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Title: Actinide extraction methods

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.

Inventors:
 [1];  [1];  [1];  [2];  [3]
  1. Idaho Falls, ID
  2. Moore, ID
  3. Pocatello, ID
Issue Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1014659
Patent Number(s):
7,799,293
Application Number:
US Patent Application 11/530,508
Assignee:
Battelle Energy Alliance, LLC (Idaho Falls, ID) IDO
DOE Contract Number:  
AC07-05ID14517
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Peterman, Dean R, Klaehn, John R, Harrup, Mason K, Tillotson, Richard D, and Law, Jack D. Actinide extraction methods. United States: N. p., 2010. Web.
Peterman, Dean R, Klaehn, John R, Harrup, Mason K, Tillotson, Richard D, & Law, Jack D. Actinide extraction methods. United States.
Peterman, Dean R, Klaehn, John R, Harrup, Mason K, Tillotson, Richard D, and Law, Jack D. Tue . "Actinide extraction methods". United States. https://www.osti.gov/servlets/purl/1014659.
@article{osti_1014659,
title = {Actinide extraction methods},
author = {Peterman, Dean R and Klaehn, John R and Harrup, Mason K and Tillotson, Richard D and Law, Jack D},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {9}
}

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