Characteristics and application of titanium rod
Titanium rods are widely used in chemical industry because of their excellent corrosion resistance and mechanical properties.Titanium can replace stainless steel as corrosion resistant material, can reduce the cost, reduce the chlor-alkali industry is China’s raw material industry, its products are the basic chemical raw materials, widely used in light textile, paper, pesticide, medicine, building materials, metallurgy and other industries. Chlor-alkali is one of the key development projects in chemical industry, and it is also a large domestic user of titanium materials.Chlor-alkali industry is strong corrosive, its production process in the process of medium and product such as saturated brine, wet chlorine, caustic soda, hydrochloric acid and sulfuric acid has strong corrosive, so in chlor-alkali production were engineering have to be very careful in the choice of its device structure material, otherwise will appear in a production run, run, drop, leakage phenomenon, such as seriously affect the normal production and product quality.This is because titanium has better corrosion resistance to chloride ions than commonly used stainless steel and other non-ferrous metals.At present, titanium is widely used in the chlor-alkali industry to manufacture metal anode titanium electrolyzer, ion membrane electrolyzer, wet chlorine cooler, refined brine preheater, dechlorination tower, chlorine gas cooling and washing tower, etc.In the past, most of the main parts of these equipment were made of non-metallic materials (such as graphite and POLYvinyl chloride). Due to the unsatisfactory mechanical properties, thermal stability and processing performance of non-metallic materials, the equipment was heavy, energy consuming and short in life, which also affected the product quality and polluted the environment.Therefore, since the 1970s, metal anode electric tank and ionic membrane electric tank have been successively used to replace graphite electric tank, and titanium wet chlorine cooler has been used to replace graphite cooler, and good results have been achieved.
With the rapid development of China’s chlor-alkali industry and the emergence of new equipment and new processes, the application range of titanium in the chlor-alkali industry has gradually expanded, and it is widely used in the manufacture of metal anode electrolyzer, ion membrane electrolyzer, wet oxygen cooler, refined brine preheater, dechlorination tower, chlorine gas cooling and washing tower, etc.For example: the application of titanium wet chlorine coolers.Salt electrolysis production caustic soda is to produce a large number of high temperature wet chlorine gas, the temperature is generally 75~95℃, need to be used after cooling and drying.