Comparison of Alkyl Phosphine Oxides in Polar and Non-Polar Diluents: Solvent Extraction, Spectroscopic, Conductivity and Theoretical Study
Year: 2025
Type: article
Abstract: Trialkyl phosphine oxides (TOPO) are a common use class of extractants in hydrometallurgy. Organic diluent has a significant influence on the extraction properties of the system. In this work, we investigated the influence of two diluents – non-polar (octane) and with high polarity (m-nitrobenzotrifluoride (F-3)) on the extraction properties for a TOPO’s derivatives. It was shown that f-elements extraction in octane is higher than with F-3. The obtained experimental data were supported by quantum-chemical calculations to evaluate the thermodynamics of the extraction process. In addition, the differences of complex formation of extractants with f-elements were established using UV-visible spectrophotometry, NMR spectroscopy and electrical conductivity measurements of organic phases.
Source: Figshare
Authors: Domnikov, Kirill, Guda, Alexander, Lopatin, Dmitrii, Arkhipova, Ekaterina, Ivanov, Anton, Tumanov, Vladislav, Fedin, Oleg, Matveev, Petr
Language: English
Subfield: Inorganic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W6958685163
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