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Minerals
Special Issues
Utilisation of Industrial Byproducts for Metallurgical Applications
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Utilisation of Industrial Byproducts for Metallurgical Applications

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 (26 January 2024) | Viewed by 1149

Special Issue Editors

Dr. Manish Kumar Sinha

E-Mail Website
Guest Editor
Material Science and Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, USA
Interests: waste utilization; hydrometallurgy; metal separation
Prof. Dr. Brajendra Mishra

E-Mail Website
Guest Editor
Material Science and Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, USA
Interests: mineral processing; materials recycling; hydrometallurgy; electrometallurgy; pyrometallurgy; characterization
Himanshu Tanvar

E-Mail Website
Guest Editor Assistant
Material Science and Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, USA
Interests: waste utilization; extractive metallurgy; recycling

Special Issue Information

Dear Colleagues,

The evergrowing demand for metals and energy has led to a tremendous increase in the processing of mineral ores and resources. The industrial processes for producing different commodities result in the production of large quantities of byproducts. The waste products consist of mining tailing, processing residue, slag, dust, and scrap metal traditionally discarded in landfills. These industrial residues include, but are not limited to, fly ash, bauxite residue, lead dross, blast furnace slag, and steel slag. This Special Issue invites original work highlighting the current state of the art and recent advancements in the utilization of industrial waste products in metallurgical applications, such as metal extraction, construction industries, and environmental fields. This also includes waste product characterization, process optimization, storage practices, ecological consequences, and techno-economic analysis.

Dr. Manish Kumar Sinha
Prof. Dr. Brajendra Mishra
Guest Editors

Himanshu Tanvar
Guest Editor Assistant

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

  • industrial waste
  • metallurgical residue
  • resource conservation
  • characterization
  • metal extraction
  • construction material
  • environmental impact

Published Papers (1 paper)

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Research

13 pages, 4141 KiB  
Article
Doping Silica Fume Enhances the Mechanical Strength of Slag/Fly Ash Geopolymer Paste under Frost Attack
by Sen Wang, Yuqing Liang, Duosi Mo, Chonghui Zhang, Jiwei Xue, Xuewen Song and Yachao Wang
Minerals 2023, 13(7), 925; https://doi.org/10.3390/min13070925 - 10 Jul 2023
Cited by 1 | Viewed by 697
Abstract
Benign design of alkali-activated slag/FA geopolymer paste has attracted increasing attention for optimizing its service performance. Therefore, the replacement of fly ash (FA) with 10 wt% silica fume (SF) is investigated by mechanical strength after freeze–thawing cycles and microstructure characterization. The results show [...] Read more.
Benign design of alkali-activated slag/FA geopolymer paste has attracted increasing attention for optimizing its service performance. Therefore, the replacement of fly ash (FA) with 10 wt% silica fume (SF) is investigated by mechanical strength after freeze–thawing cycles and microstructure characterization. The results show that an appropriate dosage (30 wt%) of slag is necessary to prepare heat-free curing alkali-activated slag/FA geopolymer paste with excellent mechanical performance. The SF/slag/FA (SF:slag:FA = 10:30:60, wt%) geopolymer paste exerts an enhanced compressive and flexural strength of 95.2 and 3.2 MPa, respectively. Meanwhile, the doped 10 wt% SF facilitates the propagation of (N, C)-A-S-H chains, rather than the formation of C-S-H gels. It is evidenced by the absent exothermic peak at about 861 °C from the differential scanning calorimetry (DSC) curves. The pores volume and tortuosity also rise for the pore diameter < 20 nm from mercury intrusion porosimeter (MIP) results, corresponding to an improved freezing–thawing resistance with the residual compressive strength of 52.8 MPa and the weight loss of 10.5% after 300 freeze–thawing cycles. It explores a cost-effective and benign facile approach to designing heat-free curing alkali-activated slag/FA geopolymer paste with good freezing–thawing resistance. Full article
(This article belongs to the Special Issue Utilisation of Industrial Byproducts for Metallurgical Applications)
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