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Minerals
Special Issues
Flotation of Fine Particle Ores and Metallic Ores
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Flotation of Fine Particle Ores and Metallic Ores

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 March 2024) | Viewed by 3646

Special Issue Editors

Dr. Jie Liu

E-Mail Website
Guest Editor
College of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
Interests: mineral processing; flotation; extractive metallurgy; comprehensive utilization of resources; waste and recycling
Dr. Ruiqi Xie

E-Mail Website
Guest Editor
Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China
Interests: mineral processing; flotation; comprehensive utilization of resources
Dr. Zhihang Li

E-Mail Website
Guest Editor
School of Earth Science and Resources, Chang’an University, Xi’an 710054, China
Interests: froth flotation; inter-particles behaviors; serpentine mineral; AFM measurements; nano-scale force
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With the extensive mining of ores, in recent years, many minerals have shown the characteristics of a fine particle size, and the feeding size is becoming increasingly finer. Meanwhile, with the strengthening of the strategic position of metals, more and more emphasis has been placed on metallic ores. Therefore, many scholars around the key scientific issues of fine mineral flotation and metallic ore flotation achieved some technological breakthroughs and technological progress through the research and development of new flotation equipment, new flotation reagents, new floatation processes, and the controlling of mineral surface properties by chemical or physical pre-treatment. The research results effectively promote the comprehensive utilization level and sustainable development of fine ores and metallic ores. This Special Issue aims at providing comprehensive references for the flotation of fine particle ores and metallic ores. We welcome both fundamental research and industrial application research on the flotation of fine particle ores and metallic ores.

We hope that this Special Issue will contribute to obtaining a better understanding of the flotation of fine ores and metallic ores, and to promote the green, low-carbon, and sustainable development of mineral resources.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

  • Flotation equipment;
  • Flotation reagents;
  • Floatation process;
  • Mineral surface properties.

We look forward to receiving your contributions.

Dr. Jie Liu
Dr. Ruiqi Xie
Dr. Zhihang Li
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

  • mineral resources
  • mineral processing
  • fine particles
  • metallic ores
  • mechanism
  • flotation equipment
  • flotation reagents
  • floatation process
  • mineral surface properties

Published Papers (3 papers)

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Research

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15 pages, 4966 KiB  
Article
Oily Bubble Flotation of Coal Macerals of Shendong Jurassic Coal
by Jinzhou Qu, Chang Luo, Zhanglei Zhu, Quan An, Xinyi Li, Honglin Zhu, Jing Chang, Zhen Li, Anning Zhou, Songjiang Chen and Ningning Zhang
Minerals 2024, 14(4), 328; https://doi.org/10.3390/min14040328 - 22 Mar 2024
Viewed by 468
Abstract
The comprehensive quality enhancement and grading of coal are crucial methods for unlocking the high value-added and low-carbon utilization of coal resources. In this work, the influence of oily bubbles on the flotation of Shendong Jurassic vitrinite-rich coal and inertinite-rich coal was studied [...] Read more.
The comprehensive quality enhancement and grading of coal are crucial methods for unlocking the high value-added and low-carbon utilization of coal resources. In this work, the influence of oily bubbles on the flotation of Shendong Jurassic vitrinite-rich coal and inertinite-rich coal was studied via flotation tests, Fourier transform infrared (FT-IR) spectroscopy, X-ray photoelectron spectroscopy (XPS), contact angle detection, and induction time measurements. FT-IR and XPS analyses demonstrated that the surface of inertinite-rich coal contains more hydrophilic oxygen-containing functional groups. Contact angle and induction time measurements showed that the vitrinite-rich coal is more hydrophobic than inertinite-rich coal, and that for both air and oily bubbles, the induction time on the surface of vitrinite-rich coal is shorter than that on the surface of inertinite-rich coal. In addition, rather remarkably, the induction times for both vitrinite-rich coal and inertinite-rich coal are significantly reduced by oily bubbles. Finally, a better flotation performance for oily bubble flotation of vitrinite-rich coal and inertinite-rich coal was found. It appears that oily bubble flotation is an efficient method for enhancing the recovery of vitrinite-rich coal and inertinite-rich coal. Full article
(This article belongs to the Special Issue Flotation of Fine Particle Ores and Metallic Ores)
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Review

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14 pages, 837 KiB  
Review
Review on K-Feldspar Mineral Processing for Extracting Metallic Potassium as a Fertilizer Resource
by Meijuan Chen, Liyun Zhao, Yu Huang, Lijuan Fu, Lijun Ma, Kehao Chen and Zhaolin Gu
Minerals 2024, 14(2), 168; https://doi.org/10.3390/min14020168 - 04 Feb 2024
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Abstract
The K-feldspar mineral is an insoluble potassium resource with a high potassium content and the most extensive and abundant reserves. To address the insufficient supply of soluble potassium fertilizers in China, the application of appropriate processing methods to extract potassium from K-feldspar and [...] Read more.
The K-feldspar mineral is an insoluble potassium resource with a high potassium content and the most extensive and abundant reserves. To address the insufficient supply of soluble potassium fertilizers in China, the application of appropriate processing methods to extract potassium from K-feldspar and transform it into a soluble potassium fertilizer is of great significance. To date, various techniques have been developed to extract potassium from K-feldspar and produce a soluble potassium fertilizer. This review summarizes the main methods, i.e., the hydrothermal, high-temperature pyrolysis, microbial decomposition, and low-temperature methods, for potassium extraction from K-feldspar. The mechanisms, efficiencies, impact parameters, and research progress of each potassium extraction method are comprehensively discussed. This study also compares the merits and drawbacks of the individual methods in terms of potassium extraction efficiency and practical operating conditions. The species of additives, reaction temperature, reaction time, particle size of K-feldspar, and dosage of additives significantly affected the potassium extraction efficiency. Moreover, the combination of different methods was very effective in improving the potassium extraction efficiency. This review elaborates the research prospects and potential strategies for the efficient utilization of the K-feldspar mineral as a fertilizer resource. Full article
(This article belongs to the Special Issue Flotation of Fine Particle Ores and Metallic Ores)
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21 pages, 3654 KiB  
Review
Review on the Beneficiation of Li, Be, Ta, Nb-Bearing Polymetallic Pegmatite Ores in China
by Siyang Li, Jie Liu, Yuexin Han and Shumin Zhang
Minerals 2023, 13(7), 865; https://doi.org/10.3390/min13070865 - 26 Jun 2023
Cited by 1 | Viewed by 1500
Abstract
Lithium-bearing polymetallic pegmatite ores are an important raw material for lithium extraction. They contain not only lithium but also other associated elements such as beryllium, tantalum, and niobium, with great recovery values. It is therefore often called lithium-bearing polymetallic pegmatite ore (LPPO). The [...] Read more.
Lithium-bearing polymetallic pegmatite ores are an important raw material for lithium extraction. They contain not only lithium but also other associated elements such as beryllium, tantalum, and niobium, with great recovery values. It is therefore often called lithium-bearing polymetallic pegmatite ore (LPPO). The recovery and utilization of Be-bearing minerals in LPPOs have yet to be further studied. This paper briefly expounds the geological aspects of LPPO deposits in China and Chinese experiences on the beneficiation of LPPOs, with special emphasis on the flotation separation of lithium-beryllium minerals. In LPPO, spodumene is the main target mineral for lithium, while beryl is the main Be-bearing mineral in a fine-grained embedded state. If the BeO grade of LPPO is greater than the industrial grade (BeO ≥ 0.04%), it will be processed for recovery. Tantalum and niobium minerals are mainly in the form of tantalite, columbite, or ferrotapiolite, which may be recovered by gravity separation or magnetic separation. Gangue minerals are mainly composed of albite and quartz. Currently, the most commonly used methods for separating the target minerals from gangue are dense medium separation and flotation. The manual sorting method has become obsolete and is expected to be replaced by machine sorting methods such as color sorters and X-ray transmission sorters. Flotation is the main method for the separation of fine-grained beryl and spodumene. The success of flotation depends on the selection of suitable pretreatment methods and appropriate flotation reagents for altering the surface properties of spodumene and beryl and for expanding the floatability differences between spodumene and beryl and between spodumene and gangue. Full article
(This article belongs to the Special Issue Flotation of Fine Particle Ores and Metallic Ores)
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