Introduction of expanded vermiculite

　　Vermiculite is a kind of hydrate, which is massive and flaky. The volume of interlayer water molecules increased 6-15 times after high temperature burning. Rich in nitrogen, phosphorus, potassium, aluminum, iron, magnesium, silicate and other components. Vermiculite has higher layer charge number, so it has higher cation exchange capacity and stronger cation exchange adsorption capacity. Features: light weight, good water and fertilizer adsorption performance, not rotten, can be used for 3-5 years.

　　The raw ore of raw vermiculite is calcined at high temperature and becomes expanded vermiculite. The conventional particle sizes of expanded vermiculite are 0.5-1mm, 1-3mm, 2-4mm, 3-6mm, 1-6mm, etc. In addition, we can also produce other granularity models according to the production needs of customers. Vermiculite powder is made of raw vermiculite by high temperature roasting, screening and grinding. The main models are 20-40 mesh, 40-60 mesh, 60-80 mesh, 200 mesh and 325 mesh.