公开(公告)号：JP2000033267A

公开(公告)日：2000-02-02

申请号：JP19066999

申请日：1999-07-05

Applicant: DEGUSSA

Inventor： VAN DEN TILLAART HANS DR ,  LEYRER JUERGEN DR ,  STREHLAU WOLFGANG DR ,  LOX EGBERT DR ,  KREUZER THOMAS DR ,  PLOG CARSTEN DR ,  ANDORF RENATO DR ,  MARKERT NORBERT ,  STENGEL THOMAS

IPC: B01D53/94 ,  B01J23/46 ,  B01J29/068 ,  B01J29/44

Abstract: PROBLEM TO BE SOLVED: To reduce nitrogen oxides by making iridium be contained on a carrier material comprising silicon dioxide or zeolite and the iridium exist on the outer surface of the carrier material in an average particle size within a specified range. SOLUTION: A catalyst is constituted by incorporating iridium on a carrier material comprising zeolite of the formula M2/nO.Al2O3.xSiO2.yH2O (wherein M is an n-valent cation; (x) is a modulus), which is silicon dioxide 10-30 nm in a particle size or an oxidized silicon/aluminum compound having a special crystal structure, and making iridium 5-30 nm in an average particle size exist on the outer surface face of the carrier material. The catalyst is used in the shape of a coating applied on the wall surface of the passage of a ceramic or metal honeycomb structure. In this way, nitrogen oxides can be reduced in an oxidative and reductive atmosphere.

公开(公告)号：BR9903053A

公开(公告)日：2000-05-09

申请号：BR9903053

申请日：1999-07-02

Applicant: DEGUSSA

Inventor： TILLAART HANS VAN DEN ,  LEYRER JUERGEN ,  STREHLAU WOLFGANG ,  LOX EGBERT ,  KREUZER THOMAS ,  PLOG CARSTEN ,  ANDORF RENATO ,  MARKERT NORBERT ,  STENGEL THOMAS

IPC: B01D53/94 ,  B01J23/46 ,  B01J29/068 ,  B01J29/44 ,  B01J103/76

Abstract: The catalyst for reducing nitrogen oxides in an oxidizing and reducing atmosphere contains iridium on a support material made of silicon dioxide or zeolite. The iridium on the outer surface has an average particle size of 5-30 nm. An Independent claim is also included for the production of the catalyst comprising impregnating the support material with a soluble precursor of iridium, drying the impregnated material and calcining in a gas stream containing hydrogen at 300-500 degrees C for 1-10 hours.

公开(公告)号：TR9901534A2

公开(公告)日：2000-02-21

申请号：TR9901534

申请日：1999-07-01

Applicant: DEGUSSA

Inventor： TILLAART DR HANS VAN DEN ,  LEYRER DR JURGEN ,  STREHLAU DR WOLFGANG ,  LOX DR EGBERT ,  KREUZER DR THOMAS ,  PLOG DR CARSTEN ,  ANDORF DR RENATO ,  MARKERT NORBERT ,  STENGEL THOMAS

IPC: B01D53/94 ,  B01J23/46 ,  B01J29/068 ,  B01J29/44 ,  B01D53/86 ,  F01N3/20

CPC classification number: B01D53/9418 ,  B01D2255/1028 ,  B01D2255/504 ,  B01J23/468 ,  B01J35/006 ,  Y02T10/24

公开(公告)号：DE19930494A1

公开(公告)日：2000-02-03

申请号：DE19930494

申请日：1999-07-01

Applicant: DEGUSSA ,  DAIMLER CHRYSLER AG

Inventor： TILLAART HANS VAN DEN ,  LEYRER JUERGEN ,  STREHLAU WOLFGANG ,  LOX EGBERT ,  KREUZER THOMAS ,  PLOG CARSTEN ,  ANDORF RENATO ,  MARKERT NORBERT ,  STENGEL THOMAS

IPC: B01D53/94 ,  B01J23/46 ,  B01J29/068 ,  B01J29/44 ,  F01N3/20

Abstract: The catalyst for reducing nitrogen oxides in an oxidizing and reducing atmosphere contains iridium on a support material made of silicon dioxide or zeolite. The iridium on the outer surface has an average particle size of 5-30 nm. An Independent claim is also included for the production of the catalyst comprising impregnating the support material with a soluble precursor of iridium, drying the impregnated material and calcining in a gas stream containing hydrogen at 300-500 deg C for 1-10 hours.

公开(公告)号：ZA9904298B

公开(公告)日：2000-01-10

申请号：ZA9904298

申请日：1999-06-30

Applicant: DEGUSSA

Inventor： TILLAART HANS VAN DEN ,  LEYRER JUERGEN ,  STREHLAU WOLFGANG ,  LOX EGBERT ,  KREUZER THOMAS ,  PLOG CARSTEN ,  ANDORF RENATO ,  MARKERT NORBERT ,  STENGEL THOMAS

IPC: B01D53/94 ,  B01J23/46 ,  B01J29/068 ,  B01J29/44 ,  B01D ,  B01J ,  F01N

CPC classification number: B01D53/9418 ,  B01D2255/1028 ,  B01D2255/504 ,  B01J23/468 ,  B01J35/006 ,  Y02T10/24

公开(公告)号：TR199901534A2

公开(公告)日：2000-02-21

申请号：TR9901534

申请日：1999-07-01

Applicant: DEGUSSA

Inventor： TILLAART DR HANS VAN DEN ,  LEYRER DR JURGEN ,  STREHLAU DR WOLFGANG ,  LOX DR EGBERT ,  KREUZER DR THOMAS ,  PLOG DR CARSTEN ,  ANDORF DR RENATO ,  MARKERT NORBERT ,  STENGEL THOMAS

IPC: B01D53/94 ,  B01J23/46 ,  B01J29/068 ,  B01J29/44 ,  B01D53/86 ,  F01N3/20

Abstract: The catalyst for reducing nitrogen oxides in an oxidizing and reducing atmosphere contains iridium on a support material made of silicon dioxide or zeolite. The iridium on the outer surface has an average particle size of 5-30 nm. An Independent claim is also included for the production of the catalyst comprising impregnating the support material with a soluble precursor of iridium, drying the impregnated material and calcining in a gas stream containing hydrogen at 300-500 degrees C for 1-10 hours.

公开(公告)号：AU3795799A

公开(公告)日：2000-01-20

申请号：AU3795799

申请日：1999-07-02

Applicant: DEGUSSA

Inventor： TILLAART HANS VAN DEN ,  STENGEL THOMAS ,  MARKERT NORBERT ,  ANDORF RENATO ,  PLOG CARSTEN ,  KREUZER THOMAS ,  LOX EGBERT ,  STREHLAU WOLFGANG ,  LEYRER JURGEN

IPC: B01D53/94 ,  B01J23/46 ,  B01J29/068 ,  B01J29/44 ,  B01J21/06 ,  B01J32/00 ,  B01J29/40

Abstract: The catalyst for reducing nitrogen oxides in an oxidizing and reducing atmosphere contains iridium on a support material made of silicon dioxide or zeolite. The iridium on the outer surface has an average particle size of 5-30 nm. An Independent claim is also included for the production of the catalyst comprising impregnating the support material with a soluble precursor of iridium, drying the impregnated material and calcining in a gas stream containing hydrogen at 300-500 degrees C for 1-10 hours.

公开(公告)号：CZ9902405A3

公开(公告)日：2000-04-12

申请号：CZ240599

申请日：1999-07-02

Applicant: DEGUSSA

Inventor： VAN DEN TILLAART HANS DR ,  LEYRER JUERGEN DR ,  STREHLAU WOLFGANG DR ,  LOX EGBERT DR ,  KREUZER THOMAS DR ,  PLOG CARSTEN DR ,  ANDORF RENATO DR ,  MARKERT NORBERT ,  STENGEL THOMAS

IPC: B01D53/56 ,  B01J27/13 ,  F01N13/16 ,  F01N7/16

公开(公告)号：CZ240599A3

公开(公告)日：2000-04-12

申请号：CZ240599

申请日：1999-07-02

Applicant: DEGUSSA

Inventor： VAN DEN TILLAART HANS DR ,  LEYRER JUERGEN DR ,  STREHLAU WOLFGANG DR ,  LOX EGBERT DR ,  KREUZER THOMAS DR ,  PLOG CARSTEN DR ,  ANDORF RENATO DR ,  MARKERT NORBERT ,  STENGEL THOMAS

IPC: B01D53/56 ,  B01J27/13 ,  F01N13/16 ,  F01N7/16

公开(公告)号：ZA994298B

公开(公告)日：2000-01-10

申请号：ZA994298

申请日：1999-06-30

Applicant: DEGUSSA

Inventor： TILLAART HANS VAN DEN ,  LEYRER JUERGEN ,  STREHLAU WOLFGANG ,  LOX EGBERT ,  KREUZER THOMAS ,  PLOG CARSTEN ,  ANDORF RENATO ,  MARKERT NORBERT ,  STENGEL THOMAS

IPC: B01D53/94 ,  B01J23/46 ,  B01J29/068 ,  B01J29/44 ,  B01D ,  F01N ,  B01J

Abstract: The catalyst for reducing nitrogen oxides in an oxidizing and reducing atmosphere contains iridium on a support material made of silicon dioxide or zeolite. The iridium on the outer surface has an average particle size of 5-30 nm. An Independent claim is also included for the production of the catalyst comprising impregnating the support material with a soluble precursor of iridium, drying the impregnated material and calcining in a gas stream containing hydrogen at 300-500 degrees C for 1-10 hours.