(中南工业大学矿物工程系， 长沙 410083)
摘 要: 在Neumann法测量接触角的装置中，引进电位控制参数，较为精确地研究了矿物电极电位与矿物表面接触角的关系，对方铅矿和黄铁矿的研究结果表明：矿物电 极电位影响矿物表面润湿性，改变矿物电极电位时，矿物表面接触角发生明显变化，在一定电位下接触角可达最大。
关键字: Neumann法 接触角 矿物电极电位 浮选电化学
（Department of Mineral Engineering;
Central South University of Technology, Changsha 410083）
Abstract:An improved method based on Neumann way which is used to measure the contact angle has been developed to study more accurately the effect of mineral electropotential on its contact angle. The results of galena and pyrite showed that the wettability of mineral surface can be changed by adjusting the mineral electropotential. At certain electropotential, the contact angle of mineral surface can reach its maximum value.
Key words: Neumann way contact angle mineral electropotential electrochemistry of flotation
