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

Electrochemical characteristics and collectorless flotation behavior of galena: With and without the presence of pyrite
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方铅矿的电化学特性和无捕收剂浮选行为:有或没有黄铁矿存在

DOI:
10.1016/j.mineng.2015.01.010
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发表时间:
2015-04
影响因子:
4.8
通讯作者:
Ke Gao
Ke Gao
中科院分区:
工程技术2区
文献类型:
--
作者:
Fen Jiao;Ruizeng Liu;Congren Yang;Ke Gao

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研究了含黄铁矿和不含黄铁矿方铅矿的电化学性质、表面性质和无捕收剂浮选行为。电化学测试证实了以前文献中的报道,即方铅矿在电化学上比黄铁矿更活跃,并且在与黄铁矿的电偶结合中作为阳极。循环伏安和极化曲线测试表明,黄铁矿的加入没有改变方铅矿的氧化还原产物,但增加了氧化过程中的电流密度。方铅矿与黄铁矿偶合时,由于矿物表面氧化的影响,方铅矿的Zeta电位表现出明显的差异。浮选结果表明,黄铁矿的存在对方铅矿的无捕收剂可浮性有影响,且与各矿物组成比例的影响相关。
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.
DOI: 10.1016/0892-6875(95)00116-6
发表时间: 1995-12
影响因子: 4.8
作者:
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