Investigation of the extraction of samarium and gadolinium from leaching solutions of phosphorus-containing raw materials using solid extractants

AbstractIn accordance with the State Program of the Russian Federation «Development of Industry and Its Competitiveness», as well as the absence of balance deposits of rare earth metals on the territory of the Russian Federation, it is urgent to study methods for the extraction and separation of rar...
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Gespeichert in:

Autor*in:	Denis Sergeevich Lutskiy [verfasserIn] Elena Sergeevna Lukyantseva [verfasserIn] Valeria Yurievna Mikheeva [verfasserIn] Lyudmila Vladislavovna Grigorieva [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	Apatite concentrate extraction rare earth metals SES SES-D2EHPA solid extractant system

Übergeordnetes Werk:	In: Arab Journal of Basic and Applied Sciences - Taylor & Francis Group, 2018, 30(2023), 1, Seite 68-73
Übergeordnetes Werk:	volume:30 ; year:2023 ; number:1 ; pages:68-73

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1080/25765299.2022.2157954

Katalog-ID:	DOAJ08846945X

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author	Denis Sergeevich Lutskiy
spellingShingle	Denis Sergeevich Lutskiy misc Apatite concentrate misc extraction misc rare earth metals misc SES misc SES-D2EHPA misc solid extractant system misc Science misc Q Investigation of the extraction of samarium and gadolinium from leaching solutions of phosphorus-containing raw materials using solid extractants
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topic_title	Investigation of the extraction of samarium and gadolinium from leaching solutions of phosphorus-containing raw materials using solid extractants Apatite concentrate extraction rare earth metals SES SES-D2EHPA solid extractant system
topic	misc Apatite concentrate misc extraction misc rare earth metals misc SES misc SES-D2EHPA misc solid extractant system misc Science misc Q
topic_unstemmed	misc Apatite concentrate misc extraction misc rare earth metals misc SES misc SES-D2EHPA misc solid extractant system misc Science misc Q
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title	Investigation of the extraction of samarium and gadolinium from leaching solutions of phosphorus-containing raw materials using solid extractants
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title_full	Investigation of the extraction of samarium and gadolinium from leaching solutions of phosphorus-containing raw materials using solid extractants
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title_sort	investigation of the extraction of samarium and gadolinium from leaching solutions of phosphorus-containing raw materials using solid extractants
title_auth	Investigation of the extraction of samarium and gadolinium from leaching solutions of phosphorus-containing raw materials using solid extractants
abstract	AbstractIn accordance with the State Program of the Russian Federation «Development of Industry and Its Competitiveness», as well as the absence of balance deposits of rare earth metals on the territory of the Russian Federation, it is urgent to study methods for the extraction and separation of rare earth metals from technological solutions obtained during the processing of apatite concentrates. The article is devoted to the study of the kinetic features of solid-phase extraction of samarium (III) and gadolinium (III) from simulated industrial phosphoric acid solutions. Levextrel resine (co-polymerization product of styrene and divinylbenzene) containing Di-2-ethylhexylphosphoric acid (D2EHPA) – was used as a solid-phase extraction agent. Significant dependence of samarium (III) and gadolinium (III) extraction rate constant on the stirring rate was revealed using the formal first-order kinetic equation. Based on the linear dependences of the logarithm of the reaction rate constant on the reciprocal temperature, the activation energies for the extraction of Gd and Sm from phosphate model solutions were established, which, respectively, were 42.47 and 28.48 kJ/mol. The obtained values of the activation energies indicate that the limiting stage of the extraction process on a solid extractant can be considered a chemical reaction between ions of rare-earth metals and functional groups of the extractant. Separation of elements at the extraction stage is possible at temperature of 333 K under non-equilibrium conditions with separation coefficient up to 1.8 in 5 min.
abstractGer	AbstractIn accordance with the State Program of the Russian Federation «Development of Industry and Its Competitiveness», as well as the absence of balance deposits of rare earth metals on the territory of the Russian Federation, it is urgent to study methods for the extraction and separation of rare earth metals from technological solutions obtained during the processing of apatite concentrates. The article is devoted to the study of the kinetic features of solid-phase extraction of samarium (III) and gadolinium (III) from simulated industrial phosphoric acid solutions. Levextrel resine (co-polymerization product of styrene and divinylbenzene) containing Di-2-ethylhexylphosphoric acid (D2EHPA) – was used as a solid-phase extraction agent. Significant dependence of samarium (III) and gadolinium (III) extraction rate constant on the stirring rate was revealed using the formal first-order kinetic equation. Based on the linear dependences of the logarithm of the reaction rate constant on the reciprocal temperature, the activation energies for the extraction of Gd and Sm from phosphate model solutions were established, which, respectively, were 42.47 and 28.48 kJ/mol. The obtained values of the activation energies indicate that the limiting stage of the extraction process on a solid extractant can be considered a chemical reaction between ions of rare-earth metals and functional groups of the extractant. Separation of elements at the extraction stage is possible at temperature of 333 K under non-equilibrium conditions with separation coefficient up to 1.8 in 5 min.
abstract_unstemmed	AbstractIn accordance with the State Program of the Russian Federation «Development of Industry and Its Competitiveness», as well as the absence of balance deposits of rare earth metals on the territory of the Russian Federation, it is urgent to study methods for the extraction and separation of rare earth metals from technological solutions obtained during the processing of apatite concentrates. The article is devoted to the study of the kinetic features of solid-phase extraction of samarium (III) and gadolinium (III) from simulated industrial phosphoric acid solutions. Levextrel resine (co-polymerization product of styrene and divinylbenzene) containing Di-2-ethylhexylphosphoric acid (D2EHPA) – was used as a solid-phase extraction agent. Significant dependence of samarium (III) and gadolinium (III) extraction rate constant on the stirring rate was revealed using the formal first-order kinetic equation. Based on the linear dependences of the logarithm of the reaction rate constant on the reciprocal temperature, the activation energies for the extraction of Gd and Sm from phosphate model solutions were established, which, respectively, were 42.47 and 28.48 kJ/mol. The obtained values of the activation energies indicate that the limiting stage of the extraction process on a solid extractant can be considered a chemical reaction between ions of rare-earth metals and functional groups of the extractant. Separation of elements at the extraction stage is possible at temperature of 333 K under non-equilibrium conditions with separation coefficient up to 1.8 in 5 min.
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title_short	Investigation of the extraction of samarium and gadolinium from leaching solutions of phosphorus-containing raw materials using solid extractants
url	https://doi.org/10.1080/25765299.2022.2157954 https://doaj.org/article/7c686f0ab4d540d2ace7c53b605d12e8 https://www.tandfonline.com/doi/10.1080/25765299.2022.2157954 https://doaj.org/toc/2576-5299
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Investigation of the extraction of samarium and gadolinium from leaching solutions of phosphorus-containing raw materials using solid extractants

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