Innovations in Mineral and Metallurgical Extraction: Pathways to Industrial Implementation

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

Deadline for manuscript submissions: 31 December 2026 | Viewed by 1068

Editors


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Guest Editor
Western Australian School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Bentley, Perth, WA 6102, Australia
Interests: technospheric mining; resources recycling; extractive metallurgy; processing of critical and strategic minerals; waste treatment and environmental remediation
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Guest Editor
New Industry Creation Hatchery Centre, Tohoku University, Sendai 980-8579, Japan
Interests: sustainable metallurgy; critical minerals and materials recovery

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Guest Editor
Western Australia School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, 117 Egan Street, Kalgoorlie, WA 6430, Australia
Interests: rare earth and critical minerals extraction; ferrous metallurgy; surface coatings and modification

Special Issue Information

Dear Colleagues,

The global transition toward low-carbon technologies has placed unprecedented demand on mineral and metallurgical supply chains. At the same time, increasing environmental, social, and regulatory pressures require the minerals and metals industry to adopt sustainable and efficient processing and extraction methods. In this context, innovations in mineral and metallurgical extraction are central to bridging the gap between laboratory-scale research and large-scale industrial implementation.

This Special Issue, “Innovations in Mineral and Metallurgical Extraction: Pathways to Industrial Implementation”, aims to present emerging research that advances the development and optimization of novel extraction technologies. Emphasis is placed on translational research that integrates fundamental science with pilot-scale and industrial applications, enabling practical solutions for modern resource challenges.

This Special Issue welcomes original research articles that explore innovative approaches across the minerals value chain, including primary extraction, secondary resource utilization, process intensification, digitalisation, and environmental management. Interdisciplinary studies combining mineral processing, pyrometallurgy, hydrometallurgy, materials science, and environmental engineering are particularly welcomed, as they provide comprehensive insights into scalable and sustainable metallurgical solutions.

Dr. Richard Alorro
Dr. Yasushi Sasaki
Dr. Jonah Gamutan
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 250 words) can be sent to the Editorial Office for assessment.

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-anonymized 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

  • mineral processing
  • extractive metallurgy
  • hydrometallurgy
  • pyrometallurgy
  • critical minerals
  • materials science
  • technospheric mining
  • decarbonisation
  • electrometallurgy
  • flotation and physical separation
  • leaching technologies
  • solvent extraction and ion exchange
  • biohydrometallurgy
  • process intensification
  • process modelling and simulation
  • pilot-scale validation
  • technology scale-up
  • industrial implementation
  • secondary resource processing
  • recycling and circular economy
  • tailings reprocessing
  • energy-efficient processing
  • decarbonisation in metallurgy
  • sustainable extraction
  • automation and digitalisation in mining

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Published Papers (1 paper)

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Research

30 pages, 12928 KB  
Article
Thermodynamic Modeling of Selective Sulfate Roasting of Copper–Cobalt–Iron Sulfide Ores: Phase Transformation Pathways and Optimal Process Conditions
by Yanwen Sun, Guanyong Sun, Zhisheng Shi, Qunbo Yu and Le Wang
Minerals 2026, 16(5), 497; https://doi.org/10.3390/min16050497 - 9 May 2026
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Abstract
Sulfate roasting is a critical pyrometallurgical pre-treatment for extracting Cu and Co from low-grade Cu–Co–Fe sulfide ores, yet conventional phase diagrams provide limited quantitative guidance for process control. To address this gap, a multicomponent/multiphase thermodynamic equilibrium model based on Gibbs free energy minimization [...] Read more.
Sulfate roasting is a critical pyrometallurgical pre-treatment for extracting Cu and Co from low-grade Cu–Co–Fe sulfide ores, yet conventional phase diagrams provide limited quantitative guidance for process control. To address this gap, a multicomponent/multiphase thermodynamic equilibrium model based on Gibbs free energy minimization was developed to systematically investigate the oxidative roasting behavior of single sulfides (Cu2S, CoS2, FeS2) and their ternary mixture, with respect to air supply, temperature, and total pressure. The model reveals that each sulfide follows distinct, temperature-dependent phase transformation pathways: Cu2S forms the acid-leachable product CuO·CuSO4 at temperatures ≤ 588 °C with a stoichiometric air supply of 11.9 mol, transitioning to oxides at ≥800 °C; CoS2 converts completely to CoSO4 below 727 °C and to CoO at higher temperatures; FeS2 yields sulfate phases at low temperatures and iron oxides above 654 °C. In the ternary Cu2S–CoS2–FeS2 system, competitive oxidation reactions produce refractory mixed oxides (CuO·Fe2O3, CoO·Fe2O3) whose formation is governed by temperature, air supply, and sulfide molar ratios. The results demonstrate that low-temperature roasting (≤641 °C) with precisely controlled air supply maximizes the formation of water-soluble sulfates, providing a quantitative thermodynamic basis for process optimization and enhanced recovery of Cu and Co from complex sulfide ores. Full article
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