Solvent extraction and extraction chromatography studies of uranium and plutonium from oxalate supernatant solutions were
carried out using 2-ethyl hexyl-2-ethyl hexyl phosphonic acid (PC88A). Based on the distribution data, it was inferred that
both the uranium and plutonium could be recovered satisfactorily from such a solution. These studies were found to be useful
in optimising the appropriate concentration of PC88A, HNO3, oxalic acid and temperature to recover more than 90% of plutonium from the large volumes of oxalate bearing waste solutions.
Spectral characteristics of the extractant and its complexing behavior with U(VI) was also studied using IR & FTIR.