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Title: Room temperature electrodeposition of actinides from ionic solutions

Uranic and transuranic metals and metal oxides are first dissolved in ozone compositions. The resulting solution in ozone can be further dissolved in ionic liquids to form a second solution. The metals in the second solution are then electrochemically deposited from the second solutions as room temperature ionic liquid (RTIL), tri-methyl-n-butyl ammonium n-bis(trifluoromethansulfonylimide) [Me.sub.3N.sup.nBu][TFSI] providing an alternative non-aqueous system for the extraction and reclamation of actinides from reprocessed fuel materials. Deposition of U metal is achieved using TFSI complexes of U(III) and U(IV) containing the anion common to the RTIL. TFSI complexes of uranium were produced to ensure solubility of the species in the ionic liquid. The methods provide a first measure of the thermodynamic properties of U metal deposition using Uranium complexes with different oxidation states from RTIL solution at room temperature.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1353071
Assignee:
THE BOARD OF REGENTS OF THE NEVADA SYSTEM OF HIGHER EDUCATION ON BEHALF OF THE UNIVERSITY OF NEVADA, LAS VEGAS INL
Patent Number(s):
9,631,290
Application Number:
13/764,282
Contract Number:
AC07-05ID14517; FC07-06ID14781
Resource Relation:
Patent File Date: 2013 Feb 11
Research Org:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Other works cited in this record:

Electrodeposition of Aluminum
patent, August 1948

Electrodeposition of Aluminum
patent, August 1948

Electrodeposition of Aluminum
patent, August 1948

Solvent Extraction Process for Plutonium
patent, February 1960

Uranium Separation Process
patent, April 1962

Magnesium reduction of uranium fluoride in molten salts
patent, November 1985

Ammonium plutonate uranate, its preparation process and its use for producing the mixed oxide (U,Pu)O2
patent, June 1989

Actinide dissolution
patent, April 1993

Electroseparation of actinide and rare earth metals
patent, December 1996

Apparatus for transmutation of nuclear reactor waste
patent, May 2001

Ionic liquids as solvents
patent, April 2002

Process for separating metals
patent, June 2005

U+4 generation in HTER
patent, March 2006

Continuous process electrorefiner
patent, August 2006

Porous membrane electrochemical cell for uranium and transuranic recovery from molten salt electrolyte
patent, September 2007

Dissolution of uranium oxides and electrochemical behavior of U(VI) in task specific ionic liquid
journal, July 2008
  • Rao, Ch. Jagadeeswara; Venkatesan, K. A.; Nagarajan, K.
  • Radiochimica Acta, Vol. 96, Issue 7, p. 403-409
  • DOI: 10.1524/ract.2008.1508

Cyclic Voltammetry of Th(IV) in the Room-Temperature Ionic Liquid [Me 3 N n Bu][N(SO 2 CF 3 ) 2 ]
journal, February 2006
  • Bhatt, Anand I.; Duffy, Noel W.; Collison, David
  • Inorganic Chemistry, Vol. 45, Issue 4, p. 1677-1682
  • DOI: 10.1021/ic051750i

Uranium extraction from aqueous solutions by ionic liquids
journal, December 2009

Electro-fluid analysis of a molten-salt electrorefiner with rotating cruciform anode baskets
journal, August 2010
  • Kim, K. R.; Choi, S. Y.; Ahn, D. H.
  • Journal of Radioanalytical and Nuclear Chemistry, Vol. 286, Issue 3, p. 801-806
  • DOI: 10.1007/s10967-010-0717-z

An Experimental Study of Molten Salt Electrorefining of Uranium Using Solid Iron Cathode and Liquid Cadmium Cathode for Development of Pyrometallurgical Reprocessing
journal, April 1997
  • KOYAMA, Tadafumi; IIZUKA, Masatoshi; SHOJI, Yuichi
  • Journal of Nuclear Science and Technology, Vol. 34, Issue 4, p. 384-393
  • DOI: 10.1080/18811248.1997.9733678

Electrochemistry of soluble UO22+ from the direct dissolution of UO2CO3 in acidic ionic liquid containing water
journal, March 2013

Structural Characterization of a Lanthanum Bistriflimide Complex, La(N(SO 2 CF 3 ) 2 ) 3 (H 2 O) 3 , and an Investigation of La, Sm, and Eu Electrochemistry in a Room-Temperature Ionic Liquid, [Me 3 N n Bu][N(SO 2 CF 3 ) 2 ]
journal, July 2005
  • Bhatt, Anand I.; May, Iain; Volkovich, Vladimir A.
  • Inorganic Chemistry, Vol. 44, Issue 14, p. 4934-4940
  • DOI: 10.1021/ic048199u

Room-temperature ionic liquid for lanthanum electrodeposition
journal, November 2008
  • Legeai, Sophie; Diliberto, S├ębastien; Stein, Nicolas
  • Electrochemistry Communications, Vol. 10, Issue 11, p. 1661-1664
  • DOI: 10.1016/j.elecom.2008.08.005

Electrodeposition of cesium at mercury electrodes in the tri-1-butylmethylammonium bis((trifluoromethyl)sulfonyl)imide room-temperature ionic liquid
journal, November 2004

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