| 铁闪锌矿的腐蚀电化学研究 |
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| 引用本文： | 余润兰,邱冠周,胡岳华,覃文庆.铁闪锌矿的腐蚀电化学研究[J].中国腐蚀与防护学报,2004,24(4):226-229. |
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| 作者姓名： | 余润兰 邱冠周 胡岳华 覃文庆 |
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| 作者单位： | 1. 中南大学资源加工与生物工程学院,长沙,410083;衡阳师范学院化学与材料科学系,衡阳,421008
2. 中南大学资源加工与生物工程学院,长沙,410083 |
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| 基金项目： | 国家自然科学基金重点项目 ( 5 0 2 3 40 10 ) |
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| 摘 要： | 采用Tafel曲线、交流阻抗法，研究了铁闪锌矿与浮选药剂相互作用的界面电化学行为．结果表明：pH对铁闪锌矿的腐蚀电位几乎无影响，但随着pH增大，腐蚀电流增大，矿物表面的疏水性元素S^0急剧减少，羟基化作用变大；二乙基二硫代氨基甲酸钠是铁闪锌矿的腐蚀剂和浮选抑制剂，Ca(OH)2在成本和性能上，都是碱性浮选介质中最佳的pH调整剂．
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| 关 键 词： | 铁闪锌矿 浮选药剂 腐蚀电化学 |
| 文章编号： | 1005-4537(2004)04-0226-04 |
THE CORROSIVE ELECTROCHEMICAL STUDY OF MARMATITE |
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| YU Runlan ,QIU Guanzhou,HU Yuehua,QIN Wenqing.THE CORROSIVE ELECTROCHEMICAL STUDY OF MARMATITE[J].Journal of Chinese Society For Corrosion and Protection,2004,24(4):226-229. |
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| Authors: | YU Runlan QIU Guanzhou HU Yuehua QIN Wenqing |
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| Affiliation: | YU Runlan 1,2,QIU Guanzhou1,HU Yuehua1,QIN Wenqing1 |
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| Abstract: | The interfacial electrochemical behaviors of the interaction of marmatite with flotation reagents in 0.1 mol/L KNO 3 media were studied by potentiodynamic and impedance measurements.The results indicated that the corrosive potential of marmatite almost is not affected by pH values,but its corrosive current rises ,and hydrophobic sulfur on marmatite surface decreases rapidly and hydro action becomes obvious with the rising of pH values; that diethyl dithiocarbamate is a corrosive reagent and an inhibitor for the flotation of marmatite;Ca(OH) 2 is the best reagent for adjusting pH in alkaline flotation system. |
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| Keywords: | marmatite flotation regent corrosive electrochemisty |
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