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Selective Disintegration of Ores and Physicochemical Properties of Minerals Under...
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Selective Disintegration of Ores and Physicochemical Properties of Minerals Under High-Power Electromagnetic Pulses and Other High Pulsed Powers Effects

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 (31 December 2022) | Viewed by 4816

Special Issue Editors

Dr. Igor Zh. Bunin

E-Mail Website
Guest Editor
Research Institute of Comprehensive Exploitation of Mineral Resources, Russian Academy of Sciences, 111020 Moscow, Russia
Interests: condensed matter physics; mineral processing; materials science; pulsed-power technologies; applied synergetics; fractals and multifractal analysis; analytical microscopy and spectroscopy
Prof. Dr. Valentine A. Chanturiya

E-Mail Website
Guest Editor
Research Institute of Comprehensive Exploitation of Mineral Resources, Russian Academy of Sciences, 111020 Moscow, Russia
Interests: mineral processing; geochemistry; pulsed-power technologies; rare metals minerals

Special Issue Information

Dear Colleagues,

Pulse Electrotechnologies (also referred to as ‘‘Pulsed Power’’) is the mainstream development of various technologies in the last XXI centuries. The effect of superstrong electromagnetic fields on materials is one of the Pulsed Power technological process directions, for example, no thermal action of strong electric fields on medical, biologic, and natural mineral objects. An analysis of modern condition of iron ore, gold-bearing, PGM and rare Earth ores, and other raw materials has shown a negative tendency of reducing the mineral resources extraction and worsening the quality of extracted ores. In the near future, the deposits presented mainly by fine-disseminated and rebellious ores will need to be developed. These ores demand essentially new solutions in the technology and technique of their beneficiation. Under such conditions, the highly efficient and ecology-friendly processing technologies become of the top priority.

The use of energy-saving high-voltage electric discharge technologies in the processing of rebellious minerals allows achieving effective separation of mineral complexes (selective disintegration and dissociation of mineral aggregates) and creating optimal conditions to enhance the contrast of the physicochemical and flotation properties of minerals and subsequent separation during flotation due to the appearance of hydrophobic and hydrophilic nanoformations on their surface.

Modern techniques (methods) of natural media (geomaterials) disintegration and surface modifications, which are closely related to the methods presented in the papers of this Special Issue include non-thermal effect of high-power nanosecond electromagnetic pulses (HPEMP), low-temperature plasma of dielectric barrier discharge (DBD), accelerated electron beam irradiation, pulse microwave frequency treatment, electric impulse treatment, electric hydrodynamic effect, magnetic impulse treatment, special electrochemical treatment, and other methods.

This Special Issue aims to contribute to the disclosure of all the applications of nontraditional (nonmechanical) high-enegetic (pulsed power) methods and technologies that should be created based on the intensification of the current and new approaches to mineral extraction from rebellious ore and mining waste, using the latest achievements of basic sciences and by combining physical, physicochemical, dressing, chemical and metallurgical processes.

Dr. Igor Zh. Bunin
Prof. Dr. Valentine A. Chanturiya
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

  • pulsed power technologies in mineral processing and extractive metallurgy
  • selective disintegration and surface modification of geomaterials (rocks, minerals and ores)
  • high-power (voltage) nanosecond electromagnetic pulses
  • low-temperature plasma of dielectric barrier discharge
  • precious metals mineral complexes, recovery, sulfides
  • flotation, surface, physicochemical and technological properties of minerals
  • future development

Published Papers (2 papers)

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Research

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26 pages, 13286 KiB  
Article
Extraction of Low-Dimensional Structures of Noble and Rare Metals from Carbonaceous Ores Using Low-Temperature and Energy Impacts at Succeeding Stages of Raw Material Transformation
by Tatiana Aleksandrova, Nadezhda Nikolaeva, Anastasia Afanasova, Artyem Romashev, Valeriya Aburova and Evgeniya Prokhorova
Minerals 2023, 13(1), 84; https://doi.org/10.3390/min13010084 - 05 Jan 2023
Cited by 8 | Viewed by 1513
Abstract
The possibility of extraction of metals from ores of different genesis, containing low-dimensional structures of rare and noble metals, increases their commodity value and, in a deficit for some types of metals, leads to the need to search and develop new nature-like technologies, [...] Read more.
The possibility of extraction of metals from ores of different genesis, containing low-dimensional structures of rare and noble metals, increases their commodity value and, in a deficit for some types of metals, leads to the need to search and develop new nature-like technologies, which can be used to extract from ores of different genesis almost all valuable noble, rare earth and nonferrous metals regardless of their concentration. This article presents the results of studying the processes of comminution and flotation to extract low-dimensional structures of noble and rare metals from carbonaceous ores using low-temperature and energy impacts at successive stages of the ores’ transformation. With the use of modern mineralogical, physical and chemical methods of research of composition, structure and properties of ores, the initial samples, concentrates and tailings after enrichment were studied. During the study, it was established that the difficulty of extraction of strategic metals from carbonaceous hard-enriched ores consists in fine dissemination of valuable components in concentrator minerals, mutual penetration of ore mineralization into each other and into rock-forming minerals, and in proximity of physical, chemical and technological properties of minerals, which complicates selective extraction of valuable components in concentrates. Also, difficulties in enrichment are associated with high flotation activity of waste rock, which significantly reduces the quality of concentrates. Full article
(This article belongs to the Special Issue Selective Disintegration of Ores and Physicochemical Properties of Minerals Under High-Power Electromagnetic Pulses and Other High Pulsed Powers Effects)
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Review

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23 pages, 3630 KiB  
Review
Advances in Pulsed Power Mineral Processing Technologies
by Valentine A. Chanturiya and Igor Zh. Bunin
Minerals 2022, 12(9), 1177; https://doi.org/10.3390/min12091177 - 19 Sep 2022
Cited by 4 | Viewed by 2443
Abstract
In Russia and globally, pulsed power technologies have been proposed based on the conversion of energy into a short-pulsed form and exposing geomaterials (minerals, rocks, and ores) to strictly dosed high-power pulsed electric and magnetic fields, beams of charged particles, microwave radiation, neutrons [...] Read more.
In Russia and globally, pulsed power technologies have been proposed based on the conversion of energy into a short-pulsed form and exposing geomaterials (minerals, rocks, and ores) to strictly dosed high-power pulsed electric and magnetic fields, beams of charged particles, microwave radiation, neutrons and X-ray quanta, and low-temperature plasma flows. Such pulsed energy impacts are promising methods for the pretreatment of refractory mineral feeds (refractory ores and concentration products) to increase the disintegration, softening, and liberation performance of finely disseminated mineral complexes, as well as the contrast between the physicochemical and process properties of mineral components. In this paper, we briefly review the scientific foundations of the effect of both high-power nanosecond electromagnetic pulses (HPEMP) and dielectric barrier discharge (DBD) in air on semiconductor ore minerals (sulfides, rare metals minerals) and rock-forming dielectric minerals. The underlying mechanisms of mineral intergrowth disintegration and changes in the structural and chemical states of the mineral surface when exposed to HPEMP and DBD irradiation are discussed. The high performance and potential limitations of pulsed energy impact and low-temperature plasma produced by DBD treatment of geomaterials are discussed in terms of the directional change in the process properties of the minerals to improve the concentration performance of refractory minerals and ores. Full article
(This article belongs to the Special Issue Selective Disintegration of Ores and Physicochemical Properties of Minerals Under High-Power Electromagnetic Pulses and Other High Pulsed Powers Effects)
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