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Erschienen in:

2016 | OriginalPaper | Buchkapitel

9. Extraction of Metals with ABS

verfasst von : Isabelle Billard

Erschienen in: Ionic-Liquid-Based Aqueous Biphasic Systems

Verlag: Springer Berlin Heidelberg

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Abstract

The extraction of metallic ions by the use of mixtures of water and ILs, possibly completed by mineral acids, salts, and/or extracting agents, leading to ionic-liquid-aqueous biphasic systems (IL-ABS), is critically reviewed. In this chapter, the extraction performance induced by temperature or concentration stimulus is considered. First, the IL-ABS basic physicochemical properties are recalled, highlighting those of interest to metal extraction. Then, the main results are presented and discussed for systems ordered and categorized by IL types. Various extensions of the notion of IL-ABS are given and briefly discussed as an advocacy in favor of a continuous line between “real” ABS comprising ILs and other liquid-liquid extraction systems including one IL.

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Vorheriges Kapitel Extraction of Natural Phenolic Compounds with ABS

Nächstes Kapitel Surfactant Self-Assembly Within Ionic-Liquid-Based Aqueous Systems

Therefore Eq. 9.2 is not balanced in charge.

This concentration corresponds to the initial concentration in the single IL phase.

This corresponds to the counterintuitive (but stimulating) notion of precipitation of a liquid that could possibly be lying as an upper phase. This observation can also be found in the recent paper [53]. Dupont D, Depuydt D, and Binnemans K (2015): Overview of the effect of salts on biphasic ionic liquid/water solvent extraction systems: anion exchange, mutual solubility and thermomorphic properties. J. Phys. Chem. B 119:6747–6757.

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Titel: Extraction of Metals with ABS
verfasst von: Isabelle Billard
Verlag: Springer Berlin Heidelberg
Buch: Ionic-Liquid-Based Aqueous Biphasic Systems
Print ISBN: 978-3-662-52873-0

Electronic ISBN: 978-3-662-52875-4

Copyright-Jahr: 2016
DOI: https://doi.org/10.1007/978-3-662-52875-4_9

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