What Is A Molecular Sieve

With the deepening of research on the synthesis and application of molecular sieves, researchers have found phosphoaluminate molecular sieves, and the skeleton elements of molecular sieves (silicon or aluminum or phosphorus) can also be replaced by B, Ga, Fe, Cr, Ge, Ti, V, Mn, Co, Zn, Be and Cu, and the size of its pores and cavities can also reach more than 2 nm. Therefore, molecular sieves can be divided into silicoaluminium molecular sieves, phosphorus aluminum molecular sieves and skeleton heteroatom molecular sieves according to the composition of skeleton elements; According to the pore size, molecular sieves with pore sizes less than 2 nm, 2-50 nm, and greater than 50 nm are called microporous, mesoporous, and macroporous molecular sieves, respectively.
With the continuous development of the chemical industry, molecular sieves in the chemical industry have received a lot of attention, and more and more enterprises are using molecular sieves. The molecular sieve industry has been favored by many people, with some professional companies standing out.
Because there are metal ions with low electricity price and large Ionic radius and water in the combined state, water molecules are continuously lost after heating, but the crystal skeleton structure remains unchanged, forming many cavities with the same size. The cavities are connected by many micropores with the same diameter. These tiny holes have uniform diameters, which can absorb molecules smaller than the diameter of the channel into the interior of the hole, while excluding molecules larger than the channel, Therefore, molecules with different shapes and diameters, different degrees of polarity, different boiling points, and different degrees of saturation can be separated, which has the function of "screening" molecules, hence it is called molecular sieve. Molecular sieves are widely used in industries such as metallurgy, chemical engineering, electronics, petrochemicals, and natural gas.