Diatomite is a fossil diatomite deposit formed after the death of a single celled plant called diatom and a accumulation period of about 10000 to 20000 years. Diatom is one of the earliest protozoa on earth, living in seawater or lake water. It is this diatom that provides oxygen to the earth through photosynthesis and promotes the birth of humans, animals and plants.

Diatomite is mainly used as filter aid and functional filler. As a filter aid, it is used for filtration in pharmaceutical field, water treatment industry, oil industry and food industry. As a filler for glass fiber reinforced plastics, rubber and plastics, it can significantly enhance the rigidity and hardness of products, improve the heat resistance, wear resistance, aging resistance and other properties of products, and greatly reduce the cost. As a papermaking filler, it can improve the opacity and brightness of the paper, improve the smoothness and printing quality, and reduce the expansion and contraction of the paper caused by humidity. As the matting agent of the coating, it can reduce the surface gloss of the coating and increase the wear resistance and scratch resistance of the coating. As an ideal carrier of pesticide preparation and high-efficiency compound fertilizer, it can make the preparation stable and prolong the efficacy, and has strong adsorption capacity for soluble nitrogen, phosphorus and potassium. It has a certain slow-release effect in soil and is conducive to crop growth. As the raw material for producing brown glass, microporous glass, microporous glass beads and glass fiber, it can reduce the cost. As the filler of cement, it can improve the fluidity and plasticity of concrete, and improve the wear resistance and corrosion resistance of products. As the filler of pavement and waterproof coiled material with high asphalt content, it can effectively solve the phenomenon of oil flashing and slurry squeezing, improve the skid resistance, wear resistance, compressive strength, corrosion resistance and greatly improve the service life. Diatomite has high porosity, small bulk density, thermal insulation, heat insulation, non combustion, sound insulation, corrosion resistance and other excellent properties. It can also be used as thermal insulation material.