Mingyu Tao, Luzheng Chen, Pulin Dai, Zixing Xue, Hang Chen
{"title":"Comparative investigation on capture characteristics of chalcopyrite and hematite in PHGMS process","authors":"Mingyu Tao, Luzheng Chen, Pulin Dai, Zixing Xue, Hang Chen","doi":"10.37190/ppmp/185334","DOIUrl":null,"url":null,"abstract":"Pulsating high-gradient magnetic separation (PHGMS) is a promising method of separating chalcopyrite from other minerals with similar floatability. However, the capture characteristics of chalcopyrite in PHGMS process remains poorly understood. In this study, the difference in the capture capacity of chalcopyrite and hematite, a typical weak magnetic mineral, was theoretically compared. The effects of the key operating parameters, i.e., magnetic induction, slurry flow rate, and magnetic wire diameter, on the capture difference of chalcopyrite and hematite were investigated through experimental verification. The comparison results showed that chalcopyrite shared similar capture trend with hematite. The capture mass weight of the matrix decreased with an increase in the pulsating frequency, slurry flow rate, and magnetic wire diameter, but it increased with improved magnetic induction. However, chalcopyrite exhibited an obviously smaller capture mass weight due to its lower susceptibility, which required a higher magnetic induction, slower flow rate, lower pulsating frequency and smaller matrix diameter for high efficient recovery of chalcopyrite. This study provides a reference for the PHGMS of separating chalcopyrite from typically applied weakly magnetic minerals by PHGMS process.","PeriodicalId":20169,"journal":{"name":"Physicochemical Problems of Mineral Processing","volume":"27 5","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physicochemical Problems of Mineral Processing","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.37190/ppmp/185334","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Earth and Planetary Sciences","Score":null,"Total":0}
引用次数: 0
Abstract
Pulsating high-gradient magnetic separation (PHGMS) is a promising method of separating chalcopyrite from other minerals with similar floatability. However, the capture characteristics of chalcopyrite in PHGMS process remains poorly understood. In this study, the difference in the capture capacity of chalcopyrite and hematite, a typical weak magnetic mineral, was theoretically compared. The effects of the key operating parameters, i.e., magnetic induction, slurry flow rate, and magnetic wire diameter, on the capture difference of chalcopyrite and hematite were investigated through experimental verification. The comparison results showed that chalcopyrite shared similar capture trend with hematite. The capture mass weight of the matrix decreased with an increase in the pulsating frequency, slurry flow rate, and magnetic wire diameter, but it increased with improved magnetic induction. However, chalcopyrite exhibited an obviously smaller capture mass weight due to its lower susceptibility, which required a higher magnetic induction, slower flow rate, lower pulsating frequency and smaller matrix diameter for high efficient recovery of chalcopyrite. This study provides a reference for the PHGMS of separating chalcopyrite from typically applied weakly magnetic minerals by PHGMS process.
期刊介绍:
Physicochemical Problems of Mineral Processing is an international, open access journal which covers theoretical approaches and their practical applications in all aspects of mineral processing and extractive metallurgy.
Criteria for publication in the Physicochemical Problems of Mineral Processing journal are novelty, quality and current interest. Manuscripts which only make routine use of minor extensions to well established methodologies are not appropriate for the journal.
Topics of interest
Analytical techniques and applied mineralogy
Computer applications
Comminution, classification and sorting
Froth flotation
Solid-liquid separation
Gravity concentration
Magnetic and electric separation
Hydro and biohydrometallurgy
Extractive metallurgy
Recycling and mineral wastes
Environmental aspects of mineral processing
and other mineral processing related subjects.