Abstract
Derivatives of hydrazine and α-branched tertiary carboxylic acids of fractions C10 and C15–C19: 1,2-diacylhydrazines C10, hydrazides C15 –C19, N ′,N-dimethylhydrazides C15–C19, N ′,N ′-dimethylhydrazides C10 and hydrazides C10 in the form of 0.1–0.5 M solutions in kerosene were tested as extractants of lanthanide ions Y, La, Ce, Sm, Er, and Yb in acidic aqueous media. The best extraction properties were exhibited by hydrazide C15–C19. The conditions and the number of stages of the extraction (from solutions containing 0.5 M H2SO4) and stripping (stripping agent 5 M HCl) were determined using La3+ as an example, until the stripping was saturated (up to 43 g L–1 La3+). The distribution constants (D) and separation (β) were calculated for the listed lanthanides.
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Notes
Acid. Material Safety Data Sheet. Re-issued by Momentive Specialty Chemicals B. V. Revision date 06/29/2011.
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ACKNOWLEDGMENTS
The study was carried out using the equipment of the Center for Collective Use “Research of Materials and Substances” of the Perm Federal Research Center, Ural Branch, Russian Academy of Sciences.
Funding
The research was carried out with the financial support of the Russian Foundation for Basic Research within the framework of the scientific project no. 19-03-00039.
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Translated from Zhurnal Prikladnoi Khimii, No. 5, pp. 590–595, January, 2021 https://doi.org/10.31857/S0044461821050066
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Radushev, A.V., Nikitina, V.A. & Batueva, T.D. α-Branched Tertiary Carboxylic Acid Hydrazides as Extractants of Rare-Earth Metal Ions from Sulfate Media. Russ J Appl Chem 94, 595–600 (2021). https://doi.org/10.1134/S1070427221050062
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DOI: https://doi.org/10.1134/S1070427221050062