Contributions to the Ohmic Drop in the Electrolysis of ZnCl2 in a Molten Chloride Electrolyte

摘要: The electrowinning of zinc from chloride with a molten electrolyte was investigated. electrolysis shows ohmic limitations. energy consumption is to large extent determined by the anodic reaction, evolution chlorine. chlorine gas plume visualised in see-through furnace and images were analysed determine angle. This parameter serves as an input for model contributions electrolyte, layer bubbles sticking anode, well velocity. results indicate that major contribution (∼60%) drop due stagnant growing thereby decreasing effective anode area coverage. velocity influences coverage characteristics some extent, which drop.