Recent Trends in Extractive Metallurgy

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Chemical Processes and Systems".

Deadline for manuscript submissions: 20 September 2024 | Viewed by 379

Special Issue Editors


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Guest Editor
Facultad de Metalurgia, Universidad Autónoma de Coahuila, Monclova 25710, Mexico
Interests: hydrometallurgy; wastewater and wastes treatment; thermodynamic and kinetics analysis
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Department of Chemical Engineering and Metallurgy, University of Sonora, Hermosillo 83000, Mexico
Interests: hydrometallurgy; precious metals recovery; solvent extraction; metals recycling from PCB
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Academic Area of Earth Sciences and Materials, Institute of Basic Sciences and Engineering, Autonomous University of the State of Hidalgo, Pachuca 42184, Mexico
Interests: leaching; metals recovery; metals concentration; precious metals
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Special Issue Information

Dear Colleagues,

Metal extraction processes must continuously improve, innovate and adapt to new technologies (information technology, artificial intelligence, big data, and machine learning) and environmental and sustainability challenges while maintaining productivity and profitability.

However, deposits are becoming more complex (and the grades of values are scarcer), requiring new interdisciplinary approaches that enable extraction with the least environmental impact, greater energy efficiency and lowest cost. This represents areas of opportunity where research (both fundamental and technological) towards innovation and technological development of extractive metallurgy continue to be the base for transformation in current and future processes.

In this context, this Special Issue invites the scientific and technological community to present papers and studies on the different areas and disciplines of extractive metallurgy (hydrometallurgy, pyrometallurgy, and electrometallurgy) and those related to it, such as mineral processing (gravimetric concentration, magnetic, and flotation). The application of extractive metallurgy operations and processes for the values recovery, recycling, reduction and treatment of mining and metallurgical wastes (and urban wastes, such as electronic scrap) is also welcome.

Prof. Dr. Francisco Raul Carrillo Pedroza
Prof. Dr. Jesús Leobardo Valenzuela-García
Prof. Dr. Eleazar Salinas-Rodríguez
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. Processes 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

  • extractive metallurgy process
  • hydrometallurgy
  • pyrometallurgy
  • electrometallurgy
  • flotation
  • remedation
  • green processes

Published Papers (1 paper)

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Research

15 pages, 673 KiB  
Article
Hydrometallurgical Processing of a Low-Grade Sulfide Copper–Nickel Ore Containing Pt and Pd
by Elena Latyuk, Andrey Goryachev, Vitaliy Melamud and Aleksandr Bulaev
Processes 2024, 12(6), 1213; https://doi.org/10.3390/pr12061213 - 13 Jun 2024
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Abstract
The goal of the present work was to study the recovery of copper, nickel, and platinum group metals (PGMs) (Pt and Pd) from low-grade copper–nickel ore containing pyrrhotite, pentlandite, and chalcopyrite by column bioleaching followed by cyanidation. The ore sample contained the following: [...] Read more.
The goal of the present work was to study the recovery of copper, nickel, and platinum group metals (PGMs) (Pt and Pd) from low-grade copper–nickel ore containing pyrrhotite, pentlandite, and chalcopyrite by column bioleaching followed by cyanidation. The ore sample contained the following: Ni—0.74%, Cu—0.23%, Fe—14.8%, Stotal8.1%, and Ssulfide—7.8%. The Pt and Pd contents in the ore sample were 0.2535 and 0.515 g/t, respectively. Biological leaching in columns was carried out at 25, 35, and 45 °C for 140 days. A mixed culture of acidophilic microorganisms was used as an inoculum. Cu and Ni extraction depended on temperature, and at 45 °C, copper and nickel recovery was the highest, being 2.1 and 1.8 times higher than that at 25 °C, respectively. As a result, up to 35% of nickel and up to 10% of copper were recovered by bioleaching within 140 days. Bioleaching resulted in an increase in Pt and Pd recovery by cyanidation, but the effect on Pd recovery was insignificant. Pt recovery varied in the range of 3–40% depending on process conditions; Pd recovery was 44–55%. Full article
(This article belongs to the Special Issue Recent Trends in Extractive Metallurgy)
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