Synergistic solvent extraction of trivalent lanthanides with mixtures of 3-phenyl-4-benzoyl-5-isoxazolone and crown ethers
Journal Article
·
· Solvent Extraction and Ion Exchange
- CSIR, Trivandrum (India)
- Utkal Univ., Bhubaneshwar (India)
Synergistic solvent extraction of trivalent lanthanides such as Nd, Eu and Tm has been studied using mixtures of 3-phenyl-4-benzoyl-5-isoxazolone (HPBI) and 18-crown-6, 15-crown-5, benzo-15-crown-5, or dibenzo-18-crown-6. The results demonstrate that these trivalent metal ions are extracted into chloroform as Ln(PBI){sub 3} with HPBI alone and as Ln(PBI){sub 3}. CE in the presence of crown ethers (CE). The equilibrium constants of the above species are found to increase monotonically with the decreasing ionic radii of these trivalent lanthanides. The addition of a crown ether to the metal chelate system significantly enhances the extractability of these trivalent metal ions. 23 refs., 3 figs., 4 tabs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 466331
- Journal Information:
- Solvent Extraction and Ion Exchange, Journal Name: Solvent Extraction and Ion Exchange Journal Issue: 1 Vol. 15; ISSN 0736-6299; ISSN SEIEDB
- Country of Publication:
- United States
- Language:
- English
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