Separation of berkelium (IV) from trivalent transplutonium elements on ion-exchangers in solutions of phosphoric acid
The dependences of Am, Cm, Bk, Cf and Es behavior on anion- and cation-exchangers in solutions of 0.1-8.0 M H/sub 3/PO/sub 4/ on acid concentration and oxidant content in solution (KBrO/sub 3/) or in resin (PbO/sub 2/) have been studied. Significant differences in distribution coefficients of Bk and other transplutonium elements (TPE) have been found that can be explained by Bk oxidation to the tetravalent state. A simple and effective method of Bk (IV) separation from trivalent TPE has been developed. The method was applied to the isolation of isotopes Bk-249 and Bk-250; the purification factor of Bk (IV) from other TPE is 10/sup 4/-10/sub 6/ per cycle. The possibility of Bk separation from bromate and phosphate ions by its sorption on a cation-exchanger from diluted H/sub 3/PO/sub 4/ solutions with subsequent desorption by the mineral acid has been shown. 20 references, 8 figures.
- Research Organization:
- Institute of Geochemistry and Analytical Chemistry, Moscow, USSR
- OSTI ID:
- 5227747
- Journal Information:
- Solvent Extr. Ion Exch.; (United States), Journal Name: Solvent Extr. Ion Exch.; (United States) Vol. 3:4; ISSN SEIED
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400105* -- Separation Procedures
400702 -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDES
ADSORPTION
AMERICIUM
BERKELIUM
BROMATES
BROMINE COMPOUNDS
CALIFORNIUM
CHEMICAL REACTIONS
CURIUM
DATA
DESORPTION
DISPERSIONS
DISTRIBUTION FUNCTIONS
EINSTEINIUM
ELEMENTS
EXPERIMENTAL DATA
FUNCTIONS
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
ION EXCHANGE
METALS
MIXTURES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDATION
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PH VALUE
PHOSPHATES
PHOSPHORIC ACID
PHOSPHORUS COMPOUNDS
POLYMERS
RESINS
SOLUTIONS
SORPTION
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM ELEMENTS
VALENCE