Molecular sieve

Molecular Sieve High Voltage (typically 0.3~2.0 Nm) system of pores and cavities, which has the characteristics of screening molecules.However with molecular screen synthesis and application research of in-depth, researchers found has p aluminum acid salts molecular sieve dehydration process screen, and molecular screen of skeleton elements (Silicon or aluminum or p) also can by b, and Ga, and Fe, and Cr, and Ge, and Ti, and v, and Mn, and Co, and Zn, and Be and Cu, replaced, its channel and empty cavity of size also can reached 2 nm above, so molecular screen by skeleton elements composition can is divided into Silicon aluminum class molecular screen, and p aluminum class molecular screen and skeleton miscellaneous Atomic molecular screen;Divided by the pore size, pore size less than 2 NM, 2~50 nm and greater than 50 nm of molecular sieves are called micro-porous, mesoporous molecular sieves.Due to its large aperture, become good carriers for large molecular reactions, but wall thickness of mesoporous material is amorphous, its thermal stability and thermal stability are not meet the demanding conditions required petrochemical applications.

Molecular sieve

Molecular Sieve High Voltage is a kind of cubic lattice Silicon aluminate compounds, mainly composed of silica-alumina by oxygen bridges to connect empty skeletal structure, there are many uniform pore size in the structure of pores and neat, and a large internal surface area of the cavity.Also contains the price lower and larger Ionic radius of metal ions and combined state of the water.Due to water molecular in heating Hou continuous to lost, but Crystal skeleton structure not variable, formed has many size same of empty cavity, empty cavity and has many diameter same of micro-hole connected, these tiny of cavities diameter size uniform,activating molecular sieves can put than channel diameter small of molecular adsorption to cavities of internal in the to, and put than channel big have molecular exclusion out, thus can put shape diameter size different of molecular, polar degree different of molecular, boiling point different of molecular, saturated degree different of molecular separation from, that has "screening" molecular of role, Known as molecular sieves.Current molecular sieve in chemical, electronics, petrochemicals, natural gas is widely used in the industry.