Preparation and Application of Lead Dioxide Electrode for Zinc Electrolysis

According to the process of anodic oxygen evolution in sulfate system for zinc electrolysis,Ti-base lead dioxide electrode can be prepared to use in this case. The surface characterization of the electrode was studied by Scanning electron microscopy(SEM) and X-ray diffraction(XRD). The electrode lifetime was tested in 1mol/L H2SO4 solution at 60 degrees C,and the electro-catalytic properties was examined by polarization curves. Then these samples was enlarged and simulation test was conducted at Mengzi marriage zinc smelter in Yunnan. The results show that the electro-catalytic properties is better and the electrodes lifetime is longer compared to the traditional lead electrode. Moreover,it has a significant effect in reducing energy consumption, manufacturing cost and improving the production and grade of zinc.