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:
Mar. 12, 2013
Filed:
Jun. 29, 2010
Jean Luc Emin, Montigny-le-Bretonneux, FR;
Francois Drain, Saint Nom la Bretechè, FR;
Francois Poncelet, Le Vesinet, FR;
Binh Dinh, Pont Saint Esprit, FR;
Philippe Pradel, Paris, FR;
Pascal Baron, Bagnols sur Ceze, FR;
Michel Masson, Avignon, FR;
Jean Luc Emin, Montigny-le-Bretonneux, FR;
Francois Drain, Saint Nom la Bretechè, FR;
Francois Poncelet, Le Vesinet, FR;
Binh Dinh, Pont Saint Esprit, FR;
Philippe Pradel, Paris, FR;
Pascal Baron, Bagnols sur Ceze, FR;
Michel Masson, Avignon, FR;
Areva NC, Paris, FR;
Commissariat a l'Energie Atomique et aux Energies Alternatives, Paris, FR;
Abstract
A method for treating spent nuclear fuel, which includes first decontaminating the uranium, plutonium and neptunium found in a nitric aqueous phase resulting from dissolving the nuclear fuel in HNO. The uranium, plutonium and neptunium found in the solvent phase is then split in a first aqueous phase and a second aqueous phase. Next, the first aqueous phase is stored. Following, the plutonium or other mixtures found in the first aqueous phase is purified relative to the fission products still found in said phase, in order to obtain, at the end of said purification, an aqueous solution containing a mixture of Pu and U or Pu, U and Np. Finally the resulting mixture of Pu and U or the mixture of Pu, U and Np is co-converted into a mixed oxide.