Preprint Article Version 1 This version is not peer-reviewed

Dispersion-Free Extraction of In(III) from HCl Solutions Using a Supported Liquid Membrane Containing HA324H+Cl- Ionic Liquid as Carrier

Version 1 : Received: 20 January 2020 / Approved: 23 January 2020 / Online: 23 January 2020 (04:07:43 CET)

How to cite: Alguacil, F.J.; López, F.A. Dispersion-Free Extraction of In(III) from HCl Solutions Using a Supported Liquid Membrane Containing HA324H+Cl- Ionic Liquid as Carrier. Preprints 2020, 2020010262 (doi: 10.20944/preprints202001.0262.v1). Alguacil, F.J.; López, F.A. Dispersion-Free Extraction of In(III) from HCl Solutions Using a Supported Liquid Membrane Containing HA324H+Cl- Ionic Liquid as Carrier. Preprints 2020, 2020010262 (doi: 10.20944/preprints202001.0262.v1).

Abstract

The transport of indium(III), from HCl solutions, across a supported liquid membrane in flat-sheet configuration was investigated, being the carrier the ionic liquid HA324H+Cl- (derived from the tertiary amine Hostarex A324 and hydrochloric acid). Different variables affecting the metal transport: hydrodynamic conditions in the source and receiving phases, metal and HCl concentrations in the source phase, and carrier concentration in the membrane phase, were investigated. Also the transport of indium(III) using carriers of various nature: ionic liquids, alcohol, ketone, phosphine oxide and phosphoric ester, was compared. The metal transport was modelled describing the transport mechanism as: diffusion across the source diffusion layer, a fast interfacial chemical reaction, and diffusion of the InCl4--carrier complex through the membrane support. Diffusional parameters for the transport of indium(III), from the experimental data and the model, were estimated.

Subject Areas

indium(III); ionic liquid; supported, liquid membrane; Hostarex A324; transport

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