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公开(公告)号：DE4432172A1
公开(公告)日：1996-03-14
申请号：DE4432172
申请日：1994-09-09
Applicant: BASF AG
Inventor： KAIBEL GERD DR , ENSEN HEINZ-FRIEDRICH
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公开(公告)号：DE3864295D1
公开(公告)日：1991-09-26
申请号：DE3864295
申请日：1988-03-23
Applicant: BASF AG
Inventor： KAIBEL GERD DR , HEFNER WERNER DR , KELLER PETER DR , DREWITZ WERNER
Abstract: Recovery of 1,3-butadiene (I) from a C4 hydrocarbon stream contg. (I) and small amts. of propyne and C5 hydrocarbons is effected by (a) subjecting the feed to extractive distn. with a selective solvent to obtain a crude butadiene stream, (b) feeding the crude butadiene vapour into a 1st distn. column, (c) passing an overhead liq. stream contg. (I) and lighter impurities from the 1st column to the middle of a 2nd column, (d) passing a liq. side stream contg. (I) and heavier impurities from the stripper section of the 1st column to the bottom of the 2nd column, (e) withdrawing a heavy impurity bottoms stream from the 1st column, (f) withdrawing a light impurity overhead stream from the 2nd column, (g) withdrawing (I) from the stripper section of the 2nd column, and (h) recycling the bottoms stream from the 2nd column to the 1st column in the vicinity of the side stream outlet.
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公开(公告)号：MY138058A
公开(公告)日：2009-04-30
申请号：MYPI20031440
申请日：2003-04-17
Applicant: BASF AG
Inventor： ADAMI CHRISTOPH DR , SLANY MICHAEL DR , KARL JOERN DR , KAIBEL GERD DR , SCHAFER MARTIN DR , ZEHNER PETER DR , PER MICHAEL R XD PROF DR
IPC: C07C67/36
Abstract: THE INVENTION RELATES TO A PROCESS FOR THE PREPARATION OF METHYL FORMATE BY REACTING METHANOL WOTH 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TEMPERATURE OF FROM 50 TO 150°C IN THE PRESENCE OF A METAL ALKOXIDE AS CATALYST IN A REACTOR, IN WHICH A GAS STREAM IS WITHDRAWN FROM THE REACTOR, ENTRAINED METHYL FORMATE IS REMOVED FROM THIS GAS STREAM BY CONDENSATION, AND ALL OR SOME OF THE REMAINING GAS STREAM IS RETURNED TO THE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.
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公开(公告)号：DE50112613D1
公开(公告)日：2007-07-26
申请号：DE50112613
申请日：2001-02-23
Applicant: BASF AG
Inventor： BURST WOLFRAM , HARTMANN HORST , KAIBEL GERD DR , HARMS GUIDO DR
IPC: B01D3/14
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75.发明专利
公开(公告)号：MY130209A
公开(公告)日：2007-06-29
申请号：MYPI20003508
申请日：2000-08-01
Applicant: BASF AG
Inventor： BROCKER FRANZ JOSEF DR , HAAKE MATHIAS DR , KAIBEL GERD DR , ROHRBACHER GERD , SCHWAB EKKEHARD DR , STROEZEL MANFRED
IPC: B01J10/00 , B01J23/42 , B01J8/00 , B01J19/24 , B01J19/26 , B01J32/00 , B01J35/04 , B01J35/06 , C07B61/00 , C07C5/10 , C07C13/18 , F28D9/04
Abstract: THE INVENTION RELATES TO A PROCESS AND APPARATUS FOR THE ISOTHERMAL OPERATION OF HETEROGENEOUSLY CATALYZED REACTIONS INVOLVING AT LEAST THREE PHASES IN THE FORM OF A GASEOUS PHASE, A LIQUID PHASE AND A SOLID PHASE.THE INVENTION PROVIDES APPARATUS FOR CARRYING OUT REACTIONS INVOLVING A GASEOUS PHASE, A LIQUID PHASE AND A SOLID PHASE, COMPRISING (I) A DISPERSING ELEMENT (6) FOR DISPERSING A GAS PHASE IN A LIQUID PHASE TO GENERATE A REACTION FLUID, (II) AT LEAST ONE REACTOR (1) WHICH POSSESSES AN INLET (31,41), AN OUTLET (43) AND A REACTOR SPACE BOUNDED BY HEAT-REMOVING WALLS ARE SPACED APART SUBSTANTIALLY UNIFORMLY ALONG THE MAIN FLOW AXIS OF THE REACTION FLUID, AND WHICH IS FITTED WITH CATALYST-COATED METAL FABRIC (20,32), AND (III) A FEED LINE (7) WHICH ROUTES THE REACTION FLUID FROM THE DISPERSING ELEMENT (6) TO THE REACTOR INLET (31,41) AND IS SUFFICIENTLY SHORT THAT THE DEGREE OF DISPERSION OF THE REACTION FLUID DOES NOT SUBSTANTIALLY CHANGE IN THE COURSE OF THE PASSAGE THROUGH THE FEED LINE.(FIG 1)
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Patent Agency Ranking
公开(公告)号：DE50209961D1
公开(公告)日：2007-05-31
申请号：DE50209961
申请日：2002-12-03
Applicant: BASF AG
Inventor： GOEBBEL HANS-GEORG DR , GERLACH TILL DR , FUNKE FRANK DR , EBEL KLAUS DR , UNVERRICHT SIGNE DR , KAIBEL GERD DR
IPC: C07C29/141 , C07B61/00 , C07C33/03
Abstract: Selective hydrogenation of alpha , beta -ethylenically unsaturated aldehydes (II) to corresponding unsaturated alcohols (I) comprises performing reaction in a reactor containing a liquid phase, suspended catalyst and optionally a gas phase, The liquid phase and gas phase (if present) are supplied to the reactor through a device (A) with openings or channels having a hydraulic diameter of 0.5-2 mm. Selective hydrogenation of unsaturated aldehydes of formula R R C=CR -CHO (II) to corresponding alcohols of formula R R C=CR -CH2OH (I) comprises performing the reaction in a reactor containing a liquid phase, suspended catalyst and optionally a gas phase. The liquid phase and optionally the gas phase are supplied to the reactor through a device (A) with openings or channels having a hydraulic diameter of 0.5-2 mm. R , R = H, optionally substituted mono- or polyunsaturated 1-20C alkyl (sic; some of the groups exemplified in the disclosure are saturated), optionally substituted aryl or optionally substituted heterocyclyl; R = H or 1-4C alkyl.
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公开(公告)号：MY128842A
公开(公告)日：2007-02-28
申请号：MYPI20024454
申请日：2002-11-27
Applicant: BASF AG
Inventor： SIRCH TILMAN , KAIBEL GERD DR , WARTINI ALEXANDER DR , DERNBACH MATTHIAS DR
IPC: C07C29/38 , C07C29/80 , C07B61/00 , C07C29/141 , C07C31/22
Abstract: TRIMETHYLOLPROPANE IS ISOLATED FROM A REACTION MIXTURE WHICH HAS BEEN OBTAINED BY REACTION OF N-BUTYRALDEHYDE WITH FORMALDEHDE IN THE PRESENCE OF A BASE AND, IF APPROPRIATE, HYDROGENATION OF THE RESULTING MIXTURE BY DISTILLING THE MIXTURE BY MEANS OF A DIVIDING WALL COLUMN OR A DISTILLATION COLUMN WITH A PRECOLUMN OR A DISTILLATION COLUMN WITH AN AFTER-COLUMN. THE PROCESS HAS LOW CAPITAL COSTS AND A LOW ENERGY CONSUMPTION AND GIVES REDUCED FORMATION OF HIGH-BOILING BY-PRODUCTS.
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公开(公告)号：AT257125T
公开(公告)日：2004-01-15
申请号：AT01102139
申请日：2001-02-01
Applicant: BASF AG
Inventor： WOSTBROCK KARL-HEINZ DR , KAIBEL GERD DR , TRAGUT CHRISTIAN , ANKEN GABRIELE
Abstract: Crude ammonia is separated into a low boiler fraction, a high boiler fraction and an intermediate-boiling pure fraction by continuous fractional distillation in a distillation apparatus configured either as a dividing wall column or as a system of thermally coupled distillation columns. In the process of the present invention, the low boiler fraction is taken off at the top of the distillation apparatus. The intermediate-boiling pure fraction is obtained at a side offtake which is preferably provided with droplet precipitators. In addition, the gas loading of the distillation column is restricted so that the operating pressure is in the range from 2 to 30 bar and the F factor does not exceed 2.0 Pa 0.5 .
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公开(公告)号：ES2192006T3
公开(公告)日：2003-09-16
申请号：ES99118458
申请日：1999-09-17
Applicant: BASF AG
Inventor： THERRE JORG DR , KAIBEL GERD DR , AQUILA WERNER DR , WEGNER GUNTER DR , FUCHS HARTWIG
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.
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公开(公告)号：SI0992477T1
公开(公告)日：2003-06-30
申请号：SI9930238
申请日：1999-09-17
Applicant: BASF AG
Inventor： THERRE JOERG DR , KAIBEL GERD DR , AQUILA WERNER DR , WEGNER GUENTER DR , FUCHS HARTWIG
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.
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