Optimization and mechanism of gold-bearing sulfide flotation

被引：0

作者：

Zhong-Mei Sun ^{[1
,2
]}

Chun-Bao Sun ^{[1
]}

Ji-Zhen Wang ^{[3
]}

Wan-Zhong Yin ^{[4
]}

机构：

[1] School of Civil and Environmental Engineering, University of Science and Technology Beijing

[2] Zijin Research Institute of Mining and Metallurgy

[3] School of Materials & Metallurgy, Northeastern University

[4] College of Zi Jin Mining, Fuzhou University

来源：

Rare Metals | 2014年 / 33卷 / 03期

关键词：

Gold; Pyrite; Arsenopyrite; Activator; Combined reagent; Flotation;

D O I：

暂无

中图分类号：

TD923 [浮游选矿];

学科分类号：

摘要：

In order to overcome the difficulty of extracting gold from gold-bearing sulfide ore by cyanide process flotation was adopted based on mineralogical analysis Mineralogy shows that gold particles are of superfine structure and mainly enclosed by sulfide ores. Primary gold-bearing sulfide ore is fine-grained pyrite and arsenopyrite. The paper describes the effects of ratios and dosage of activators and collectors on the recovery and grade of gold concentrate. A proper flotation flowsheet was then proposed based on experimental condition and closedcircuit test. The gold concentrate with the gold grade of25.14 g ton-1and the recovery of 86.94 % is obtained after one rougher, three cleaners, and four scavengers from fine grinding flotation process. Furthermore, the mechanisms of combined activators and combined collectors were studied by thermodynamic calculation, and structure–activity relationship of flotation reagent was also explained

引用

页码：363 / 368

页数：6

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