RAPID TWO-CYCLE EXTRACTION METHOD FOR NEPTUNIUM. INITIAL SEPARATION AS NEPTUNIUM(VI) WITH METHYL ISOBUTYL KETONE
A method is described for the separation and determination of neptunium in urarnium--fission product -mixtures. A two-cycle extraction system is used. Neptunium is oxidized to +6 with permangarate and quantitatively extracted as a nitrate complex into methyl isobutyl ketone from an acid deficient aluminum nitrate salting solution containing tetrapropyl ammonium nitrate. Neptunium is stripped from the ketone phase and simultaneously reduced to +4 by contact with ferrous chloride-hydroxylamine solution, then quantitutively extracted into thenoyltrifluoroacetone-xylene. The extraction of uranium and plutonium is less than 0.1% and 0.01%, respectively. Rutherium and zircorium, the only 80day cooled fission products which follow the neptunium, are decontaminated to greater than 1 x 10/sup 4/. (auth)
- Research Organization:
- Phillips Petroleum Co. Atomic Energy Div., Idaho Falls, Idaho
- DOE Contract Number:
- AT(10-1)-205
- NSA Number:
- NSA-14-007446
- OSTI ID:
- 4197328
- Report Number(s):
- IDO-14482
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALUMINUM NITRATES
AMINES
AMMONIUM COMPOUNDS
BUTYL RADICALS
CHEMISTRY
COMPLEXES
DECONTAMINATION
FISSION PRODUCTS
FLUORINATED HYDROCARBONS
IRON CHLORIDES
KETONES
MANGANESE COMPOUNDS
METHYL RADICALS
NEPTUNIUM
NITRATES
OXIDATION
PLUTONIUM
PROPYL RADICALS
QUANTITATIVE ANALYSIS
REDUCTION
RUTHENIUM
SEPARATION PROCESSES
SOLVENT EXTRACTION
TTA
URANIUM
XYLENE
ZIRCONIUM