The electrochemical behaviour of galena,sphalerite and pyrite during grinding medium in the presence of butyl xanthate or sodium diethyldithiocarbamate (DDTC) was analysed in this paper.

• 本文根据浮选电化学理论分析讨论了丁黄药和乙硫氮在方铅矿、闪锌矿及黄铁矿三种硫化矿物表面的电化学作用过程，分析了磨矿环境具有低电位还原气氛产生的原因。