Effect of Grinding Media on Cyanide Leaching Behavior of Galena

被引：0
|
作者：
Zhao Q.-F. [1 ,2 ]
Tong L.-L. [1 ,2 ]
Yang H.-Y. [1 ,2 ]
Jin R.-P. [1 ,2 ]
机构：
[1] Key Laboratory for Ecological Metallurgy of Multimetallic Mineral (Ministry of Education), Northeastern University, Shenyang
[2] School of Metallurgy, Northeastern University, Shenyang
来源：
Dongbei Daxue Xuebao/Journal of Northeastern University | 2022年 / 43卷 / 12期
关键词：
cyanidation; galena; Galvanic coupling; grinding media; surface properties;
D O I：
10.12068/j.issn.1005-3026.2022.12.015
中图分类号：
学科分类号：
摘要：
Using zirconia and common cast-iron grinding balls as ball milling media, the effects of grinding media on the variations of pulp and interface properties in the process of galena cyanidation was systematically investigated by chemical and analytical testing techniques.The results show that the use of ceramic ball media can reduce the consumption of NaCN compared to iron bass media, while the generation of SCN ~ was reduced and the dissolved oxygen content was significantly higher.The analysis of the surface morphology and element composition of galena by scanning electron microscopy combined with energy dispersive spectroscopy (SEM-EDS) and X-ray photoelectron spectroscopy(XPS) revealed that the iron ball media resulted in more formation of oxygenated floes of FeOOH and Fe2 (S04 )3 on the galena surface.In combination with the contact angle test results, it was found that the surface of galena ground with iron ball media was hydrophilic due to the adhesion of iron filings; and the increased hydrophilicity of galena due to cyanidation was not conducive to subsequent flotation recovery. © 2022 Northeastern University. All rights reserved.
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页码：1777 / 1783
页数：6
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