Rapid method of separating Am(VI) from transplutonium and rare-earth elements on a cation exchanger in phosphoric acid
Measurements have been made on cation-exchanger sorption of americium, other actinoids, and certain rare-earth elements from 0.1-2.0 M H/sub 3/PO/sub 4/ when the elements have been oxidized with ammonium persulfate alone or mixed with silver phosphate. There are considerable differences in behavior between the americium and the other elements on account of its being oxidized to a higher valency state. Measurements have been made on the effects of acid and oxidant concentrations and of the oxidation and elution conditions on the americium yield when the exchanger is treated with H/sub 3/PO/sub 4/. Optimum oxidation conditions have been chosen, and a rapid method has been devised for separating americium(VI) from other transplutonium elements and REE on Dowex 50 /times/ 8, where the eluent is 0.1-1.0 M H/sub 3/PO/sub 4/ plus 0.05 M (NH/sub 4/)/sub 2/S/sub 2/O/sub 8/.
- OSTI ID:
- 6088995
- Journal Information:
- Sov. Radiochem. (Engl. Transl.); (United States), Vol. 29:6; Other Information: Translated from Radiokhimiya; 29: No. 6, 814-818(Nov-Dec 1987)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AMERICIUM 241
ISOTOPE SEPARATION
AMERICIUM COMPOUNDS
ION EXCHANGE
ION EXCHANGE MATERIALS
SORPTIVE PROPERTIES
ADSORPTION
AMMONIUM COMPOUNDS
BERKELIUM 250
CALIFORNIUM 249
CERIUM 144
CURIUM 243
EINSTEINIUM 253
EINSTEINIUM 254
EUROPIUM 152
EUROPIUM 153
EUROPIUM 154
NEPTUNIUM 237
OXIDATION
OXIDIZERS
PERSULFATES
PHOSPHORIC ACID
PLUTONIUM 239
RARE EARTHS
SILVER PHOSPHATES
TRANSPLUTONIUM ELEMENTS
URANIUM 233
VALENCE
ACTINIDE COMPOUNDS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
AMERICIUM ISOTOPES
BERKELIUM ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CALIFORNIUM ISOTOPES
CERIUM ISOTOPES
CHEMICAL REACTIONS
CURIUM ISOTOPES
DAYS LIVING RADIOISOTOPES
EINSTEINIUM ISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTS
EUROPIUM ISOTOPES
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
HEAVY ION DECAY RADIOISOTOPES
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
HYDROGEN COMPOUNDS
INORGANIC ACIDS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOTOPES
MATERIALS
METALS
NEON 24 DECAY RADIOISOTOPES
NEPTUNIUM ISOTOPES
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PLUTONIUM ISOTOPES
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SEPARATION PROCESSES
SILVER COMPOUNDS
SORPTION
STABLE ISOTOPES
SULFUR COMPOUNDS
SURFACE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSPLUTONIUM COMPOUNDS
TRANSURANIUM COMPOUNDS
TRANSURANIUM ELEMENTS
URANIUM ISOTOPES
YEARS LIVING RADIOISOTOPES
400202* - Isotope Effects
Isotope Exchange
& Isotope Separation