Abstract
Phosphonium based ionic liquid with a novel anion, 1,1,1,5,5,5-hexafluoro-2,4-pentanedionate (HfAc) was synthesized and characterized by elemental analysis, 31P and 13C NMR. The functionalized ionic liquid showed interesting solvent extraction behavior for U(VI), Pu(IV), Am(III) and Eu(III) from the nitric acid medium when used in conjunction with toluene as diluent. Kinetics of extraction was found to be fast with equilibrium being attained within 15 min. The acid dependency of the distribution ratios for the radionuclides showed two different mechanisms at pH medium as well as at higher nitric acid concentration showing dual solvent behavior. The solvent was found to be reusable for at least six cycles when regenerated using hexafluoroacetylacetone prior to each cycle of extraction. Stripping of the loaded elements from the solvent was found to be feasible using a complex mixture of Guanidine carbonate and EDTA. The solvent showed significant distribution ratio of Eu(III) even in presence of higher concentration of Eu i.e. 30 mM. .
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
