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Title: Photochemical preparation of plutonium pentafluoride

Abstract

The novel compound plutonium pentafluoride may be prepared by the photodissociation of gaseous plutonium hexafluoride. It is a white solid of low vapor pressure, which consists predominantly of a face-centered cubic structure with a.sub.o =4.2709.+-.0.0005 .ANG..

Inventors:
 [1];  [1]
  1. (Los Alamos, NM)
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM
OSTI Identifier:
866267
Patent Number(s):
US 4670239
Assignee:
United States of America as represented by United States (Washington, DC) LANL
DOE Contract Number:
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
photochemical; preparation; plutonium; pentafluoride; novel; compound; prepared; photodissociation; gaseous; hexafluoride; white; solid; vapor; pressure; consists; predominantly; face-centered; cubic; structure; 2709; 0005; ang; vapor pressure; centered cubic; face-centered cubic; cubic structure; chemical preparation; novel compound; plutonium pentafluoride; consists predominantly; /423/204/

Citation Formats

Rabideau, Sherman W., and Campbell, George M. Photochemical preparation of plutonium pentafluoride. United States: N. p., 1987. Web.
Rabideau, Sherman W., & Campbell, George M. Photochemical preparation of plutonium pentafluoride. United States.
Rabideau, Sherman W., and Campbell, George M. 1987. "Photochemical preparation of plutonium pentafluoride". United States. doi:. https://www.osti.gov/servlets/purl/866267.
@article{osti_866267,
title = {Photochemical preparation of plutonium pentafluoride},
author = {Rabideau, Sherman W. and Campbell, George M.},
abstractNote = {The novel compound plutonium pentafluoride may be prepared by the photodissociation of gaseous plutonium hexafluoride. It is a white solid of low vapor pressure, which consists predominantly of a face-centered cubic structure with a.sub.o =4.2709.+-.0.0005 .ANG..},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1987,
month = 1
}

Patent:

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  • A method is described of preparing PuF/sub 5/ which comprises irradiating PuF/sub 6/ with radiation having a wavelength less than 520 nm and an intensity sufficient to photodissociate the PuF/sub 6/ to PuF/sub 5/.
  • 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.
  • 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.
  • 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 electromegnetic 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 radiaion 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.