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Combined transuranic-strontium extraction process

Patent ·
OSTI ID:7066326
;

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. 3 figs.

DOE Contract Number:
W-31109-ENG-38
Assignee:
Dept. of Energy, Washington, DC (United States)
Patent Number(s):
A; US 5169609
Application Number:
PPN: US 7-717426
OSTI ID:
7066326
Country of Publication:
United States
Language:
English

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Related Subjects

052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ACTINIDES
ALKALINE EARTH METALS
AMERICIUM
ELEMENTS
EXTRACTION
MANAGEMENT
METALS
NEPTUNIUM
PLUTONIUM
PROCESSING
RADIOACTIVE WASTE MANAGEMENT
RADIOACTIVE WASTE PROCESSING
SEPARATION PROCESSES
STRONTIUM
TECHNETIUM
TRANSITION ELEMENTS
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM ELEMENTS
URANIUM
WASTE MANAGEMENT
WASTE PROCESSING