Abstract
Plutonium from acidic waste solutions has been recovered quantitatively using tri- n-octylamine (TnOA) in xylene and americium using a mixture of octylphenyl- N- N- diisobutylcarbamoylmethylphosphine oxide (CMPO) and TBP in dodecane by extraction and extraction chromatographic methods. The Pu( IV) TnOA species extracted into the organic phase from higher nitric acid concentrations has been confirmed as (R 3NH) 2Pu(NO 3) 6 (where R 3N = TnOA by employing slope analysis as well as spectrophotometric studies.
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