Titanium dioxide, an important inorganic chemical pigment, is mainly composed of titanium dioxide. Titanium dioxide is not only used as colorant in rubber industry, but also has the functions of reinforcement, anti-aging and filling. Add titanium dioxide into white and colored rubber products, and under sunlight, it is resistant to sunlight, cracking, discoloration, high elongation and acid and alkali resistance. Titanium dioxide for rubber is mainly used for automobile tires, rubber shoes, rubber floors, gloves, sports equipment, etc., and it is mainly anatase. But for the production of automobile tires, a certain amount of rutile products are often added to enhance the anti ozone and anti ultraviolet capabilities.

The main application fields of titanium dioxide include coating, plastics, printing ink and papermaking, of which coating accounts for 60%, plastics 20%, papermaking 14%, and others (including cosmetics, chemical fiber, electronics, ceramics, enamel, welding rod, alloy, glass and other fields) 6%. Titanium dioxide is also widely used in cosmetics. Since titanium dioxide is non-toxic and far superior to lead white, almost all kinds of perfumes use titanium dioxide to replace lead white and zinc white. Only 5% - 8% titanium dioxide can be added into the perfume powder to get permanent white, making the perfume more smooth, with adhesion, absorption and covering power. Titanium dioxide can reduce greasy and transparent feeling in gouache and cold cream. Titanium dioxide can also be used in other spices, sunscreen, soap, white soap and toothpaste.

China has become the world's largest consumer of titanium dioxide. From 2011 to 2022, China's titanium dioxide consumption increased from 1.65 million tons/year to more than 10 million tons/year, with a compound annual growth rate of 17.11%, far exceeding the GDP growth rate. In 2011, the net export volume of titanium dioxide in China reached 180000 tons, and now the export volume of titanium dioxide in China has reached more than 2 million tons, which indicates that the quality of domestic titanium dioxide has been improved, which can meet the demand of most downstream products in China. While replacing some imported products, it also increases the export volume.

To improve the quality of titanium dioxide, it is necessary to have titanium dioxide processing equipment: sand grinder. The sand mill uses a material pump to mix the pre dispersed and moistened materials with liquid materials, causing the materials and the grinding medium in the material barrel to be stirred by a high-speed rotating disperser, resulting in stronger collision, friction, and shear effects between the solid particles in the material and the grinding medium, achieving the goal of accelerating the grinding of fine particles and dispersed aggregates; After the abrasive is dispersed, it is separated by a dynamic separator, and the abrasive flows out through the discharge pipe; The horizontal sanding machine is particularly suitable for products with dispersed sanding, high viscosity, and fine particle size requirements. Now, the fineness of titanium dioxide basically reaches the nanometer level, so it is necessary to grind and disperse the titanium dioxide with nanometer sand mill to obtain higher quality titanium dioxide.