At present, the application fields of titanium in chemical industry are as follows:
1. Chlor alkali industry
The earliest and largest user of titanium in chemical industry is chlor alkali industry. These include the production of chlorine, chlorine oxide, pesticides, drift powder, etc. in the production of chlorine, titanium equipment and pipelines account for almost a quarter of its total mass'. For example, it is used in metal anode electrolyzer, ionic membrane electrolyzer and anode liquid pump, tubular wet chlorine cooler, chlorine wastewater dechlorination tower, chlorine cooling washing tower, refined brine preheater, pumps and valves for vacuum dechlorination, etc.
2. Soda ash industry
In the production of soda ash, titanium materials are mainly used in crystallization external cooler, ammonia condenser on the top of distillation tower, ammonium chloride mother liquor heater, flat plate heat exchanger, umbrella plate heat exchanger, cooling pipe of carbonization tower, rotor impeller of carbon dioxide turbine compressor, alkali liquor pump, etc.
3. Vacuum salt industry
Titanium ammonia evaporator, titanium preheater, titanium precooler, titanium flange, titanium tube plate, titanium pump shell and titanium elbow.
4. Petrochemical Fiber
At present, some titanium equipment has been used by Petrochemical Fiber enterprises such as polyester, nylon and vinylon, both imported from abroad and designed and manufactured by China. The application of titanium equipment has played a positive role in the development of China's chemical fiber production, especially in safe, stable and sustainable production, improving product quality, preventing premature corrosion and failure of stainless steel, improving the service life of equipment, reducing parking and maintenance, and improving comprehensive economic benefits.
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 liquid chlorine and propylene. These strong corrosive media have laid the corrosion foundation for the equipment and pipelines of Po production plant. Under such process conditions, metals such as carbon steel, Al, Cu, Ni, stainless steel and so on cannot resist corrosion, but titanium is the ideal corrosion-resistant metal material.
6. Inorganic salt industry
Inorganic salts mainly include chlorate and potassium salt. The domestic production of sodium chlorate has developed rapidly in the past two years, with a total production capacity of more than 1million tons, and about 500000 tons are under expansion or preliminary work Titanium chlorate equipment mainly includes electrolytic cells, titanium anodes, reaction generators, evaporators, etc. about 15t titanium material is required for every 10000 tons of sodium chlorate.
Potassium salt products include potassium chloride, potassium sulfate, potassium nitrate, potassium carbonate, etc. at present, the total capacity of potassium nitrate and potassium carbonate in China is about 600000 tons. Titanium equipment is required for evaporators, preheating tanks and coolers in the production of potassium nitrate and potassium carbonate.
7. Other industries
Titanium dioxide and titanium materials are used in film concentrators, calciner feed pipes, centrifugal distribution plates, etc.
Urea titanium material is used for urea synthesis tower lining, ammonia stripper, general decomposition tower heater, methylamine pump inlet and outlet valves and springs, high-pressure mixer, etc.
Dye titanium is used in coil heat exchanger, absorption tower, purification tower nozzle, fan, water ring vacuum pump, filter, etc.
Titanium nitrate is used for nitric acid evaporator, nitrogen oxide tail gas preheater, nitric acid steam preheater, gas scrubber, fast cooler, condenser, turbine blower, pump, valve, pipeline, etc.
