The academic name of titanium anode is DSA anode, also known as titanium based noble metal oxide anode, is a kind of insoluble anode. A new type of electrode is made of titanium and coated with noble metal oxide as active component by special process. At present, it has been widely used in various fields, such as chemical industry, electroplating, water treatment, cathodic protection, environmental protection, Marine anti-corrosion and other industries and fields.
(1) Application of coated titanium anode in chemical industry
1. Chlor-alkali industry
2. Chlorate production
3. Hypochlorite production
(2) Application of coated titanium anode in industrial wastewater treatment
Electrochemical oxidation or electrochemical treatment of industrial wastewater, including industrial water, factory wastewater treatment process, the electrode not only plays a role in the transfer of current, but also plays a catalytic role in the oxidation and degradation of organic matter, in this process because it does not cause secondary pollution, known as green water treatment. The anode in the process of reaction, the organic matter in sewage through electrochemical transformation, directly or indirectly into CO2 and water, can effectively degrade COD, removal of ammonia nitrogen effect is obvious.
(3) Application of coated titanium anode in the production of electrolytic silver catalyst
Formaldehyde and acetaldehyde are important chemical raw materials. Using electrolytic silver catalyst to produce formaldehyde can achieve high efficiency and low energy consumption. However, electrolytic silver catalysts were produced using platinum electrodes in the past, which are expensive and scarce. Titanium anodes have been used in production because they are easy to manufacture, relatively cheap and have good corrosion resistance. The coating titanium anode shows good electrical conductivity and corrosion resistance during production and the quality and activity of silver catalyst produced meet the requirements.
(4)Application of coated titanium anode in electrolytic extraction of non-ferrous metals
The key technology of electrolytic extraction of non-ferrous metals lies in the selection and equipment of the anode for electrodeposition. It is required that the anode selected should be corrosion resistant, good stability, long-term use and have good electrocatalysis to reduce the potential and cell voltage in the anode reaction process. At present, titanium anode coated with a mixture of ruthenium, iridium and platinum has been widely used in electrodeposition for metal extraction in China.
(5)Application of coated titanium anode in the extraction of ionic water (acid, basic ionic water) by electrolysis
The benefits of alkaline ion water on the human body are not much described, titanium anode in the production of ionic water, tap water through the filter, into the generation of ionic water electrolytic cell, after electrolysis, in the cathode area to produce alkaline ion water, in the anode area to produce acid ion water. Selecting titanium anode with excellent performance, the ionized water can be compared with platinum-plated electrode and the price is cheap, the service life is long and the batch can be put into production.
(6)Titanium anodes for industrial electroplating
In the electroplating industry, the use of coated titanium anode can keep the plating solution in a stable state, is a good acid corrosion resistance electrode material, especially in the application of gold plating, copper plating, chromium plating, rhodium plating, show good performance.
(7) Application of coated titanium anode in cathodic protection
MMO coated titanium anode cathodic protection is an effective method to protect metals from corrosion by applied current. The life of the anode is directly related to the life of the whole cathodic protection system. At present, the domestic anode technology has reached more than 50 years. And can adapt to sea water, fresh water, soil, desert and other environments. According to different environment and use conditions, it can be divided into MMO anode strip, MMO tube anode, MMO ring anode, flexible anode, expanded mesh anode and so on.
(8)Application of coated titanium anode in organic electrolysis synthesis
With the technical development of oxide coated titanium anode, the range of oxygen evolution and chlorine evolution potential is becoming larger and larger, which can be adapted to maintain high stability under complex actual working conditions and avoid the oxidation of organic matter on the electrode surface. Modification of the oxide coating on the electrode surface and the process will also reduce the cost and allow the electrochemical electrode technology to play a greater role in organic electrosynthesis.
(9) Application of coated titanium anodes in other fields
With the development of China's industrialization and the demand of the market, titanium anode has been more and more used in people's life, such as ionic water machine, hydrogen rich cup, disinfection washing machine, fruit and vegetable disinfection machine, household portable disinfection machine, green environmental protection, good market prospects.
