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公开(公告)号:AT298330T
公开(公告)日:2005-07-15
申请号:AT01989492
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
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82.
公开(公告)号:MY119558A
公开(公告)日:2005-06-30
申请号:MYPI9701859
申请日:1997-04-29
Applicant: BASF AG
Inventor: KAIBEL GERD , STROEZEL MANFRED , RHEUDE UDO
Abstract: A DIVIDING WALL COLUMN (2) FOR SEPARATING A MIXTURE INTO 3 OR MORE FRACTIONS BY DISTILLATION IS DESCRIBED, WHERE AT LEAST ONE DIVIDING WALL (3) IS DETACHABLY ATTACHED WITHIN THE DIVIDING WALL COLUMN (2). (FIGURE 4)
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公开(公告)号:BR0308912A
公开(公告)日:2005-01-04
申请号:BR0308912
申请日:2003-04-15
Applicant: BASF AG
Inventor: ADAMI CHRISTOPH , SLANY MICHAEL , KARL J RN , KAIBEL GERD , SCHOFER MARTIN , ZEHNER PETER , PER MICHAEL R
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of from 50 to 150° C. in the presence of a metal alkoxide as catalyst in a reactor, in which a gas stream is withdrawn from the reactor, entrained methyl formate is removed from this gas stream by condensation, and all or some of the remaining gas stream is returned to the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.
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公开(公告)号:DE50007815D1
公开(公告)日:2004-10-21
申请号:DE50007815
申请日:2000-12-08
Applicant: BASF AG
Inventor: GUTH JOSEF , FRIEDRICH HOLGER , STERZEL HANS-JOSEF , KAIBEL GERD , BURKART KIRSTEN , HOFFMANN ELKE
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
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公开(公告)号:AT270134T
公开(公告)日:2004-07-15
申请号:AT01969739
申请日:2001-09-19
Applicant: BASF AG
Inventor: KAIBEL GERD , OOST CARSTEN , STROEZEL MANFRED , MEYER GERALD , TRUEBENBACH PETER , SARTOR KARL-HEINZ , HENERS JUERGEN
Abstract: A process is proposed for the separation of C 5+ cuts by distillation into a low-boiler (A), a medium-boiler (B) and a high-boiler fraction (C) in one or more dividing-wall columns (TK), in which a dividing wall (T) is arranged in the longitudinal direction of the column with formation of an upper, common column region ( 1 ), a lower, common column region ( 6 ), a feed part ( 2, 4 ) with rectifying section ( 2 ) and stripping section ( 4 ), and a withdrawal part ( 3, 5 ) with rectifying section ( 5 ) and stripping section ( 3 ), with feed of the C 5+ cut (A, B, C) into the central region of the feed part ( 2, 4 ), discharge of the high-boiler fraction (C) from the bottom of the column, discharge of the low-boiler fraction (A) via the top of the column, and discharge of the medium-boiler fraction (B) from the central region of the withdrawal part ( 3, 5 ), wherein the dividing ratio of the liquid reflux at the upper end of the dividing wall (T) is set in such a way that the proportion of high-boiling key components in the liquid reflux over the stripping section ( 3 ) of the withdrawal part at the upper end of the dividing wall (T) is from 10 to 80%, preferably from 30 to 50%, of the limit value allowed in the medium-boiler fraction (B), and wherein the heating power in the evaporator at the bottom of the dividing-wall column (TK) is set in such a way that the concentration of the low-boiling key components in the liquid at the lower end of the dividing wall (T) is from 10 to 80%, preferably from 30 to 50%, of the limit value allowed in the medium-boiler fraction (B).
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公开(公告)号:AU2003251465A1
公开(公告)日:2004-03-29
申请号:AU2003251465
申请日:2003-07-24
Applicant: BASF AG
Inventor: DOBLER WALTER , KAIBEL GERD , MILLER CHRISTIAN , OOST CARSTEN , STROEZEL MANFRED , HAAKE MATHIAS , AQUILA WERNER
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公开(公告)号:MX215973B
公开(公告)日:2003-08-21
申请号:MX9911269
申请日:1999-12-06
Applicant: BASF AG
Inventor: GROSCH GEORG HEINRICH , MULLER ULRICH , WALCH ANDREAS , RIEBER NORBERT , FISCHER MARTIN , QUAISER STEFAN , HARDER WOLFGANG , ELLER KARSTEN , BASSLER PETER , WENZEL ANNE , KAIBEL GERD , STAMMER ACHIM , HENKELMANN JOCHEM , BOTTCHER ARND , TELES JOAQUIM HENRIQUE , SCHULZ MICHAEL , TREIBER GERT
IPC: B01J29/90 , B01J38/14 , C07B41/00 , C07B61/00 , C07D301/12 , C07D301/19
Abstract: A process for oxidizing an organic compound having at least one C-C double bond or a mixture of two or more thereof comprises the following steps:(I) preparing a hydroperoxide,(II) reacting an organic compound having at least one C-C double bond or a mixture of two or more thereof with the hydroperoxide prepared in step (I) in the presence of a zeolite catalyst,(III) regenerating the at least partially deactivated zeolite catalyst used in step (II), and(IV) conducting the reaction of step (II) using a zeolite catalyst containing the catalyst regenerated in step (III).
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公开(公告)号:DE59906011D1
公开(公告)日:2003-07-24
申请号:DE59906011
申请日:1999-04-21
Applicant: BASF AG
Inventor: FISCHER ROLF , KAIBEL GERD , PINKOS ROLF , RAHN RALF-THOMAS
IPC: C07B61/00 , C07C29/136 , C07C29/149 , C07C29/88 , C07C31/20 , C07D307/08 , C07D307/33 , C07D315/00
Abstract: In a process for preparing 1,4-butanediol, tetrahydrofuran and gamma-butyrolactone by oxidation of butane to give a product stream comprising maleic anhydride, absorption of maleic anhydride from the product stream using a high-boiling alcohol to give a liquid absorption product comprising monoesters and diesters of maleic acid and also high-boiling alcohol, after-esterification of the liquid absorption product and subsequent hydrogenation of the after-esterified product in the liquid phase, the high-boiling alcohol is a polyhydric alcohol having a boiling point at atmospheric pressure of above 233° C. and the after-esterified product has an acid number of less than 30 mg KOH/g and a water content of less than 1% by weight.
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公开(公告)号:DE10163335A1
公开(公告)日:2003-07-10
申请号:DE10163335
申请日:2001-12-21
Applicant: BASF AG
Inventor: KAIBEL GERD , MILLER CHRISTIAN , KLAS KATRIN , KINDLER ALOIS , AQUILA WERNER , DOBLER WALTER , BREUER KLAUS , POMMER ACHIM , DIRNSTEINER THOMAS
Abstract: Distillation column has a dividing wall which divides it into inflow and extraction sections, and upper and lower column zones. The mixture for distillation comprises a vapor feed which enters between the upper and lower inflow sections, between which the side extraction point removes vapor. The inflow and the extraction zones are offset relative too the dividing wall. The vapor feed rate is equal in all zones of the column. The distillation column has a dividing wall (TW) which divides it into an inflow section (2,4), an extraction section (3,5), and common upper (1) and lower (6) column zones. The mixture for distillation is at least partially a vapor feed (F) which enters between the upper and lower inflow sections, and the side extraction point (B) removes vapor between the upper and lower extraction zones. The cross sectional surfaces of the inflow and the extraction zones are set by an offset in the dividing wall. The F-factor is equal in all the zones of the column, defined as the product of the gas flow speed in m/seconds multiplied with the square root of the gas density in kg/m3.
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公开(公告)号:DE10160143A1
公开(公告)日:2003-06-18
申请号:DE10160143
申请日:2001-12-07
Applicant: BASF AG
Inventor: GOEBBEL HANS-GEORG , GERLACH TILL , FUNKE FRANK , EBEL KLAUS , UNVERRICHT SIGNE , KAIBEL GERD
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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