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
- OSTI ID:
- 6270573
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
NEPTUNIUM
SOLVENT EXTRACTION
SPENT FUELS
REPROCESSING
AQUEOUS SOLUTIONS
NITRIC ACID
ORGANIC SOLVENTS
PLUTONIUM
SEPARATION PROCESSES
ULTRAVIOLET RADIATION
ACTINIDES
DISPERSIONS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY SOURCES
EXTRACTION
FUELS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MATERIALS
METALS
MIXTURES
NUCLEAR FUELS
RADIATIONS
REACTOR MATERIALS
SOLUTIONS
SOLVENTS
TRANSURANIUM ELEMENTS
050800* - Nuclear Fuels- Spent Fuels Reprocessing
NEPTUNIUM
SOLVENT EXTRACTION
SPENT FUELS
REPROCESSING
AQUEOUS SOLUTIONS
NITRIC ACID
ORGANIC SOLVENTS
PLUTONIUM
SEPARATION PROCESSES
ULTRAVIOLET RADIATION
ACTINIDES
DISPERSIONS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY SOURCES
EXTRACTION
FUELS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MATERIALS
METALS
MIXTURES
NUCLEAR FUELS
RADIATIONS
REACTOR MATERIALS
SOLUTIONS
SOLVENTS
TRANSURANIUM ELEMENTS
050800* - Nuclear Fuels- Spent Fuels Reprocessing