Separation of Samarium, Europium, and Gadolinium by Extraction with Organophosphorus Acids

Autor:	A. V. Val’kov, K. V. Ovchinnikov, S. N. Igumnov
Rok vydání:	2021
Předmět:	Samarium chemistry General Chemical Engineering Gadolinium Extraction (chemistry) Chemical reduction chemistry.chemical_element General Chemistry Europium Nuclear chemistry
Zdroj:	Theoretical Foundations of Chemical Engineering. 55:821-828
ISSN:	1608-3431 0040-5795
DOI:	10.1134/s0040579521040175
Popis:	The features of distribution are studied and a complex technology for the separation of samarium, europium, and gadolinium is proposed. This technology involves the initial isolation of 70–80% of the europium concentrate by extraction with organophosphorus acids, which makes it relatively easy to obtain pure compounds of samarium and gadolinium in subsequent operations. At the last stage, europium is isolated by chemical reduction and the captured samarium and gadolinium are returned to the beginning of the process. The content of the main substance in the resulting oxides is 99.9–99.99 wt %.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f11393ac54b318fcfa4066d5a82ebcc6 https://doi.org/10.1134/s0040579521040175 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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