molecular sieve 4a

We cubic lattice microporous aluminosilicate, according to the size of its intracrystalline pore molecular adsorption or exclusion of different substances, which is known as a molecular sieve, and for the effective pore size molecular sieve is 0.4nm, and the spatial network structure the silicon-oxygen tetrahedral units [SiO4] and aluminum-oxygen tetrahedron [AlO4] unit called staggered arrangement of the 4A zeolite molecular sieve before use to prevent the absorbed water, an organic gas or liquid, otherwise, should be regeneration of molecular sieves.