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Title: Reductive stripping process for the recovery of uranium from wet-process phosphoric acid

Abstract

A reductive stripping flow sheet for recovery of uranium from wet-process phosphoric acid is described. Uranium is stripped from a uranium-loaded organic phase by a redox reaction converting the uranyl to uranous ion. The uranous ion is reoxidized to the uranyl oxidation state to form an aqueous feed solution highly concentrated in uranium. Processing of this feed through a second solvent extraction cycle requires far less stripping reagent as compared to a flow sheet which does not include the reductive stripping reaction.

Inventors:
 [1];  [1]
  1. (Oak Ridge, TN)
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
OSTI Identifier:
875287
Patent Number(s):
RE31686
Assignee:
DOE ORNL
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
reductive; stripping; process; recovery; uranium; wet-process; phosphoric; acid; flow; sheet; described; stripped; uranium-loaded; organic; phase; redox; reaction; converting; uranyl; uranous; reoxidized; oxidation; form; aqueous; feed; solution; highly; concentrated; processing; solvent; extraction; cycle; requires; reagent; compared; phosphoric acid; highly concentrated; stripping process; /423/

Citation Formats

Hurst, Fred J., and Crouse, David J. Reductive stripping process for the recovery of uranium from wet-process phosphoric acid. United States: N. p., 1984. Web.
Hurst, Fred J., & Crouse, David J. Reductive stripping process for the recovery of uranium from wet-process phosphoric acid. United States.
Hurst, Fred J., and Crouse, David J. Sun . "Reductive stripping process for the recovery of uranium from wet-process phosphoric acid". United States. https://www.osti.gov/servlets/purl/875287.
@article{osti_875287,
title = {Reductive stripping process for the recovery of uranium from wet-process phosphoric acid},
author = {Hurst, Fred J. and Crouse, David J.},
abstractNote = {A reductive stripping flow sheet for recovery of uranium from wet-process phosphoric acid is described. Uranium is stripped from a uranium-loaded organic phase by a redox reaction converting the uranyl to uranous ion. The uranous ion is reoxidized to the uranyl oxidation state to form an aqueous feed solution highly concentrated in uranium. Processing of this feed through a second solvent extraction cycle requires far less stripping reagent as compared to a flow sheet which does not include the reductive stripping reaction.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {1}
}

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