Separation of U(VI) from Th(IV) and rare earth elements (REEs) present in monazite leach solution (nitric acid medium) has been studied using tris(2-ethylhexyl) phosphate (TEHP) and tri-n-butyl phosphate (TBP) dissolved in n-paraffin as solvents under varying experimental conditions such as nitric acid, extractant and metal ion concentrations etc. There is an increase in distribution ratio of U(VI) (D_U) with increase in aqueous phase acidity up to 5M HNO₃ beyond which a decrease is observed. Typically for 110[1]3M U(VI), the D_U values increase from 8 (0.5M HNO₃) to 80 (5M HNO₃) for 1.1M TEHP, and from 2 (0.5M HNO₃) to 43 (5M HNO₃) for 1.1MTBP in n-paraffin. The separation factors of U(VI) (β: DU/DM) over metal ions (M) such as Th(IV) and Y(III) (chosen as a representative of heavy REEs) are better for TEHP than TBP at all nitric acid concentrations. Batch solvent extraction data have been used to construct the McCabe-Thiele diagrams for the recovery of U(VI) employing TEHP as the extractant. A process flow sheet has been proposed with 0.2M TEHP in n-paraffin as solvent for the recovery of U(VI) from simulated monazite leach solution in HNO₃ medium.