In the hydrometallurgical industry, non-ferrous metals are extracted electrolytically. Common solution systems include chloride solution, sulfate solution, and chloride mixed solution. The graphite, lead alloy, and lead dioxide anodes used in traditional methods have various problems in practical applications, especially the problem of secondary pollution. In recent years, as environmental protection requirements have become more and more stringent, titanium has gradually been used as the The collective precious metal oxide anode is replaced.
When the electrolytic solution system is different, the gas precipitated from the anode is also different. When the anode works in different environments, the active ingredients of various coatings with different performance requirements are also different.
1. Coated titanium anode for electrolytic extraction of non-ferrous metals with chloride solution
When non-ferrous metals are electrolytically extracted from this solution, a chlorine evolution reaction occurs on the anode. The active coating requires low chlorine overpotential, good electrical conductivity, strong chlorine corrosion resistance, and long anode service life. The requirements for the anode are relatively high. Our company adjusted the number of coating applications based on the characteristics of the solution system. After a large number of pain formula screening tests, we selected and added two active elements to increase the anodizing potential and extend the service life. .
2. Coated titanium anode for electrolytic extraction of non-ferrous metals from sulfate solution
This solution system often uses lead-silver anode for electrolytic metal deposition. However, during the electrolysis process, the anode will dissolve, which not only consumes the titanium anode material, but also affects the service life of the anode, and the lead dissolved in the solution will precipitate on the cathode. It will increase the lead impurity in the product and reduce the quality of the product. When metal is electrodeposited from a sulfate solution, an oxygen evolution reaction mainly occurs on the anode. The requirements for titanium anodes are high electrocatalytic activity, good durability against oxygen, and long anode working life.
In order to overcome the problems existing in the use of traditional anodes, after years of hard work and continuous exploration, we have developed a titanium anode with a new coating formula, which mainly uses Ir as the main element, adds a ternary or quaternary formula coating, and has strong electrocatalytic activity. , good electrical conductivity, effectively reducing the cell voltage, and at the same time, also increasing the service life of the anode.
3. Coated titanium anodes for chloride and mixed solutions
During electrolysis in a mixed system solution, oxygen and chlorine evolution reactions will occur on the anode. When the concentration of sulfuric acid solution increases, the oxygen evolution reaction on the anode intensifies, which will reduce the chlorine release current efficiency and affect the anode service life of the active coating.
With the development of industry in recent years, the components of solution systems have become more and more complex. How to improve the efficiency of electrodeposited metals, reduce energy consumption, and protect the environment has always been a proposition for our "green technology" product research and development.
Company: Baoji Dynamic Trading Co., Ltd
Country:China
Add:Baoti road,Jintai,Baoji city,Shaanxi,China
Cel:+86 18391896637(WHATSAPP)
Gmail:alisa@jmyunti.com
Website:www.jm-titanium.com
