Process for the extraction of strontium from acidic solutions

Patent · Fri Dec 31 23:00:00 EST 1993

OSTI ID:869478

Horwitz, E Philip ^[1]; Dietz, Mark L ^[2]

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1. Naperville, IL
2. Evanston, IL

The invention is a process for selectively extracting strontium values from aqueous nitric acid waste solutions containing these and other fission product values. The extractant solution is a macrocyclic polyether in an aliphatic hydrocarbon diluent containing a phase modifier. The process will selectively extract strontium values from nitric acid solutions which are up to 6 molar in nitric acid.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5344623
• OSTI ID: 869478
• Country of Publication: United States
• Language: English

Related Subjects

/423/
acid
acid solution
acid solutions
acid waste
acidic
acidic solution
acidic solutions
aliphatic
aliphatic hydrocarbon
aqueous
aqueous nitric
containing
diluent
diluent containing
extract
extractant
extractant solution
extracting
extracting strontium
extraction
fission
fission product
hydrocarbon
hydrocarbon diluent
macrocyclic
macrocyclic polyether
modifier
molar
nitric
nitric acid
phase
phase modifier
polyether
process
product
product values
selectively
selectively extract
selectively extracting
solution
solutions
solutions containing
strontium
values
waste
waste solution
waste solutions