Solvent extraction behaviour of some fission product elements with N,N-dihexyl octanamide and tri-n-butyl phosphate under simulated PUREX process conditions
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P. G. Kulkarni
Summary
Extraction behaviour of some fission product contaminants like Zr(IV), RuNO(III), La(III), Ce(III) and Nd(III) with 1.1 M solutions of N,N-dihexyl octanamide (DHOA) and tri-n-butyl phosphate (TBP) in n-dodecane from nitric acid medium has been investigated under conditions prevailing in the PUREX process. Results of the study reveal that the extraction of Zr(IV), La(III), Ce(III) and Nd(III) with 1.1 M DHOA is significantly lower than that of TBP. However, the extraction of RuNO(III) with DHOA is of the same order as that with TBP. The influence of uranium(VI) saturation of the organic phase on the extraction of Zr(IV) and RuNO(III) is evaluated. The effect of degradation products of DHOA (caprylic acid/n-dihexylamine) and TBP (di-n-butyl phosphoric acid) on the extraction of Zr(IV) is also examined. The study indicates the innocuous nature of the degradation products of DHOA towards the extraction of Zr(IV) under the PUREX process conditions. This is unlike the degradation products of TBP, the presence of which produce noticeable increase in the extraction of Zr(IV).
© by Oldenbourg Wissenschaftsverlag, München
Artikel in diesem Heft
- Preface - Special Issue: NUCAR 2005
- Incomplete fusion mechanism in 16O + 93Nb reaction at 6 MeV/nucleon: Recoil range measurements
- Extraction of actinides using N, N, N′, N′-tetraoctyl diglycolamide (TODGA): a thermodynamic study
- Extraction of neptunium(IV) by a mixture of 3-phenyl-4-acetyl-5-isoxazolone and tri-n-octyl phosphine oxide
- Third phase formation in the extraction of Th(NO3)4 by tri-2-methyl butyl phosphate from nitric acid media
- Solvent extraction behaviour of some fission product elements with N,N-dihexyl octanamide and tri-n-butyl phosphate under simulated PUREX process conditions
- Transport of uranium from nitric acid solution by non-dispersive solvent extraction using a hollow fibre contactor
- Fixation of some major fission products in NaZr2P3O12 ceramic employing microwave heating
- Synthesis, characterization and structural refinement of polycrystalline uranium substituted zirconolite CaZr0.9U0.1Ti2O7
- Effect of glass composition on diffusion of cesium in borosilicate glass
- Studies on diffusional mobility and selectivity of I− ion in plasticized anion-exchange membrane using radiotracer
- BEHSA grafted polymer for selective extraction of U(VI), Th(IV) and La(III) from acidic matrices and environmental samples – a green process
- Studies on the dissolution behaviour of ThO2 and (U,Th)O2 by a solid state reaction method
- Studies on some divalent metal α-isosaccharinic acid complexes
- Effect of humic acid on cesium sorption on silica colloids
- Preparation and preliminary biological evaluation of a 177Lu labeled nitroimidazole derivative for possible use in targeted tumor therapy
Artikel in diesem Heft
- Preface - Special Issue: NUCAR 2005
- Incomplete fusion mechanism in 16O + 93Nb reaction at 6 MeV/nucleon: Recoil range measurements
- Extraction of actinides using N, N, N′, N′-tetraoctyl diglycolamide (TODGA): a thermodynamic study
- Extraction of neptunium(IV) by a mixture of 3-phenyl-4-acetyl-5-isoxazolone and tri-n-octyl phosphine oxide
- Third phase formation in the extraction of Th(NO3)4 by tri-2-methyl butyl phosphate from nitric acid media
- Solvent extraction behaviour of some fission product elements with N,N-dihexyl octanamide and tri-n-butyl phosphate under simulated PUREX process conditions
- Transport of uranium from nitric acid solution by non-dispersive solvent extraction using a hollow fibre contactor
- Fixation of some major fission products in NaZr2P3O12 ceramic employing microwave heating
- Synthesis, characterization and structural refinement of polycrystalline uranium substituted zirconolite CaZr0.9U0.1Ti2O7
- Effect of glass composition on diffusion of cesium in borosilicate glass
- Studies on diffusional mobility and selectivity of I− ion in plasticized anion-exchange membrane using radiotracer
- BEHSA grafted polymer for selective extraction of U(VI), Th(IV) and La(III) from acidic matrices and environmental samples – a green process
- Studies on the dissolution behaviour of ThO2 and (U,Th)O2 by a solid state reaction method
- Studies on some divalent metal α-isosaccharinic acid complexes
- Effect of humic acid on cesium sorption on silica colloids
- Preparation and preliminary biological evaluation of a 177Lu labeled nitroimidazole derivative for possible use in targeted tumor therapy
