公开(公告)号：DE59203011D1

公开(公告)日：1995-08-31

申请号：DE59203011

申请日：1992-04-24

Applicant: BASF AG

Inventor： HESS KLAUS DR ,  MORSBACH BERND ,  DREWS RONALD DR ,  BUECHELE WOLFGANG DR ,  SCHACHNER HELMUT DR

IPC: B01D53/86 ,  B01D53/94 ,  B01J27/053

Abstract: Catalyst containing metallic oxides, which in addition to oxides of titanium and/or zirconium, oxides of vanadium and/or niobium and oxides of molybdenum, tungsten and/or chromium, also contains sulphates of the alkaline earth metals, and which is used in a process for the oxidative breakdown of organic compounds in the waste gases from incinerator plants.

公开(公告)号：DE4203219A1

公开(公告)日：1993-08-12

申请号：DE4203219

申请日：1992-02-05

Applicant: BASF AG ,  DAIMLER BENZ AG

Inventor： MORSBACH BERND ,  DAUDEL HELMUT ,  GAERTNER UWE

IPC: B01D53/30 ,  B01D53/56 ,  B01D53/94 ,  F01N3/20 ,  F02B3/06

Abstract: Process for the selective catalytic reduction of nitrogen oxides from exhaust gases, preferably from exhausts gases of motor vehicle diesel engines, with timed superstoichiometric addition of NH3 or NH3-releasing substances, the timed superstoichiometric NH3 addition being controlled in such a manner that the addition, after its start, is only interrupted when the NH3 quantity stored in the catalyst has reached a defined preset upper threshold value, corresponding to the catalyst properties and the catalyst volume, the stored NH3 quantity being calculated from the difference between the metered NH3 amount and the released NOx amount, determined from the NOx concentration in the exhaust gas and the mean release rate, and the NH3 feed being only restarted when the NH3 amount stored in the catalyst, determined in the same way, has reached a preset lower threshold value, this timed NH3 feed being terminated after a predetermined number of cycles until the NH3 amount stored in the catalyst, determined in the manner described, is completely reacted to exhaustion, with which a complete cycle of the timed NH3 feed is concluded.

公开(公告)号：DE4117143A1

公开(公告)日：1992-11-26

申请号：DE4117143

申请日：1991-05-25

Applicant: DAIMLER BENZ AG ,  BASF AG

Inventor： AGAR DAVID DR ,  BROECKER FRANZ JOSEF DR ,  KOECHEL OLIVER ,  MORSBACH BERND ,  RUPPEL WILHELM DR ,  WUENSCH MARTIN DR ,  DAUDEL HELMUT ,  GAERTNER UWE

IPC: B01D53/30 ,  B01D53/86 ,  B01D53/94 ,  F02B3/06

公开(公告)号：PT1233012E

公开(公告)日：2003-10-31

申请号：PT01103224

申请日：2001-02-12

Applicant: BASF AG

Inventor： KUMMER MATTHIAS ,  RUHL THOMAS ,  DISTELDORF WALTER ,  MORSBACH BERND ,  PETERS JARREN

IPC: B01D3/14 ,  C07C51/573 ,  C07C63/00 ,  C07C63/16

公开(公告)号：AT240927T

公开(公告)日：2003-06-15

申请号：AT01103224

申请日：2001-02-12

Applicant: BASF AG

Inventor： DISTELDORF WALTER DR ,  PETERS JARREN DR ,  MORSBACH BERND ,  KUMMER MATTHIAS DR ,  RUEHL THOMAS DR

IPC: B01D3/14 ,  C07C51/573 ,  C07C63/00 ,  C07C63/16

公开(公告)号：DE59610128D1

公开(公告)日：2003-03-20

申请号：DE59610128

申请日：1996-11-02

Applicant: DAIMLER CHRYSLER AG ,  BASF AG

Inventor： HARTWEG MARTIN ,  SEIBOLD ANDREA ,  WALZ LEONHARD ,  FETZER THOMAS ,  MORSBACH BERND

IPC: B01D53/94 ,  B01J23/00 ,  B01J23/76 ,  B01J23/80 ,  B01J23/84 ,  B01J23/847 ,  B01J23/89

Abstract: The catalyst comprises a spinel consisting of copper, zinc and aluminium. The spinel of formula CaaZnbAlcO4 is mixed with palladium, platinum, rhodium, ruthenium, osmium, iridium or rhenium and/or rare earth such as lanthanum and cerium, vanadium, titanium, niobium, molybdenum, tungsten and/or their salts; where a + b + c = 3 and a > 0, b > 0 and c > O. Also claimed is the production of the catalyst in which a spinel is produced from copper oxide, zinc oxide and aluminium oxide, and to the spinel is added Pd, Pt, Rh, Re, Os, Ir, Ru and/or rare earths, e.g. Ln and Ce, V, Ti, Mo, W and their salts and oxides. The spinel is preferably impregnated with cerium oxide in an amount of 0.5-15 wt.% especially 1-8 wt.%.

公开(公告)号：BR0016645A

公开(公告)日：2002-10-08

申请号：BR0016645

申请日：2000-12-12

Applicant: BASF AG

Inventor： HOLZMANN JORGEN ,  BREITSCHEIDEL BORIS ,  DISTELDORF WALTER ,  HALLER CHRISTIANE ,  MORSBACH BERND

IPC: C08G63/16 ,  C08G63/20 ,  C08K5/11 ,  C08L27/06 ,  C08L67/02

Abstract: Polyester is produced by reaction of an aliphatic dicarboxylic acid, neopentyl glycol, at least one other diol, and a nonanol mixture comprising mainly 1-nonanol, monomethyloctanols, dimethylheptanols and monoethylheptanols. An Independent claim is also included for the nonanol mixture.

公开(公告)号：DE10106664A1

公开(公告)日：2002-08-14

申请号：DE10106664

申请日：2001-02-12

Applicant: BASF AG

Inventor： DISTELDORF WALTER ,  PETERS JARREN ,  MORSBACH BERND ,  KUMMER MATTHIAS ,  RUEHL THOMAS

IPC: B01D3/14 ,  C07D307/89 ,  C07C51/44

Abstract: The invention relates to a method for the production of phthalic anhydride to a specification, using a distillative purification of crude phthalic anhydride, by introduction of crude phthalic anhydride into a distillation column, operating at reduced pressure, withdrawal of the low-boiling fraction from the head, or near the head of the column and withdrawal of the phthalic anhydride, which meets the specification, from a side-tap on the column, whilst operating the column at a reflux ratio x, with 1:1.7

公开(公告)号：DE59703453D1

公开(公告)日：2001-05-31

申请号：DE59703453

申请日：1997-12-17

Applicant: DAIMLER CHRYSLER AG ,  BASF AG

Inventor： FETZER THOMAS ,  MORSBACH BERND ,  KUMBERGER OTTO ,  HARTWEG MARTIN ,  ROITZHEIM ROLF-DIRC ,  SEIBOLD ANDREA ,  WALZ LEONHARD

IPC: B01D53/94 ,  B01J23/00 ,  B01J23/89 ,  F01N3/10

Abstract: PCT No. PCT/EP97/07091 Sec. 371 Date Jun. 16, 1999 Sec. 102(e) Date Jun. 16, 1999 PCT Filed Dec. 17, 1997 PCT Pub. No. WO98/26858 PCT Pub. Date Jun. 25, 1998A process for the catalytic reduction of NOx, the reduction taking place in the presence of a catalyst which comprises (a) from 20 to 97 wt % of A2O3, (b) from 1 to 40 wt % of CuO, (c) from 1 to 50 wt % of ZnO, (d) from 1 to 40 wt % of Ag, (e) from 0 to 2 wt % of Pt, (f) from 0 to 20 wt % of oxides of rare earth metals, elements of the 3rd subgroup of the Periodic Table of the Elements or mixtures thereof, based on the total weight of the components (a) to (e), which adds up to 100 wt %, wherein, in each case, up to half the weight of the component (a) may be replaced by Fe2O3, Cr2O3, Ga2O3 or mixtures thereof, of the component (b) by CoO, of the component (c) by MgO, of the component (d) by Au and of the component (e) by Pd, Ru, Os, Ir, Rh, Re or mixtures thereof, is used for reducing NOx, especially in combustion off-gases, the components (a), (b) and (c) forming a spinel which is doped with the components (d), (e) and (f).

公开(公告)号：DE19724545A1

公开(公告)日：1998-12-24

申请号：DE19724545

申请日：1997-06-11

Applicant: BASF AG ,  DAIMLER BENZ AG

Inventor： HARTWEG MARTIN DR ,  FETZER THOMAS DR ,  MORSBACH BERND ,  KUMBERGER OTTO DR

IPC: B01D53/94 ,  B01J23/00 ,  B01J23/80 ,  B01J23/89 ,  F01N3/08 ,  B01J35/02 ,  B01J29/04 ,  B01J23/72 ,  B01J23/83 ,  B01J27/232 ,  B01J23/84 ,  B01D53/86 ,  F01N3/28

Abstract: The invention relates to a storage catalyst for a flow of waste gases, especially of a combustion engine operating alternately on lean and rich fuel, preferably a diesel engine or a lean mixture engine, or for the waste gases of a combustion plant. The inventive catalyst comprises a constituent which is capable of catalytic reduction of nitric oxides at least in the presence of hydrocarbons, and a constituent which stores NOx at least below 100 DEG C. The catalytic constituent has the general chemical formula AaBbO4, wherein A is one or several bivalent metals, B is one or several trivalent metals, a + b 0. Said catalytic constituent also has at least microscopically a crystalline or crystal-like cubic grid structure with face-centred oxygen ions and tetrahedral or octahedral vacancies. The A-particles and up to 50 % of the B-particles are situated in said tetrahedral vacancies and the rest of the B-particles are situated in said octahedral vacancies. The reaction enthalpy or the chemical activity between the catalytic constituent and the NOx storage constituent is low at least up to temperatures of 600 DEG C, preferably 800 DEG C.