Uranium and plutonium recovery by tributylphosphate solvation and trioctylamine ion association mechanisms

الملخص EN

In this work a flow sheet has been put for the recovery of uranium and plutonium from 2.5M nitric acid solutions using 17.5 % tributes phosphate (TBP) and 2.5 % trioctylamine (TOA) in kerosene diluent.

The fission products (resulting from irradiated of uranium samples in nuclear research reactor) were removed from the desired actinides U & Pu .The organic phase TBP / TOA / Kerosene, containing both actinides U & Pu were stripped using 0.1 M HNO3.

Trioctylamine (2.5 volume ratio) in methylene has been used in conditions appropriate for the recovery of Pu.

From the experiments done using mixer-settler, the concentration of uranium in the organic phase in such conditions was very low, not exceeding parts of a million.