公开(公告)号：DE2861041D1

公开(公告)日：1981-11-26

申请号：DE2861041

申请日：1978-12-14

Applicant: BASF AG

Inventor： HAMPRECHT GERHARD DR ,  FISCHER KARL DR ,  WOERZ OTTO DR

IPC: C07C29/00 ,  C07C27/00 ,  C07C29/09 ,  C07C29/12 ,  C07C29/132 ,  C07C31/20 ,  C07C35/02 ,  C07C67/00 ,  C07C239/00 ,  C07C273/18 ,  C07C275/04 ,  C07C275/24 ,  C07C275/28 ,  C07C127/00

公开(公告)号：DE2749754A1

公开(公告)日：1979-05-10

申请号：DE2749754

申请日：1977-11-07

Applicant: BASF AG

Inventor： FISCHER KARL DR ,  HIMMELE WALTER DR ,  KAIBEL GERD DIPL ING ,  BARL MANFRED DR ,  SCHNEIDER KURT DR

IPC: C07C68/06 ,  C07C68/08 ,  C07C69/96

Abstract: In the prodn. of carbonate esters (I) of the formula O=C(-O-R)2 (in which R is an organic radical with at least 2C) by ester interchange of dimethyl carbonate (II) with an alcohol R-OH, the MeOH formed is removed azeotropically with a 5-8C (cyclo)paraffin. The process is economical and does not necessitate the use of special conditions. (I) are intermediates for the prodn. of pharmaceuticals and plant protection agents.

公开(公告)号：DE4110457A1

公开(公告)日：1992-10-01

申请号：DE4110457

申请日：1991-03-30

Applicant: BASF AG

Inventor： MROSS WOLF DIETER DR ,  DOCKNER TONI DR ,  WOLFF DIETRICH DR ,  FASTRE GUSTAAF DIPL ING ,  FISCHER KARL DR

IPC: B01J27/10 ,  B01J27/122 ,  B01J27/132 ,  B01J27/138 ,  C07B61/00 ,  C07C209/36 ,  C07C211/44

Abstract: Aromatic amines are prepared by catalytic hydrogenation of nitroaromatics on hydrogenation catalysts at 160 to 450 DEG C and pressures of 1 to 50 bar, the hydrogenation catalyst containing 0.02 to 1% by weight of halogen and/or the reaction mixture containing 0.1 to 50 ppm of a halogen-containing organic compound, relative to the nitroaromatics employed.

公开(公告)号：DE3664633D1

公开(公告)日：1989-08-31

申请号：DE3664633

申请日：1986-02-03

Applicant: BASF AG

Inventor： ZIMMERLING DIETER ,  SCHMIDT JOHANNES E DR ,  SEUBERT ROLF DR ,  FISCHER KARL DR ,  SAUER FRIEDRICH

IPC: C07D307/60 ,  C07C51/573

Abstract: 1. A process for obtaining very pure maleic anhydride having a stable color by fractional distillation of crude maleic anhydride, wherein the maleic anhydride vapor which has been separated off from low boilers and high boilers and contains not less than 98% by weight of maleic anhydride is partially condensed so that from 0,5 to 15% by weight of the maleic anhydride vapor is separated off from the vapor phase as a liquid precondensate, and the remaining very pure maleic anhydride vapor is then completely condensed.

公开(公告)号：DE59203161D1

公开(公告)日：1995-09-14

申请号：DE59203161

申请日：1992-03-11

Applicant: BASF AG

Inventor： MROSS WOLF DIETER DR ,  DOCKNER TONI DR ,  WOLFF DIETRICH DR ,  FISCHER KARL DR ,  FASTRE GUSTAAF

IPC: B01J27/10 ,  B01J27/122 ,  B01J27/132 ,  B01J27/138 ,  C07B61/00 ,  C07C209/36 ,  C07C211/44

Abstract: Aromatic amines are prepared by catalytic hydrogenation of nitroaromatics on hydrogenation catalysts at 160 to 450 DEG C and pressures of 1 to 50 bar, the hydrogenation catalyst containing 0.02 to 1% by weight of halogen and/or the reaction mixture containing 0.1 to 50 ppm of a halogen-containing organic compound, relative to the nitroaromatics employed.

公开(公告)号：DE3160698D1

公开(公告)日：1983-09-01

申请号：DE3160698

申请日：1981-06-15

Applicant: BASF AG

Inventor： FISCHER ROLF DR ,  WEITZ HANS-MARTIN DR ,  FISCHER KARL DR

IPC: C07C5/41 ,  C07C15/073 ,  C07C15/08

公开(公告)号：MY137129A

公开(公告)日：2008-12-31

申请号：MYPI20003408

申请日：2000-07-26

Applicant: BASF AG

Inventor： AUER HEINZ ,  DAHLHAUS JURGEN DR ,  FISCHER KARL DR ,  HAMMER HANS ,  KELLENBENZ JOCHEN DR ,  SCHULZ MICHAEL DR ,  THIEL JOACHIM DR ,  VICARI MAXIMILIAN DR

IPC: B01D3/00 ,  B01J3/00 ,  B01J3/02 ,  B01J19/00 ,  C07B61/00 ,  C07C29/80 ,  C07C31/04 ,  C07C67/36 ,  C07C69/06

Abstract: A DESCRIPTION IS GIVEN OF A PROCESS FOR PREPARING METHYL FORMATE (16) BY REACTING EXCESS METHANOL (3) WITH CARBON MONOXIDE UNDER SUPERATMOSPHERIC PRESSURE AND AT ELEVATED TEMPERATURE IN THE PRESENCE OF ALKALI METAL METHOXIDE OR ALKALINE EARTH METAL METHOXIDE AS CATALYST IN A PRESSURE-RATED REACTOR (1), IN WHICH THE USE OF AT LEAST TWO REACTOR ELEMENTS, PREFERABLY OPERATED IN COUNTERCURRENT, AT ABOUT 100°C AND A PRESSURE OF ABOUT 10 MPA (100 BAR) IN COMBINATION WITH A SOLIDS-FREE DESALTING OF THE REACTION PRODUCT MAKES POSSIBLE VERY ECONOMICAL, LARGELY TROUBLE-FREE PRODUCTION OF METHYL FORMATE (16) IN ANY DESIRED QUALITY AND WITH A VERY GOOD PRODUCTION CAPACITY. FURTHERMORE, THE PROCESS FOR SOLIDS-FREE DESALTING ARID APPARATUSES (19) FOR CARRYING OUT THIS PROCESS ARE DESCRIBED.(SOLE

公开(公告)号：AT44956T

公开(公告)日：1989-08-15

申请号：AT86101378

申请日：1986-02-03

Applicant: BASF AG

Inventor： ZIMMERLING DIETER ,  SCHMIDT JOHANNES E DR ,  SEUBERT ROLF DR ,  FISCHER KARL DR ,  SAUER FRIEDRICH

IPC: C07D307/60 ,  C07C51/573

公开(公告)号：DE3504146A1

公开(公告)日：1986-08-07

申请号：DE3504146

申请日：1985-02-07

Applicant: BASF AG

Inventor： ZIMMERLING DIETER ,  SCHMIDT JOHANNES E DR ,  SEUBERT ROLF DR ,  FISCHER KARL DR ,  SAUER FRIEDRICH

IPC: C07D307/60 ,  C07C51/573

Abstract: 1. A process for obtaining very pure maleic anhydride having a stable color by fractional distillation of crude maleic anhydride, wherein the maleic anhydride vapor which has been separated off from low boilers and high boilers and contains not less than 98% by weight of maleic anhydride is partially condensed so that from 0,5 to 15% by weight of the maleic anhydride vapor is separated off from the vapor phase as a liquid precondensate, and the remaining very pure maleic anhydride vapor is then completely condensed.

公开(公告)号：DE3260698D1

公开(公告)日：1984-10-18

申请号：DE3260698

申请日：1982-03-30

Applicant: BASF AG

Inventor： FISCHER KARL DR ,  GRENACHER ARMIN VOLKER DR ,  HERR MANFRED ,  STROHMEYER MAX DR

IPC: B01J23/00 ,  B01J23/46 ,  C07B61/00 ,  C07C45/00 ,  C07C45/50 ,  C07C45/81 ,  C07C45/82 ,  C07C47/02 ,  C07C67/00

Abstract: Aldehydes are obtained from the gaseous product of the hydroformylation of olefinically unsaturated compounds using a rhodium catalyst by a process (cf. FIG. 2) in which (a) this gaseous product is introduced, without being cooled or depressured, into a distillation column D, (b) the top fraction from this column is cooled in a condenser K so that the greater part of the aldehydes contained therein is condensed, (c) the condensate is separated, in a separator A, into a gas phase and a liquid phase, (d) the gas phase from A, after waste gas has been separated off, is again brought to the hydroformylation pressure by means of a compressor P, and is returned to the reactor as a recycle gas, (e) the liquid phase from A is returned to D, and (f) the aldehydes are taken off from column D as liquid bottom products and/or as a vaporous side stream.