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Metals
Special Issues
Advances in the Solvent Extraction of Metals
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Advances in the Solvent Extraction of Metals

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Extractive Metallurgy".

Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 5129

Special Issue Editor

Dr. Davide Ciceri

E-Mail Website
Guest Editor
Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, CA, United States
Interests: fertilizers; hydrometallurgy; microfluidics; mineral processing; mining solvent extraction

Special Issue Information

Dear Colleagues,

The extraction of metals from their ores is at the base of every civilization. Solvent extraction is an industrially relevant technique well-suited for the separation and purification of metals, on the laboratory bench as well as at large scale. With this technique, an aqueous solution containing a metal ion of interest is contacted with an organic solution containing a metal-selective extractant. Although it has been investigated for long time, solvent-extraction systems exhibit unique physicochemical properties which are particularly challenging to elucidate due to the presence of the aqueous/organic interface.

This Special Issue of Metals aims to present and discuss the latest advances in all aspects of the solvent extraction of metals. Reviews, articles, and short communications that focus on either fundamental or applied research are equally welcomed. A non-exhaustive list of topics of interest includes approaches to solvent-extraction intensification (energy, water, and chemicals reduction and improved extraction efficiency), interfacial and extractant chemistry, equilibrium and kinetic modelling, analytical techniques, and unit operations.

Dr. Davide Ciceri
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Metals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • hydrometallurgy
  • interfacial chemistry
  • metal extraction
  • metal purification
  • solvent extraction

Published Papers (1 paper)

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Research

16 pages, 10729 KiB  
Article
Solvent Extraction of Iron(III) from Al Chloride Solution of Bauxite HCl Leaching by Mixture of Aliphatic Alcohol and Ketone
by Artem Sokolov, Dmitry Valeev and Aleksandr Kasikov
Metals 2021, 11(2), 321; https://doi.org/10.3390/met11020321 - 12 Feb 2021
Cited by 13 | Viewed by 4757
Abstract
Research into the solvent extraction of iron(III) from a chloride solution after bauxite HCl leaching by neutral oxygen-containing extractants and their mixtures were studied and the iron(III) extraction degree from chloride solutions using alcohols is presented. The effect of dilution of alcohol with [...] Read more.
Research into the solvent extraction of iron(III) from a chloride solution after bauxite HCl leaching by neutral oxygen-containing extractants and their mixtures were studied and the iron(III) extraction degree from chloride solutions using alcohols is presented. The effect of dilution of alcohol with a ketone by an extraction mixture in relation to its effectiveness was investigated. The iron(III) was efficiently extracted by the mixture of 1-octanol and 1-decanol (70%) with 2-undecanone (30%) from hydrochloric bauxite leach liquor at an O:A ratio = 2-4:1 at an iron(III) concentration of 7.4 g/L and 6 M HCl. For the removal of iron-containing organic phase from impurities (Al, Ca, Cr) that are co-extracted with iron(III), we used two step scrubbing at O:A = 5:1 by 7 M HCl as a scrub solution. The iron(III) stripping at the O:A ratio is shown. Using counter-current cascade of extractors, it was possible to obtain an FeCl3 solution with the iron(III) content of 90.5 g/L and total impurities less than 50 mg/L. Full article
(This article belongs to the Special Issue Advances in the Solvent Extraction of Metals)
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