The difference between rutile titanium dioxide and anatase titanium dioxide:
1. The crystal types of the two are different. Titanium dioxide has three crystal structures, brookite, anatase, and rutile. The brookite type cannot exist stably in nature for a long time due to its unstable crystal structure, so it is not used in small quantities and has no industrial value. The rutile type tends to be more stable.
2. There is a difference in particle size distribution between rutile and anatase products: Since the crystal form of rutile products tends to be more hexahedral, it is easier to disperse evenly than anatase, and the agglomerates formed by it are more uniform. The particle size distribution is narrower.
3. Although the production process of rutile and anatase sulfuric acid method are basically similar, there are great differences in the specific parameters.
4. Anatase products can only be produced by sulfuric acid method, but rutile products can be produced by sulfuric acid method and chloride method.
5. The last is the difference of the coating: sharp titanium products are basically calcined and settled, and after being broken by Raymond mill, they are packaged and sold.
In order to better improve its dispersion and weather resistance, rutile products are surface treated with alumina or zirconium after calcination, and part of the organic treatment is also carried out at the same time.
In fact, the performance and use of the two are equal, the main reason is that the difference between the two is in the weather resistance. The weather resistance of rutile is better, and it can be exposed to the sun for ten years, and it has good acid and alkali resistance. The anatase type is only inferior to rutile in this respect. It is mainly used indoors, while rutile can be used both indoors and outdoors. The two are in between.
Post time: Aug-01-2023