Application Test On Lead Anodes In Zinc Of Electrolytic Deposition Production

Zinc Hydrometallurgy is the most important method to produce zinc. The zinc electrowinning is a important procedure in zinc electronic deposition, whose Economic Index reflects the technical level of zinc smelting. The power consumption of the zinc electrowinning takes up 70% of the general energy consumption. The operation, technology and economic target of the zinc electrowinnin not only reflects the quality of Zinc Hydrometallurgy, but also the power consumption. To ensure sustainable development, the country has unveiled a series of concrete measure. It makes it difficult for local companies to enter the industry, which brings in more difficulty for industry expansion. More and more companies must have technical reform in order to improve electric energy using status and reduce power consumption.The electric energy of anodic reaction takes up 60% in the process. So it is important to choose the anode materials. Insoluble anodes were employed in the zinc tank. Nowadays, binary alloy anode plate and multi-alloy anode plate are commonly used. They can meet the requirement of the production, but the effectiveness and cost are not the same.How to select anode materials in production process is an important period. The performance characteristic of binary alloy anode plate and multi-alloy anode plate is analyzed by experiment in production groove, the amount and component of zinc separating out, the electric energy of consumption, the thickness and weight of anode electrode and useful time of anode electrode plate are researched with emphasis. Through the characteristic comparison of two kinds of anode electrode plate, the different of comprehensive characteristic in binary alloy anode plate and multi-alloy anode plate is realized. The temperature of electrolyte and the concentration of Mn²⁺ are also discussed. It can say that the concentration of Mn²⁺ is the main reason for characteristic change of anode electrode and high electric energy consumption, the targeted measure is given in controlling the temperature of electrolyte and the concentration of Mn²⁺.The research results can guide to develop the new anode materials. It can be used to choose scheme of zinc electrowinning in the transformation projects.