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:
Sep. 20, 1988
Filed:
Dec. 02, 1986
Nicole Descouls, Saint Jean de Maurienne, FR;
Jean-Claude Morisseau, Mennecy, FR;
Claude Musikas, Bures sur Yvette, FR;
Commissariat a l'Energie Atomique, Paris, FR;
Abstract
The invention relates to a process for the extraction of uranium (VI) and/or plutonium (IV) present in an aqueous solution by means of N,N-dialkylamides. These N,N-dialkylamides are in accordance with formula: ##STR1## in which R.sup.1 is a straight or branched alkyl radical with 2 to 12 carbon atoms, R.sup.2 and R.sup.4, which can be the same or different, are straight or branched alkyl radicals with 2 to 6 carbon atoms, R.sup.3 and R.sup.5, which can be the same or different, are straight or branched alkyl radicals with 1 to 6 carbon atoms and a and b, which can be the same or different, are integers between 1 and 6. For example, it is possible to use N,N-di-(2-ethyl hexyl)-2,2-dimethyl butyramide, N,N-di-(2-ethyl hexyl)-hexanamide or N,N-di-(2-ethyl hexyl)-dodecanamide for simultaneously extracting uranium and plutonium, or for separating the uranium from the plutonium without reducing the latter.