Patent EP0676232A1 successfully refreshed from Google Patents.
EP0676232A1
Expired / Lapsed
EP
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Spinel catalyst for the reduction of nitrogen oxide emissions
Assignee: Rhodia Chimie SAS
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Filing: 1995-04-03
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Granted: —
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Expires: 2015-04-03
Abstract
Abstract The use of a homogeneous catalyst of spinel structure and formula ZnAl2O4 or an oxide of spinel structure (normal or inverse) other than ZnAl2O4, for the treatment of exhaust gases with a high O2 content, is claimed. Pref. the oxide of spinel structure (normal or inverse) corresp. to the formula:- AB2O4 A = at least one element from gps. IIa, IIb, IIIb, IVb and Vb or any transition element. B = at least one element from gps. IVa, VIa, VIIa, VIIIa, Ib to Vb. Esp., A = Mg, Ti, Mn, Fe, Co, Ni, Cu, Zn, or Sn, and B = Ti, Mn, Cr, Fe, Co, Ni, Cu, Zn, Al, Ga, In, Sn or Sb. More pref, B = Al or Ga.
Inventors
- 👤 Philippe Barthe
- 👤 Pierre Macaudiere
- 👤 Thierry Seguelong
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 15:10
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/06; B01D; B01D53/00; B01D53/34; B01D53/74; B01D53/86; B01D53/92; B01D53/94; B01D53/9404; B01D53/9409; B01D53/9413; B01D53/9418; B01J23/005; B01D2251/00; B01D2251/20; B01D2251/208; B01D2255/00; B01D2255/20; B01D2255/207; B01D2255/20792; B01D2255/40; B01D2255/405; B01D2255/90; B01D2255/92; B01D2255/9207; B01D2258/00; B01D2258/01; B01D2258/012; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S502/00; Y10S502/514; Y10S502/524
Claims Analysis
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References Cited (Backward Citations)
FR2146358A1
Cited
US3904553A
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US4228138A
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US4274981A
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EP0210681A1
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DE3727642A1
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