机械活化在方铅矿发电浸出过程中的应用

Application of Mechanical Activation in Electrogenerative-leaching Process of Galena

进行了机械活化后方铅矿发电浸出的研究。采用双电池技术对该过程进行研究。结果表明,由于矿物在行星球磨中机械活化后晶格常数发生变化,晶格畸变增加,化学活性提高,导致方铅矿电极开路电位负移,发电浸出过程输出电压增加。此外,矿物在机械力的作用下表面分形性质发生变化,导致发电浸出过程输出电流增加。

The electrogenerativeleaching of galena mechanical activated in planetary centrifugal mill are studied. A Dual cell system is introduced to study the leaching process. The experiment results indicate that activation can result in increase of galena's activation lattice constant, lattice distortion as well as crystal defect concentration, which results in decreasing of initial potential of galena and the increasing of out put potential. In additional, the mechanical activation affects the surface fractal property, which results in increasing of out put current of electrogenerativeleaching process.