Patents by Inventor Louis Donnet

Louis Donnet 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 the electrochemical oxidation of Am(III) to Am(VI) usable for separating americium from spent nuclear fuel reprocessing solutions
    Patent number: 5609745
    Abstract: The invention relates to a process for the electrochemical oxidation of Am(III) to Am(VI), usable for separating americium from spent nuclear fuel reprocessing solutions.The process consists of adding to the aqueous nitric solution (17) containing the Am(III) a) heteropolyanion able to complex the americium, such as potassium phosphotungstate and b) the Ag(II) ion for oxidizing Am(III) being converted into Ag(I), and subjecting the solution to an electrolysis under conditions such that electrochemical regeneration takes place of the Ag(II) ion from the Ag(I) ion obtained during said oxidation.After oxidizing Am(III) to Am(VI), it is possible to extract the latter in an appropriate organic solvent.
    Type: Grant
    Filed: March 6, 1996
    Date of Patent: March 11, 1997
    Assignees: Commissariat A L'Energie Atomique, Compagnie Generale des Matieres Nucleaires
    Inventors: Jean M. Adnet, Louis Donnet, Philippe Brossard, Jacques Bourges