Ionic-Liquid-Based Acidic Aqueous Biphasic Systems for Simultaneous Leaching and Extraction of Metallic Ions
authors Gras, M; Papaiconomou, N; Schaeffer, N; Chainet, E; Tedjar, F; Coutinho, JAP; Billard, I
nationality International
journal ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
author keywords hydrometallurgy; ionic liquids; metal recycling; noble metals; sustainable chemistry
keywords SEPARATION; WATER; GOLD; PRECIPITATION; SOLUBILITIES; IMIDAZOLIUM; PD(II)
abstract The first instance of an acidic aqueous biphasic system (AcABS) based on tributyltetradecyl phosphonium chloride ([P-44414][Cl]) and an acid is here reported. This AcABS exhibits pronounced thermomorphic behavior and is shown to be applicable to the extraction of metal ions from concentrated acidic solutions. Metal ions such as cobalt(II), iron(III), platinum(IV) and nickel(II) are found to partition preferentially to one of the phases of the acidic aqueous biphasic system and it is here shown that it successfully allows the difficult separation of Co-II from Ni-II, here studied at 24 and 508 degrees C.
publisher WILEY-V C H VERLAG GMBH
issn 1433-7851
year published 2018
volume 57
issue 6
beginning page 1563
ending page 1566
digital object identifier (doi) 10.1002/anie.201711068
web of science category Chemistry, Multidisciplinary
subject category Chemistry
unique article identifier WOS:000423494500022
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journal analysis (jcr 2019):
journal impact factor 12.959
5 year journal impact factor 12.659
category normalized journal impact factor percentile 91.808
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