Effect of Copper and Iron Ions on the Sulphidizing Flotation of Copper Oxide in Copper Smelting Slag

被引：9
|
作者：
Pan, Qing-qing [1 ,2 ]
Peng, Hui-qing [1 ]
机构：
[1] Wuhan Univ Technol, Sch Resource & Environm, Wuhan 200245, Hubei, Peoples R China
[2] Shanghai Dianji Univ, Sch Mech, Shanghai 201306, Peoples R China
来源：
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING | 2018年 / 2018卷
关键词：
ADSORPTION; SURFACES; XPS; CHALCOPYRITE; ACTIVATION; MECHANISM; MALACHITE; BEHAVIOR; CU(II); QUARTZ;
D O I：
10.1155/2018/4656424
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The treatment of smelting slag has attracted much attention nowadays. This study investigates the influence of Na2S, CuSO4, and FeCl3 on sulphidizing flotation of copper oxide. The results show that a proper Cu2+ concentration can increase the sulphidizing effect of copper oxide, while Fe3+ inhibits the sulphidizing effect. Further analysis shows that Cu2+ ions can reduce the surface potential, increase the S2- adsorption, then generate more polysulfide, and therefore promote the sulphidizing flotation. However, Fe3+ ions would increase the surface potential, reduce the S2- adsorption, generate more sulfur element, and therefore inhibit the sulphidizing flotation.
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页数：9
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