Convenient synthesis of (o-CF3Ph)2PS2H and evaluation in selective extraction of actinides over lanthanides
Creators
- 1. Tsinghua University, Beijing (China). Institute of Nuclear and New Energy Technology
- 2. Chinese Academy of Sciences, Beijing (China). Institute of Process Engineering
Description
A convenient method was established for the synthesis of bis(ortho-trifluoromethylphenyl) dithiophosphinic acid (o-CF3Ph)2PS2H. The three-step route consisted of reactions of PCl3 with Grignard's reagent, sulphur and NaHS in turn in liquid phase. The title compound was purified through the formation of ammonium salt (o-CF3Ph)2PS2NH4 and characterized with NMR and HRMS. Both chemical and radiation stability of title compound were examined. The investigation on selective extraction of Am3+ over Eu3+ was carried out from weak acidic aqueous phase with traces amount of radioactive elements 241Am and 152,154Eu. (o-CF3Ph)2PS2H in toluene afforded excellent Am3+ extraction ability, with distribution ratio up to around 150, meanwhile the excellent actinides selectivity was obtained. Such performance indicated the potential application of (o-CF3Ph)2PS2H in selective actinides extraction over lanthanides. (author)
Additional details
Publishing Information
- Journal Title
- Journal of Radioanalytical and Nuclear Chemistry
- Journal Volume
- 298
- Journal Issue
- 1
- Journal Page Range
- p. 531-536
- ISSN
- 0236-5731
- CODEN
- JRNCDM
INIS
- Country of Publication
- Hungary
- Country of Input or Organization
- Hungary
- INIS RN
- 44095929
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ACTINIDES; AMERICIUM; AQUEOUS SOLUTIONS; CHEMICAL REACTION YIELD; EUROPIUM; EXTRACTION; MASS SPECTROSCOPY; NMR SPECTRA; ORGANIC SOLVENTS; PURIFICATION; RARE EARTHS; STABILITY; SYNTHESIS; TOLUENE
- Descriptors DEC
- ACTINIDES; ALKYLATED AROMATICS; AROMATICS; DISPERSIONS; ELEMENTS; HOMOGENEOUS MIXTURES; HYDROCARBONS; METALS; MIXTURES; NONAQUEOUS SOLVENTS; ORGANIC COMPOUNDS; RARE EARTHS; SEPARATION PROCESSES; SOLUTIONS; SOLVENTS; SPECTRA; SPECTROSCOPY; TRANSPLUTONIUM ELEMENTS; TRANSURANIUM ELEMENTS; YIELDS
Optional Information
- Notes
- 22 refs.