Sodium-based oxygen production molecular sieve and production process thereof

Abstract

The invention relates to the technical field of molecular sieves, and particularly discloses a sodium-based oxygen production molecular sieve and a production process thereof. The oxygen production molecular sieve comprises the following raw materials: molecular sieve raw powder, clay, solid amine and a silane coupling agent. The production process of the oxygen production molecular sieve comprises the following steps: firstly, mixing and stirring molecular sieve raw powder and clay, then adding solid amine and a silane coupling agent, and continuously stirring to prepare a mixed material; granulating and forming the mixed material to obtain spherical particles; polishing the spherical particles by using a polishing device to obtain a crude product; and finally, dehumidifying and activating the crude product in sequence to prepare the finished molecular sieve. The molecular sieve prepared by the invention has a good barrier effect on water molecules in air, so that the molecular sieve can keep relatively high activity; meanwhile, the molecular sieve has good carbon dioxide adsorption performance, so that the purity of oxygen prepared from the molecular sieve is relatively high. Meanwhile, the surface of the molecular sieve is smooth, so that the oxygen production effect of the molecular sieve is better.

Description

technical field [0001] The application relates to the technical field of molecular sieves, more specifically, it relates to a sodium-based oxygen-producing molecular sieve and its production process. Background technique [0002] Molecular sieve is an aluminosilicate compound with a cubic lattice, and molecular sieve has a uniform microporous structure, which can adsorb molecules smaller than its diameter into the interior of the cavity, and has a preference for polar molecules and unsaturated molecules. Adsorption capacity, so it can separate molecules with different polarity, saturation, molecular size and boiling point, that is, it has the function of "sieving" molecules, so it is called molecular sieve. [0003] Due to the unique adsorption capacity of molecular sieves, molecular sieves have a good application in the field of oxygen production. That is, oxygen is prepared from air. Since the air is rich in nitrogen and oxygen, and the quadrupole moment of nitrogen is st...

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Problems solved by technology

However, the molecular sieve prepared by this method is easy to absorb water molecules in the air in the pore structure during use, which not only easily affects the purity of the obtained oxygen, but also easily leads to the inactivation of the molecular sieve; If the surface is not smooth enough, it is easy to make the oxygen production effect of the molecular sieve poor

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