Research on Ion Exchange and Adsorption Performance of Zeolite Molecular Sieves

With the continuous expansion of industrial production scale, reducing production costs and developing energy - saving adsorption separation processes in industrial production are of great significance and economic benefits. The properties of adsorbents directly affect the performance of PSA units. Developing high - efficiency adsorbents is the key to the development of PSA air separation technology. Non - binder - type bulk Li - X and Li - LSX will further promote the development of PSA technology. In China, building energy consumption accounts for about one - quarter of the total energy consumption. Building energy conservation is related to many aspects. Practices at home and abroad have proved that improving the thermal insulation performance of building envelopes, especially the thermal insulation performance of windows, is an economic and effective way to prevent heat loss from buildings. The application of insulating glass in construction plays a crucial role. 3A molecular sieve is an important component of energy - saving building materials (insulating glass). That is to say, improving the water absorption performance of 3A molecular sieve will extend the service life of insulating glass. At the same time, 3A molecular sieve has a single function, only absorbing water and not other substances. It is also used to dry water - containing olefins and products in esterification reactions. This paper mainly studies the methods for preparing high - efficiency 3A and LiX molecular sieve adsorbents. Specifically, it investigates the effects of molding and calcination temperature, exchange solution concentration, number of exchanges, exchange time, activation temperature, etc. on the performance of adsorbents during the preparation process, and prepares high - efficiency molecular sieves.