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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received December 23, 2016
Accepted January 17, 2017

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Precious Metals Extraction Processing in Chloride Media by Using Ionic Liquids as Novel Extractant Systems

Jyothi Rajesh Kumar In-Hyeok Choi Jin-Young Lee^†

Convergence Research Center for Development of Mineral Resources (DMR), Korea Institute of Geoscience & Mineral Resources (KIGAM), 124, Gwahak-ro, Yuseong-gu, Daejeon, 34132, Korea

jinlee@kigam.re.kr

Korean Chemical Engineering Research, August 2017, 55(4), 503-509(7), 10.9713/kcer.2017.55.4.503 Epub 4 August 2017

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Abstract

The present experimental study proposed two ionic liquids (ILs) namely [Aliquat 336] [HSO4] (prepared and characterized at our laboratory) and Cyphos 101 IL (supplied by Cytec Company) dissolved in two different diluents such as DCM (di-chloro-methane) and toluene applied for PMs extraction. The first IL [Aliquat 336] [HSO4] prepared and confirmed the formation of final product by using FT-IR and TGA studies. The primary experiment in solvent extraction processing is kinetic effect; 0 to 30 time varied for PMs by using two ILs and confirmed the optimized extraction equilibrium time. This study was conducted for PMs (Pt, Rh and Cu) extraction and separation from each other by using proposed ILs. This is the primary study of the utilizing green solvents such as ILs as an extractant system for Pt, Rh and Cu extraction and possible separation.

Keywords

Precious metals Extraction Separation Ionic liquids

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