Reductive stripping process for uranium recovery from organic extracts

Patent · Tue Jan 01 00:00:00 EST 1985

OSTI ID:865350

Hurst, Jr., Fred J. ^[1]

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1. (Oak Ridge, TN)

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.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• DOE Contract Number: W-7405-ENG-26
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4500493
• OSTI ID: 865350
• Country of Publication: United States
• Language: English

Related Subjects

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
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