THE USE OF SOFT DONOR LIGANDS, 4-BENZOYL-2,4-DIHYDRO-5- METHYL-2-PHENYL-3H-PYRAZOL-3-THIONE AND 4,7-DIPHENYL-UO- PHENANTHROLINE, FOR IMPROVED SEPARATION OF TRIVALENT AMERICIUM AND EUROPIUM
- 1 January 1988
- journal article
- research article
- Published by Taylor & Francis in Solvent Extraction and Ion Exchange
- Vol. 6 (3) , 439-445
- https://doi.org/10.1080/07366298808917948
Abstract
The extraction of Am(ITI) and Eu(III) from aqueous 0.1 M NaClO4 using a mixture of 4-benzoyl-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-thione (HBMPPT) and 4,7-diphenyl-l,10-phenanthroline (DPPHEN) was studied. Individually, neither the HBMPPT nor the DPPHEN in toluene showed any extraction capabilities for Am(III) or Eu(III) under the experimental conditions used in this study. Combination of the two ligands, however, yielded a synergistic system which showed a strong preference for Am(III) over Eu(III). Slope analysis indicated that the extracted species took the form M(BMPPT)3(DPPHEN) for both metal ions studied. The separation factor DAm/DEu was 190 at pH = 3.7, [HBMPPT] = 3.0 x 10-2, and [DPPHEN] = 2.7 x 10-3.Keywords
This publication has 11 references indexed in Scilit:
- SYNERGISTIC EXTRACTION STUDIES OF Am(III) AND Eu(III) FROM PERCHLORIC ACID WITH 4-BENZOYL-2,4-DIHYDRO-5-METHYL-2-PHENYL-3H- PYRAZOL-3-THIONE (BMPPT) AND TRI-n-OCTYLPHOSPHINE OXIDE (TOPO) IN BENZENESolvent Extraction and Ion Exchange, 1987
- Preparation and crystal and molecular structures of uranyl complexes of 4-benzoyl-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-thione and the pyrazol-3-one analogueInorganica Chimica Acta, 1987
- Synergic extraction of thulium(III) with thenoyltrifluoroacetone and neutral unidentate and bidentate heterocyclic aminesInorganica Chimica Acta, 1985
- Comparison of the solution chemistry of the actinides and lanthanidesJournal of the Less Common Metals, 1983
- Mixed-ligand chelate extraction of lanthanides with 1-phenyl-3-methyl-4-acyl-5-pyrazolonesInorganic Chemistry, 1983
- Synergistic Extraction of Trivalent Actinides by Mixtures of 1-Phenyl-3-methyl-4-benzoyl-pyrazolone-5 and Neutral Oxo DonorsSeparation Science and Technology, 1982
- Mixed ligand chelate extraction of lanthanides with 1-phenyl-3-methyl-4-octanoyl-5-pyrazolone systemsAnalytica Chimica Acta, 1981
- Properties and Uses of Nitrogen and Sulfur Donors Ligands in Actinide SeparationsPublished by American Chemical Society (ACS) ,1980
- Synergismus bei der Extraktion einiger Chelatokomplexe des 1-Phenyl-3-methyl-4-benzoyl-5-pyrazolonsCollection of Czechoslovak Chemical Communications, 1973
- Iron(II) Determination in the Presence of Iron(III) Using 4,7-Diphenyl-1,10-phenanthroline.Analytical Chemistry, 1962