Interfacial Separation of Organic Phase Components in Systems Containing Aqueous Colloidal Solutions of Sodium Di-(2-Ethylhexyl)Phosphate

Autor:	V. I. Kuzmin, N. V. Gudkova, D. V. Kuzmin, I. V. Peterson, M. N. Leskiv, Alexander I. Bulavchenko
Rok vydání:	2021
Předmět:	Aqueous solution 010304 chemical physics Conductometry Hydrometallurgy Chemistry Sodium Extraction (chemistry) Inorganic chemistry chemistry.chemical_element 02 engineering and technology Surfaces and Interfaces 021001 nanoscience & nanotechnology 01 natural sciences Toluene chemistry.chemical_compound Colloid and Surface Chemistry Dynamic light scattering 0103 physical sciences Physical and Theoretical Chemistry 0210 nano-technology Phosphoric acid
Zdroj:	Colloid Journal. 83:88-96
ISSN:	1608-3067 1061-933X
DOI:	10.1134/s1061933x21010075
Popis:	Interfacial separation of components of extractants based on di-(2-ethylhexyl)phosphoric acid (di-2EHPA) in toluene and a mixture of di-2EHPA with trioctylamine in toluene has been studied in the course of treatment with aqueous sodium hydroxide solutions yielding an organic phase and an aqueous colloidal solution of di-2EHPA sodium salt. Conditions have been found for the isolation of almost pure di-2EHPA and toluene, as well as di-2EHPA and a trioctylamine solution in toluene. The aqueous colloidal solutions have been studied by conductometry, dynamic light scattering, and 1H-NMR spectroscopy. The considered systems are promising to be used in hydrometallurgy for improving parameters of extraction of metals and their concentrating in re-extracts.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::36dff798dcd8e4c925d1755691e62015 https://doi.org/10.1134/s1061933x21010075 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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