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. 28, 2023
Filed:
Dec. 07, 2018
Orano Cycle, Courbevoie, FR;
Commissariat À L'énergie Atomique ET Aux Énergies Alternatives, Paris, FR;
François Poncelet, Le Vesinet, FR;
Nicolas Vigier, Montevrain, FR;
Bénédicte Arab-Chapelet, Bagnols sur Ceze, FR;
Aurélie Gauthe, Avignon, FR;
Eléonore Welcomme, Vedene, FR;
Marie Hélène Noire, Sauveterre, FR;
COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES, Paris, FR;
ORANO RECYCLAGE, Châtillon, FR;
Abstract
A method for preparing a powder comprising an intimate mixture of UOparticles and PuOparticles and which may further comprise particles of ThOor NpO. The method comprises: preparing, via oxalic precipitations, an aqueous suspension Sof particles of uranium(IV) oxalate and an aqueous suspension Sof particles of plutonium(IV) oxalate; mixing the aqueous suspension Swith the aqueous suspension Sto obtain an aqueous suspension S; separating the aqueous suspension Sinto an aqueous phase and a solid phase comprising the particles of uranium(IV) oxalate and the particles of plutonium(IV) oxalate; and calcining the solid phase to convert (1) the particles of uranium(IV) oxalate to particles of triuranium octoxide and (2) the particles of plutonium(IV) oxalate to particles of plutonium(IV) dioxide, whereby the powder is obtained.