公开(公告)号：DE59104800D1

公开(公告)日：1995-04-06

申请号：DE59104800

申请日：1991-12-19

Applicant: BASF AG

Inventor： FRANK GERHARD DR ,  HERRMANN GUENTER DR ,  BUERGER GERT DR ,  MANEGOLD JOST HENRICH DR ,  KARBACH STEFAN DR ,  SCHMITZ RUEDIGER

IPC: B01J23/847 ,  C07B61/00 ,  C07C51/31 ,  C07C51/42 ,  C07C51/44 ,  C07C51/47 ,  C07C55/14

Abstract: A process for working up mother liquors resulting from the preparation of adipic acid by oxidation of cyclohexanol or cyclohexanone or mixtures thereof with nitric acid entails removal of nitric acid by azeotropic distillation with water, heating the resulting melt at from 130 DEG to 180 DEG C. and then dissolving it in water, treating the aqueous solution with cation exchangers, subsequently again evaporating off the water and heating the resulting dicarboxylic acid melt at from 200 DEG to 240 DEG C. and then obtaining a mixture of dicarboxylic acids by distillation.

公开(公告)号：CH499962A

公开(公告)日：1970-12-15

申请号：CH483268

申请日：1968-04-02

Applicant: BASF AG

Inventor： ZEIDLER ADOLF DR ,  FISCHER ADOLF DR ,  BUERGER GERT DR ,  MERGER FRANZ DR

IPC: A01N20060101 ,  C07D20060101 ,  A01N9/22

公开(公告)号：SG155494G

公开(公告)日：1995-04-28

申请号：SG155494

申请日：1994-10-21

Applicant: BASF AG

Inventor： AICHINGER HEINRICH DR ,  BOEHNING KARL-HEINZ DR ,  HERZOG KLAUS DR ,  WISTUBA HERMANN DR ,  BUERGER GERT DR ,  SCHWARZMANN MATTHIAS DR ,  HERRMANN GUENTER DR

IPC: B01D53/94 ,  B01D53/86 ,  B01J23/50 ,  B01J35/10 ,  B01D53/36

Abstract: In a catalyst for the decomposition of nitrous oxide, pure or in gaseous mixtures, metallic silver is applied to an alumina support having a BET surface area of 5 to 25 m /g.

公开(公告)号：DE4128629A1

公开(公告)日：1993-03-04

申请号：DE4128629

申请日：1991-08-29

Applicant: BASF AG

Inventor： FETZER THOMAS DR ,  BUECHELE WOLFGANG DR ,  WISTUBA HERMANN DR ,  WITTE CLAUS DR ,  BUERGER GERT DR ,  HERRMANN GUENTER DR

IPC: B01D53/56 ,  B01D53/86 ,  B01D53/94 ,  B01J23/50 ,  B01J35/10

Abstract: Disclosed is a silver-containing carrier catalyst for the decomposition of nitrous oxide present as the pure gas or in gas mixtures. The carrier catalyst includes an aluminium oxide carrier with a BET surface area of 26 to 350 m /g. Also disclosed is a method in which the carrier catalyst proposed is used for the selective catalytic decomposition of nitrous oxide present as the pure gas or in gas mixtures at elevated temperatures.

公开(公告)号：DE2510994A1

公开(公告)日：1976-09-23

申请号：DE2510994

申请日：1975-03-13

Applicant: BASF AG

Inventor： BLECHSCHMITT KURT ,  REUTER PETER DR ,  WIRTH FRIEDRICH DR ,  BUERGER GERT DR ,  SEUBERT ROLF DR

IPC: C07D307/89 ,  B01J23/22 ,  B01J35/02 ,  B01J35/04 ,  B01J37/02 ,  C07B61/00 ,  C07C51/265 ,  C07C51/31

Abstract: A supported catalyst containing vanadium and titanium, comprising a ring-shaped carrier having an external diameter of from 7.3 to 8.6 mm, a length of from 5.3 to 7 mm and a wall thickness of from 0.1 to 2 mm, and an active composition, applied thereto, of from 1 to 30 per cent by weight of vanadium pentoxide and from 70 to 99 per cent by weight of titanium dioxide and/or zirconium dioxide.

公开(公告)号：DK0475173T3

公开(公告)日：1994-03-28

申请号：DK91114242

申请日：1991-08-24

Applicant: BASF AG

Inventor： SCHWARZMANN MATTHIAS DR ,  AICHINGER HEINRICH DR ,  BOEHNING KARL-HEINZ DR ,  HERZOG KLAUS DR ,  WISTUBA HERMANN DR ,  BUERGER GERT DR ,  HERRMANN GUENTER DR

IPC: B01D53/94 ,  B01D53/86 ,  B01J23/50 ,  B01J35/10 ,  B01D53/36

Abstract: In a catalyst for the decomposition of nitrous oxide, pure or in gaseous mixtures, metallic silver is applied to an alumina support having a BET surface area of 5 to 25 m /g.

公开(公告)号：DE4100505A1

公开(公告)日：1992-07-16

申请号：DE4100505

申请日：1991-01-10

Applicant: BASF AG

Inventor： FRANK GERHARD DR ,  HERRMANN GUENTER DR ,  BUERGER GERT DR ,  MANEGOLD JOST HENRICH DR ,  KARBACH STEFAN DR ,  SCHMITZ RUEDIGER

IPC: B01J23/847 ,  C07B61/00 ,  C07C51/31 ,  C07C51/42 ,  C07C51/44 ,  C07C51/47 ,  C07C55/14

Abstract: A process for working up mother liquors resulting from the preparation of adipic acid by oxidation of cyclohexanol or cyclohexanone or mixtures thereof with nitric acid entails removal of nitric acid by azeotropic distillation with water, heating the resulting melt at from 130 DEG to 180 DEG C. and then dissolving it in water, treating the aqueous solution with cation exchangers, subsequently again evaporating off the water and heating the resulting dicarboxylic acid melt at from 200 DEG to 240 DEG C. and then obtaining a mixture of dicarboxylic acids by distillation.

公开(公告)号：DE3522215A1

公开(公告)日：1987-01-02

申请号：DE3522215

申请日：1985-06-21

Applicant: BASF AG

Inventor： PILZ GEORG ,  THIEL GERHARD ,  BARL MANFRED DR ,  BUERGER GERT DR

IPC: C07C51/00 ,  C07C51/41 ,  C07C55/02 ,  C07C55/12 ,  C07C55/14 ,  C07C55/20 ,  C07C55/21 ,  C07C63/15 ,  C07C63/24 ,  C07C63/28 ,  C07C67/00 ,  C07C213/00 ,  C07C217/08 ,  C08G69/00 ,  C08G69/40 ,  C07C93/04 ,  C07C63/26 ,  C08G69/26

Abstract: Salts of oxaalkylenediamines of the formula I H2N-(R1-O)n-R2-NH2 I where R1 and R2 may be identical or different and are each alkylene of 2 to 4 carbon atoms and n is an integer from 1 to 3, and alkanedicarboxylic acids of 4 to 12 carbon atoms, terephthalic acid or isophthalic acid, which contain hydrazine, their preparation, and nylons prepared from them.

公开(公告)号：DE19533715A1

公开(公告)日：1997-03-13

申请号：DE19533715

申请日：1995-09-12

Applicant: BASF AG

Inventor： FETZER THOMAS DR ,  WAGNER ECKHART DR ,  SCHUMACHER VOLKER DR ,  BUERGER GERT DR ,  ROETH EMIL DIPL ING ,  RUPPEL WILHELM DR ,  WISTUBA HERMANN DR ,  OTTO BERNHARD DR

IPC: B01D53/56 ,  B01D53/77 ,  B01D53/86 ,  C01B21/38 ,  C01B21/40

Abstract: The invention concerns a method of removing nitrogen oxides from a gas flow. The gas flow is guided: (A) through a stage in which the nitrogen oxides, apart from N2O, are absorbed in an absorption agent, or the nitrogen oxides, apart from N2O, are reacted with an absorption agent at a pressure of between 1.5 and 20 bar; and (B) through a stage for reducing the N2O content, preferably using the pressure level prevailing in step (A). The invention further concerns a device for carrying out this method and the use thereof.

公开(公告)号：ES2069811T3

公开(公告)日：1995-05-16

申请号：ES91121767

申请日：1991-12-19

Applicant: BASF AG

Inventor： FRANK GERHARD DR ,  HERRMANN GUENTER DR ,  BUERGER GERT DR ,  MANEGOLD JOST HENRICH DR ,  KARBACH STEFAN DR ,  SCHMITZ RUEDIGER

IPC: B01J23/847 ,  C07B61/00 ,  C07C51/31 ,  C07C51/42 ,  C07C51/44 ,  C07C51/47 ,  C07C55/14

Abstract: A process for working up mother liquors resulting from the preparation of adipic acid by oxidation of cyclohexanol or cyclohexanone or mixtures thereof with nitric acid entails removal of nitric acid by azeotropic distillation with water, heating the resulting melt at from 130 DEG to 180 DEG C. and then dissolving it in water, treating the aqueous solution with cation exchangers, subsequently again evaporating off the water and heating the resulting dicarboxylic acid melt at from 200 DEG to 240 DEG C. and then obtaining a mixture of dicarboxylic acids by distillation.