Beneficiation and Extraction of Lithium, Tantalum and Niobium from Ores and Secondary 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: 31 July 2024 | Viewed by 1460

Special Issue Editors


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Guest Editor
Western Australian School of Mines, Curtin University, Kalgoorlie, WA 6430 , Australia
Interests: flotation; gravity separation; particle sorting; mineralogy; electrochemistry; extractive metallurgy

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Guest Editor
Future Industries Institute, University of South Australia, Adelaide, SA 5095, Australia
Interests: hydrometallurgy; physical separation and beneficiation of mineral ores; flotation; colloid and interfacial science and particle interactions; thickening; dewatering and disposal of mineral waste tailings; process water treatment and environmental cleaning
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Guest Editor
Department of Mining Engineering, Addis Ababa Science and Technology University, Addis Ababa P.O. Box 16417, Ethiopia
Interests: ore beneficiation; extractive metallurgy; applied geology; mineralogy

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Guest Editor
Western Australian School of Mines, Curtin University, Kalgoorlie, WA 6430, Australia
Interests: mineral flotation; extractive metallurgy; recycling; systhesis of catalysts

Special Issue Information

Dear Colleagues,

It is well known that the demand for lithium, tantalum and niobium has skyrocketed in recent years owing to their use in modern electronics, energy storage systems, superalloys and catalysts. These elements often feature on the list of critical metals/minerals in many countries worldwide. Several researchers are currently working on the efficient beneficiation and extraction of these commodities from primary deposits (such as hard rock ores and pegmatite deposits) and secondary resources (e.g., plant tailing and waste streams), as well as the recycling of spent materials. The development of optimal techniques for the production of Li, Ta and Nb will be crucial to bridge the gap between supply and demand in the coming years.

This Special Issue aims to aggregate current research on the beneficiation and extraction of Li, Nb and Ta from primary and secondary ores. The use of gravitational, magnetic and electrostatic separations; froth flotation; ore sorting; and coarse particle rejection will be presented. Hydrometallurgical and pyrometallurgical approaches involving leaching and extraction methods from ores or other sources are also the focus areas of this Special Issue. In addition, submissions dealing with energy consumption associated with comminution and processing, as well as other environmental aspects, are encouraged.

Dr. Bogale Tadesse
Prof. Dr. Jonas Addai-Mensah
Dr. Girma Woldetinsae
Dr. Lisha Dong
Guest Editors

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 chemistry
  • ore sorting
  • hydrometallurgy
  • beneficiation
  • pegmatites
  • critical metals
  • lithium, tantalum and niobium
  • mineral processing

Published Papers (1 paper)

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Research

14 pages, 5140 KiB  
Article
Lithium Extraction from Lithium-Bearing Clay Minerals by Calcination-Leaching Method
by Jie Liu, Rui Xu, Wei Sun, Li Wang and Ye Zhang
Minerals 2024, 14(3), 248; https://doi.org/10.3390/min14030248 - 28 Feb 2024
Cited by 1 | Viewed by 931
Abstract
Lithium is a significant energy metal. This study focuses on the extraction of lithium from lithium-bearing clay minerals utilizing calcination combined with oxalic acid leaching. The relevant important parameters, leaching kinetics analysis, and the lithium extraction mechanism were deeply investigated. The results demonstrate [...] Read more.
Lithium is a significant energy metal. This study focuses on the extraction of lithium from lithium-bearing clay minerals utilizing calcination combined with oxalic acid leaching. The relevant important parameters, leaching kinetics analysis, and the lithium extraction mechanism were deeply investigated. The results demonstrate that a high lithium recovery of 91.35% could be achieved under the optimal conditions of calcination temperature of 600 °C, calcination time of 60 min, leaching temperature of 80 °C, leaching time of 180 min, oxalic acid concentration of 1.2 M, and liquid-to-solid ratio of 8:1. According to the shrinkage core model, the leaching kinetics of lithium using oxalic acid followed a chemical reaction-controlled process. XRD, TG, and SEM analysis showed that the kaolinite, boehmite, and diaspore phases in raw ore transformed into corundum, quartz, and muscovite phase in calcination products when the calcination temperature was higher than 600 °C. Moreover, the expansion of the interlayer spacing of minerals during the calcination process could promote the lithium release. During the leaching process, lithium present in the layered silicates was efficiently recovered through ion exchange with the dissociated H+ from oxalic acid. This study could provide a promising guide for lithium extraction from lithium-bearing clay minerals. Full article
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