Sustainable Extraction of Copper, Nickel and Zinc and Their By-Products from Ores, Recycled Materials and Wastes through Hydrometallurgical Processes

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

Deadline for manuscript submissions: 30 April 2024 | Viewed by 1390

Special Issue Editors


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Guest Editor
Department of Mining Engineering, Pontificia Universidad Católica de Chile, Santiago 8320000, Chile
Interests: leaching; hydrometallurgy; minerals; mineral processing; mineral characterization; extraction and processing industry; mining; clay minerals; extractive metallurgy; leaching processes; separation techniques; iron ore; sulfides; chemical precipitation; heap leaching; sulfuric acids; chalcopyrite recovery of metals from e-waste

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Guest Editor
Department of Chemical Engineering, University of Cape Town, Cape Town 7701, South Africa
Interests: exploration of fundamental reaction and transport phenomena during the leaching of minerals, especially the (bio)leaching of sulphide minerals, and mathematical modelling, particularly of heap leach processes; copper, zinc and nickel sulphide bioleaching; chloride and ammoniua leaching; Au and PGM cyanide leaching; extraction of REEs from ion adsorption clays; evaluating extractive technologies in a broader socio-economic context, both locally and globally, in terms of commodity cycles, such as Cu and Zn production and metals recovery from e-waste in the local South African context
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Guest Editor
1. Institute for Biological and Medical Engineering, Faculties of Engineering, Medicine and Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 8320000, Chile
2. Department of Hydraulic and Environmental Engineering, School of Engineering, Pontificia Universidad Católica de Chile, Santiago 8320000, Chile
Interests: biofilm formation of bioleaching microorganisms; fluorescence microscopy, massive image analyses and OMICS techniques; microbial genetics and extracellular polymeric substances analysis and characterization; characterization of interactions and cell–cell communication in bioleaching consortia; changes in microbial diversity during bioleaching of chalcopyrite-containing ores; EPS production and analysis and development of methodologies for massive image analysis of biofilms of axenic and mixed bioleaching microbial consortia on pyrite and chalcopyrite surfaces
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Copper (Cu), nickel (Ni) and zinc (Zn) are vital non-ferrous metals in the context of a sustainable future. The importance of copper in any form of electricity generation, storage and usage cannot be overstated; it will only increase dramatically with the transition to a de-carbonized future. Similarly, Ni will be of critical significance as a battery mineral, and Zn  will be of paramount importance in ensuring long service life of construction and piping materials due to its extensive use in corrosion protection.

Classic base metals are derived from the processing of primary ores and concentrates, as well as the re-processing of historic mine tailings and recycling of scrap and end-of-life equipment.  The extraction and refining of primary base metals and their common companion metals (Mo, Au and U for C; Co and PGMs for Ni; Pb, Ge and In for Zn) usually involves hydrometallurgical processing to some degree. The respective technologies and chemistries employed are being continuously developed to address challenges such as declining ore-grades, changing mineralogy, energy supply, carbon footprint issues, SHE concerns, etc. Many of the processes applied to primary ores and concentrates are similar or adaptable to those relevant to processing of secondary resources, but with some modifications to account for the different nature and composition of the feed materials and the scale of operation.

This Special Issue is focused on new developments in the sustainable hydrometallurgical processing of materials for which Cu, Ni and Zn are the primary metal commodities recovered, with a special emphasis on the co-recovery of companion metals:  Mo, Ag, Au and U (by-products of Cu); Co and PGMs (by-products of Ni); Pb, Ge, and In (by-products of Zn).

This Special Issue will primarily cover four areas:

Area 1. Chemistries: acid ferric sulphate leaching and bioleaching, chloride leaching, ammonia leaching, leaching aids and catalysts, novel reagents.

Area 2. Leaching Technologies: atmospheric and pressure leaching, heap leaching, novel leaching systems.

Area 3. Separation: SX, IX, precipitation, and electrowinning for selective metal recovery from mixed leach liquors.

Area 4. Flowsheets: evaluation and comparison of complete flowsheets for the comprehensive recovery of metals from primary, secondary or blended feeds and the ensuing waste streams.

Dr. Lilian Velásquez-Yévenes
Prof. Dr. Jochen Petersen
Dr. Mario Vera
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

  • base metal
  • leaching and bioleaching
  • leaching technology
  • chloride leaching
  • e-waste leaching
  • innovation and process improvement
  • new reagents, materials and technologies
  • solvent extraction and ion exchange
  • precipitation

Published Papers (1 paper)

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Research

17 pages, 7688 KiB  
Article
Enhanced Chalcopyrite Dissolution in Acidic Culture Medium: The Impact of Arsenopyrite Presence
by Xiangdong Shangguan, Yuandong Liu, Run Liu, Kan Wang, Wissal Belqadi, Jiayu He, Yan Tong, Li Shen, Weimin Zeng, Xueling Wu, Runlan Yu and Xinlei Sun
Minerals 2024, 14(1), 50; https://doi.org/10.3390/min14010050 - 30 Dec 2023
Cited by 1 | Viewed by 1008
Abstract
Nowadays, research on promoting the dissolution of chalcopyrite is important. As a natural symbiotic mineral of chalcopyrite, arsenopyrite will have an impact on the dissolution of chalcopyrite. This paper shows the influence of arsenopyrite on the dissolution of chalcopyrite in an acidic culture [...] Read more.
Nowadays, research on promoting the dissolution of chalcopyrite is important. As a natural symbiotic mineral of chalcopyrite, arsenopyrite will have an impact on the dissolution of chalcopyrite. This paper shows the influence of arsenopyrite on the dissolution of chalcopyrite in an acidic culture medium. The leaching results showed that adding arsenopyrite increased the leaching concentration of copper by 332 mg/L. The residues showed a decrease in sulfur through X-ray diffraction analysis (XRD) and an increase in dissolution degree through scanning electron microscope (SEM). Electrochemical experiments have shown that the rest potential of arsenopyrite is higher than that of chalcopyrite, so there is a galvanic interaction, and the impact on chalcopyrite is greater than that of arsenopyrite. The polarization curve also proves this. Under the interaction of galvanic couples, the reduction of S0 production and the enhancement of Cu2+ release can promote the dissolution of chalcopyrite. In addition, X-ray photoelectron spectrometer (XPS) analysis under the action of galvanic coupling indicates that more SO42− is generated on the surface of chalcopyrite, replacing Sn2−/S0, and SEM shows a stronger corrosion morphology. All results confirm that the electrochemical effect between arsenopyrite and chalcopyrite promotes the dissolution of chalcopyrite in the acidic culture medium. Full article
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