公开(公告)号：DE19840747A1

公开(公告)日：2000-03-09

申请号：DE19840747

申请日：1998-09-07

Applicant: BASF AG

Inventor： OOST CARSTEN ,  STROEZEL MANFRED ,  ETZRODT HEINZ ,  WELLER DIETMAR ,  BOCKSTIEGEL BERNHARD ,  REIMER KLAUS ,  KAIBEL GERD ,  JAEDICKE HAGEN

IPC: B01J31/14 ,  B01D3/00 ,  B01D3/14 ,  B01D3/32 ,  B01J10/00 ,  B01J19/24 ,  C07B61/00 ,  C07C45/67 ,  C07C45/68 ,  C07C45/82 ,  C07C49/203 ,  C07C67/54 ,  C07C69/72 ,  C07C45/65 ,  C07C49/255

Abstract: Continuous production of 5-alken-2-one or 3,5-alkadien-2-one derivatives (I) by reacting a 1-alken-3-ol or 1-alkyn-3-ol derivative (II) with an alkyl acetoacetate (III) in a fractionation column to form an acetoacetate and alcohol involves (i) removing the alcohol and (ii) contacting the acetoacetate with catalyst in the lower part or bottom of the column to form (I). Continuous production of unsaturated ketones of formula (I) by reacting an unsaturated alcohol of formula (II) with an alkyl acetoacetate of formula (III) in the presence of an organoaluminum catalyst is carried out by: (a) reacting (II) with (III) on the plates of a fractionation column to form the acetoacetate of (II) and an alcohol of formula R OH; (b) removing the alcohol in the overhead stream from the column; (c) contacting the acetoacetate of (II) with the catalyst in the lower part or bottom of the column to form (I) and CO2; (d) removing the CO2 in the overhead stream from the column; and (e) withdrawing (I) in the bottoms stream from the column. R = 1-4C alkyl; R = 1-37C (un)saturated aliphatic hydrocarbyl (optionally substituted by methoxy groups), 4-12C cycloalkyl or 5-30C cycloalkylalkyl; and R = 1-5C alkyl.

公开(公告)号：CA2329477A1

公开(公告)日：1999-11-04

申请号：CA2329477

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: The invention relates to a method for producing 1,4-butanediol and possibly .gamma.-butyrolactone and tetrahydrofurane by oxidation of butane or benzol into a product flow containing maleic anhydride, absorption of maleic anhydride from the product flow by means of an inert, high-boiling solvent in an absorption stage, which yields a liquid absorption product, and esterification of said liquid absorption product with a C1-C5 esterification alcohol in an esterification step, yielding an esterification product containing the corresponding diester and high-boiling inert solvent. This is followed by hydrogenation of the esterification product, which results in an hydrogenation product containing the products 1,4-butanediol and optionally .gamma.-butyrolactone and tetrahydrofurane as well as the esterification alcohol. The hydrogenation product is separated by distillation into the products and the esterification alcohol and the esterification alcohol is returned to the esterification zone. Prior to hydrogenation the esterification product is separated by distillation under reduced pressured into the diester and the inert solvent, the inert solvent is returned to the absorption stage and the diester is hydrogenated in the liquid phase on a fixed-bed catalyst.

公开(公告)号：AU8537998A

公开(公告)日：1999-01-25

申请号：AU8537998

申请日：1998-06-15

Applicant: BASF AG

Inventor： MASSONNE KLEMENS ,  SCHUBERT ERICH ,  KRUG GEORG ,  PINKOS ROLF ,  KARCHER MICHAEL ,  KAIBEL GERD

IPC: B01D61/14 ,  B01D63/06 ,  C07C29/17 ,  C07C29/76 ,  C07C31/20

公开(公告)号：DE19651325A1

公开(公告)日：1998-06-18

申请号：DE19651325

申请日：1996-12-11

Applicant: BASF AG

Inventor： GROENING CARSTEN ,  THERRE JOERG ,  KAIBEL GERD ,  EBEL KLAUS

IPC: B01J31/08 ,  C07B61/00 ,  C07C45/39 ,  C07C45/52 ,  C07C45/71 ,  C07C47/198 ,  C07C45/64 ,  C07C45/84

Abstract: Preparation of glyoxal monoacetals of formula (I) comprises reacting a mixture of glyoxal and glyoxal bis-acetals of formula (II) with an excess of alcohol(s) R OH and/or R OH in the presence of an acid catalyst until equilibrium is attained. R1,R2 = 1-4C alkyl or 2-4C alkenyl, preferably methyl.

公开(公告)号：CA2218137A1

公开(公告)日：1998-05-12

申请号：CA2218137

申请日：1997-11-04

Applicant: BASF AG

Inventor： FLICK KLEMENS ,  AQUILA WERNER ,  BR CKER FRANZ JOSEF ,  LANGGUTH ERNST ,  KAIBEL GERD

IPC: B01J23/44 ,  B01J27/057 ,  B01J35/10 ,  C07B35/08 ,  C07B61/00 ,  C07C29/56 ,  C07C33/03 ,  C07C41/32 ,  C07C43/15 ,  C07C67/293 ,  C07C69/145 ,  C07C33/025 ,  B01J21/08

Abstract: The fixed-bed catalyst comprises palladium and selenium or tellurium or a mixture of selenium and tellurium on a silicon dioxide support and has a BET surface area of from 80 to 380 m2/g and a pore volume of from 0.6 to 0.95 cm3/g in the pore diameter range from 3 nm to 300 .mu.m, with from 80 to 95% of the pore volume being in the pore diameter range from 10 to 100 nm. It is prepared by impregnating a silicon dioxide support with a solution of a palladium compound and a selenium compound or tellurium compound or a mixture of a selenium compound and a tellurium compound, drying it and reducing it in the presence of hydrogen. The catalyst is used, in particular, for isomerizing 3-buten-1-ol compounds.

公开(公告)号：CA2203821A1

公开(公告)日：1997-10-30

申请号：CA2203821

申请日：1997-04-25

Applicant: BASF AG

Inventor： KAIBEL GERD ,  RHEUDE UDO ,  STROEZEL MANFRED

IPC: B01D3/14 ,  B01D3/16 ,  B01D3/32 ,  B01J19/32 ,  B01D3/26

Abstract: A dividing wall column for separating a mixture into 3 or more fractions by distillation is described, where at least one dividing wall is detachably attached within the dividing wall column.

公开(公告)号：CA2201014A1

公开(公告)日：1997-09-26

申请号：CA2201014

申请日：1997-03-25

Applicant: BROCKER FRANZ JOSEF ,  KAIBEL GERD ,  STROEZEL MANFRED ,  BASF AG

Inventor： KAIBEL GERD ,  STROEZEL MANFRED ,  BROCKER FRANZ JOSEF

IPC: B01F5/06 ,  B01J8/00 ,  B01J8/06 ,  B01J8/18 ,  B01J8/20 ,  B01J8/22 ,  B01J8/34 ,  B01J19/24 ,  C07C45/62

Abstract: Catalytic reactions are carried out in a reactor which contains a liquid phase in which at least one catalyst is suspended, and which may additionally contain a gas phase, by a process in which the liquid phase and, if present, also the gas phase are fed, at least partly, through an apparatus having orifices or channels in the reactor, the hydraulic diameter of which orifices or channels is from 0.5 to 20 mm, preferably from 1 to 10 mm, particularly preferably from 1 to 3 mm.

公开(公告)号：AU7627296A

公开(公告)日：1997-06-19

申请号：AU7627296

申请日：1996-11-18

Applicant: BASF AG

Inventor： BROCKER FRANZ JOSEF ,  FISCHER ROLF ,  KAIBEL GERD ,  PINKOS ROLF

IPC: B01J37/02 ,  C07D307/08 ,  C23C14/16

Abstract: PCT No. PCT/EP96/05071 Sec. 371 Date May 22, 1998 Sec. 102(e) Date May 22, 1998 PCT Filed Nov. 18, 1996 PCT Pub. No. WO97/19939 PCT Pub. Date Jun. 5, 1997In a process for the catalytic hydrogenation of 2,5- and 2,3-dihydrofuran with hydrogen to give tetrahydrofuran, use is made of a catalyst in which a metal or a plurality of metals have been deposited by vapor deposition or sputtering on a metal wire mesh or a metal foil as support.

公开(公告)号：DE3510365C2

公开(公告)日：1996-09-12

申请号：DE3510365

申请日：1985-03-22

Applicant: BASF AG

Inventor： KAIBEL GERD ,  FICK HANS-HEINRICH DR ,  MITTELSTAEDT ERICH ,  HETTICH WERNER

IPC: B01D3/14 ,  B01D3/28 ,  B01D3/32

公开(公告)号：FI77019C

公开(公告)日：1989-01-10

申请号：FI820118

申请日：1982-01-14

Applicant: BASF AG

Inventor： BOTT KASPAR ,  KAIBEL GERD ,  HOFFMANN HERWIG ,  IRNICH RUDOLF ,  KRATZER OTTO

IPC: C07C231/02 ,  C07C20060101 ,  C07C67/00 ,  C07C231/00 ,  C07C233/03 ,  C07C103/12 ,  C07C102/06