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:
Nov. 27, 2007
Filed:
Feb. 06, 2004
Bruno Courtaud, Bellac, FR;
Fabrice Morel, Les Pieux, FR;
Georges Pagis, Cherbourg-Octeville, FR;
Carol Redonnet, Equeurdreville, FR;
Bruno Courtaud, Bellac, FR;
Fabrice Morel, Les Pieux, FR;
Georges Pagis, Cherbourg-Octeville, FR;
Carol Redonnet, Equeurdreville, FR;
Compagnie Generale des Matieres Nucleaires, Velizy-Villacoublay, FR;
Abstract
The present invention relates to a method and a device for trapping ruthenium present in a gaseous effluent. The trapping method of the present invention comprises the use of an aqueous solution or slurry of an alkylene glycol polymer or an alkylene glycol copolymer, in which the alkylene(s) has (have) from 2 to 6 carbon atoms, in order to trap ruthenium present in a gaseous effluent. The ruthenium-trapping cartridge of the present invention has a surface (S) on which an alkylene glycol polymer or an alkylene glycol copolymer is placed, in which the alkylene(s) has (have) from 2 to 6 carbon atoms. The present invention makes it possible in particular both to favour the trapping and the chemical operation of reducing ruthenium oxide RuO.