| 磨矿介质对方铅矿浮选影响的电化学机制研究 |
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| 引用本文： | 卜显忠,车美佳,张崇辉,宛鹤,王森,薛季玮,马明杰,罗仙平. 磨矿介质对方铅矿浮选影响的电化学机制研究[J]. 有色金属工程, 2023, 0(2): 100-108 |
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| 作者姓名： | 卜显忠 车美佳 张崇辉 宛鹤 王森 薛季玮 马明杰 罗仙平 |
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| 作者单位： | 西安建筑科技大学 资源工程学院,西安建筑科技大学 资源工程学院,西安建筑科技大学 资源工程学院,西安建筑科技大学 资源工程学院,西安建筑科技大学 资源工程学院,西安建筑科技大学 资源工程学院,西安建筑科技大学 资源工程学院,江西理工大学 资源与环境工程学院 |
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| 基金项目： | 国家自然科学(52074206),安徽省2021年重点研究与开发计划项目(202104a07020012),西安建筑科技大学人才科技基金（ZR20066）,陕西省教育厅科研计划项目-服务地方专项项目（19JC024）,矿物加工科学与技术国家重点实验室项目（BGRIMM-KJSKL-2021-19） |
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| 摘 要： | 磨矿作业对硫化矿浮选有重要影响。以方铅矿为研究对象、以电化学分析为主要手段,研究了钢、不锈钢、陶瓷三种磨矿介质对方铅矿浮选的影响机制。三种磨矿介质对应的回收率分别为:钢79.71%、不锈钢81.62%、陶瓷83.43%,磨矿介质的电化学活性越高方铅矿可浮性越差。分析结果表明,在与方铅矿组合的电偶中,介质钢和不锈钢都充当阳极发生氧化反应,陶瓷介质中则是方铅矿作为阳极发生氧化反应,这导致陶瓷介质磨矿时方铅矿表面疏水物质S 0的含量远高于钢和不锈钢介质磨矿;另外,电化学活性越高,磨矿介质与方铅矿的伽伐尼电偶作用造成的电化学腐蚀越强,生成铁的氧化物和氢氧化物等亲水物质对方铅矿的迁移罩盖越强,可浮性也就更差。
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| 关 键 词： | 磨矿介质 方铅矿 浮选 电化学 |
| 收稿时间： | 2022-09-06 |
| 修稿时间： | 2022-10-24 |
Study on electrochemical mechanism of influence of grinding medium on galena flotation |
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| BU Xianzhong,CHE Meijiay,ZHANG Chonghui,WAN He,WANG Sen,XUE Ji-wei,MA Ming-jie and LUO Xian-ping. Study on electrochemical mechanism of influence of grinding medium on galena flotation[J]. Nonferrous Metals Engineering, 2023, 0(2): 100-108 |
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| Authors: | BU Xianzhong CHE Meijiay ZHANG Chonghui WAN He WANG Sen XUE Ji-wei MA Ming-jie LUO Xian-ping |
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| Affiliation: | School of Resource Engineering,Xi ''an University of Architecture and Technology,Xi ''an,School of Resource Engineering,Xi ''an University of Architecture and Technology,Xi ''an,School of Resource Engineering,Xi ''an University of Architecture and Technology,Xi ''an,School of Resource Engineering,Xi ''an University of Architecture and Technology,Xi ''an,School of Resource Engineering,Xi ''an University of Architecture and Technology,Xi ''an,School of Resource Engineering,Xi ''an University of Architecture and Technology,Xi ''an,School of Resource Engineering,Xi ''an University of Architecture and Technology,Xi ''an,College of Resources and Environmental Engineering,Jiangxi University of Science and Technology |
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| Abstract: | Grinding operation has an important influence on the flotation of sulfide ore. Taking galena as the research object, and taking the electrochemical analysis as the main means, this paper studies the influence mechanism of three grinding media, namely steel, stainless steel, and ceramic, on galena flotation. The recoveries of the three grinding media are as follows: steel 79.71%, stainless steel 81.62%, and ceramic 83.43%. The higher the electrochemical activity of the media, the worse the flotability of galena. The analysis results show that both dielectric steel and stainless steel act as anodes for oxidation reaction in the combination with galena, while in the ceramic media, galena acts as anodes for oxidation reaction, which results in the surface of galena in the amount of hydrophobic substance S0 is much higher than that of steel and stainless steel media grinding. In addition, the higher the electrochemical activity, the stronger the electrochemical corrosion caused by the galvanic couple interaction between the medium and galena, and the stronger the migration cover of hydrophilic substances such as iron oxides and hydroxides to galena, the worse the flotability. |
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| Keywords: | Galena Grinding medium Flotation Electrochemistry |
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