Extraction of Vanadium (IV) with DI-2-Ethylhexylphosphoric Acid |
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| Authors: | Lyudmila Kurbatova Pavel Slepukhin Dmitrii Kurbatov Elena Zabolotskaya |
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| Institution: | 1. Institute of Solid State Chemistry , Ural Branch of the Russian Academy of Sciences , Ekaterinburg , Russia;2. Institute of Organic Synthesis , Ural Branch of the Russian Academy of Sciences , Ekaterinburg , Russia |
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| Abstract: | Abstract It was established with the use of electron and ESR spectroscopic methods that in the presence of sodium sulfate, the extraction of vanadium (IV) with di-2-ethylhexylphosphoric acid takes place by a cation-exchange mechanism giving rise to two complex compounds of vanadium (IV) oxocation with sulfuric and di-2-ethylhexylphosphoric acid anions. The vanadium (IV) oxocation sulfate complex extracted in the solid state was examined with X-ray structural analysis. It was shown that the vanadium (IV) oxocation sulfate complex trihydrate crystallizes in the centrosymmetrical space group to form dimers with bridging sulfate groups. |
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| Keywords: | Vanadium di-2-ethylhexylphosphoric acid ESR spectroscopy electronic spectra |
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