Method for selectively reducing plutonium values by a photochemical process
Abstract
The rate of reduction of Pu(IV) to Pu(III) in nitric acid solution containing a reducing agent is enhanced by exposing the solution to 200-500 nm electromagnetic radiation. Pu values are recovered from an organic extractant solution containing Pu(IV) values and U(VI) values by the method of contacting the extractant solution with an aqueous nitric acid solution in the presence of a reducing agent and exposing the aqueous solution to electromagnetic radiation having a wavelength of 200-500 nm. Under these conditions, Pu values preferentially distribute to the aqueous phase and U values preferentially distribute to the organic phase.
- Inventors:
-
- Oak Ridge, TN
- Kingston, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 863246
- Patent Number(s):
- 4131527
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; selectively; reducing; plutonium; values; photochemical; process; rate; reduction; iii; nitric; acid; solution; containing; agent; enhanced; exposing; 200-500; nm; electromagnetic; radiation; recovered; organic; extractant; contacting; aqueous; presence; wavelength; conditions; preferentially; distribute; phase; plutonium values; extractant solution; acid solution; organic phase; solution containing; electromagnetic radiation; nitric acid; aqueous solution; reducing agent; aqueous phase; organic extractant; chemical process; aqueous nitric; selectively reducing; /204/423/976/
Citation Formats
Friedman, Horace A, Toth, Louis M, and Bell, Jimmy T. Method for selectively reducing plutonium values by a photochemical process. United States: N. p., 1978.
Web.
Friedman, Horace A, Toth, Louis M, & Bell, Jimmy T. Method for selectively reducing plutonium values by a photochemical process. United States.
Friedman, Horace A, Toth, Louis M, and Bell, Jimmy T. Sun .
"Method for selectively reducing plutonium values by a photochemical process". United States. https://www.osti.gov/servlets/purl/863246.
@article{osti_863246,
title = {Method for selectively reducing plutonium values by a photochemical process},
author = {Friedman, Horace A and Toth, Louis M and Bell, Jimmy T},
abstractNote = {The rate of reduction of Pu(IV) to Pu(III) in nitric acid solution containing a reducing agent is enhanced by exposing the solution to 200-500 nm electromagnetic radiation. Pu values are recovered from an organic extractant solution containing Pu(IV) values and U(VI) values by the method of contacting the extractant solution with an aqueous nitric acid solution in the presence of a reducing agent and exposing the aqueous solution to electromagnetic radiation having a wavelength of 200-500 nm. Under these conditions, Pu values preferentially distribute to the aqueous phase and U values preferentially distribute to the organic phase.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1978},
month = {Sun Jan 01 00:00:00 EST 1978}
}
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