Grinding Chemistry and Its Impact on Downstream Processing

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

Deadline for manuscript submissions: 30 December 2024 | Viewed by 1239

Special Issue Editors


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Guest Editor
Research Laboratory, Magotteaux Australia Pty Ltd., Wingfield, SA 5013, Australia
Interests: flotation; grinding; pulp chemistry; surface chemistry
School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
Interests: grinding pulp chemistry; surface chemistry; high-efficiency comminution technologies; flotation of sulfide minerals
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Minerals and Resource Engineering, Future Industries Institute, University of South Australia, Mawson Lakes Campus, Adelaide, SA 5095, Australia
Interests: mineral processing and extractive metallurgy; data analytics and machine learning; biohydrometallurgy; surface and interfacial science; environmetal science (ESG)
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

There is already considerable research investigating particle breakage and modeling of the comminution process, but very little attention has been paid to precisely why we grind and how this affects downstream processing.

This Special Issue aims to attract papers from authors who relate the grinding environment to changes in pulp and surface chemistry, its impact on collector adsorption, pH and depressant utilization, and how it effects subsequent metallurgical performance. Ultimately, we aim to determine whether during grinding has a significant impact on flotation or leaching.

Dr. Chris Greet
Dr. Shihong Xu
Dr. Richmond K. Asamoah
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 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

  • grinding media
  • mineralogy
  • collector adsorption
  • grade and recovery
  • gold leaching
  • cyanide consumption
  • pulp chemistry
  • surface chemistry

Published Papers (1 paper)

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Research

20 pages, 5887 KiB  
Article
Enhanced Flotation of Dolomite Particles by Grinding with Short Cylindrical Media
by Shuai Ren, Cong Wang, Zhiyong Gao and Shihong Xu
Minerals 2023, 13(12), 1550; https://doi.org/10.3390/min13121550 - 15 Dec 2023
Viewed by 930
Abstract
In the field of mineral processing, the successful flotation of target minerals requires sufficient liberation through grinding. The aim of this paper is to compare and evaluate the performance of ball versus short cylindrical media for comminution of dolomite by point and line [...] Read more.
In the field of mineral processing, the successful flotation of target minerals requires sufficient liberation through grinding. The aim of this paper is to compare and evaluate the performance of ball versus short cylindrical media for comminution of dolomite by point and line contact, respectively. The results of the grinding experiments indicate that short cylinders generate more angular particles with intermediate sizes and exhibit a higher grinding efficiency compared to balls. The Population Balance Model demonstrates the distribution of broken fragment sizes during the breaking stage for each size range. The results of the DEM (discrete element method) grinding simulation are consistent with the experimental findings in terms of the distribution of particle sizes, the shape of the particles, and the distribution of broken fragment sizes. Furthermore, short cylinders selectively produce more active {104} crystal surface of dolomite, which possess a higher adsorption capacity with collectors and are preferentially floated as the concentrate. In reverse flotation for removal of dolomite, tests confirm that the products obtained from grinding with short cylinders exhibit a higher flotation recovery of dolomite compared to those obtained from ball grinding. This study provides a reference scheme for optimizing the grinding and flotation processes of valuable minerals. Full article
(This article belongs to the Special Issue Grinding Chemistry and Its Impact on Downstream Processing)
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