Wide pore silica gel is largely used as the catalyst carrier；for purification &separation in process of pharmaceuticals production；for the adsorption of macromolecule protein in process of industrial ferment；for removal of the organic acid and high polymer from the insulating oil；for dehydration of industrial gas and adsorption of harmful multivalence elements；it can also be used for damp-proof and rust-proof purposes and used as the padding for household pets. Among these products, the wide pore granular silica gel is also a kind of basic raw material for further process of fine chemical silica gel products.   wide pore silica gel is classified as granular particle, spherical particle and micro particle and its structure characteristics as follows：specific surface area：300--400㎡/g，
pore diameter：80--100Å，
pore volume：0.75-1.0ml/g。