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Title: Reductive stripping process for uranium recovery from organic extracts

Abstract

In the reductive stripping of uranium from an organic extractant in a uranium recovery process, the use of phosphoric acid having a molarity in the range of 8 to 10 increases the efficiency of the reductive stripping and allows the strip step to operate with lower aqueous to organic recycle ratios and shorter retention time in the mixer stages. Under these operating conditions, less solvent is required in the process, and smaller, less expensive process equipment can be utilized. The high strength H.sub.3 PO.sub.4 is available from the evaporator stage of the process.

Inventors:
 [1]
  1. (Oak Ridge, TN)
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
OSTI Identifier:
865350
Patent Number(s):
4500493
Assignee:
United States of America as represented by United States (Washington, DC) ORNL
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
reductive; stripping; process; uranium; recovery; organic; extracts; extractant; phosphoric; acid; molarity; range; 10; increases; efficiency; allows; strip; step; operate; aqueous; recycle; ratios; shorter; retention; time; mixer; stages; operating; conditions; solvent; required; expensive; equipment; utilized; strength; available; evaporator; stage; stripping process; reductive stripping; operating conditions; phosphoric acid; recovery process; organic extractant; operating condition; retention time; mixer stage; uranium recovery; process equipment; /423/

Citation Formats

Hurst, Jr., Fred J. Reductive stripping process for uranium recovery from organic extracts. United States: N. p., 1985. Web.
Hurst, Jr., Fred J. Reductive stripping process for uranium recovery from organic extracts. United States.
Hurst, Jr., Fred J. Tue . "Reductive stripping process for uranium recovery from organic extracts". United States. https://www.osti.gov/servlets/purl/865350.
@article{osti_865350,
title = {Reductive stripping process for uranium recovery from organic extracts},
author = {Hurst, Jr., Fred J.},
abstractNote = {In the reductive stripping of uranium from an organic extractant in a uranium recovery process, the use of phosphoric acid having a molarity in the range of 8 to 10 increases the efficiency of the reductive stripping and allows the strip step to operate with lower aqueous to organic recycle ratios and shorter retention time in the mixer stages. Under these operating conditions, less solvent is required in the process, and smaller, less expensive process equipment can be utilized. The high strength H.sub.3 PO.sub.4 is available from the evaporator stage of the process.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}

Patent:

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