The effect of alkyl substitution on the extraction properties of BTPhen ligands for the partitioning of trivalent minor actinides and lanthanides in spent nuclear fuels
Joint Authors
Afsar, Ashfaq
Westwood, James
Harwood, Laurence M.
Hudson, Michael J.
Laventine, Dominic M.
Geist, Andreas
Source
Issue
Vol. 9, Issue 1 (31 Mar. 2014), pp.50-58, 9 p.
Publisher
Yarmouk University Deanship of Research and Graduate Studies
Publication Date
2014-03-31
Country of Publication
Jordan
No. of Pages
9
Main Subjects
Topics
Abstract EN
Bis-triazinylphenanthroline ligands (BTPhens), which contain additional alkyl (n-butyl and sec-butyl) groups attached to the triazine rings, have been synthesized, and the effects of this alkyl substitution on their extraction properties with Ln (III) and An (III) cations in simulated nuclear waste solutions have been studied.
The speciation of n-butyl-substituted ligand (C4-BTPhen) with some trivalent lanthanide nitrates was elucidated by 1H-NMR spectroscopic titrations.
These experiments have shown that the dominant species in solution were the 1:2 complexes [Ln (III)(BTPhen) 2], even at higher Ln (III) concentrations, and the relative stability of 2:1 to 1:1 BTPhen-Ln(III) complexes varied with different lanthanides.
As expected, sec-butylsubstituted ligand (sec-C4 BTPhen) showed higher solubility than C4-BTPhen in certain diluents.
A greater separation factor (SFAm / Eu = ca.
210) was observed for sec-C4-BTPhen compared to C4-BTPhen (SFAm / Eu = ca.
125) in 1-octanol at 4 M HNO3 solutions.
The greater separation factor may be due to the higher solubility of the 2:1 complex for sec-C4-BTPhen at the interface than the 1:1 complex of C4-BTPhen.
American Psychological Association (APA)
Afsar, Ashfaq& Westwood, James& Harwood, Laurence M.& Hudson, Michael J.& Laventine, Dominic M.& Geist, Andreas. 2014. The effect of alkyl substitution on the extraction properties of BTPhen ligands for the partitioning of trivalent minor actinides and lanthanides in spent nuclear fuels. Jordan Journal of Chemistry،Vol. 9, no. 1, pp.50-58.
https://search.emarefa.net/detail/BIM-368790
Modern Language Association (MLA)
Afsar, Ashfaq…[et al.]. The effect of alkyl substitution on the extraction properties of BTPhen ligands for the partitioning of trivalent minor actinides and lanthanides in spent nuclear fuels. Jordan Journal of Chemistry Vol. 9, no. 1 (Mar. 2014), pp.50-58.
https://search.emarefa.net/detail/BIM-368790
American Medical Association (AMA)
Afsar, Ashfaq& Westwood, James& Harwood, Laurence M.& Hudson, Michael J.& Laventine, Dominic M.& Geist, Andreas. The effect of alkyl substitution on the extraction properties of BTPhen ligands for the partitioning of trivalent minor actinides and lanthanides in spent nuclear fuels. Jordan Journal of Chemistry. 2014. Vol. 9, no. 1, pp.50-58.
https://search.emarefa.net/detail/BIM-368790
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 57-58
Record ID
BIM-368790