Clean Utilization of Nonferrous Metal Resources

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 4469

Special Issue Editor


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Guest Editor
Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China
Interests: flotation theory; efficient and clean utilization of metal mineral resources
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nonferrous metals are the basic materials of national economic development, and represent important strategic resources of the country. The current efforts towards pollution prevention and control in the mining, mineral processing, metallurgy and material processing of nonferrous metal resources are very active. Obviously, the clean utilization of nonferrous metal resources is not only an essential way to solve the shortage of mineral resources, but also a realistic choice to achieve the strategic goal of the sustainable development of the nonferrous metal industry. Therefore, detailed studies on the comprehensive utilization of complex and refractory nonferrous metal resources, technologies for saving energy and water, the recycling of waste, and the prevention of heavy metal pollution are now major areas of research, and provide the theoretical basis and technical support for the clean utilization of nonferrous metal resources. In the light of these considerations, this Special Issue invites the latest advances in the clean utilization of nonferrous metal resources in order to facilitate the sustainable development of nonferrous industry. Consequently, submissions dealing with clean utilization aspects of nonferrous metal resources are welcome and encouraged.

Prof. Dr. Shaojun Bai
Guest Editor

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Keywords

  • nonferrous metal ore
  • comprehensive utilization of resources
  • flotation theory and technology
  • metallurgy
  • environmental pollution

Published Papers (2 papers)

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Research

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12 pages, 5051 KiB  
Article
Lithium Enrichment by the Carbothermal Reduction of Spodumene Ore and the Preparation of Manganese-Silicon Alloy
by Mingliang Yang, Ke Yan, Rui Ji, Xi Cui, Wenzheng Zhang and Tao Qu
Minerals 2022, 12(10), 1324; https://doi.org/10.3390/min12101324 - 20 Oct 2022
Cited by 1 | Viewed by 1442
Abstract
To increase the low utilization rate of spodumene ore during lithium extraction, spodumene ore was subjected to carbothermic reduction to enrich lithium and prepare a manganese-silicon alloy. The experimental results showed that during thermal reduction, lithium was volatilized and collected in the condensation [...] Read more.
To increase the low utilization rate of spodumene ore during lithium extraction, spodumene ore was subjected to carbothermic reduction to enrich lithium and prepare a manganese-silicon alloy. The experimental results showed that during thermal reduction, lithium was volatilized and collected in the condensation zone. The Li2O content in the lithium condensate was 41.72%, which was 10.85 times higher than that of the raw material. The effects of varying reduction temperatures and times on the lithium volatilization rate and direct yield of Mn5Si3 alloy were investigated. The best process conditions were 1873 K for 6 h. Under these conditions, the lithium volatilization rate was 97.65%, and the direct yield of Mn5Si3 was 86.47%. Full article
(This article belongs to the Special Issue Clean Utilization of Nonferrous Metal Resources)
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Review

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20 pages, 3154 KiB  
Review
Treatment Technology and Research Progress of Residual Xanthate in Mineral Processing Wastewater
by Jiaqiao Yuan, Suqi Li, Zhan Ding, Jie Li, Anmei Yu, Shuming Wen and Shaojun Bai
Minerals 2023, 13(3), 435; https://doi.org/10.3390/min13030435 - 18 Mar 2023
Cited by 10 | Viewed by 2613
Abstract
Xanthate is the most widely used and effective collector in the flotation of sulfide minerals. However, the residual xanthate in flotation wastewater may cause serious environmental pollution and even human health hazards. At present, a variety of treatment technologies have been developed to [...] Read more.
Xanthate is the most widely used and effective collector in the flotation of sulfide minerals. However, the residual xanthate in flotation wastewater may cause serious environmental pollution and even human health hazards. At present, a variety of treatment technologies have been developed to degrade xanthate pollutants in wastewater, with the aim of meeting safe discharge standards. This work reviews the research status of xanthate wastewater treatment technologies in recent years. Treatment technologies are evaluated, including coagulation flocculation, adsorption, microbiological, Fenton, ozone oxidation, and photocatalytic methods. The reaction mechanisms and advantages, as well as disadvantages, of the various treatment technologies are summarized. Future research on the treatment of xanthate wastewater should focus on combined methods, which will be conducive to achieving a high efficiency and low cost, with no secondary pollution, and with the aim of generating further original and innovative technologies. Full article
(This article belongs to the Special Issue Clean Utilization of Nonferrous Metal Resources)
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