Global Patent Index - EP 0981402 A1

EP 0981402 A1 2000-03-01 - GOLD BASED CATALYST FOR EXHAUST GAS PURIFICATION

Title (en)

GOLD BASED CATALYST FOR EXHAUST GAS PURIFICATION

Title (de)

AUF GOLD BASIERENDER KATALYSATOR ZUR ABGASREINIGUNG

Title (fr)

CATALYSEUR A BASE D'OR POUR LA PURIFICATION DE GAZ D'ECHAPPEMENT

Publication

EP 0981402 A1 (EN)

Application

EP 98918997 A

Priority

  • BG 9800010 W
  • BG 10149097 A

Abstract (en)

[origin: WO9851401A1] The invention relates to a gold catalyst for oxidation of carbon monoxide and hydrocarbons, reduction of nitrous oxides and degradation of ozone, for use in the protection of the environment. The active component of the catalyst consists of complex of gold and reducible oxide from the group of the transition metals. The concentration of gold in the catalyst is from 0.1 % to 2.5 % and the total concentration of the metals in the active component of the catalyst is from 0.1 % to 10 % of the total mass. The support consists of oxides of ceria and titanium. The surface of the catalyst is between 80 m<2>/g and 400 m<2>/g and the catalyst working temperature is from 0 DEG C to 400 DEG C.

IPC 1-7 (main, further and additional classification)

B01D 53/94; B01J 23/52

IPC 8 full level (invention and additional information)

B01J 23/89 (2006.01); B01D 53/86 (2006.01); B01D 53/94 (2006.01); B01J 23/52 (2006.01); B01J 23/66 (2006.01)

CPC (invention and additional information)

B01D 53/945 (2013.01); B01D 53/8675 (2013.01); B01J 23/52 (2013.01); B01J 23/66 (2013.01); Y02C 20/10 (2013.01); Y02T 10/22 (2013.01)

Citation (search report)

See references of WO 9851401A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9851401 A1 19981119; AU 7201398 A 19981208; BG 101490 A 19990430; BG 62687 B1 20000531; EP 0981402 A1 20000301; JP 2001524030 A 20011127

INPADOC legal status


2003-06-11 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20021203

2001-08-22 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010709

2000-03-01 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991214

2000-03-01 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE