公开(公告)号：BR0115431A

公开(公告)日：2003-10-07

申请号：BR0115431

申请日：2001-11-15

Applicant: BASF AG

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

IPC: B01D3/14 ,  C07C7/04 ,  C07C11/167

Abstract: A process for obtaining pure 1,3-butadiene from crude 1,3-butadiene by distillation is carried out in a dividing wall column in which a dividing wall is located in the longitudinal direction of the column to form an upper common column region, a lower common column region, a feed section and an offtake section.

公开(公告)号：DE59906265D1

公开(公告)日：2003-08-14

申请号：DE59906265

申请日：1999-04-16

Applicant: BASF AG

Inventor： FISCHER ROLF ,  KAIBEL GERD ,  PINKOS ROLF ,  RAHN RALF-THOMAS

IPC: C07C29/149 ,  C07C29/17 ,  C07C31/20 ,  C07C51/16 ,  C07C67/03 ,  C07C67/08 ,  C07C69/60 ,  C07D307/08 ,  C07D307/32 ,  C07D307/33 ,  C07D315/00

Abstract: A process for preparing 1,4-butanediol and, if desired, gamma-butyrolactone and THF by oxidizing butane or benzene to form a product stream including maleic anhydride, absorbing maleic anhydride from the product stream with a high-boiling inert solvent in an absorption stage to give a liquid absorption product, esterifying the liquid absorption product with a C1-C5 esterifying alcohol in an esterification stage to form an esterification product comprising the corresponding diester and high-boiling inert solvent, then hydrogenating the esterification product to give a hydrogenation product which comprises the products of value, 1,4-butanediol and, if desired, gamma-butyrolactone and tetrahydrofuran and the esterifying alcohol and which is separated by distillation into the products of value and the esterifying alcohol, and recycling the esterifying alcohol to the esterification zone, which comprises separating the esterification product into the diester and the inert solvent by distillation under reduced pressure prior to the hydrogenation, recycling the inert solvent to the absorption stage, and hydrogenating the diester in the liquid phase over a fixed-bed catalyst.

公开(公告)号：DE10159816A1

公开(公告)日：2003-06-18

申请号：DE10159816

申请日：2001-12-06

Applicant: BASF AG

Inventor： KAIBEL GERD ,  MILLER CHRISTIAN ,  JANSEN HELMUT ,  KAIBEL BJOERN

IPC: B01J8/02 ,  B01J19/32 ,  B01J8/00 ,  B01J19/30 ,  C07B31/00 ,  C07B33/00

Abstract: Fixed bed reactor comprises a structured packing (1) forming intermediate chambers (3) inside the reactor. The quotient of the hydraulic diameter for the fluid stream through the packing and the equivalent diameter of catalyst particles (4) is in the region of 2-20, preferably 5-10. The catalyst particles are introduced into the intermediate chambers under the action of gravity, loosely distributed and removed. Preferred Features: The structured packing has a cross-channel structure, and comprises packing sheets for insertion along the longitudinal axis of the reactor. The packing has a reduced flow resistance on its surface.

公开(公告)号：DE59709121D1

公开(公告)日：2003-02-13

申请号：DE59709121

申请日：1997-10-15

Applicant: BASF AG

Inventor： FISCHER MARTIN ,  KAIBEL GERD ,  STAMMER ACHIM ,  FLICK KLEMENS ,  QUAISER STEFAN ,  HARDER WOLFGANG ,  MASSONNE KLEMENS

IPC: B01J8/04 ,  B01J19/24 ,  B01J19/26 ,  C01B15/029

Abstract: A process for preparing a hydrogen peroxide solution having a hydrogen peroxide content of not less than 2.5% by weight, which comprises continuously reacting hydrogen and oxygen in an aqueous, alcoholic or aqueous/alcoholic reaction medium in the presence of a catalyst containing palladium.

公开(公告)号：PT909204E

公开(公告)日：2003-01-31

申请号：PT97929190

申请日：1997-06-16

Applicant: BASF AG

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

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: A catalyst packing which can be produced by vapor deposition and/or sputtering of at least one substance active as catalyst and/or promotor onto woven or knitted fabrics or sheets as support material is used in a process for catalytic distillation in which a heterogeneously catalyzed reaction is combined with a simultaneous distillation or rectification over the catalyst packing.

公开(公告)号：CA2444804A1

公开(公告)日：2002-10-31

申请号：CA2444804

申请日：2002-04-22

Applicant: BASF AG

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

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

Abstract: The invention relates to an improved method for purifying an organic solvent for the purpose of absorbing a maleic acid anhydride from a gaseous mixture. The inventive method is characterized by removing the maleic acid anhydride from the solvent, removing a partial flow from the solvent flow, and distilling said partial flow and returning it to the solvent flow. A low- boiling fraction and a high-boiling fraction are removed from the fraction that substantially consists of purified solvent and the fraction that substantially consists of purified solvent is returned to the solvent flow.

公开(公告)号：CA2437396A1

公开(公告)日：2002-08-15

申请号：CA2437396

申请日：2002-02-06

Applicant: BASF AG

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

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

Abstract: The invention relates to a method for recovering crude 1,3-butadiene by extractive distillation from a C4 cut, using a selective solvent in a separation column (TK). In said column, a partition wall (T) is located in t he longitudinal direction of the column, forming a first sub-section (A), a second sub-section (B) and a lower common column zone (C). An extractive scrubber column (K) is connected upstream of the separation column.

公开(公告)号：DE10101942A1

公开(公告)日：2002-07-18

申请号：DE10101942

申请日：2001-01-17

Applicant: BASF AG

Inventor： BURST WOLFRAM ,  KAIBEL GERD ,  KUNTZE THOMAS ,  KOENIG JOSEF

IPC: B01D3/36 ,  C07C17/386 ,  C07C21/12 ,  C07C29/82 ,  C07C31/12 ,  B01D3/00 ,  C07B63/00 ,  C07C17/383 ,  C07C29/80 ,  C07C19/055

Abstract: Separating liquid azeotropic mixtures of at least two components (A) and (B) involves distillation in presence of an auxiliary substance (H) which forms lower-boiling binary azeotropes (AH) and (BH) with (A) and (B) respectively, to give a (B)-depleted fraction containing (A) plus (H), and an (A)-depleted fraction containing (B) plus (H).

公开(公告)号：DE10056841A1

公开(公告)日：2002-05-23

申请号：DE10056841

申请日：2000-11-16

Applicant: BASF AG

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

IPC: B01D3/14 ,  C07C7/04 ,  C07C11/167

Abstract: Distillation purification of butadiene comprises using partitioned column (1) having longitudinal partition (8) forming common upper section (9), common lower section (14), feed section (10) and discharge section (11). An Independent claim is also included for partitioned column for carrying out process, comprising 40-70 theoretical plates.

公开(公告)号：CA2428845A1

公开(公告)日：2002-05-23

申请号：CA2428845

申请日：2001-11-15

Applicant: BASF AG

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

IPC: B01D3/14 ,  C07C7/04 ,  C07C11/167 ,  B01D3/28

Abstract: The invention relates to a method for obtaining 1.3 pure butadiene from 1.3 raw butadiene by distillation. Said method is carried out in a separating wall column, wherein a separating wall is arranged in the longitudinal direction of the column in such a manner that it forms a common upper column area, a common lower column area, a feed part and a removal part.