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:
Jan. 02, 2007
Filed:
Oct. 07, 2003
Pascal Baron, Bagnols sur Ceze, FR;
Michael Lecomte, Avignon, FR;
Xavier Heres, Avignon, FR;
Bernard Mauborgne, Equeurdreville Hanneville, FR;
Pascal Baron, Bagnols sur Ceze, FR;
Michael Lecomte, Avignon, FR;
Xavier Heres, Avignon, FR;
Bernard Mauborgne, Equeurdreville Hanneville, FR;
Commissariat A L'Energie Atomique, Paris, FR;
Abstract
The invention concerns a cyclic method for separating at least one chemical element Efrom at least one chemical element Efrom an aqueous solution containing said elements, which employs a mixture of two extractants operating in non-overlapping chemical fields. Each cycle of said method comprises: a) co-extracting elements Eand Eby means of an organic phase containing a first extractant suited to causing the migration of said elements into said organic phase; b) adding to the organic phase a second extractant suited to selectively retaining the element(s) Ein said organic phase during step c): c) selectively stripping the element(s) Efrom the organic phase; d) selectively stripping the element(s) Efrom the organic phase; e) separating the first and second extractants present in said organic phase at the end of step d).