Crown ethers as synergistic agents in the solvent extraction of trivalent lanthanides with 8-hydroxyquinoline

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creativework.keywords8-hydroxyquinoline, Dibenzo-18-crown-6, Dibenzo-24-crown-8, Lanthanides separation factors, Synergistic extraction
creativework.publisherSerbian Chemical Societyen
dc.contributor.authorAtanassova M.
dc.date.accessioned2024-07-10T14:27:03Z
dc.date.accessioned2024-07-10T14:47:02Z
dc.date.available2024-07-10T14:27:03Z
dc.date.available2024-07-10T14:47:02Z
dc.date.issued2008-01-01
dc.description.abstractThe liquid extraction of the 13 lanthanides with mixtures of 8-hydroxyquinoline (HQ) and crown ethers (S) dibenzo-18-crown-6 (DB18C6) and dibenzo-24-crown-8 (DB24C8) in 1,2-dichloroethane as a diluent from chloride medium at constant ionic strength μ = 0.1 was investigated. The composition of the extracted species was established as LnQ3 with HQ alone and as LnQ3·S in the presence of a crown ether. The values of the equilibrium constants were calculated. The addition of DB18C6 to the metal chelate system improved the extraction efficiency, while a weak synergistic enhancement was found when the metals were extracted with mixtures of HQ-DB24C8. The parameters of the extraction process were determined and the separation factors between two adjacent lanthanides(III) were calculated.
dc.identifier.doi10.2298/JSC0801029A
dc.identifier.issn0352-5139
dc.identifier.scopusSCOPUS_ID:39449139028en
dc.identifier.urihttps://rlib.uctm.edu/handle/123456789/133
dc.language.isoen
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=39449139028&origin=inward
dc.titleCrown ethers as synergistic agents in the solvent extraction of trivalent lanthanides with 8-hydroxyquinoline
dc.typeArticle
oaire.citation.issue1
oaire.citation.volume73
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