Tri-n-butyl phosphate (TBP) is most extensively used extractant in the nuclear fuel cycle. The
present work investigates the effect of substituents and their role in the basicity of
organophosphorus extractant on the uptake of actinides. In this connection, we have
synthesized six different analogues of TBP by altering one of its butoxy group. The
synthesized TBP derivatives were well characterized and evaluated for their solvent
extraction behavior towards U (VI), Th (IV), Pu (IV) and Am (III), as well as acid uptake as a …

Tri-n-butyl phosphate (TBP) is most extensively used extractant in the nuclear fuel cycle. The
present work investigates the effect of substituents and their role in the basicity of
organophosphorus extractant on the uptake of actinides. In this connection, we have
synthesized six different analogues of TBP by altering one of its butoxy group. The
synthesized TBP derivatives were well characterized and evaluated for their solvent
extraction behavior towards U (VI), Th (IV), Pu (IV) and Am (III), as well as acid uptake as a …