The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 2004
Filed:
Mar. 05, 2001
Applicant:
Inventors:
Christian Hamon, Saint-Nazaire, FR;
Karine Malefant, Queven, FR;
Geneviève Neveu, Puteaux, FR;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 8/00 ;
U.S. Cl.
CPC ...
B01J 8/00 ;
Abstract
A process and catalyst for reducing the nitrous oxide content in gas, which operates at relatively low temperatures, the activity of which is relatively insensitive to the presence of water vapour and which is highly resistant to hydrothermal degradation, is prepared from ferrierite exchanged with iron. Application to the treatment of gases with a low N O content, such as gases resulting from plants for the manufacture of nitric acid, and of gases with a high N O content, which are emitted during oxidations of organic compounds by nitric acid.