(1. 昆明理工大學 國土資源工程學院，昆明 650093；
2. 省部共建復雜有色金屬資源清潔利用國家重點實驗室，昆明 650093；
3. 云南省金屬礦尾礦資源二次利用工程研究中心，昆明 650093)
摘 要: 方鉛礦是一種主要的含鉛礦物，具有半導體性質，其浮選涉及到電化學反應的過程。在電化學過程中發(fā)生電子轉移、方鉛礦表面氧化、pH變化、電位改變、藥劑分子氧化及其與礦物表面作用等。本文全面分析了方鉛礦磨礦及浮選電化學行為的各種影響因素，并對當前研究的重點和方向進行了探討，如電化學研究應注重理論與實踐相結合，根據方鉛礦浮選的電化學特征，通過調節(jié)和控制礦漿電位、溶解氧和礦漿pH等參數條件，以改善浮選礦漿體系，優(yōu)化浮選指標。此外，要改善礦山生態(tài)環(huán)境，盡量減少Ge、Hg、Tl等有毒有害元素的溶出。
關鍵字: 方鉛礦；浮選；電化學；機理
（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
