EP 1017478 A1 20000712 - METHOD FOR REDUCING NITROUS OXIDE IN GASES AND CORRESPONDING CATALYSTS
Title (en)
METHOD FOR REDUCING NITROUS OXIDE IN GASES AND CORRESPONDING CATALYSTS
Title (de)
VERFAHREN ZUR REDUZIERUNG VON DISTICKSTOFFOXID IN GASEN UND ENTSPRECHENDE KATALYSATOREN
Title (fr)
PROCEDE POUR L'ABATTEMENT DU PROTOXYDE D'AZOTE DANS LES GAZ ET CATALYSEURS CORRESPONDANTS
Publication
Application
Priority
- FR 9901271 W 19990531
- FR 9807101 A 19980605
Abstract (en)
[origin: FR2779360A1] The invention concerns a method which consists in selectively destroying nitrous oxide at high temperature on catalysts consisting of refractory oxide agglomerates (alumina or zirconium) having intergranular porosity impregnated with a zirconium salt. The method is useful for treating gases in workshops producing nitric acid. The invention is also useful, using specific initiators, for treating gases rich in N2O produced in nitric oxidation of organic compounds.
IPC 1-7
IPC 8 full level
B01D 53/86 (2006.01); B01J 21/06 (2006.01); C01B 21/02 (2006.01); C01B 21/24 (2006.01)
CPC (source: EP)
B01D 53/8628 (2013.01); B01J 21/066 (2013.01); C01B 21/02 (2013.01); C01B 21/24 (2013.01); C01B 21/265 (2013.01); Y02C 20/10 (2013.01); Y02P 20/151 (2015.11)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
FR 2779360 A1 19991210; FR 2779360 B1 20000908; AU 3833199 A 19991230; BG 104214 A 20000831; BR 9906483 A 20000926; CA 2299562 A1 19991216; CN 1274297 A 20001122; EP 1017478 A1 20000712; HR P20000063 A2 20011231; HU P0100827 A2 20010628; HU P0100827 A3 20030228; IL 134307 A0 20010430; PL 338216 A1 20001009; TR 200000336 T1 20001023; WO 9964139 A1 19991216; ZA 200000838 B 20000913
DOCDB simple family (application)
FR 9807101 A 19980605; AU 3833199 A 19990531; BG 10421400 A 20000302; BR 9906483 A 19990531; CA 2299562 A 19990531; CN 99801299 A 19990531; EP 99920945 A 19990531; FR 9901271 W 19990531; HR P20000063 A 20000203; HU P0100827 A 19990531; IL 13430799 A 19990531; PL 33821699 A 19990531; TR 200000336 T 19990531; ZA 200000838 A 20000221