Method for separating actinides. [Patent application; stripping of Np from organic extractant]
Patent
·
OSTI ID:6270573
An organic solution used for processing spent nuclear reactor fuels is contacted with an aqueous nitric acid solution to strip Np(VI), U(VI), and Pu(IV) from the organic solution into the acid solution. The acid solution is exposed to ultraviolet light, which reduces Np(VI) to Np(V) without reducing U(VI) and Pu(IV). Since the solubility of Np(V) in the organic solution is much lower than that of Np(VI), U(VI), and Pu(IV), a major part of the Np is stripped from the organic solution while leaving most of the U and Pu therein.
- DOE Contract Number:
- W-7405-ENG-26
- Assignee:
- Dept. of Energy
- Patent Number(s):
- None
- OSTI ID:
- 6270573
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
050800* -- Nuclear Fuels-- Spent Fuels Reprocessing
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
ACTINIDES
AQUEOUS SOLUTIONS
DISPERSIONS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY SOURCES
EXTRACTION
FUELS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MATERIALS
METALS
MIXTURES
NEPTUNIUM
NITRIC ACID
NUCLEAR FUELS
ORGANIC SOLVENTS
PLUTONIUM
RADIATIONS
REACTOR MATERIALS
REPROCESSING
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
SOLVENTS
SPENT FUELS
TRANSURANIUM ELEMENTS
ULTRAVIOLET RADIATION
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
ACTINIDES
AQUEOUS SOLUTIONS
DISPERSIONS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY SOURCES
EXTRACTION
FUELS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MATERIALS
METALS
MIXTURES
NEPTUNIUM
NITRIC ACID
NUCLEAR FUELS
ORGANIC SOLVENTS
PLUTONIUM
RADIATIONS
REACTOR MATERIALS
REPROCESSING
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
SOLVENTS
SPENT FUELS
TRANSURANIUM ELEMENTS
ULTRAVIOLET RADIATION