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Extraction of rare earth elements with 2-[2'-(methoxydiphenylphosphoryl)phenyldiazenyl]-4-tert-butylphenol in the presence of 1-butyl-3-methylimidazolium and trioctylmethylammonium picrates

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Abstract

Extraction of micro amounts of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y with solutions of 2-[2'-(methoxydiphenylphosphoryl)phenyldiazenyl]-4-tert-butylphenol in 1,2-dichloroethane in the presence of 1-butyl-3-methylimidazolium and trioctylmethylammonium picrates has been studied. The stoichiometry of extracted complexes has been determined, the effect of HNO3 concentration in aqueous phase on the efficiency of rare earth elements recovery into organic phase has been considered.

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Correspondence to A. N. Turanov.

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Original Russian Text © A.N. Turanov, V.K. Karandashev, V.E. Baulin, E.V. Kirillov, S.V. Kirillov, V.N. Rychkov, A.Yu. Tsivadze, 2016, published in Zhurnal Neorganicheskoi Khimii, 2016, Vol. 61, No. 11, pp. 1537–1540.

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Turanov, A.N., Karandashev, V.K., Baulin, V.E. et al. Extraction of rare earth elements with 2-[2'-(methoxydiphenylphosphoryl)phenyldiazenyl]-4-tert-butylphenol in the presence of 1-butyl-3-methylimidazolium and trioctylmethylammonium picrates. Russ. J. Inorg. Chem. 61, 1479–1482 (2016). https://doi.org/10.1134/S0036023616110218

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  • DOI: https://doi.org/10.1134/S0036023616110218

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