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    83.
    发明专利
    未知

    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

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of from 50 to 150° C. in the presence of a metal alkoxide as catalyst in a reactor, in which a gas stream is withdrawn from the reactor, entrained methyl formate is removed from this gas stream by condensation, and all or some of the remaining gas stream is returned to the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

    84.
    发明专利
    未知

    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

    IPC: B01D1/28 ,  C07C29/70 ,  C07C29/80 ,  C07C31/30

    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

    85.
    发明专利
    未知

    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

    IPC: B01D3/14 ,  B01D3/32 ,  B01D3/42 ,  C07B63/00 ,  C10G7/00 ,  C10G7/02 ,  C10G7/12

    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).

    88.
    发明专利
    未知

    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.

    89.
    发明专利
    未知

    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

    IPC: B01D3/26 ,  B01D3/14 ,  B01D3/00

    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.

    90.
    发明专利
    未知

    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

    IPC: C07B61/00 ,  C07C29/141 ,  C07C33/03 ,  C07B41/02 ,  C07C33/00 ,  C07C33/02 ,  B01J8/22

    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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