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SEPARATION OF AMERICIUM AND CURIUM BY CHROMATOGRAPHIC TECHNIQUE USING TERTIARY PYRIDINE TYPE RESIN

The group separation of trivalent actinides and lanthanides and the mutual separation of americium and curium are necessary for the transmutation of americium. We have proposed the separation system based on the chromatography using the tertiary pyridine-type resin. In this separation system, the complete separation method of the trivalent actinides and lanthanides are already established using the hydrochloric acid and methanol mixed solvent. In the present work, the separation of americium and curium was investigated. It was found that the americium can be almost completely separated from curium by using the nitric acid and methanol mixed solvent.