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), Vol. 3:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
AMERICIUM
ION EXCHANGE
BERKELIUM
ADSORPTION
DESORPTION
CALIFORNIUM
CURIUM
EINSTEINIUM
BROMATES
DISTRIBUTION FUNCTIONS
EXPERIMENTAL DATA
OXIDATION
PH VALUE
PHOSPHATES
PHOSPHORIC ACID
RESINS
SOLUTIONS
VALENCE
ACTINIDES
BROMINE COMPOUNDS
CHEMICAL REACTIONS
DATA
DISPERSIONS
ELEMENTS
FUNCTIONS
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
METALS
MIXTURES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHOSPHORUS COMPOUNDS
POLYMERS
SORPTION
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM ELEMENTS
400105* - Separation Procedures
400702 - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials