Main application areas of titanium in the chemical industry
Chlor-alkali industry
The earliest user of titanium in the chemical industry was the chlor-alkali industry. This includes the production of chlorine, chlorine oxides, pesticides, bleaching powder, etc. In the production of chlorine, titanium equipment and pipelines account for almost a quarter of its total mass. Such as metal anode electrolyzers, ion membrane electrolyzers and anode liquid pumps, shell-and-tube wet chlorine coolers, chlorine wastewater dechlorination towers, chlorine cooling and washing towers, refined brine preheaters, vacuum dechlorination pumps and valves, etc.
Soda ash industry
In soda ash production, titanium is mainly used for crystallization external coolers, distillation tower top ammonia condensers, ammonium chloride mother liquor heaters, plate heat exchangers, umbrella plate heat exchangers, carbonization tower cooling pipes, carbon dioxide turbine compressor rotor impellers, alkali liquid pumps, etc.
Vacuum salt production industry
Titanium ammonia evaporator, titanium preheater, titanium precooler, titanium flange, titanium tube sheet, titanium pump shell and titanium elbow.
Petrochemical fiber
At present, some titanium equipment has been used in petrochemical fiber enterprises such as polyester, nylon, and vinylon, whether imported from abroad or designed and manufactured domestically. The application of titanium equipment has played a positive role in the development of chemical fiber production in my country, especially in safe, stable and continuous production, improving product quality, preventing premature corrosion and failure of stainless steel, increasing equipment life, reducing parking and maintenance, and improving comprehensive economic benefits.
Fine chemical industry
The industrial raw materials of propylene oxide units are highly corrosive media. The two main raw materials used in PO production are liquid chlorine and propylene. These highly corrosive media lay the foundation for the corrosion of PO production equipment pipelines. Under such process conditions, metals such as carbon steel, Al, Cu, Ni, and stainless steel cannot resist corrosion. Only titanium is a relatively ideal corrosion-resistant metal material.
Inorganic salt industry
Inorganic salts mainly include chlorates and potassium salts. Domestic sodium chlorate production has developed rapidly in the past two years, with a total production capacity of over 1 million tons, and about 500,000 tons are under expansion or preliminary work. Chlorate titanium equipment mainly includes electrolytic cells, titanium anodes, reaction generators, evaporators, etc., and about 15 tons of titanium are needed for every 10,000 tons of sodium chlorate.
Potassium salt products include potassium chloride, potassium sulfate, potassium nitrate, potassium carbonate, etc. At present, the total production capacity of potassium nitrate and potassium carbonate in China is about 600,000 tons. Evaporators, preheating tanks and coolers in the production of potassium nitrate and potassium carbonate require titanium equipment.
Other industries
Titanium dioxide - titanium is used for thin film concentrators, calcining kiln feed pipes, centrifuge distribution plates, etc.
Urea - titanium is used for urea synthesis tower lining, ammonia stripping tower, general decomposition tower heater, methylamine pump inlet and outlet valves and springs, high-pressure mixers, etc. Dyes - titanium is used for coil heat exchangers, absorption towers, purification tower nozzles, fans, water ring vacuum pumps, filters, etc. Nitric Acid - Titanium is used in nitric acid evaporators, nitrogen oxide tail gas preheaters, nitric acid steam preheaters, gas scrubbers, rapid coolers, condensers, turbo blowers, pumps, valves, pipes, etc.
