公开(公告)号：DE10223973A1

公开(公告)日：2003-12-11

申请号：DE10223973

申请日：2002-05-29

Applicant: BASF AG

Inventor： GOEBBEL HANS-GEORG ,  KAIBEL GERD ,  WEGNER GUENTER ,  FUCHS HARTWIG ,  SCHULTZ PETER

IPC: C07C29/80 ,  C07C29/56 ,  C07C33/03

Abstract: Continuous isolation of an allylic alcohol (I) from a crude mixture (A) by rectification. Continuous isolation of an allylic alcohol (I) from a crude mixture (A) by rectification involves: (i) supplying (A) at the side of a supply column (SC) with an amplifier part above and a distillation part below the inlet site; (ii) providing an upper collection column (UCC) with a condenser at the upper end (linked to the amplifier part) and a lower collection column (LCC) with a heater at the lower end (linked to the distillation part); (iii) providing a withdrawal column (WC) linked to UCC and LCC; and (iv) recovering (I) as a side stream from WC, lower boilers from the top of UCC and lower boilers from the sump of LCC.

公开(公告)号：DE10222128A1

公开(公告)日：2003-11-27

申请号：DE10222128

申请日：2002-05-17

Applicant: BASF AG

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

IPC: B01D3/20 ,  B01D3/00

公开(公告)号：DE10217528A1

公开(公告)日：2003-11-06

申请号：DE10217528

申请日：2002-04-19

Applicant: BASF AG

Inventor： ADAMI CHRISTOPH ,  SLANY MICHAEL ,  KARL JOERN ,  KAIBEL GERD ,  SCHAEFER MARTIN ,  ZEHNER PETER ,  ROEPER MICHAEL

IPC: C07C67/36 ,  C07C67/00 ,  C07C69/06

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of from 50 to 150° C. in the presence of a metal alkoxide as catalyst in a reactor, in which a gas stream is withdrawn from the reactor, entrained methyl formate is removed from this gas stream by condensation, and all or some of the remaining gas stream is returned to the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：AU2003226810A1

公开(公告)日：2003-11-03

申请号：AU2003226810

申请日：2003-04-15

Applicant: BASF AG

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

IPC: C07C67/36 ,  C07C69/06

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：HU0301850A2

公开(公告)日：2003-08-28

申请号：HU0301850

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

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：PT992477E

公开(公告)日：2003-06-30

申请号：PT99118458

申请日：1999-09-17

Applicant: BASF AG

Inventor： THERRE JORG ,  KAIBEL GERD ,  AQUILA WERNER ,  FUCHS HARTWIG ,  WEGNER GUNTER

IPC: C07B61/00 ,  C07C41/28 ,  B01J27/16 ,  C07C43/15 ,  C07C45/37 ,  C07C45/51 ,  C07C45/54 ,  C07C45/67 ,  C07C47/21 ,  C07C49/203

Abstract: Preparation of citral (I) comprises thermal decomposition of 3-methyl-2-buten-1-al-diprenylacetal and rearrangement of obtained intermediates cis/trans-prenyl-(methyl-butadienyl)-ether (IV) and 2,4,4-trimethyl-3-formyl-1,5-hexadiene (V). (IV) and (V) are continuously distilled off and converted into (I) before or after removal of by-product prenol. Preparation of 3,7-dimethyl-2,6-octadien-1-al (citral) of formula (I) comprises: (1) thermal decomposition of 3-methyl-2-buten-1-al-diprenylacetal of formula (II) optionally in the presence of an acid catalyst to split off 3-methyl-buten-1-ol (prenol) of formula (III) and form cis/trans-prenyl-(methyl-butadienyl)-ether of formula (IV); (2) Claisen rearrangement of (IV) to give 2,4,4-trimethyl-3-formyl-1,5-hexadiene of formula (V); and (3) Cope rearrangement of (V) to form (I). The transitionally formed (IV) and (V) and the desired citral as well as the prenol (III) are continuously distilled out of the reaction mixture and (IV) and (V), before or after distillative separation of (III) and optional by-products, are subjected to rearrangement to form (I) at 100-200 degrees C.

公开(公告)号：DE10160180A1

公开(公告)日：2003-06-18

申请号：DE10160180

申请日：2001-12-07

Applicant: BASF AG

Inventor： SIRCH TILMAN ,  KAIBEL GERD ,  WARTINI ALEXANDER ,  DERNBACH MATTHIAS

IPC: C07C29/38 ,  C07B61/00 ,  C07C29/141 ,  C07C29/80 ,  C07C31/22

Abstract: Trimethylol propane is isolated from a reaction mixture, obtained by reaction of n-butyraldehyde with formaldehyde in the presence of a base and optional hydrogenation of the mixture obtained. The mixture is distilled using a partition column or a distillation column with a pre-column or a distillation column with a post-column. The method is characterised by a low investment and energy cost and the reduced formation of high-boiling by-products.

公开(公告)号：DE10159821A1

公开(公告)日：2003-06-18

申请号：DE10159821

申请日：2001-12-06

Applicant: BASF AG

Inventor： KAIBEL GERD ,  MILLER CHRISTIAN ,  DOBLER WALTER ,  DIRNSTEINER THOMAS ,  SIGL MARCUS ,  JANSEN HELMUT ,  KAIBEL BJOERN

IPC: B01D3/00 ,  B01J8/00 ,  B01J8/02 ,  B01J8/04 ,  B01J8/12 ,  B01J19/24 ,  B01D3/26 ,  B01J19/32 ,  B01J21/04 ,  B01J23/10 ,  B01J35/02 ,  C07B61/00 ,  C07C45/72 ,  C07C45/74 ,  C07C49/203 ,  B01D3/34 ,  B01J19/30

Abstract: The invention relates to a column for carrying out reactive distillations in the presence of a heterogeneous particulate catalyst, with a packing or filling bodies, which form cavities in the column interior. The quotient for the hydraulic diameter for the gas stream through the packing or filling bodies and the equivalent diameter of the catalyst particles lies in the range of 2 to 20, preferably in the range of 5 to 10, whereby the catalyst particles are introduced loose into the cavities, distributed and removed under the influence of gravity.

公开(公告)号：DE10135490A1

公开(公告)日：2003-01-30

申请号：DE10135490

申请日：2001-07-20

Applicant: BASF AG

Inventor： BOETTCHER ARND ,  SCHWAB EKKEHARD ,  KAESTNER RALF ,  HENKELMANN JOCHEM ,  KAIBEL GERD ,  LAIB HEINRICH

IPC: C07C5/10 ,  C07B35/02 ,  C07C13/18 ,  B01J23/46

Abstract: The invention relates to a method for hydrogenating substituted or 5 unsubstituted mononuclear or multinuclear aromatics to form corresponding cycloaliphatics, especially benzole to form cyclohexane, by bringing the aromatic into contact with a gas containing hydrogen in the presence of a catalyst, using hydrogen containing residual gases.

公开(公告)号：AT230705T

公开(公告)日：2003-01-15

申请号：AT97945830

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.