Diatomite Filter Aid Food Grade Diatomaceous Earth Powder

1.Dried products: After the raw diatomite being drying under 100ºC~300ºC, and then pulverization purified by high pressure gas flow, the product can be produce by classification, and it turns to be gray white or light yellow.

2. Roasted products: the product is produced and roasted after refined diatomite under high temperature 800ºC~900ºC. With high pressure gas folw pulverization and classfication, it turns to be reddish ornage.

3. Aided-melting roasted products: the cleaned diatomite is mixed with proper amounts of melting additive and roasted after refined ones under 900ºC~1200ºC, pulvweization and calssfication, it turns to be white.
 

Diatoms are one of the earliest protozoa on the earth. They live in seawater or lake water. They create 70% of the oxygen on the earth. During the growth process, it continuously absorbs the free silicon in the water to form a solid and porous cell wall. After the end of the diatom life cycle, the cell wall will not decompose and deposit to the underwater bottom. Diatomite is formed through crustal changes.

This diatomite is formed by the deposition of the remains of single celled aquatic chemical Book Plant diatom. The unique performance of this diatom is that it can absorb free silicon in water to form its bones. When its life is over, it will deposit and form diatomite deposit under certain geological conditions. It has some unique properties, such as porosity, low concentration, large specific surface area, relative incompressibility and chemical stability. After changing its particle size distribution and surface properties through processing processes such as crushing, sorting, calcination, air flow classification and impurity removal, it can be applied to a variety of industrial requirements such as coatings and paint additives.