Nitrogen molecular sieve is a kind of adsorbent used for the preparation of high purity nitrogen, which is characterized by high adsorption capacity, high selectivity and high stability. 

It is widely used in industry, medical treatment, scientific research and other fields, providing people with efficient and environmentally friendly nitrogen preparation method.

1.The main components of molecular sieve for nitrogen preparation are silicate and aluminate, which have unique microporous structure and good physicochemical properties. These micropores can effectively adsorb nitrogen molecules and convert them into high-purity nitrogen through chemical reaction. At the same time, the nitrogen molecular sieve also has excellent temperature resistance and mechanical strength, and can work stably under high temperature and high pressure.

2. The preparation methods of nitrogen molecular sieves include various methods, such as hydrothermal synthesis method, sol-gel method, template method, etc. Among them, hydrothermal synthesis method is the most popular method. Among them, the hydrothermal synthesis method is one of the most commonly used preparation methods. This method takes silicate and aluminate as raw materials and generates molecular sieves with microporous structure by reacting with aqueous solution at high temperature and pressure. The sol-gel method involves dissolving silicates and aluminates in a solvent to form a sol, which is then gelated to produce molecular sieves. The template method utilizes a specific template agent to generate molecular sieves in the pores of the template agent through chemical reaction.

3. Molecular sieves for nitrogen production have a wide range of applications. In the industrial field, it can be used to prepare high-purity nitrogen for use in electronics, semiconductors, aerospace and other high-tech fields. In the medical field, it can be used to prepare nitrogen for medical use, such as nitrogen for respiratory use and nitrogen for medical surgery. In the field of scientific research, it can be used for laboratory gas analysis, scientific research and so on.

4. In addition, molecular sieve for nitrogen production also has the advantages of environmental protection and energy saving. Compared with the traditional liquid nitrogen, the nitrogen prepared by nitrogen molecular sieve has higher purity, lower cost and less environmental pollution. Meanwhile, due to its excellent temperature resistance and mechanical strength, it can greatly reduce energy consumption and equipment maintenance costs.