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Platinum titanium anode is simply to brush or spray precious platinum on the basis of titanium.At this stage or internal titanium anode is mainly brushed.Such electrode has a very wide range of applications.Titanium anode is also known as DSA anode due to its lightweight and flexible manufacturing process.Compared with similar anode titanium anode, it has the following advantages:;
1.The anode size is stable, and the distance between electrodes does not change during the electrolysis process, which can ensure that the electrolysis operation is carried out under the condition of stable cell voltage.
2.Low working voltage, low power consumption,DC power consumption can be reduced by 10-20%.
3.Titanium anode has long service life and strong corrosion resistance.
4.It can overcome the dissolution of graphite anode and lead anode, and avoid the pollution of electrolyte and cathode products.
5.High current density,low over-potential and high catalytic activity of electrode can effectively improve production efficiency.
6.It can avoid short circuit after lead anode deformation and improve current efficiency.
7.The shape is easy to make and can be high-precision.
8.The titanium matrix can be reused.
9.With low over-potential characteristics, bubbles on the surface between electrodes and electrodes can be easily removed, which can effectively reduce the voltage of the electrolytic cell.
Application
Application of coated titanium electrode: chlor-alkali industry,chlorate industry, hypochlorite industry, production of perchlorate, electrolytic method for manufacturing copper foil, persulfate electrolysis, electrolytic organic synthesis, electrolytic extraction of metal, production of electrolytic silver catalyst,electrolytic oxidation method for recovery of mercury, electrolytic water, production of chlorine dioxide, hospital sewage treatment, electroplating industry, disinfection of domestic water and food utensils, treatment of cooling circulating water in power plants, electrolytic method for production of acid-base ionic water, Steel plate chrome plating palladium plating gold plating ruthenium plating, electrodialysis desalination of seawater, can be seen in detail on the website of Dongguan Shengruizi Company.The application fields of the products involve chemical industry, metallurgy, water treatment, environmental protection, electroplating, electrolytic organic synthesis, and other electrolytic industries
Development and manufacturing process of titanium electrode
The earliest period is more than 200 years since 1786.The process of electrolysis is to convert electrical energy into chemical energy. The most representative caustic soda industry, aqueous solution electrolysis industry, can well explain the development history of electrode materials.At first, salt water electrolysis used platinum electrode,natural carbon electrode, natural graphite electrode, magnetic iron oxide electrode and lead dioxide electrode in the laboratory.These are the earliest electrode materials tested.Salt water electrolysis requires that the anode material has good point catalytic performance for chlorine precipitation, good durability, and the ability to inhibit oxygen precipitation.The earliest electrode used in industrial production is graphite electrode.The graphite electrode can fully meet the above requirements when the concentration of salt water is high, but the graphite anode has the following shortcomings in the long-term production: high resistance.Therefore, the power consumption is large; With the progress of electrochemical reaction process, the loss of graphite electrode is large, and the electrode distance changes, resulting in the instability of electrolytic production;The active surface of chlorine release reaction is difficult to maintain.After the human history entered the 1960s, the petrochemical industry developed rapidly.Many large ethylene plants were established in various places, and the production of organic chloride synthesis increased significantly.This requires a big leap in chlor-alkali production.At this time, the graphite anode is required to have mechanical processing ability.If the graphite anode needs to be perforated, the processing performance of graphite anode itself is not very good, so new materials are required to replace it.The development of metal anode is particularly important.The development of metal anode has a long history.The earliest metal anode was mainly platinum anode, but its cost was high and it could not be widely used.From 1910 to 1940, sponge titanium was produced by magnesium thermal reduction and sodium thermal reduction. And mass production.Titanium is used as the base material to expose the anode.Titanium is also known as valve metal.It has stable oxide layer protection, which makes the anode electrode unable to pass through.Therefore, it has good durability and stability under salt water electrolysis conditions.Metal titanium can be machined at will, and can be made into titanium plate, titanium rod, titanium wire, titanium mesh, titanium tube, porous plate, etc.It is widely used.In the 1960s, in addition to the development of coated electrodes, they were widely used in chemical industry, environmental protection, water electrolysis, water treatment, electrometallurgy, electroplating, metal foil production, electromechanical synthesis, electrodialysis, cathodic protection and many other industries.The production of titanium anode is simply to brush or spray precious metal oxide on the basis of titanium. At this stage or internal titanium anode is mainly brushed. Such electrode has a very wide range of applications.Titanium anode is also known as DSA anode due to its lightweight and flexible manufacturing process. Compared with similar anode titanium anode, it has the following advantages:;
The anode size is stable, and the distance between electrodes does not change during the electrolysis process, which can ensure that the electrolysis operation is carried out under the condition of stable cell voltage. Low working voltage, low power consumption, DC power consumption can be reduced by 10-20%.Titanium anode has long service life and strong corrosion resistance.It can overcome the dissolution problem of graphite anode and lead anode, and avoid the pollution of electrolyte and cathode products. High current density, low over-potential and high catalytic activity of electrode can effectively improve production efficiency.It can avoid short circuit after lead anode deformation and improve current efficiency.The shape is easy to make and can be high-precision.The titanium matrix can be reused. 9. With low over-potential characteristics, bubbles on the surface between electrodes and electrodes can be easily removed, which can effectively reduce the voltage of the electrolytic cell.The gas released from the anode in the electrochemical reaction can be divided into two types: chlorine evolution and oxygen evolution.Titanium coated ruthenium anode belongs to chlorine evolution anode, which is generally used in hydrochloric acid, electrolytic seawater and electrolytic salt water environment; Such as ruthenium iridium anode, ruthenium iridium tin anode, etc.Ti-coated iridium series anode belongs to oxygen evolution anode, which is generally used in sulfuric acid environment, such as iridium tantalum anode and iridium tantalum coated titanium anode.There is also a platinum-titanium anode, also known as platinum-titanium electrode, platinum electrode, platinum-plated anode, etc. It is based on titanium and plated with a layer of platinum noble metal.In addition to noble metal elements, other alloy elements are added when preparing the above oxide coating.Adding auxiliary elements to Ru and Ir coatings to form binary, ternary and quaternary metal oxides can significantly improve the performance of titanium anode.It is also helpful to improve the performance of titanium anode by preparing the coating with two-layer or even multi-level structure.The above coated titanium anode has mature technology in China and has been widely used in the following fields:Non-ferrous metal electrolytic production, chlorine salt electrolysis, seawater electrolysis, metal foil manufacturing, surface electrochemical treatment of metal foil, non-ferrous metal electrolytic extraction and recovery, organic electrolysis, industrial electroplating, cathodic protection, electrodialysis, acid-base ion water manufacturing, industrial wastewater treatment and other fields.
