Evaluation of cyanex272 in the emulsion liquid membrane system for separation of thorium

Abstract This study describes the use of the emulsion liquid membrane (ELM) technique to recover thorium (Th(IV)) from an aqueous nitrate solution. The components of the ELM were kerosene as a diluent, sorbitan monooleate (span 80) as a surfactant, bis(2,4,4-trimethylpentyl)phosphinic acid (Cyanex 2...

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Main Authors: Darya Ehyaie, Parisa Zaheri, Mohammad Samadfam, Fazel Zahakifar
Format: Article
Language:English
Published: Nature Portfolio 2024-12-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-024-83397-1
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author Darya Ehyaie
Parisa Zaheri
Mohammad Samadfam
Fazel Zahakifar
author_facet Darya Ehyaie
Parisa Zaheri
Mohammad Samadfam
Fazel Zahakifar
author_sort Darya Ehyaie
collection DOAJ
description Abstract This study describes the use of the emulsion liquid membrane (ELM) technique to recover thorium (Th(IV)) from an aqueous nitrate solution. The components of the ELM were kerosene as a diluent, sorbitan monooleate (span 80) as a surfactant, bis(2,4,4-trimethylpentyl)phosphinic acid (Cyanex 272) as an extractant, and H2SO4 solution as a stripping reagent. Th(IV) was more successfully extracted and separated under the following favorable conditions: Cyanex272 concentration of 0.11 mol/L; 0.65 mol/L H2SO4 as a stripping phase (internal phase); feed phase (external phase) pH of 1; internal-to-membrane phase volume ratio of 1; emulsion-to-external phase volume ratio of 0.4; contact time of 25 min; and agitation speed of 300 rpm. Under these conditions, the membrane transferred Th(IV) selectively from the real leach liquor without appreciable emulsion breakage or swelling.
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spelling doaj-art-f68752fc0eff47fe9b9b724ac8d5457a2025-01-05T12:26:49ZengNature PortfolioScientific Reports2045-23222024-12-0114111410.1038/s41598-024-83397-1Evaluation of cyanex272 in the emulsion liquid membrane system for separation of thoriumDarya Ehyaie0Parisa Zaheri1Mohammad Samadfam2Fazel Zahakifar3Department of Energy Engineering, Sharif University of TechnologyNuclear Fuel Cycle Research School, Nuclear Science and Technology Research InstituteDepartment of Energy Engineering, Sharif University of TechnologyNuclear Fuel Cycle Research School, Nuclear Science and Technology Research InstituteAbstract This study describes the use of the emulsion liquid membrane (ELM) technique to recover thorium (Th(IV)) from an aqueous nitrate solution. The components of the ELM were kerosene as a diluent, sorbitan monooleate (span 80) as a surfactant, bis(2,4,4-trimethylpentyl)phosphinic acid (Cyanex 272) as an extractant, and H2SO4 solution as a stripping reagent. Th(IV) was more successfully extracted and separated under the following favorable conditions: Cyanex272 concentration of 0.11 mol/L; 0.65 mol/L H2SO4 as a stripping phase (internal phase); feed phase (external phase) pH of 1; internal-to-membrane phase volume ratio of 1; emulsion-to-external phase volume ratio of 0.4; contact time of 25 min; and agitation speed of 300 rpm. Under these conditions, the membrane transferred Th(IV) selectively from the real leach liquor without appreciable emulsion breakage or swelling.https://doi.org/10.1038/s41598-024-83397-1ThoriumEmulsion liquid membraneCyanex272ExtractionBreakageSwelling
spellingShingle Darya Ehyaie
Parisa Zaheri
Mohammad Samadfam
Fazel Zahakifar
Evaluation of cyanex272 in the emulsion liquid membrane system for separation of thorium
Scientific Reports
Thorium
Emulsion liquid membrane
Cyanex272
Extraction
Breakage
Swelling
title Evaluation of cyanex272 in the emulsion liquid membrane system for separation of thorium
title_full Evaluation of cyanex272 in the emulsion liquid membrane system for separation of thorium
title_fullStr Evaluation of cyanex272 in the emulsion liquid membrane system for separation of thorium
title_full_unstemmed Evaluation of cyanex272 in the emulsion liquid membrane system for separation of thorium
title_short Evaluation of cyanex272 in the emulsion liquid membrane system for separation of thorium
title_sort evaluation of cyanex272 in the emulsion liquid membrane system for separation of thorium
topic Thorium
Emulsion liquid membrane
Cyanex272
Extraction
Breakage
Swelling
url https://doi.org/10.1038/s41598-024-83397-1
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AT parisazaheri evaluationofcyanex272intheemulsionliquidmembranesystemforseparationofthorium
AT mohammadsamadfam evaluationofcyanex272intheemulsionliquidmembranesystemforseparationofthorium
AT fazelzahakifar evaluationofcyanex272intheemulsionliquidmembranesystemforseparationofthorium