公开(公告)号：MX9602508A

公开(公告)日：1997-04-30

申请号：MX9602508

申请日：1996-06-27

Applicant: BASF AG

Inventor： SCHERZER DIETRICH ,  BRUCHMANN BERND ,  MINGES ROLAND ,  KELLER PETER ,  PEE WILLY VAN ,  HEIDER WOLFGANG ,  POHL SIEGMUND ,  OTTO BERNHARD ,  JACOBS PAUL

IPC: C07C263/10 ,  C07C263/20 ,  C07C265/12 ,  C07C265/14 ,  C08G18/02

Abstract: Un proceso para preparar mezclas de diisocianatos de difenilmetano y poliisocianatos de polifenilpolimetileno que tienen un numero de color de yodo reducido y un contenido de cloro reducido haciendo reaccionar las mezclas correspondientes de difenilmetandiaminas y polifenilpolimetilenpoliaminas con fosgeno en presencia de por lo menos un solvente orgánico inerte a temperatura elevada, separar el exceso de fosgeno y el solvente después de completarse la fosgenacion y tratar térmicamente el producto de reaccion, en donde una mezcla de agua y por lo menos un alcohol de polioxialquileno monohídrico o polihídrico o una mezcla de los mismos se incorpora en una cantidad efectiva en la mezcla de reaccion después de que se completa la fosgenacion, en presencia o ausencia de fosgeno.

公开(公告)号：AT151309T

公开(公告)日：1997-04-15

申请号：AT94905047

申请日：1994-01-13

Applicant: BASF AG

Inventor： FETZER THOMAS ,  BUECHELE WOLFGANG ,  WISTUBA HERMANN ,  OTTO BERNHARD ,  BUERGER GERT ,  PIJL PAUL

IPC: B01D53/56 ,  B01D53/86 ,  B01D53/94 ,  B01J21/04 ,  B01J23/00 ,  B01J23/72 ,  B01J23/76 ,  B01J23/78 ,  B01J23/80 ,  B01J35/10 ,  C07C51/487

Abstract: PCT No. PCT/EP94/00081 Sec. 371 Date Mar. 24, 1995 Sec. 102(e) Date Mar. 24, 1995 PCT Filed Jan. 13, 1994 PCT Pub. No. WO94/16798 PCT Pub. Date Aug. 4, 1994A process for the catalytic decomposition of dinitrogen monoxide in a gas stream by contacting the gas stream at temperatures of 200 DEG -900 DEG C. and pressures of 0.1 to 20 bar with a catalyst free of noble metals, the catalyst being prepared by combining a spinel CuAl2O3 with another spinel-forming metal component selected from the group consisting of tin, lead, zinc, magnesium, calcium, strontium and barium or mixtures thereof in elemental form or as an oxide or salt, and calcining at temperatures of 300 DEG -1300 DEG C. and under pressures of 0.1-200 bar in order to at least partially liberate the copper from the spinel by replacement with the other metal component.

公开(公告)号：CA2229416A1

公开(公告)日：1997-03-02

申请号：CA2229416

申请日：1996-09-10

Applicant: BASF AG

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

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：NO952886A

公开(公告)日：1995-07-20

申请号：NO952886

申请日：1995-07-20

Applicant: BASF AG

Inventor： FETZNER THOMAS ,  BUECHELE WOLFGANG ,  WISTUBA HERMANN ,  OTTO BERNHARD ,  BUERGER GERT ,  IRGANG MATTHIAS

IPC: B01J23/76 ,  B01J23/00 ,  B01J23/80 ,  B01J37/08 ,  C07B61/00 ,  C07C29/153 ,  C07C29/154 ,  C07C29/156 ,  C07C31/04

CPC classification number: C07C29/154 ,  B01J23/002 ,  B01J23/005 ,  B01J37/08 ,  B01J2523/00 ,  Y02P20/52 ,  B01J2523/17 ,  B01J2523/31 ,  C07C31/04

公开(公告)号：FI953507A

公开(公告)日：1995-07-20

申请号：FI953507

申请日：1995-07-20

Applicant: BASF AG

Inventor： FETZER THOMAS ,  BUECHELE WOLFGANG ,  IRGANG MATTHIAS ,  OTTO BERNHARD ,  WISTUBA HERMANN ,  BUERGER GERT

IPC: B01J23/00 ,  B01J23/76 ,  B01J23/80 ,  B01J37/08 ,  C07B61/00 ,  C07C29/153 ,  C07C29/154 ,  C07C29/156 ,  C07C31/04 ,  B01J

Abstract: Catalysts prepared by combining M-Al2O4 where M is an element of Group Ib, VIIb or VIII of the Periodic Table of the Elements with tin, lead, an element of group IIa or IIb of the Periodic Table of the Elements as oxide or salt or in elemental form and calcining at 300-1300 DEG C. under 0.1-200 bar and the process for preparing them.

公开(公告)号：AU5882894A

公开(公告)日：1994-08-15

申请号：AU5882894

申请日：1994-01-13

Applicant: BASF AG

Inventor： FETZER THOMAS ,  BUECHELE WOLFGANG ,  IRGANG MATTHIAS ,  OTTO BERNHARD ,  WISTUBA HERMANN ,  BUERGER GERT

IPC: B01J23/76 ,  B01J23/00 ,  B01J23/80 ,  B01J37/08 ,  C07B61/00 ,  C07C29/153 ,  C07C29/154 ,  C07C29/156 ,  C07C31/04

Abstract: Catalysts prepared by combining M-Al2O4 where M is an element of Group Ib, VIIb or VIII of the Periodic Table of the Elements with tin, lead, an element of group IIa or IIb of the Periodic Table of the Elements as oxide or salt or in elemental form and calcining at 300-1300 DEG C. under 0.1-200 bar and the process for preparing them.

公开(公告)号：CA2152815A1

公开(公告)日：1994-08-04

申请号：CA2152815

申请日：1994-01-13

Applicant: BASF AG

Inventor： FETZER THOMAS ,  BUECHELE WOLFGANG ,  IRGANG MATTHIAS ,  OTTO BERNHARD ,  WISTUBA HERMANN ,  BUERGER GERT

IPC: B01J23/76 ,  B01J23/00 ,  B01J23/80 ,  B01J37/08 ,  C07B61/00 ,  C07C29/153 ,  C07C29/154 ,  C07C29/156 ,  C07C31/04

Abstract: Catalysts are produced by combining M-Al2O4, in which M stands for an element of the I, VII and VIII secondary groups of the periodic table of elements, with tin, lead, an element of the II main or secondary group of the periodic table of elements, as an oxide or salt or in its elementary form, and by calcinating them at temperatures from 300 to 1300 .degree.C and pressures from 0.1 to 200 bars. Also disclosed is a process for producing these catalysts.

公开(公告)号：AT334740T

公开(公告)日：2006-08-15

申请号：AT99953874

申请日：1999-10-18

Applicant: BASF AG

Inventor： BAIER MICHAEL ,  FETZER THOMAS ,  HOFSTADT OTTO ,  HESSE MICHAEL ,  BUERGER GERT ,  HARTH KLAUS ,  SCHUMACHER VOLKER ,  WISTUBA HERMANN ,  OTTO BERNHARD

IPC: B01D53/94 ,  B01D53/86 ,  B01J23/00 ,  B01J23/78 ,  B01J23/80 ,  B01J23/89 ,  C01G3/00 ,  C01G9/00

Abstract: A copper-containing catalyst of the composition of N2O contains a compound of the formula MxAl2O4, where M is Cu or a mixture of Cu and Zn and/or Mg and x is from 0.8 to 1.5. The novel catalyst is used in a process for the catalytic decomposition of pure N2O or N2O contained in gas mixtures, at elevated temperatures.

公开(公告)号：PL189983B1

公开(公告)日：2005-10-31

申请号：PL33502398

申请日：1998-02-09

Applicant: BASF AG

Inventor： RAULS MATTHIAS ,  BAUMANN DIETER ,  WISTUBA HERMANN ,  OTTO BERNHARD

IPC: C07C51/43 ,  C07C51/50 ,  C07B63/04 ,  C07C51/64 ,  C07C55/14 ,  C09K23/52

Abstract: Dicarboxylic acid crystals are prepared from a solution containing at least one organic dicarboxylic acid in a process in which at least one anionic polyelectrolyte having a molecular weight of at least 2000 is added to the solution before or during the crystallization.

公开(公告)号：AU7050601A

公开(公告)日：2001-11-26

申请号：AU7050601

申请日：2001-05-04

Applicant: BASF AG

Inventor： WESSEL HELGE ,  BAIER MICHAEL ,  FETZER THOMAS ,  HARTH KLAUS ,  SCHUMACHER VOLKER ,  WANJEK HERBERT ,  OTTO BERNHARD

IPC: B01D53/04 ,  B01D53/86