EXTRACTION OF AMERICIUM AND LIGHT RARE EARTHS BY 2-ETHYL HEXYL PHOSPHONIC ACID 2-ETHYL HEXYL ESTER

Zhu Yongjun，

Jiao Rongzhou

Nuclear Science and Techniques

pp.140-145

Published in print 01 Aug 1995

24500

The extraction behavior of trace Am (Ⅲ) and Eu (Ⅲ) from nitrate medium with HEHEHP in kerosene was studied. LgD/pH and lgD/ [H₂A₂] dependence plots are given. Calculated values of lgK_ex for Eu, Nd and Am are-0.13±0.08, -1.36±0.10, -1.89 ±0.18, respectively. Extraction equilibrium equations were deduced under proper conditions. Calculated values of D_Am and D_RE are in accordance with experimental ones.

Americium/rare earths separationHEHEHP extractionNumerical solution

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