Статья
2022
Bulk Properties of Di(2-ethylhexyl)phosphoric Acid–Samarium (Europium, Gadolinium) Di(2-ethylhexyl)phosphate–Organic Solvent Solutions
I. I. Babayan, S. V. Kurdakova, N. A. Kovalenko, I. A. Uspenskaya
Российский журнал физической химии А
https://doi.org/10.1134/S0036024422010046
Abstract / Full Text
Complexes formed by di(2-ethylhexyl)phosphoric acid (D2EHPA) and lanthanides (Sm, Eu, Gd) are synthesized and characterized. The densities of D2EHPA–samarium (europium, gadolinium) di(2-ethylhexyl)phosphate–n-heptane (toluene, cyclohexane, n-hexane) solutions that form the organic phase in the processes of extraction of rare-earth elements (REE) are measured. It is shown that the Redlich–Kister model allows the bulk properties of the D2EHPA–REE di(2-ethylhexyl)phosphate–organic solvent systems to be described using data for D2EHPA–organic solvent binary subsystems and the density of liquid REE di(2-ethylhexyl)phosphate.
Author information
- Department of Chemistry, Moscow State University, 199991, Moscow, RussiaI. I. Babayan, S. V. Kurdakova, N. A. Kovalenko & I. A. Uspenskaya
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