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:
May. 22, 2012
Filed:
Jul. 02, 2007
Applicants:
Jean-paul Moulin, Bois d' Arcy, FR;
Gilbert Andreoletti, Urville-Nacqueville, FR;
Patrick Bourdet, Bethesda, MD (US);
Inventors:
Jean-Paul Moulin, Bois d' Arcy, FR;
Gilbert Andreoletti, Urville-Nacqueville, FR;
Patrick Bourdet, Bethesda, MD (US);
Assignee:
Areva NC, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G 56/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A chemical element to be very efficiently separated from uranium starting from an acid aqueous phase, in an extraction cycle for the uranium, when this chemical element is present in said phase at a concentration less than that of the uranium, or even as a trace element, and when it is moreover less extractable by the extractant used in this extraction cycle than is the uranium. The chemical element can notably be neptunium(IV) or thorium 228.