Patents by Inventor Andre Deloge

Andre Deloge has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for trapping gaseous ruthenium on polyvinyl pyridine, more particularly usable for recovering radioactive ruthenium from irradiated nuclear fuels
    Patent number: 5417942
    Abstract: The invention relates to a process fop trapping gaseous ruthenium on polyvinyl pyridine, more particularly usable for recovering radioactive ruthenium from irradiated nuclear fuels.This process consists of contacting a gas containing ruthenium in gaseous form with an adsorbent (11b) constituted by a vinyl pyridine polymer or copolymer for fixing the ruthenium to the latter. The gas can be constituted by yapours from a concentrate of fission products containing ruthenium, which has been heated (at 31) in the presence of an oxidizing agent for volatilizing the ruthenium.
    Type: Grant
    Filed: March 2, 1993
    Date of Patent: May 23, 1995
    Assignee: Compagnie Generale des Matieres Nucleaires
    Inventors: Jacques Foos, Marc Lemaire, Alain Guy, Micheline Draye, Rodolph Chomel, Andre Deloge, Pierre Doutreluingne
  • Method for recovering with the aid of a crown compound plutonium (IV) present in solutions, such as aqueous effluents, concentrated solutions of fission products and concentrated solutions of plutonium
    Patent number: 5183645
    Abstract: The invention concerns the recovery of Pu (IV) by using crown compounds.According to the invention, the aqueous solution containing the plutonium (IV) is placed in contact with at least one crown compound, for example DCH 18C6, dissolved in an organic diluting agent, such as benzonitrile. In the case where the solution only contains traces of Pu, it is possible to use a crown compound secured to a solid phase, such as silica.The aqueous solution is a concentrated solution of fission products, an effluent originating from an irradiated nuclear fuel reprocessing installation or a concentrated solution of plutonium with americium.
    Type: Grant
    Filed: December 11, 1990
    Date of Patent: February 2, 1993
    Assignee: Cogema-Compagnie Generale des Matieres Nuclearies
    Inventors: Jacques Foos, Marc Lemaire, Alain Guy, Vincent Guyon, Rodolphe Chomel, Andre Deloge, Pierre Doutreluigne, Henri Le Roy