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Title: Room temperature electrodeposition of actinides from ionic solutions

Abstract

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:
; ; ;
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1353071
Patent Number(s):
9,631,290
Application Number:
13/764,282
Assignee:
THE BOARD OF REGENTS OF THE NEVADA SYSTEM OF HIGHER EDUCATION ON BEHALF OF THE UNIVERSITY OF NEVADA, LAS VEGAS INL
DOE Contract Number:  
AC07-05ID14517; FC07-06ID14781
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Feb 11
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Hatchett, David W., Czerwinski, Kenneth R., Droessler, Janelle, and Kinyanjui, John. Room temperature electrodeposition of actinides from ionic solutions. United States: N. p., 2017. Web.
Hatchett, David W., Czerwinski, Kenneth R., Droessler, Janelle, & Kinyanjui, John. Room temperature electrodeposition of actinides from ionic solutions. United States.
Hatchett, David W., Czerwinski, Kenneth R., Droessler, Janelle, and Kinyanjui, John. Tue . "Room temperature electrodeposition of actinides from ionic solutions". United States. doi:. https://www.osti.gov/servlets/purl/1353071.
@article{osti_1353071,
title = {Room temperature electrodeposition of actinides from ionic solutions},
author = {Hatchett, David W. and Czerwinski, Kenneth R. and Droessler, Janelle and Kinyanjui, John},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 25 00:00:00 EDT 2017},
month = {Tue Apr 25 00:00:00 EDT 2017}
}

Patent:

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