Extraction of transplutonium elements from carbonate solution with alkylpyrocatechol
The extraction of americium, berkelium, as well as Ce, Eu, Th, U, Zr, Cs, and Fe from carbonate solution with a solution of 4-(..cap alpha..,..cap alpha..-dioctylethyl)pyrocatechol (DOP) in toluene has been studied with the aim of finding conditions for their separation. It was established that the extraction of americium was very sensitive to changes in the concentration of potassium carbonate. The maximum recovery of americium (R greater than or equal to 90%) was observed from 0.1-0.5 mole/liter solutions of K/sub 2/CO/sub 3/ and the minimum (R = 2.5%) from 8 mole/liter K/sub 2/CO/sub 3/. The extraction of americium sharply increased when potassium hydroxide was introduced into the carbonate solutions. It was shown that by varying the concentration of potassium hydroxide a quantitative recovery of americium could be secured even from a saturated solution of potassium carbonate. Reextraction of the TPE was readily achieved with a 3 mole/liter solution of HCl. The system K/sub 2/CO/sub 3/(KOH)-DOP has potential application for the separation of Am from Bk, Ce, Cs, and the actinide elements as well as from Fe.
- OSTI ID:
- 6824321
- Journal Information:
- Sov. Radiochem. (Engl. Transl.); (United States), Journal Name: Sov. Radiochem. (Engl. Transl.); (United States) Vol. 25:2; ISSN SVRDA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400105* -- Separation Procedures
ACTINIDE COMPLEXES
ACTINIDES
ALKALI METAL COMPLEXES
ALKALI METAL COMPOUNDS
ALKALI METALS
AMERICIUM
AMERICIUM COMPLEXES
AROMATICS
BERKELIUM
BERKELIUM COMPLEXES
CARBON COMPOUNDS
CARBONATES
CERIUM
CERIUM COMPLEXES
CESIUM
CESIUM COMPLEXES
COMPLEXES
DATA
DEVELOPERS
DISPERSIONS
ELEMENTS
EUROPIUM
EUROPIUM COMPLEXES
EXPERIMENTAL DATA
EXTRACTION
HYDROXY COMPOUNDS
INFORMATION
IRON
IRON COMPLEXES
METALS
MIXTURES
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHENOLS
POLYPHENOLS
POTASSIUM CARBONATES
POTASSIUM COMPOUNDS
PYROCATECHOL
RARE EARTH COMPLEXES
RARE EARTHS
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
THORIUM
THORIUM COMPLEXES
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENTS
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM COMPLEXES
TRANSURANIUM ELEMENTS
URANIUM
URANIUM COMPLEXES
ZIRCONIUM
ZIRCONIUM COMPLEXES