Patents by Inventor Josiane Madeleine Courbis

Josiane Madeleine Courbis 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).

  • Method for regenerating a solid iodine filter
    Patent number: 8716158
    Abstract: A method for regenerating a solid filter containing iodine in the form of silver iodide and/or iodate and possibly molecular iodine physisorbed, in a solid filter containing silver in the form of nitrate. The iodine is extracted from the filter by putting the filter into contact with a basic aqueous solution containing a reducing agent. The extraction is achieved at room temperature, and then the filter is separated from this basic aqueous solution. Next, silver is extracted from the filter by putting the filter into contact with an acid aqueous solution. The filter is then separated from the acid aqueous solution. Finally, the filter is impregnated with silver by putting the filter into contact with a silver nitrate solution and then drying the filter. This method can be used in nuclear installations, notably factories for reprocessing used nuclear fuels.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: May 6, 2014
    Assignees: Areva NC, Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Aimé Vaudano, Frédéric Payot, Jean-Pierre Donnarel, Josiane Madeleine Courbis, Marie Pauline Madeleine Devisme
  • METHOD FOR REGENERATING A SOLID IODINE FILTER
    Publication number: 20120220448
    Abstract: A method for regenerating a solid filter containing iodine in the form of silver iodide and/or iodate and possibly molecular iodine physisorbed, in a solid filter containing silver in the form of nitrate. The iodine is extracted from the filter by putting the filter into contact with a basic aqueous solution containing a reducing agent. The extraction is achieved at room temperature, and then the filter is separated from this basic aqueous solution. Next, silver is extracted from the filter by putting the filter into contact with an acid aqueous solution. The filter is then separated from the acid aqueous solution. Finally, the filter is impregnated with silver by putting the filter into contact with a silver nitrate solution and then drying the filter. This method can be used in nuclear installations, notably factories for reprocessing used nuclear fuels.
    Type: Application
    Filed: July 16, 2010
    Publication date: August 30, 2012
    Applicant: AREVA NC
    Inventors: Aimé Vaudano, Frédéric Payot, Jean-Pierre Donnarel, Frédéric Devisme, Josiane Madeleine Courbis, Marie Pauline Madeleine Devisme