THE SIGNIFICANCE OF CERTAIN COMPLEXES OF RUTHENIUM, NIOBIUM, ZIRCONIUM AND URANIUM IN PLANT PROCESSES
Solutions of fuels in nitric acid may contain a variety of ruthenium species, and methods for their identification and estimation in such solutions are presented. On the basis of laboratory investigations, the significance of the various species in solvent extraction processes (e.g., with dibutyl carbitol or tributyl phosphate as the solvent) and in related processes such as effluent treatment by precipitation, or by evaporation, are assessed and discussed. The complexing of uranium, zirconium, and niobium by tributyl phosphate and its degradation products arising from radiolysis or from hydrolysis has been examined and implications drawn as to the manner in which the formation of such complexes can affect zirconium and niobium decontamination factors in TBP separation processes. (auth)
- Research Organization:
- Atomic Energy Research Establishment, Harwell, Berks, Eng.
- NSA Number:
- NSA-13-006498
- OSTI ID:
- 4289746
- Report Number(s):
- A/CONF.15/P/31
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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THE SEPARATION OF PLUTONIUM FROM URANIUM
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Related Subjects
BUTYL RADICALS
CHELATES
CHEMICAL REACTIONS
CHEMISTRY
FUELS
HYDROLYSIS
NIOBIUM COMPOUNDS
NIOBIUM ISOTOPES
NITRIC ACID
RADIOISOTOPES
RADIOLYSIS
REPROCESSING
RUTHENIUM COMPLEXES
RUTHENIUM COMPOUNDS
RUTHENIUM ISOTOPES
SOLUTIONS
SOLVENT EXTRACTION
SOLVENTS
URANYL COMPOUNDS
WATER
ZIRCONIUM COMPOUNDS
ZIRCONIUM ISOTOPES