Modelling of Sustainable Extractive Metallurgy 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: closed (30 June 2020) | Viewed by 3056

Special Issue Editors


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Guest Editor
The Robert M. Buchan Department of Mining, Queens’s University, Kingston, ON K7L3N6, Canada
Interests: extractive metallurgy; pyrometallurgy; microwave processing; waste recycling; thermodynamic modelling
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
The Robert M. Buchan Department of Mining, Queen's University, Goodwin Hall, 25 Union Street, Room 354, Kingston, ON K7L 3N6, Canada
Interests: mineral processing technology; process and tailing environment; computer assisted process analysis; complex sulphides and pyrrhotite rejection

E-Mail Website
Guest Editor
The Robert M. Buchan Department of Mining, Queen's University, Goodwin Hall, 25 Union Street, Room 354, Kingston, ON K7L 3N6, Canada
Interests: hydrometallurgy and biohydrometallurgy; mineral processing wastes and their remediation; electrochemical dissolution of complex minerals (fundamental studies); flowsheet design and modeling

Special Issue Information

Dear Colleagues,

The field of extractive metallurgy continues to advance as higher grade orebodies are being depleted and wastes becomes more complex to recycle. Both mineral processors and extractive metallurgists have made considerable advances in the last few decades in developing new technologies. However, experimental testing of extractive metallurgy processes is becoming more expensive. Modelling techniques have advanced significantly over the last few decades and as a result process modelling has become a valuable tool to evaluate the technical feasibility of processes. In this regard, the purpose of this Special Issue is to invite researchers in this area to share their research via open access and, in this way, help the field progress. Papers on both physical and mathematical modelling are invited. The papers should present new ideas, research and technologies, which can lead to not only economic but more environmentally-friendly processes. The fields of mineral processing, hydrometallurgy and pyrometallurgy are included.

Prof. Dr. Chris Pickles
Prof. Dr. Sadan Kelebek
Prof. Dr. Ahmad Ghahreman
Guest Editors

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Published Papers (1 paper)

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Research

11 pages, 3242 KiB  
Article
Molecular Dynamics Simulation of Cetyl Phosphate Adsorption in Flotation of Magnesite and Pertinent Chemical Aspects
by Yuan Tang, Jin Yao, Wanzhong Yin and Sadan Kelebek
Minerals 2020, 10(9), 761; https://doi.org/10.3390/min10090761 - 27 Aug 2020
Cited by 10 | Viewed by 2587
Abstract
Magnesite ores are important resources in the production of value-added magnesium materials. Generally, low selectivity of conventional collectors and the requirement of a large amount of depressant has been a motivation for researchers to identify alternate collectors. In this work, the role of [...] Read more.
Magnesite ores are important resources in the production of value-added magnesium materials. Generally, low selectivity of conventional collectors and the requirement of a large amount of depressant has been a motivation for researchers to identify alternate collectors. In this work, the role of potassium cetyl phosphate (PCP) as a new collector in magnesite flotation is investigated using molecular dynamics (MD) simulations and chemical equilibria, electrokinetics and wettability. The results indicate that PCP exhibits a strong collecting ability for magnesite particles even with low concentrations. The presence of PCP leads to significant alterations in the electric double layer and contact angle behavior of magnesite, which results in rapid adsorption of PCP on magnesite surface. The results from chemical computations show that the monoanionic forms of PCP are the dominant species in the weakly acidic pH range, where monohydroxy magnesium species and the ion concentration of magnesite in suspension can be controlled by adjusting pH. The adsorption models indicate that the stable adsorption of PCP on magnesite surfaces occurs spontaneously, supporting the potentiality for selective magnesite flotation in its separation from other carbonate minerals. Full article
(This article belongs to the Special Issue Modelling of Sustainable Extractive Metallurgy Processes)
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