Galena has different electrostatic potentials from grinding medium. Collision and friction occur between them in the grinding process, which lead to electron transfer and charge redistribution on galena surface, affecting surface oxidation and galena recovery. In this paper, the galvanic interaction between galena and eight different grinding media including low carbon steel (carbon content 0.1 wt.%), medium carbon steel (carbon content 0.3 wt.%), high carbon steel (carbon content 0.9 wt.%), and grinding medium containing 0.1 wt.% Ce, 0.1 wt.% La, 0.1 wt.% Y, 4.6 wt.% Cr, or 1.5 wt.% Mn has been studied using DFT method. The effects of those galvanic interactions on the surface structure, surface activity and adsorption of oxygen and xanthate molecules on galena surface have been investigated. The results show that the adsorption of oxygen and xanthate molecules on the surface of galena is the strongest with medium carbon steel (carbon content is 0.3 wt.%), followed by low carbon steel and high carbon steel. In addition, compared with the grinding media containing chromium, cerium, yttrium and manganese, the grinding medium containing lanthanum (lanthanum content is 0.1 wt.%) is more conducive to the adsorption of oxygen and xanthate molecules on the surface of galena

方铅矿与研磨介质具有不同的静电势。它们在磨削过程中发生碰撞和摩擦，导致方铅矿表面电子转移和电荷重新分布，影响方铅矿表面氧化和回收。在本文中，方铅矿与八种不同研磨介质之间的电流相互作用，包括低碳钢（含碳量 0.1 wt.%）、中碳钢（含碳量 0.3 wt.%）、高碳钢（含碳量 0.9 wt.%）和含有 0.1 wt.% Ce、0.1 wt.% La、0.1 wt.% Y、4.6 wt.% Cr 或 1.5 wt.% Mn 的研磨介质已经使用 DFT 方法进行了研究。已经研究了这些电相互作用对方铅矿表面的表面结构、表面活性和氧和黄药分子吸附的影响。结果表明，方铅矿表面对氧和黄药分子的吸附以中碳钢（含碳量为0.3wt.%）最强，其次是低碳钢和高碳钢。此外，与含铬、铈、钇和锰的研磨介质相比，含镧（镧含量为0.1wt.%）的研磨介质更有利于方铅矿表面吸附氧和黄药分子。