Fine processing of titanium dioxide
Titanium dioxide (TiO2), as one of the whitest substances in the world, occupies an irreplaceable position in the industrial field with its excellent hiding power, brightness and stability. It not only plays a key role in industries such as coatings, plastics, paper and cosmetics, but also shows great potential in the fields of environmental protection and new energy. This article will explore the composition and application of titanium dioxide in depth, and focus on the grinding process that is indispensable in its production process, especially the application of Raymond mill.
1. Composition of titanium dioxide
The main component of titanium dioxide is titanium dioxide (TiO2), which is an inorganic compound with high refractive index and high light scattering ability. There are two main crystal structures of titanium dioxide: anatase and rutile. Anatase titanium dioxide has high photoactivity, while rutile is known for its higher stability and weather resistance.
2. Application of titanium dioxide
Coating industry
Titanium dioxide is an indispensable white pigment in the coating industry. It can provide excellent hiding power and brightness, while also enhancing the durability and weather resistance of the coating.
Plastic industry
In plastics, titanium dioxide is used as a white pigment and UV stabilizer. It can improve the whiteness and hiding power of plastic products, while also preventing degradation caused by ultraviolet rays.
Papermaking industry
Titanium dioxide is used in the papermaking industry to improve the whiteness and opacity of paper. It can make paper brighter and improve the printing performance of paper.
Cosmetics industry
In cosmetics, titanium dioxide is used as a white pigment and UV shielding agent. It can provide a natural skin tone while protecting the skin from UV damage.
3. Titanium dioxide grinding process
The production process of titanium dioxide includes ore extraction, chlorination or sulfuric acid treatment, calcination, and grinding and grading of the final product. Among them, grinding and grading are the key steps to determine the quality of titanium dioxide. The grinding process directly affects the particle size and distribution of titanium dioxide, which in turn affects its application performance. Titanium dioxide with uniform particle size and narrow distribution can provide better hiding power and brightness. In the current market, Raymond mill is generally used for processing.
Advantages of Raymond mill processing
Raymond mill is a highly efficient grinding equipment, which is widely used in the grinding and grading of titanium dioxide. Raymond mill grinds the coarse product into fine powder through the extrusion and grinding action of the grinding roller and grinding ring, and accurately grades it through the classifier.
High efficiency and energy saving
The Raymond mill adopts an efficient grinding principle and can grind materials into fine powder in a short time. Compared with traditional ball mills, the Raymond mill has lower energy consumption and higher grinding efficiency.
Uniform particle size
The Raymond mill is equipped with a classifier, which can classify materials according to particle size, and the product particle size is uniform. This is especially important for the production of titanium dioxide, because titanium dioxide with uniform particle size can provide better performance during application.
Easy operation
The Raymond mill has a reasonable structural design, easy operation and convenient maintenance. Its high degree of automation can reduce manual operation and improve production efficiency.