Effect of pyrite content on chalcopyrite flotation under different regrinding conditions

作     者：Zejun Wang Qing Shi Guofan Zhang Yuxuan Zhu Binbin Li Zejun Wang;Qing Shi;Guofan Zhang;Yuxuan Zhu;Binbin Li

作者机构：School of Minerals Processing and BioengineeringCentral South UniversityChangsha 410083China Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral ResourcesCentral South UniversityChangsha 410083China 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2025年第32卷第1期

页      面：49-57页

核心收录：

学科分类：081902[工学-矿物加工工程] 0819[工学-矿业工程] 08[工学] 

基　　金：financially supported by the National Key Research and Development Plan of China(No.2022YFC2904603) the National Natural Science Foundation of China(No.52174268) 

主　　题：chalcopyrite regrinding media pyrite galvanic corrosion flotation 

摘      要：This study aimed to investigate the effect of varying pyrite(Py)content on copper(Cu)in the presence of different regrinding conditions,which were altered using different types of grinding media:iron,ceramic balls,and their mixture,followed by flotation in the cleaner *** flotation performance of rough Cu concentrate can be improved by changing the regrinding conditions based on the Py *** electron microscopy,X-ray spectrometry,ethylenediaminetetraacetic acid disodium salt extraction,and X-ray photoelectron spectroscopy studies illustrated that when the Py content was high,the use of iron media in regrinding promoted the generation of hydrophilic Fe OOH on the surface of Py and improved the Cu *** ceramic medium with a low Py content prevented excessive Fe OOH from covering the surface of chalcopyrite(Cpy).Electrochemical studies further showed that the galvanic corrosion current of Cpy-Py increased with the addition of Py and became stronger with the participation of iron media.