Special Issue "Advances in Mineral Processing and Process Engineering"

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 December 2022 | Viewed by 728

Special Issue Editors

Dr. Qinghua Zeng
E-Mail Website
Guest Editor
School of Computing, Engineering and Mathematics, Western Sydney University, Penrith, NSW 2751, Australia
Interests: nanocomposites; nanoparticles; nanostructures; molecular modeling and simulation; surface science; mineral processing; mineral materials; clay minerals
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Hao Ding
E-Mail Website
Guest Editor
Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences Beijing, Beijing 100083, China
Interests: functional mineral materials; nanoscale photocatalytic materials; environmental materials; mineral processing; powder technology
Special Issues, Collections and Topics in MDPI journals
Dr. Xuefeng Dong
E-Mail Website
Guest Editor
School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong 2500, Australia
Interests: multiphase flow; heat transfer; mass transfer with reactions; computational fluid dynamics and process engineering

Special Issue Information

Dear Colleagues,

The 2nd International Conference on Mineral Engineering and Materials Science (iCMEMS2022, http://www.icmems.net.au) will be held in a hybrid format (in-person and virtual) in Sydney, Australia on the 27–30 November 2022. The conference is to provide a platform for academics, researchers, graduates, and industry professionals to present and share their latest research and practice in the broad fields of mineral engineering, process metallurgy, material science and engineering, and particle science and technology.

We invite conference participants of iCMEMS2022 as well as other researchers to submit their high-quality manuscripts to this Special Issue of Minerals: Advances in Mineral Processing and Process Engineering. The topics include, but not limited to:

  •  Mineral processing;
  •  Mineral materials;
  •  Particle science and technology;
  •  Process metallurgy;
  •  Solid waste and materials recycling;
  •  Computer modelling and simulation.

Dr. Qinghua Zeng
Prof. Dr. Hao Ding
Dr. Xuefeng Dong
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 2000 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

  •  ore comminution
  •  flotation
  •  gravity separation
  •  physical separation
  •  extractive metallurgy
  •  pyrometallurgy
  •  powder technology
  •  modeling and simulation
  •  solid waste

Published Papers (1 paper)

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Research

Article
Dissolution Behavior of Sodium Phosphate in a Na3PO4–Na2WO4–NaOH Solution System
Minerals 2022, 12(6), 732; https://doi.org/10.3390/min12060732 - 08 Jun 2022
Viewed by 326
Abstract
Sodium hydroxide autoclaving is the main method for smelting scheelite in China. In this method, sodium phosphate is added as an additive to realize the highly efficient decomposition of scheelite, and a crude sodium tungstate solution containing sodium phosphate and sodium hydroxide is [...] Read more.
Sodium hydroxide autoclaving is the main method for smelting scheelite in China. In this method, sodium phosphate is added as an additive to realize the highly efficient decomposition of scheelite, and a crude sodium tungstate solution containing sodium phosphate and sodium hydroxide is obtained. In the subsequent process of ion exchange, phosphorus ions in the solution compete with the resin adsorption of tungstate, which reduces the adsorption capacity of the resin and endangers the purity of the subsequent sodium tungstate solution. To remove the phosphorus from crude sodium tungstate solution, a chemical purification method is usually adopted. The principle of the chemical purification method is to use chemical reagents to react with impurities to form precipitates to achieve the purpose of impurity removal. Because of the advantages of simple industrial implementation and high impurity removal efficiency, it has been widely used in phosphorus removal from crude sodium tungstate solution. However, in the process of phosphate removal in a crude sodium phosphate solution, the chemical purification method has some disadvantages. First, the additional cost of chemical reagents is required, and other metal impurities from chemical reagents would be introduced to crude sodium tungstate solution. Second, phosphate impurity removed by the chemical precipitation method is usually sedimented in other forms but sodium phosphate, which makes the phosphate resource unable to be recycled for tungsten smelting. Therefore, a novel phosphorus removal method needs to be developed. The dissolution behavior of sodium phosphate in a Na3PO4–Na2WO4–NaOH system was investigated in this paper. The results showed that in binary or ternary solution systems of sodium phosphate, sodium tungstate, and sodium hydroxide, the common-ion effect and salt effect exist simultaneously. The common-ion effect decreases the solubility of sodium phosphate, while the salt effect increases the solubility of sodium phosphate. Increasing the concentration of sodium hydroxide or sodium tungstate and lowering the temperature of the solution can greatly reduce the phosphorus concentration in crude sodium tungstate solution, making the crude sodium tungstate solution meet industrial requirements of ion exchange. The results of the study lay a theoretical foundation for the development of new phosphorus removal methods. Full article
(This article belongs to the Special Issue Advances in Mineral Processing and Process Engineering)
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