Slag Valorization for Advanced Metal Production, 2nd Edition

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

Deadline for manuscript submissions: 15 September 2025 | Viewed by 936

Special Issue Editors


E-Mail Website
Guest Editor
Department of Metallurgical & Materials Engineering, Montana Technological University, Butte, MT 59701, USA
Interests: iron and steel making; agglomeration; induration; smelting; direct reduction; high-temperature processing; blast furnace ferroalloys and their production; slag manipulation; metal manipulation; reaction kinetics
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Chemical Engineering, Michigan Technological University, Helena, MT 59701, USA
Interests: particulate processing; chemistry and thermodynamics of metals extraction; physical separation processes; sustainable raw materials production; oxidative and reductive bioleaching of metals
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

You are invited to contribute to this Special Issue, entitled Slag Valorization for Advanced Metal Production, 2nd Edition, and showcase your research.

The increasing demand for rare earth and battery metals, the need for resilient supply systems for critical minerals, and the move toward carbon-neutral manufacturing further emphasize the importance of being able to beneficiate and utilize the slag and other waste streams generated.

Hence, this Special Issue is organized for all to share their findings and advancements on (i) fundamental studies on liquid and solid slags and slag systems, (ii) hot-stage slag engineering, (iii) slag cleaning and metal recovery, (iv) slag treatment with pyrometallurgy, hydrometallurgy, and electrometallurgy, (v) slag conditioning, (vi) slag solidification, (vii) industrial case studies, (viii) process development and commercialization, (ix) environmental, economic, and life cycle analysis, and (x) production and evaluation of performance of slag-based products.

We believe that this Special Issue is a great opportunity to provide a guideline for our research community to tackle current and future critical challenges.

Please share your recent studies, thoughts, and hypotheses on slag valorization for advanced metal production and help teach future generations how to be guided by climate neutrality and resource-efficiency principles.

Dr. Basak Anameric
Dr. Timothy C. Eisele
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

  • slag
  • slag valorization
  • energy from slags
  • metal recycling
  • slag aggregates

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

Further information on MDPI's Special Issue polices can be found here.

Related Special Issue

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

24 pages, 5610 KiB  
Article
Relationship Between Thermodynamic Modeling and Experimental Process for Optimization Ferro-Nickel Smelting
by Erdenebold Urtnasan, Seong-Bong Heo, Joo-Won Yu, Chang-Ho Jung and Jei-Pil Wang
Minerals 2025, 15(2), 101; https://doi.org/10.3390/min15020101 - 22 Jan 2025
Viewed by 486
Abstract
Saprolite ores in nickel laterite deposits are pyrometallurgically processed to produce Fe-Ni alloy and Ni matte. The key to achieving the highest recovery degrees from nickel ore in electric arc furnaces and producing top-quality ferro-nickel alloys lies in maintaining optimal carbon consumption and [...] Read more.
Saprolite ores in nickel laterite deposits are pyrometallurgically processed to produce Fe-Ni alloy and Ni matte. The key to achieving the highest recovery degrees from nickel ore in electric arc furnaces and producing top-quality ferro-nickel alloys lies in maintaining optimal carbon consumption and carefully controlling the composition of the slag. This research work focused on finding the optimal smelting procedure for extracting ferro-nickel from calcined nickel ore. Comparing experimental data to the results of thermodynamic modeling using Factsage 8.2 software was a key part of the study. The nickel smelting process, which involved a carbon consumption of 4 wt.%, resulted in ferro-nickel with an Fe/Ni ratio of 4.89 and slag with a nickel content of just 0.017%. The structure and properties of nickel slag in the MgO-SiO2-FeO system were investigated by observing the changes in the MgO/SiO2 ratio. This study found a significant nickel recovery degree of 95.6% within the optimal M/S ratio range of 0.65 to 0.7. When the M/S ratio exceeds 0.7, iron-rich magnesium silicates (MgxFeySiO2+n) are generated within the slag. These compounds are released downwards due to their higher specific weight, restricting the movement of small metal particles and contributing to increased metal loss through the slag. Optimized slags could revolutionize smelting, increasing metal recovery while minimizing environmental impact. Full article
(This article belongs to the Special Issue Slag Valorization for Advanced Metal Production, 2nd Edition)
Show Figures

Figure 1

Back to TopTop