Activation Method of 4A Molecular Sieve

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4A molecular sieve has a wide range of applications. It is not only a new type of high-performance microporous adsorbent, but also a catalyst carrier with excellent performance. As a desiccant, molecular sieve has strong drying efficiency and can be used to dry a variety of gases and liquids. Molecular sieves cannot be used to dry unsaturated compounds because they have a strong adsorption effect on unsaturated molecules, polar molecules and easily polarized molecules. Molecular sieve has a small water absorption capacity. If the material to be dried contains too much water, it should be dehydrated with other desiccants first, and then dried with molecular sieve.

4A and 5A molecular sieves are currently widely used molecular sieves in various major industries. 4A molecular sieve is a kind of sodium aluminosilicate. The apparent diameter of its micropores is 420pm, which can adsorb molecules with a diameter of less than 400pm. The 5A molecular sieve is sodium calcium aluminosilicate with a micropore diameter of 500 pm, which can absorb molecules below 500 pm, and the diameter of water molecules is about 300 pm. So what is the activation method of 4A molecular sieve?