Mixed ligand chelate extraction of lanthanides with 1-phenyl-3-methyl-4-acyl-5-pyrazolones
A study of the equilibrium extraction behavior of series of representative tervalent lanthanide ions (La, Pr, Eu, and Yb) was caried out with either chloroform solutions of selected 1-phenyl-3-methyl-4-acyl-5-pyrazolones (acyl=decanoyl, phenacetyl, 3-phenylpropionyl, and p-tert-butylbenzoyl) (HP) alone or these solutions in combination with 1,10-phenanthroline (phen), trioctylphosphine oxide (TOPO), or methyltrioctylammonium chloride (R/sub 3/R'NCl). The results demonstrate that these lanthanides are extracted as LnP/sub 3/ or, in the presence of phen or TOPO, as LnP/sub 3/.phen or LnP/sub 3/.TOPO, or, in the presence of R/sub 3/R'N/sup +/Cl/sup -/, as R/sub 3/RN/sup +/LnP/sub 4//sup -/. The extraction constants (K/sub ex/), K/sub ex/(phen), K/sub ex/(TOPO), and K/sub ex/, are discussed in terms of structure-behavior interrelations.
- Research Organization:
- Univ. of Arizona, Tucson
- OSTI ID:
- 5217323
- Journal Information:
- Inorg. Chem.; (United States), Journal Name: Inorg. Chem.; (United States) Vol. 22:16; ISSN INOCA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Mixed ligand chelate extraction of lanthanides with 5,7-dibromo-8-quinolinol systems
Mixed ligand chelate extraction of lanthanides with N-m-trifluoromethylbenzoylphenylhydroxylamine systems