Octyl(phenyl)-N,N-diisobutylcarbamoylmethylphosphine oxide as an extractant for actinides from nitric acid waste
Conference
·
OSTI ID:6165413
The ability of neutral bifunctional organophosphorus compounds to extract trivalent actinides, specifically Am(III), from nitric acid solution has stimulated investigations into the processing of PUREX high level liquid waste. The authors' work in this area has focused primarily on derivatives of carbamoylmethylphosphine oxide (CMPO). The authors of this paper have found that the best extractant of this type is octyl(phenyl)-N,N-diisobutylmethylphosphine oxide (abbrev. O phi D (IB)CMPO). This extractant has a unique combination of substituent groups which impart to the resulting molecule substantially improved ability to extract actinides from acidic nitrate media and to withstand hydrolytic and radiolytic degradation. At the same time good selectivity of Am(III) actinides over fission products and favorable solubility properties on actinide loading are maintained. This paper describes the application of O phi D (IB) CMPO to the extraction of transuranium elements (Np, Pu, and Am) and fission product rare earths (F.P.R.E.) from evaporated highly acidic (5 M HNO/sub 3/) PUREX waste. Additional information on the influence of phenyl substitution in CMPO's and mixed CMPO-TBP extractant solutions on D/sub Am/ is also presented. 3 figures, 2 tables.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6165413
- Report Number(s):
- CONF-830808-5; ON: DE83010774
- Country of Publication:
- United States
- Language:
- English
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Transuranic decontamination of nitric acid solutions by the TRUEX solvent extraction process: preliminary development studies. [Octyl(phenyl)-N,N-diisobutylcarbamoylmethylphosphine oxide]
Journal Article
·
Thu Dec 31 23:00:00 EST 1981
· Sep. Sci. Technol.; (United States)
·
OSTI ID:6235767
Extraction of Am(III) from nitric acid by octyl(phenyl)-N,N-diisobutylcarbamoylmethylphosphine oxide-tri-n-butyl phosphate mixtures
Journal Article
·
Sat Dec 31 23:00:00 EST 1983
· Solvent Extr. Ion Exch.; (United States)
·
OSTI ID:6877246
Transuranic decontamination of nitric acid solutions by the TRUEX solvent extraction process: preliminary development studies. [Octyl(phenyl)-N,N-diisobutylcarbamoylmethylphosphine oxide]
Technical Report
·
Sun Jul 01 00:00:00 EDT 1984
·
OSTI ID:6696097
Related Subjects
052001 -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ACTINIDES
AMERICIUM
DATA
DIAGRAMS
ELEMENTS
EXPERIMENTAL DATA
EXTRACTION
FISSION PRODUCTS
FLOWSHEETS
HIGH-LEVEL RADIOACTIVE WASTES
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
ISOTOPES
MATERIALS
MEDIUM TEMPERATURE
METALS
NEPTUNIUM
NITRIC ACID
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
PLUTONIUM
PUREX PROCESS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RARE EARTHS
REPROCESSING
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENT PROPERTIES
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM ELEMENTS
WASTES
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ACTINIDES
AMERICIUM
DATA
DIAGRAMS
ELEMENTS
EXPERIMENTAL DATA
EXTRACTION
FISSION PRODUCTS
FLOWSHEETS
HIGH-LEVEL RADIOACTIVE WASTES
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
ISOTOPES
MATERIALS
MEDIUM TEMPERATURE
METALS
NEPTUNIUM
NITRIC ACID
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
PLUTONIUM
PUREX PROCESS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RARE EARTHS
REPROCESSING
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENT PROPERTIES
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM ELEMENTS
WASTES