THE EXTRACTION OF NEPTUNIUM(V) BY METHYLTRIOCTYLAMMONIUM CHLORIDE AND 1-PHENYL-3-METHYL-4-BENZOYL-5-PYRAZOLONE |
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| Authors: | Osamu TOCHIYAMA Yasushi INOUE Yuichi KUROKI |
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| Affiliation: | Department of Nuclear Engineering , Faculty of Engineering, Tohoku University , Aramaki-aza-aoba, Sendai, 980, Japan |
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| Abstract: | The synergistic effect of methyltrioctylammonium chloride (QCI) on the extraction of Np(V) by 1-phenyl-3-methyl-4-benzoyl-pyrazolone(HP) in benzene is studied over the pH range 2-6. This system extracts Np(V) better than any previously reported. The interaction of the extractants and monomer-dimer equilibria affect the distribution behavior of Np(V) in a complicated manner. Analysis of the results suggests that NpO2 + (M+) is extracted as mixed dimers, (QMP2QCl)o and (QMP2QP)o. |
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| Keywords: | Ion‐exchange iminiodiacetic acid low temperature salinity Antarctica metals |
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