Mineral Flotation: Theory and Technology

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 (29 February 2024) | Viewed by 1175

Special Issue Editor


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Guest Editor
School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
Interests: flotation theory and technology; numerical simulation of interface interaction; mineral materials

Special Issue Information

Dear Colleagues,

Minerals play a crucial role in social development as valuable natural resources, serving as essential sources for a diverse range of industrial production basis materials. Flotation is a significant beneficiation method that is the primary approach for recovering valuable minerals from low-grade and complex ores. Flotation theory focuses on understanding the underlying principles and mechanisms of flotation, such as surface chemistry, interfacial phenomena, and the influence of various physical and chemical parameters on the flotation process. Flotation technology mainly includes optimization and application involving the equipment, reagents, process, design, etc. The innovation of theory and technology drives the advancement of mineral flotation technology, enhances its ability to deal with complex refractory ore sorting, and improves the efficiency of mineral processing operations, strengthening the recovery of valuable minerals.

This Special Issue aims to summarize recent progress in the research on theory and technology for the mineral flotation process. Three sections will be covered:

Section 1: Application and mechanism of flotation reagents;
Section 2: Flotation separation technology of complex refractory ores;
Section 3: Flotation Equipment: principle and application.

This Special Issue will share the latest research achievements in the theory and technology of mineral flotation and provide a reference for optimizing and applying the mineral flotation separation process. Relevant research results can provide theoretical and technological guidance for efficiently and precisely separating complex and refractory mineral resources.

Dr. Cong Han
Guest Editor

Manuscript Submission Information

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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

  • flotation reagent
  • flotation equipment
  • process mineralogy and flotation separation
  • interface chemistry of flotation

Published Papers (1 paper)

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Research

15 pages, 2945 KiB  
Article
A Novel Chalcopyrite Depressant for Selective Separation of Molybdenite from Cu-Mo Sulfide Ores and Its Interaction Mechanisms
by Yuemeng Lin, Wentao Xu, Lishuai Jiang, Baisui Han and Mengyue Yang
Minerals 2023, 13(12), 1548; https://doi.org/10.3390/min13121548 - 15 Dec 2023
Viewed by 893
Abstract
In this study, GX2 was applied as a new high-efficiency chalcopyrite depressant to selectively separate molybdenite from Cu-Mo sulfide ores. The flotation performance and its interaction mechanisms with chalcopyrite and molybdenite were investigated using single-mineral and artificial-mixed-ore flotation, contact angle measurements, zeta-potential measurements, [...] Read more.
In this study, GX2 was applied as a new high-efficiency chalcopyrite depressant to selectively separate molybdenite from Cu-Mo sulfide ores. The flotation performance and its interaction mechanisms with chalcopyrite and molybdenite were investigated using single-mineral and artificial-mixed-ore flotation, contact angle measurements, zeta-potential measurements, infrared spectroscopy, and X-ray optoelectronic spectrum analysis. The results indicated that molybdenite could be selectively separated from chalcopyrite under the optimal flotation conditions of pH 9.0, 80 mg/L GX2, 20 mg/L kerosene, 10 mg/L MIBC, and a flotation time of 3 min, while the molybdenite and chalcopyrite recoveries were around 90% and 5%, respectively. It was confirmed that GX2 could save ten times the depressant dosage compared to that of the Na2S baseline to achieve a similar separation efficiency. The contact angle test, zeta potential, infrared spectrum, and XPS results show that GX2 may be adsorbed on the surface of chalcopyrite via chemical adsorption, and the hydrophilic substances formed change its hydrophobicity, whereas the effect on the floatability of molybdenite is small, resulting in the excellent separation efficiency of chalcopyrite and molybdenite via flotation. Full article
(This article belongs to the Special Issue Mineral Flotation: Theory and Technology)
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