Synthesis and Extraction Properties of 2-(3,4-Diphenylphosphinylpyrrolidin-1-yl)ethanol and 3-(3,4-Diphenylphosphinylpyrrolidin-1-yl)propanol
A. N. Turanova (https://orcid.org/0000-0002-5064-191X), V. K. Karandashevb (https://orcid.org/0000-0003-0684-272X), and V. K. Brelc, * (https://orcid.org/0000-0003-4645-3251)
aOsipyan Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432 Russia
bInstitute of Microelectronics Technology and High-Purity Materials, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432 Russia
cNesmeaynov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow, 119991 Russia
email: *v_brel@mail.ru
Received 21 September, 2022
Abstract—
A method for the synthesis of 2-(3,4-diphenylphosphinylpyrrolidin-1-yl)ethanol and 3-(3,4-diphenylphosphinylpyrrolidin-1-yl)propanol was developed, and extraction of U(VI), Th(IV), and lanthanides(III) from nitric acid solutions was studied. The stoichiometry of the extracted complexes was determined, and the influence of the extractant structure and the HNO3concentration in the aqueous phase on the efficiency of extraction of the metal ions into the organic phase was evaluated. It was found that 2-(3,4-diphenylphosphinylpyrrolidin-1-yl)ethanol exhibits high extraction ability with respect to actinides and lanthanides in nitrate media.
Keywords:
extraction,
uranium(VI),
thorium(IV),
lanthanides(III),
phosphine oxides
DOI: 10.1134/S1070363222120131