Liquid/liquid metal extraction: Phase diagram topology resulting from molecular interactions between extractant, ion, oil and water

We consider the class of surfactants called “extractants” since they specifically interact with some cations and are used in liquid-liquid separation processes. We review here features of water-poor reverse micelles in water/oil/ extractant systems as determined by combined structural studies includ...

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Veröffentlicht in:The European physical journal. ST, Special topics Special topics, 2012-11, Vol.213 (1), p.225-241
Hauptverfasser: Bauer, C., Bauduin, P., Dufrêche, J.F., Zemb, T., Diat, O.
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container_title The European physical journal. ST, Special topics
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creator Bauer, C.
Bauduin, P.
Dufrêche, J.F.
Zemb, T.
Diat, O.
description We consider the class of surfactants called “extractants” since they specifically interact with some cations and are used in liquid-liquid separation processes. We review here features of water-poor reverse micelles in water/oil/ extractant systems as determined by combined structural studies including small angle scattering techniques on absolute scale. Origins of instabilities, liquid-liquid separation as well as emulsification failure are detected. Phase diagrams contain the same multi-phase domains as classical microemulsions, but special unusual features appear due to the high spontaneous curvature directed towards the polar cores of aggregates as well as rigidity of the film made by extracting molecules.
doi_str_mv 10.1140/epjst/e2012-01673-4
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subjects Applied sciences
Atomic
Chemical engineering
Chemical Sciences
Classical and Continuum Physics
Condensed Matter Physics
Exact sciences and technology
Liquid-liquid extraction
Materials Science
Measurement Science and Instrumentation
Molecular
Optical and Plasma Physics
or physical chemistry
Physics
Physics and Astronomy
Review
Theoretical and
title Liquid/liquid metal extraction: Phase diagram topology resulting from molecular interactions between extractant, ion, oil and water
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