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Title: Combined transuranic-strontium extraction process

Patent ·
OSTI ID:868584
 [1];  [2]
  1. Naperville, IL
  2. Evanston, IL
+ Show Author Affiliations

The transuranic (TRU) elements neptunium, plutonium and americium can be separated together with strontium from nitric acid waste solutions in a single process. An extractant solution of a crown ether and an alkyl(phenyl)-N,N-dialkylcarbanylmethylphosphine oxide in an appropriate diluent will extract the TRU's together with strontium, uranium and technetium. The TRU's and the strontium can then be selectively stripped from the extractant for disposal.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
DOE Contract Number:
W-31109-ENG-38
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 5169609
OSTI ID:
868584
Country of Publication:
United States
Language:
English

References (4)

Diluent Effects in the Extraction of Amine from Nitric acid Solutions by Selected Carbamoylphosphoryl Extractants and Related Monofunctional Compounds* journal February 1992
Selected Alkyl(phenyl)- N,N -dialkylcarbamoylmethylphosphine Oxides as Extractants for Am(III) from Nitric Acid Media journal July 1982
Investigations of ion-Size-Selective Synergism in Solvent Extraction journal November 1983
The Extraction of Am(III) and Fe(III) by Selected Dihexyl N,N-Dialkylcarbamoylmethyl-phosphonates, -Phosphinates and -Phosphine Oxides from Nitrate Media journal October 1981

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+2 more

Related Subjects

combined
transuranic-strontium
extraction
process
transuranic
tru
elements
neptunium
plutonium
americium
separated
strontium
nitric
acid
waste
solutions
single
extractant
solution
crown
alkyl
phenyl
-n
n-dialkylcarbanylmethylphosphine
oxide
appropriate
diluent
extract
uranium
technetium
selectively
stripped
disposal
acid waste
phosphine oxide
extractant solution
extraction process
nitric acid
waste solutions
waste solution
single process
/423/