Electrochemical characteristics and collectorless flotation behavior of galena: With and without the presence of pyrite

被引：51
|
作者：
Qin, Wenqing [1 ]
Wang, Xingjie [1 ]
Ma, Liyuan [1 ]
Jiao, Fen [1 ]
Liu, Ruizeng [1 ]
Yang, Congren [1 ]
Gao, Ke [1 ]
机构：
[1] Cent S Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Hunan, Peoples R China
来源：
MINERALS ENGINEERING | 2015年 / 74卷
基金：
中国国家自然科学基金;
关键词：
Electrochemical interaction; Collectorless flotation; Galena; Pyrite; SULFIDE MINERALS; GALVANIC INTERACTION; CYCLIC VOLTAMMETRY; SURFACE OXIDATION; CHALCOPYRITE; PYRRHOTITE; SPHALERITE;
D O I：
10.1016/j.mineng.2015.01.010
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The electrochemical characteristics, surface properties and collectorless flotation behavior of galena with and without the presence of pyrite have been studied. Electrochemical tests confirmed previous reports in the literature that galena is electrochemically more active than pyrite and serves as the anode in galvanic combinations with pyrite. Cyclic voltammograms and polarization curves tests indicated that the addition of pyrite did not change the oxidative and reductive products of galena, but increased the current density during oxidation process. Zeta potential of galena showed a significant difference when coupled with pyrite, due to the influence on the oxidation of the mineral surface. Flotation results showed that the presence of pyrite leading to an influence on the collectorless floatability of galena and the influence correlation with the composition proportion of each mineral. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：99 / 104
页数：6
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