Equipment commonly used for the production of titanium dioxide by chlorination method
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1. Molten salt chlorination furnace: This technology originated in the Soviet Union, but the equipment there had limited specifications and production capacity. To meet the needs of titanium dioxide production, joint design efforts were carried out with domestic design agencies, resulting in the creation of current molten salt chlorination furnaces in China. These furnaces are 14 meters high and 5 meters in diameter, with a daily production capacity of 120 tons of TiCl4. They represent the first instance in the world of integrating a molten salt reaction furnace with an oxidation process. 2. Oxidation reactor: This technology represents the key equipment in the production of titanium dioxide via chlorination. Through 5–6 years of joint research efforts with the Chinese Academy of Sciences, our company has developed a new type of scar-removing oxidation furnace that is among the most advanced in China and features independent intellectual property rights. Its cost is much lower than that of imported equipment; it has a daily production capacity of 50 tons per unit, and its continuous operation period exceeds 25 days. 3. Preheaters: This term refers to both the O2 preheater and the TiCl4 preheater – devices that supply heat to O2 and TiCl4 for the oxidation reaction. This technology was introduced from the United States; our company has mastered its functioning and is capable of carrying out repairs on its own. 4. Toluene burner: This device is manufactured in the United States and tested in the UK; it is expensive and serves to provide thermal energy for oxidation reactions. Its production has now been localized in China. It has a low cost and a lifespan that exceeds that of imported equipment. 5. Finished product cooler: This is a large-scale device developed independently; it is unique in China. It features advanced technology and low cost. The temperature of the material at the inlet is around 230°C, and thanks to spiral propulsion, the temperature of the material at the outlet drops to about 45 degrees Celsius, which is the appropriate temperature for packaging. 6. Jet mill: It is a large-scale grinding equipment with flat design and discharge from the top. Imported from the United States, it is the largest of its kind in China and features advanced technology; it has a strong capacity for grinding titanium dioxide. Its main components are now manufactured domestically, and its service life is much longer than that of imported components. 7. Sand grinder: A product from the American company Draiswerke. It is a device used to grind the TiO2 particle aggregates formed in the oxidation reactor into individual particles. Its advantages include small size, high production capacity, high degree of automation, and minimal need for maintenance. 8. Drum filter: a product from the American company Emico, with dimensions of Φ3040mm*4267mm and a filtering area of 40 m2. It is used for washing, filtering, and dehydration processes. Its advantages include the integration of material distribution, dehydration filtering, and unloading functions; it features a high degree of automation and continuity, as well as strong filtering capacity and high efficiency.
:Lol, our company used to work on titanium dioxide projects too, but we’re not doing that anymore. The market situation for titanium dioxide isn’t very good
It’s not easy for an oxidation furnace to operate for 25 days; previously, those in Jinzhou could only function for 7–10 days. It seems that Jinzhou is the only place that produces titanium chloride white, and their technical improvements are quite good
I’m working on a course design; I plan to work in this field going forward, and it’s exactly what I need
Is the original poster involved in titanium dioxide production, or is he in research and design? He has extensive knowledge of the chlorination method.
Thank you so much! ! The original poster is an expert
I’m studying*, but the industry isn’t very ideal
Based on what I know, here are some personal opinions: In terms of the production of titanium dioxide using the chlorination method, given the current trends, and excluding both objective and subjective factors, it is likely that in another 3 to 5 years, the projects under construction in China will all enter the stage of trial operation and debugging. In this field, everyone is still exploring their way forward, and competition is likely to be fierce in the future. Technically speaking, the key issues will still lie in boiling chlorination bed technology and competition over raw materials. In my opinion, the \"molten salt chlorination furnace\" technology is an alternative approach; it can help avoid the problem of high calcium content in raw materials to a certain extent, but it also introduces the tricky issue of large amounts of waste residue. Based on the literature available on circulating fluidized bed boilers, there are currently no established formulas for high-speed fluidized beds to enable parameter calculation and design. (At least it’s not made public.) This is also the technological core of various developed ** countries. The poster’s claim that \"our company, through 5–6 years of joint research with the Chinese Academy of Sciences, has developed the most advanced scar-removing oxidation furnace in China, one that possesses independent intellectual property rights\" also seems to rely on strategies such as adopting advanced techniques or using specific catalysts to overcome the challenges involved. The titanium dioxide production projects using the chlorination method that are currently planned or under construction in China also rely on imported technologies, but it is unlikely that DuPont’s technology will be adopted (that’s my opinion). The problems associated with this are obvious: the quality of titanium slag will play a significant role in determining the smoothness of the production process and the quality of the final product. The chlorination process for producing titanium dioxide is a project that requires substantial investment; any strategic mistake on a broader scale or oversight in certain details can result in significant financial losses. I hope that capable enterprises in the country will pursue this path, as the sulfuric acid process for producing titanium dioxide has reached the end of its useful life (for rutile-type titanium dioxide). Personal opinion, for reference only!