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:
Feb. 19, 2019
Filed:
Dec. 18, 2014
Commissariat À L'énergie Atomique ET Aux Énergies Alternatives, Paris, FR;
Orano Cycle, Courbevoie, FR;
Gilles Bernier, Avignon, FR;
Christian Sorel, Villeneuve-les-Avignon, FR;
Manuel Miguirditchian, Avignon, FR;
Coralie Balaguer, Vinon sur Verdon, FR;
Estelle Ameil, Carsan, FR;
Commissariat à l'énergie atomique et aux énergies alternatives, Paris, FR;
Orano Cycle, Courbevoie, FR;
Abstract
A method for processing a spent nuclear fuel is disclosed which includes a step for decontaminating uranium(VI) from one or more actinides(IV) and more specially from neptunium and/or plutonium, by complexing this (these) actinide(s)(IV). This method includes a step for decontaminating uranium (VI) from at least one actinide(IV), which decontaminating step comprises at least one operation for stripping the actinide(IV) from an organic phase, not miscible with water, and wherein uranium(VI) and the actinide(IV) are present, by putting the organic phase into contact with an aqueous phase comprising nitric acid and at least one complexing agent which more strongly complexes actinides(IV) than uranium(VI), and then separating the organic phase from the nitric aqueous phase, wherein the at least one complexing agent is a diglycolamide.