What Are The Applications Of Titanium in The Chemical Industry?
Application of titanium in chemical industry
At present, the only application fields of titanium in the chemical industry are:
1. Chlor-alkali industry
The earliest titanium in chemical industry, the user is the chlor-alkali industry. These include the production of chlorine, oxychloride, pesticides, drift powder, etc. In the production of chlorine, titanium equipment and pipes account for almost a quarter of its total mass'. Such as metal anode electrolyzers, ion membrane electrolyzers and anolyte pumps, tubular wet chlorine coolers, chlorine wastewater dechlorination towers, sterilization cooling washing towers, refined brine preheaters, vacuum dechlorination pumps and valve, etc.
2. Soda ash industry
In the production of soda ash, titanium materials are mainly used in the crystallization external cooler, the ammonia condenser at the top of the distillation column, the ammonium chloride mother liquor heater, the plate heat exchanger, the umbrella plate heat exchanger, the cooling pipe of the carbonization tower, and the carbon dioxide turbine compressor. Rotor impeller, lye pump, etc.
3. Vacuum salt industry
Titanium ammonia evaporator, titanium preheater, titanium precooler, titanium flange, titanium tube sheet, titanium pump casing and titanium elbow.
4. Petrochemical fiber
At present, petrochemical fiber enterprises such as polyester, nylon and vinylon, which are imported from abroad or domestically designed and manufactured by themselves, have used some titanium equipment. The application of titanium equipment has played a positive role in the development of chemical fiber production in my country, especially for safe, stable and continuous production, to improve product quality, to prevent premature corrosion and failure of stainless steel, to improve equipment service life, to reduce downtime and maintenance, and to improve comprehensive economic benefits. made a significant contribution.
5. Fine chemical industry
The industrial raw material of propylene oxide plant is a strong corrosive medium. The two main raw materials used in PO production are cyanide and propylene. These strong corrosive media lay the foundation for corrosion of PO production equipment and pipelines. Production under this process conditions, such as carbon steel, Al, Cu, Ni, Stainless steel and other metals are not resistant to corrosion, only titanium is an ideal corrosion-resistant metal material.
6. Inorganic salt industry
Inorganic salts mainly include chlorate and potassium salt. Domestic production has developed rapidly in the past two years. The total production capacity has exceeded 1 million tons, and another about 500,000 tons is under expansion or preliminary work. The equipment made of chlorate titanium mainly includes electrolytic cells, titanium anodes, and reaction generators. , evaporator, etc., about 15t of titanium material is required for every 10,000 t***.
Potassium products include potassium chloride, potassium sulfate, potassium, potassium carbonate, etc. At present, the total production capacity of potassium and potassium carbonate in China is about 600,000 tons. Evaporators, preheat tanks and coolers in the production of cyanide and potassium carbonate require titanium equipment.
7. Other industries
Titanium dioxide Titanium material is used in thin film concentrators, calcining kiln feed pipes, centrifuge distribution plates, etc.
Urea Titanium material is used for lining of urea synthesis tower, ammonia stripper, heater of general decomposition tower, inlet of pump, discharge valve and spring, high pressure mixer, etc.
Dyestuff Titanium is used in coil heat exchangers, absorption towers, purification tower nozzles, fans, water ring vacuum pumps, filters, etc.
Nitric acid Titanium material is used in nitric acid evaporator, nitrogen oxide tail gas preheater, nitric acid steam preheater, gas scrubber, rapid cooler, condenser, turbo blower, pump, valve, pipeline, etc.
