Special Issue "Mineral Liberation"

A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Mineral Processing and Metallurgy".

Deadline for manuscript submissions: 30 November 2019

Special Issue Editor

Guest Editor
Dr. Pura Alfonso Abella

Departament d'Enginyeria Minera, Industrial i TIC, Universitat Politècnica de Catalunya, 08242 Manresa, Spain
Website | E-Mail
Interests: ore deposits; quantitative mineralogy; geometallurgy; mineral processing; mineral liberation (liberation degree); advanced mineralogical characterisation equipment

Special Issue Information

Dear Colleagues,

Mineral liberation is essential for designing an optimal mineral processing. It depends on the mineralogical and textural characteristics of ores. The estimation of the liberation degree is fundamental to estimate the efficiency that can be achieved using a separation process. The use of automated mineralogy analysis provides valuable information about mineral liberation, such as its chemistry, mineral composition, and the shape and size of its particles. The extent of mineral liberation is a determining parameter to define the optimal comminution process in order to obtain the maximum grade during the separation process with the lowest energy consumption. In addition, knowing what minerals accompany the ore is necessary for applying separation techniques. This Special Issue aims to provide a compilation of the latest advances on mineral liberation. This issue covers a broad range of topics in which mineral liberation pays a fundamental role such as comminution, energy consumption, physical separation, and modelling.

Dr. Pura Alfonso Abella
Guest Editor

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 papers will be 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 1400 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 processing
  • ore
  • grade
  • particle size
  • textures
  • mineralogy
  • automated mineralogy
  • comminution
  • energy consumption
  • physical separation
  • modelling

Published Papers (1 paper)

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Review

Open AccessFeature PaperReview
X-ray Microcomputed Tomography (µCT) for Mineral Characterization: A Review of Data Analysis Methods
Minerals 2019, 9(3), 183; https://doi.org/10.3390/min9030183
Received: 19 February 2019 / Revised: 9 March 2019 / Accepted: 12 March 2019 / Published: 15 March 2019
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Abstract
The main advantage of X-ray microcomputed tomography (µCT) as a non-destructive imaging tool lies in its ability to analyze the three-dimensional (3D) interior of a sample, therefore eliminating the stereological error exhibited in conventional two-dimensional (2D) image analysis. Coupled with the correct data [...] Read more.
The main advantage of X-ray microcomputed tomography (µCT) as a non-destructive imaging tool lies in its ability to analyze the three-dimensional (3D) interior of a sample, therefore eliminating the stereological error exhibited in conventional two-dimensional (2D) image analysis. Coupled with the correct data analysis methods, µCT allows extraction of textural and mineralogical information from ore samples. This study provides a comprehensive overview on the available and potentially useful data analysis methods for processing 3D datasets acquired with laboratory µCT systems. Our study indicates that there is a rapid development of new techniques and algorithms capable of processing µCT datasets, but application of such techniques is often sample-specific. Several methods that have been successfully implemented for other similar materials (soils, aggregates, rocks) were also found to have the potential to be applied in mineral characterization. The main challenge in establishing a µCT system as a mineral characterization tool lies in the computational expenses of processing the large 3D dataset. Additionally, since most of the µCT dataset is based on the attenuation of the minerals, the presence of minerals with similar attenuations limits the capability of µCT in mineral segmentation. Further development on the data processing workflow is needed to accelerate the breakthrough of µCT as an analytical tool in mineral characterization. Full article
(This article belongs to the Special Issue Mineral Liberation)
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