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Separations
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Separation Methods in Mineral Industry
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Separation Methods in Mineral Industry

A special issue of Separations (ISSN 2297-8739). This special issue belongs to the section "Materials in Separation Science".

Deadline for manuscript submissions: 20 May 2024 | Viewed by 1620

Special Issue Editors

Dr. Haishen Jiang

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Guest Editor
Key Laboratory of Coal Processing & Utilization, Ministry of Education, China University of Mining and Technology, Xuzhou 221116, China
Interests: intelligent precise screening; dry separation; slime reduction process; comprehensive utilization of solid waste resources
Dr. Yadong Zhang

E-Mail Website
Guest Editor
Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining & Technology, Xuzhou 221116, China
Interests: clean and efficient dry separation of coal
Dr. Ligang Tang

E-Mail Website
Guest Editor
Hebei Key Laboratory of Hazardous Chemicals Safety and Control Technology, School of Chemistry and Environment Engineering, North China Institute of Science and Technology, Sanhe 065201, China
Interests: particle fluidization separation; fine coal separation

Special Issue Information

Dear Colleagues,

As the important constituent of our national economy, mineral industry provides the practical guarantee for the production and life. As the strategic objective of our country changes, traditional separation methods in the use of the same time also face many challenges, the corresponding technology and equipment are developing in a large and automatic direction, and gradually, intelligent technology and equipment, which are well adapted to the production and environment needs in our country. With green separation as the guiding principle, this Special Issue aims to collect and propose cutting-edge mineral separation technologies for environmentally friendly and ecologically sustainable development, ultimately, in order to improve the mineral separation efficiency and the utilization of mineral resource.

Dr. Haishen Jiang
Dr. Yadong Zhang
Dr. Ligang Tang
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. Separations 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 2600 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

  • dynamic motion behavior
  • viscous moist coal
  • structural optimization
  • viscous moist coal
  • structural optimization
  • numerical simulation
  • elastic screening
  • equal thickness screening
  • particle kinematics

Published Papers (1 paper)

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Research

15 pages, 3353 KiB  
Article
Recovery of Valuable Metals from Polymetallic Refractory Concentrate by a Sulfuric Acid Curing and Leaching Method
by Wei Jiang, Jilai Xue, Kaixi Jiang, Xunxiong Jiang, Shengdong Wang, Jinping Hu, Derek O. Northwood, Kristian E. Waters and Hao Ma
Separations 2024, 11(1), 7; https://doi.org/10.3390/separations11010007 - 23 Dec 2023
Viewed by 1282
Abstract
Sulfuric acid curing and leaching is a promising technology for treating refractory ores. In this work, a refractory concentrate containing 3191 ppm uranium (U), 2135 ppm niobium (Nb), and 0.7% rare earth minerals (REMs) went through two stages: curing by high-concentration H2 [...] Read more.
Sulfuric acid curing and leaching is a promising technology for treating refractory ores. In this work, a refractory concentrate containing 3191 ppm uranium (U), 2135 ppm niobium (Nb), and 0.7% rare earth minerals (REMs) went through two stages: curing by high-concentration H2SO4 and leaching by low-concentration H2SO4. We investigated the behavior of those valuable metals during the two stages. For both curing and leaching, the operating parameters include the acid-to-solid ratio, time, temperature, and H2SO4 concentration. The recovery for U, Nb, and REMs was as high as 95%, 86%, and 73.5% using a curing acid-to-solid ratio of 1:1, curing temperature of 200 °C, curing time of 1 h, H2SO4 concentration of 98%, leaching liquid-to-solid ratio of 4:1, leaching time of 2 h, leaching temperature of 60 °C, and leaching H2SO4 concentration of 5 g/L. A “sulfuric acid curing–leaching-U extraction by N235–Nb recovery by resin adsorption–REMs’ recovery by resin adsorption” method was implemented, where the overall U, Nb, and REMs’ recovery reached 93.1%, 84.5%, and 69.6%, respectively. Full article
(This article belongs to the Special Issue Separation Methods in Mineral Industry)
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