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. 21, 2010
Filed:
Sep. 11, 2006
Dean R. Peterman, Idaho Falls, ID (US);
John R. Klaehn, Idaho Falls, ID (US);
Mason K. Harrup, Idaho Falls, ID (US);
Richard D. Tillotson, Moore, ID (US);
Jack D. Law, Pocatello, ID (US);
Dean R. Peterman, Idaho Falls, ID (US);
John R. Klaehn, Idaho Falls, ID (US);
Mason K. Harrup, Idaho Falls, ID (US);
Richard D. Tillotson, Moore, ID (US);
Jack D. Law, Pocatello, ID (US);
Battelle Energy Alliance, LLC, Idaho Falls, ID (US);
Abstract
Methods of separating actinides from lanthanides are disclosed. A regio-specific/stereo-specific dithiophosphinic acid having organic moieties is provided in an organic solvent that is then contacted with an acidic medium containing an actinide and a lanthanide. The method can extend to separating actinides from one another. Actinides are extracted as a complex with the dithiophosphinic acid. Separation compositions include an aqueous phase, an organic phase, dithiophosphinic acid, and at least one actinide. The compositions may include additional actinides and/or lanthanides. A method of producing a dithiophosphinic acid comprising at least two organic moieties selected from aromatics and alkyls, each moiety having at least one functional group is also disclosed. A source of sulfur is reacted with a halophosphine. An ammonium salt of the dithiophosphinic acid product is precipitated out of the reaction mixture. The precipitated salt is dissolved in ether. The ether is removed to yield the dithiophosphinic acid.