Global Patent Index - EP 1255606 A1

EP 1255606 A1 2002-11-13 - METHOD FOR CATALYTIC REDUCTION OF NITROGEN OXIDE EMISSIONS

Title (en)

METHOD FOR CATALYTIC REDUCTION OF NITROGEN OXIDE EMISSIONS

Title (de)

VERFAHREN ZUR VERMINDERUNG VON STICKOXIDAUSSTOESSEN

Title (fr)

PROCEDE DE REDUCTION CATALYTIQUE DES EMISSIONS D'OXYDE D'AZOTE

Publication

EP 1255606 A1 (FR)

Application

EP 01905861 A

Priority

  • FR 0100338 W
  • FR 0001487 A

Abstract (en)

[origin: WO0156685A1] The invention concerns a method for trapping NOx in gas treatment to reduce nitrogen oxide emissions. The method is characterised in that it consists in using a mass catalyst based on an oxide of formula (1): AxMn1-yByO2+/- delta wherein: A represents one or several elements selected from groups IA, IIA, IIIA of the periodic table; B is a metal selected among tin and elements of groups IVA to IIIB of the periodic table; x and y having the following values: 0.16 </= x </= 1 and 0 </= y < 0.5, the oxide having a laminar crystallographic or tunnel structure.

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

B01D 53/94; B01J 23/00; B01J 23/34

IPC 8 full level (invention and additional information)

F01N 3/08 (2006.01); B01D 53/94 (2006.01); B01J 23/00 (2006.01); B01J 23/34 (2006.01); B01J 23/656 (2006.01); C01G 45/00 (2006.01); F01N 3/10 (2006.01); F01N 3/28 (2006.01)

CPC (invention and additional information)

B01J 23/6562 (2013.01); B01D 53/9422 (2013.01); B01J 23/002 (2013.01); B01J 23/34 (2013.01); B01D 2255/1021 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/1025 (2013.01); B01D 2255/202 (2013.01); B01D 2255/204 (2013.01); B01D 2255/20707 (2013.01); B01D 2255/2073 (2013.01); B01D 2255/20738 (2013.01); B01J 2523/00 (2013.01)

Combination set (CPC)

B01J 2523/00 + B01J 2523/13 + B01J 2523/72

Citation (search report)

See references of WO 0156685A1

Designated contracting state (EPC)

AT BE CH CY DE DK FR GB IT LI

EPO simple patent family

WO 0156685 A1 20010809; CA 2399180 A1 20010809; CN 1406149 A 20030326; EP 1255606 A1 20021113; FR 2804619 A1 20010810; FR 2804619 B1 20020802; JP 2003521370 A 20030715; KR 20030004345 A 20030114; US 2003175191 A1 20030918

INPADOC legal status


2005-03-09 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20040901

2004-05-12 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): AT BE CH CY DE DK FR GB IT LI

2003-01-22 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: HEDOUIN, CATHERINE

2003-01-22 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: SEGUELONG, THIERRY

2002-11-13 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020903

2002-11-13 [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 TR

2002-11-13 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI