(1. 昆明理工大学 国土资源工程学院，昆明 650093；
2. 省部共建复杂有色金属资源清洁利用国家重点实验室，昆明 650093；
3. 云南省金属矿尾矿资源二次利用工程研究中心，昆明 650093)
摘 要: 方铅矿是一种主要的含铅矿物，具有半导体性质，其浮选涉及到电化学反应的过程。在电化学过程中发生电子转移、方铅矿表面氧化、pH变化、电位改变、药剂分子氧化及其与矿物表面作用等。本文全面分析了方铅矿磨矿及浮选电化学行为的各种影响因素，并对当前研究的重点和方向进行了探讨，如电化学研究应注重理论与实践相结合，根据方铅矿浮选的电化学特征，通过调节和控制矿浆电位、溶解氧和矿浆pH等参数条件，以改善浮选矿浆体系，优化浮选指标。此外，要改善矿山生态环境，尽量减少Ge、Hg、Tl等有毒有害元素的溶出。
关键字: 方铅矿；浮选；电化学；机理
（1. Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China;
2. State Key Laboratory of Complex Nonferrous Metal Resources Clean, Utilization, Kunming 650093, China;
3. Yunnan Province Engineering Research Center for Reutilization of Metal Tailings Resources, Kunming 650093, China）
Abstract:Galena is a major lead-bearing mineral with semiconductor properties, and its flotation process involves the electrochemical reaction. During the electrochemical process, there will exist electron transfer, galena surface oxidation, pH changing, potential changing, reagent molecular oxidation and interaction with galena surface. Above factors affecting electrochemical behavior were comprehensively analyzed in this article. Meanwhile, the focus and direction of current research were discussed, for instant, electrochemical research should focus on the combination of theory and application, and according to the electrochemical behavior of galena flotation, by adjusting and controlling parameters such as pulp potential, dissolved oxygen and pulp pH to improve the flotation pulp system and optimize the flotation index. In addition, it is necessary to improve the ecological environment of the mine and minimize the dissolution of toxic and harmful elements such as Ge, Hg, and Tl.
Key words: galena; flotation; electrochemistry; mechanism
