Patents by Inventor Rene Chevillotte

Rene Chevillotte 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 separation of certain elements from aqueous solutions resulting from the reprocessing of spent nuclear fuels
    Patent number: 5372794
    Abstract: The invention relates to a process for the separation of at least one element such as Nb, Sb, Ce+Pr, actinides and elements from groups VIIb and VIII of the Periodic Classification of Elements from aqueous solutions resulting from the reprocessing of spent nuclear fuels.This process consists of contacting said aqueous solution with a solid resin based on a vinyl pyridine polymer or copolymer and separating from said solution the resin used for fixing said element or elements.The resin is in particular a poly(vinyl-4-pyridine) powder in crosslinked from and the separated elements are e.g. ruthenium, rhodium, palladium, technetium, manganese, cobalt, iron, nickel, cerium and praseodymium.
    Type: Grant
    Filed: March 3, 1993
    Date of Patent: December 13, 1994
    Assignee: Compagnie Generale des Matieres Nucleaires
    Inventors: Marc LeMaire, Jacques Foos, Alain Guy, Micheline Draye, Rodolph Chomel, Rene Chevillotte