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Minerals
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Surface Chemistry Aspect of Hydrometallurgical Processing for Metal Recovery from...
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Surface Chemistry Aspect of Hydrometallurgical Processing for Metal Recovery from Ores

A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Mineral Processing and Extractive Metallurgy".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 1960

Special Issue Editors

Dr. Qingqing Huang

E-Mail Website
Guest Editor
Department of Mining Engineering, West Virginia University, Morgantown, WV 26506, USA
Interests: coal preparation; mineral processing; extractive metallurgy; critical metal recovery
Dr. Hassan Amini

E-Mail Website
Guest Editor
Department of Mining Engineering, West Virginia University, Morgantown, WV 26506, USA
Interests: mineral/coal processing; extractive metallurgy; critical mineral extraction
Dr. Xinbo Yang

E-Mail Website
Guest Editor
Department of Mining Engineering, University of Kentucky, Lexington, KY 40506, USA
Interests: mineral processing; hydrometallurgy; rare earth element and critical material extraction and purification; mineral resources sustainability; solution chemistry; froth flotation
Special Issues, Collections and Topics in MDPI journals
Dr. Wencai Zhang

E-Mail Website
Guest Editor
Department of Mining and Minerals Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
Interests: mineral processing; extractive metallurgy; critical elements recovery
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

It is our pleasure to announce the launch of a new Special Issue of the Minerals journal that will present a set of themed articles on “Surface Chemistry Aspect of Hydrometallurgical Processing for Metal Recovery from Ores”. Our Special Issue will cover a broad range of relevant topics of interest, such as various chemical phenomena occurring at surfaces and interfaces during the following hydrometallurgical processing for metal recovery: (1) metal leaching, (2) solvent extraction, (3) adsorption, (4) ion exchange, (5) electrowinning and electrorefining, (6) precipitation, (7) gaseous reduction, and (8) cementation. The Special Issue covers not only hydrometallurgical processing for metal recovery from primary ores but also secondary sources with the potential to serve as a promising feedstock. In addition, the recovery of currently high-demand metals, including critical and rare earth metals, with a focus on the surface chemistry aspect, will be of interest to this Special Issue.

We welcome suitable contributions from various interested professionals in this discipline.

Dr. Qingqing Huang
Dr. Hassan Amini
Dr. Xinbo Yang
Dr. Wencai Zhang
Guest Editors

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. Minerals 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 2400 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

  • surface chemistry
  • chemical phenomena
  • hydrometallurgical processing
  • metal recovery

Published Papers (1 paper)

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Research

14 pages, 7673 KiB  
Article
Selective Leaching of Vanadium from Calcification-Roasted Pellets of Vanadium–Titanium–Iron Concentrate by a Cyclic Two-Stage Sulfuric Acid Process
by Zhonghui Peng, Zhixiang Wang, Yang Li, Yongze Zhu and Keqiang Xie
Minerals 2022, 12(12), 1613; https://doi.org/10.3390/min12121613 - 15 Dec 2022
Cited by 1 | Viewed by 1254
Abstract
Here, a process for leaching vanadium from calcified roasting pellets (CPVC) of vanadium–titanium-iron concentrate by a two-stage sulfuric acid cycle was proposed. The first stage of leaching was mainly for the removal of silicon from the pellet and leaching solution. After the second [...] Read more.
Here, a process for leaching vanadium from calcified roasting pellets (CPVC) of vanadium–titanium-iron concentrate by a two-stage sulfuric acid cycle was proposed. The first stage of leaching was mainly for the removal of silicon from the pellet and leaching solution. After the second stage, the total leaching rates of vanadium and iron were 75.52% and 0.71%, respectively. The concentration of vanadium in the leaching solution reached 6.80 g/L, which can subsequently direct a vanadium precipitation process without extraction and enrichment. After the second roasting, the crushing strength of the pellets reached 2250 N, which met the requirement for blast furnace iron making. The Eh-pH diagrams of the V-Fe-H2O system at different temperatures were plotted. Thermodynamically, it was difficult to selectively leach vanadium and iron by changing the conventional acid leaching conditions. In addition, the pellets before and after leaching were analyzed. The grade of iron in the pellets increased slightly after leaching, and the main phases in the pellets remained as Fe2O3 and Fe9TiO15. The S in the sulfuric acid solution entered the leached pellets during the acid leaching reaction and was removed by the second roasting of the leached pellets. Full article
(This article belongs to the Special Issue Surface Chemistry Aspect of Hydrometallurgical Processing for Metal Recovery from Ores)
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