SYSTEMATIC SEPARATION OF FISSION PRODUCTS BY SOLVENT EXTRACTION METHOD
n products, Zr/sup 95/-Nb/sup 95/, Ce/sup 144/ Pm/sup 147/, Y/sup 90/, Sr/sup 90/, Ru/sup 106/ s, and Cs/sup 137/, by the four-step liquid-liquid extractions was presented. First, Zr/sup 95/ and Nb/sup 95/ were extracted from a 5 M hydrochloric acid solution into chloroform with cupferron. Second, rare- earth nuclides, Ce/sup 144/ Pm/sup 147/, and Y/sup 90/ were extracted fr om an acetate buffered solution of pH 4 to 5 into chloroform with cupferron. Third, Sr/ sup 90/ was extracted from an acetate buffered solution of pH 8 into hexone (methyl isobutyl ketone) with TTA (2-thenoyl-trifluoroacetone). Fourth, Ru/sup 106/ was extracted from 5 M hydrochloric acid solution with TBP (tri-n-butyl phosphate)-kerosene in the presence of stannous chloride or extracted with TBP in the presence of hydroxylamine. Then Cs/sup 137/ r was left in the last aqueous solution. Strippings of nuclides extracted in the organic phases could be attained by shaking each organic phase with nitric acid. (auth)
- Research Organization:
- Kanazawa Univ., Japan
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-000282
- OSTI ID:
- 4126423
- Journal Information:
- Bull Chem. Soc. Japan, Journal Name: Bull Chem. Soc. Japan Vol. Vol: 33
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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Related Subjects
ACETONE
ALKYL RADICALS
AMINES
BUTYL PHOSPHATES
CERIUM 144
CESIUM 137
CHEMISTRY
CHLOROFORM
CUPFERRON
FISSION PRODUCTS
HEXANE
HYDROCARBONS
HYDROCHLORIC ACID
KEROSENE
KETONES
LIQUIDS
NIOBIUM 95
NITRIC ACID
ORGANIC CHLORINE COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PROMETHIUM 147
RUTHENIUM 106
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
STRONTIUM 90
TBP
TIN CHLORIDES
TTA
WATER
YTTRIUM 90
ZIRCONIUM 95