公开(公告)号：ES2243585T3

公开(公告)日：2005-12-01

申请号：ES01989492

申请日：2001-11-21

Applicant: BASF AG

Inventor： OOST CARSTEN ,  KAIBEL GERD ,  LAAS HARALD ,  SCHMITT PETER ,  VON ERDEN JENS

IPC: B01D1/22 ,  B01D3/00 ,  B01D3/14 ,  B01D3/32 ,  C07D311/72

Abstract: Procedimiento para la obtención en continuo de derivados del éster de cromanol de la fórmula I en la que R1, R2, R3, R4, R5, R6, R7 y R8 significan, independientemente entre sí, hidrógeno o un resto alquilo con 1 a 10 átomos de carbono en caso dado substituido, ramificado o no ramificado y los enlaces en trazos discontinuos significan, en caso dado, un enlace adicional C-C, según el cual se hacen reaccionar, derivados del cromanol, alimentados de manera continua, de la fórmula II con agentes de acilación, alimentados de manera continua, elegidos entre el grupo de los ácidos carboxílicos de la fórmula IIIa R8-COOH IIIa y de los anhídridos de los ácidos carboxílicos de la fórmula IIIb donde R9 significa hidrógeno o un resto alquilo con 1 a 10 átomos de carbono en caso dado substituido, ramificado o no ramificado, en presencia de un catalizador, en una columna de reacción a modo de reactor, los productos de la reacción se descargan de manera continua del reactor y se separa de la mezcla de la reacción, al menos, un producto de la reacción durante la conversión.

公开(公告)号：DE50106594D1

公开(公告)日：2005-07-28

申请号：DE50106594

申请日：2001-11-21

Applicant: BASF AG

Inventor： OOST CARSTEN ,  KAIBEL GERD ,  LAAS HARALD ,  SCHMITT PETER ,  VON ERDEN JENS

IPC: B01D1/22 ,  B01D3/00 ,  B01D3/14 ,  B01D3/32 ,  C07D311/72

公开(公告)号：MY119458A

公开(公告)日：2005-05-31

申请号：MYPI9704749

申请日：1997-10-10

Applicant: BASF AG

Inventor： BROCKER FRANZ JOSEF ,  KAIBEL GERD ,  WULFF-DORING JOACHIM ,  BECKER RAINER ,  PINKOS ROLF DR

IPC: B01J25/02 ,  C07C29/17 ,  B01J8/02 ,  B01J8/06 ,  B01J10/00 ,  B01J19/00 ,  B01J19/24 ,  B01J19/26 ,  C07B61/00 ,  C07C31/20

Abstract: A PROCESS FOR PREPARING 1, 4-BUTANEDIOL BY CONTINUOUS CATALYTIC HYDROGENATION OF 1, 4-BUTYNEDIOL COMPRISES REACTING 1, 4-BUTYNEDIOL WITH HYDROGEN IN THE LIQUID CONTINUOUS PHASE IN THE PRESENCE OF A HETEROGENEOUS HYDROGENATION CATALYST AT FROM 20 TO 300°C, A PRESSURE OF FROM 1 TO 200 BAR AND VALUES OF THE LIQUID-SIDE VOLUMETRIC MASS TRANSFER COEFFICIENT KLA OF FROM 0.1 S-1 TO 1 S-1 A)USING A CATALYST SUSPENDED IN THE REACTION MEDIUM, WHERE IF A PACKED BUBBLE COLUMN IS EMPLOYED THIS IS OPERATED IN THE UPFLOW MODE AND AT A RATIO OF GAS LEAVING THE REACTION VESSEL TO GAS FED TO THE REACTION VESSEL OF FROM 0.99:1 TO 0.4:1, OR B)PASSING THE LIQUID AND GAS IN COCURRENT IN AN UPWARD DIRECTION THROUGH A FIXED-BED REACTOR OPERATED IN THE GAS-CIRCULATION MODE WHILE MAINTAINING A RATIO OF THE GAS FED TO THE REACTION VESSEL TO GAS LEAVING THE REACTION VESSEL OF FROM 0.99:1 TO 0.4:1.

公开(公告)号：CA2258797C

公开(公告)日：2005-04-05

申请号：CA2258797

申请日：1997-06-16

Applicant: BASF AG

Inventor： BROCKER FRANZ JOSEF ,  FLICK KLEMENS ,  POLANEK PETER ,  KAIBEL GERD ,  MULLER HANS-JOACHIM ,  MEYER GERALD ,  SCHWAB EKKEHARD ,  FREIRE ERDBRUGGER CRISTINA

IPC: B01D3/00 ,  B01D59/32 ,  B01J8/04 ,  B01J19/24 ,  B01J19/32 ,  B01J23/44 ,  B01J35/02 ,  B01J35/06 ,  B01J37/02 ,  B01J37/34 ,  C10G49/00 ,  C10G49/02

Abstract: The use of a catalyst package which can be produced by the vapour deposition and/or sputtering of at least one substance active as a catalyst and/or promotor on fabrics, knitted materials or foils as substrates in a catalytic distillation process in which a heterogeneous-catalytic reaction is combined with simultaneous distillation or rectification on the catalyst package.

公开(公告)号：PL364162A1

公开(公告)日：2004-12-13

申请号：PL36416202

申请日：2002-02-06

Applicant: BASF AG

Inventor： BOHNER GERD ,  KINDLER KLAUS ,  PAHL MELANIE ,  KAIBEL GERD

IPC: B01D3/40 ,  C07C7/08 ,  C07C11/167

Abstract: A process for recovering crude 1,3-butadiene from a C 4 fraction by extractive distillation using a selective solvent in a dividing wall column (TK) in which a dividing wall (T) is arranged in the longitudinal direction of the column to form a first subregion (A), a second subregion (B) and a lower common column region (C) and which is preceded by an extractive scrubbing column (K) is proposed.

公开(公告)号：NO20044447L

公开(公告)日：2004-11-18

申请号：NO20044447

申请日：2004-10-19

Applicant: BASF AG

Inventor： KAIBEL GERD ,  ZEHNER PETER ,  ROPER MICHAEL ,  SLANY MICHAEL ,  SCHAFER MARTIN ,  KARL JORN ,  ADAMI CHRISTOPH

IPC: C07C67/36

Abstract: The invention relates to a process for the preparation of methyl formate by reacting methanol with carbon monoxide at a pressure of from 0.5 to 10 MPa abs. and a temperature of from 50 to 150° C. in the presence of a metal alkoxide as catalyst in a reactor, in which a gas stream is withdrawn from the reactor, entrained methyl formate is removed from this gas stream by condensation, and all or some of the remaining gas stream is returned to the reactor as circulating-gas stream and a mean gas superficial velocity of from 1 to 20 cm/s is set in at least one region of the reactor in which the gas flows essentially in one direction.

公开(公告)号：AT276222T

公开(公告)日：2004-10-15

申请号：AT00990689

申请日：2000-12-08

Applicant: BASF AG

Inventor： GUTH JOSEF ,  FRIEDRICH HOLGER ,  STERZEL HANS-JOSEF ,  KAIBEL GERD ,  BURKART KIRSTEN ,  HOFFMANN ELKE

IPC: B01D1/28 ,  C07C29/70 ,  C07C29/80 ,  C07C31/30

Abstract: Alkali metal methoxides are prepared from aqueous alkali metal hydroxide, which may have been admixed with methanol, and methanol in a reaction column having at least 5, preferably from 15 to 30, theoretical plates between the feed point for the aqueous alkali metal hydroxide and the feed point for the methanol. The gaseous methanol/water mixture formed in the reaction is fractionated in a rectification column. In one variant of the invention, the trays chosen for the reaction column configured as a bubble cap tray, valve tray or sieve tray column are trays in which not more than 5%, preferably

公开(公告)号：BR0208959A

公开(公告)日：2004-04-27

申请号：BR0208959

申请日：2002-04-22

Applicant: BASF AG

Inventor： RAHN RALF-THOMAS ,  WECK ALEXANDER ,  KAIBEL GERD

IPC: C07D307/60 ,  C07C51/215 ,  C07C51/44 ,  C07C51/573 ,  C07C57/145 ,  C07C57/15

Abstract: In a process for purifying an organic solvent for the absorption of maleic anhydride from a gaseous mixture, in which the maleic anhydride is separated off from the solvent, a substream is taken from the solvent stream, this substream is distilled and returned to the solvent circuit, the proposed improvement comprises separating off a low-boiling fraction and a high-boiling fraction from the fraction consisting essentially of purified solvent and feeding the fraction consisting essentially of purified solvent back into the solvent stream.

公开(公告)号：CA2492155A1

公开(公告)日：2004-01-22

申请号：CA2492155

申请日：2003-07-07

Applicant: BASF AG

Inventor： KAIBEL GERD ,  DECKERT PETRA ,  DOMSCHKE THOMAS ,  MERGER MARTIN ,  SAUER FRIEDRICH

IPC: C07D307/62

Abstract: The invention relates to a method for the separation of ascorbic acid from a mixture containing ascorbic acid and 2-keto-L-gulonic acid in a polar, preferably aqueous solvent, by means of liquid/liquid extraction using an amide. The method preferably also comprises steps for the back-extraction of the ascorbic acid, recycling of the extraction solvent and/or the back extraction solvent and for isolation of the ascorbic acid from the back extraction solvent. The invention further relates to a method for the production of ascorbic acid from KGA and isolation of the ascorbic acid so produced.

公开(公告)号：BR0206867A

公开(公告)日：2004-01-20

申请号：BR0206867

申请日：2002-02-06

Applicant: BASF AG

Inventor： BOHNER GERD ,  KINDLER KLAUS ,  PAHL MELANIE ,  KAIBEL GERD

IPC: B01D3/40 ,  C07C7/08 ,  C07C11/167

Abstract: A process for recovering crude 1,3-butadiene from a C 4 fraction by extractive distillation using a selective solvent in a dividing wall column (TK) in which a dividing wall (T) is arranged in the longitudinal direction of the column to form a first subregion (A), a second subregion (B) and a lower common column region (C) and which is preceded by an extractive scrubbing column (K) is proposed.