesters; (2) hydrogenating the ester mixture in chromium-free mainly copper-containing catalysts; and (3) purifying the resulting diol mixture by fractional distillation.

公开(公告)号：BR0209212A

公开(公告)日：2004-07-06

申请号：BR0209212

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.

公开(公告)号：DE10258316A1

公开(公告)日：2004-06-24

申请号：DE10258316

申请日：2002-12-13

Applicant: BASF AG

Inventor： FISCHER ROLF-HARTMUTH ,  KRUG THOMAS ,  MODI ANDREA ,  ROEPER MICHAEL ,  SIRCH TILMAN ,  STUEER WOLFRAM

IPC: C07C29/17 ,  C07C31/20 ,  C07C69/593 ,  B01J23/889

Abstract: Production of 1,6-hexanediol of purity at least 99.5 % comprises: (1) catalytically dimerizing a 1-8C acrylic acid ester in presence of rhodium compounds to a mixture mainly of 2- and 3-hexenedioic acid diesters; (2) hydrogenating the ester mixture in chromium-free mainly copper-containing catalysts; and (3) purifying the resulting diol mixture by fractional distillation.

公开(公告)号：DE10253095A1

公开(公告)日：2004-06-17

申请号：DE10253095

申请日：2002-11-13

Applicant: BASF AG

Inventor： FISCHER ROLF-HARTMUTH ,  LUYKEN HERMANN ,  ANSMANN ANDREAS ,  BASLER PETER ,  BENISCH CHRISTOPH ,  MAIXNER STEFAN ,  MELDER JOHANN-PETER

IPC: C07D201/08 ,  C07D201/16 ,  C07D223/10

Abstract: A process for removing high boilers from crude caprolactam which comprises high boilers, caprolactam and in some cases low boilers, and which has been obtained by a) reacting 6-aminocapronitrile with water to give a reaction mixture b) removing ammonia and unconverted water from the reaction mixture to obtain crude caprolactam, which comprises c) feeding the crude caprolactam to a distillation apparatus to obtain a first substream via the top as a product and a second substream via the bottom, by setting the pressure in the distillation in such a way that the bottom temperature does not go below 170° C., and adjusting the second substream in such a way that the caprolactam content of the second substream is not less than 10% by weight, based on the entire second substream.