Which molecular sieve of 3A and 4A has the smallest pore size?
When purchasing molecular sieves, you do not specifically say which molecular sieve is better, only which molecular sieve is more suitable. The main function of molecular sieve is to sieve a substance molecule through the pore size of the molecular sieve's own crystal structure. When meeting the technical requirements of water removal, is it better to use 3A molecular sieve or 4A molecular sieve?
First of all, this problem still needs to be specifically distinguished from the substance to be dehydrated. First, the size of the molecular diameter of the moisture (dry) needs to be removed. If the dynamic molecular diameter of the substance to be dehydrated (dry) is greater than 3nm and less than 4nm, then, If we want to get rid of water from this substance, we can only use 3A molecular sieve, because if we use 4A molecular sieve, it will not only absorb the water in the substance, but also absorb the substance that needs to be dehydrated. This is the first case, and there is another The situation is that if the dynamic diameter of the material that needs to be dehydrated (dried) is greater than 4A, then 4A molecular sieves are generally used, because 4A molecular sieves have a stronger ability to absorb moisture than 3A.
If both 3A molecular sieve and 4A molecular sieve can be used to remove water, which molecular sieve should we use? In this case, we generally use 4A molecular sieve, because the water absorption of 4A molecular sieve is more than 22%, and the water absorption capacity of 3A is more than 21%. Generally speaking, the water absorption capacity of 4A molecular sieve is stronger than that of 3A molecular sieve. That is, the price of 4A molecular sieve is cheaper than that of 3A molecular sieve.
First of all, this problem still needs to be specifically distinguished from the substance to be dehydrated. First, the size of the molecular diameter of the moisture (dry) needs to be removed. If the dynamic molecular diameter of the substance to be dehydrated (dry) is greater than 3nm and less than 4nm, then, If we want to get rid of water from this substance, we can only use 3A molecular sieve, because if we use 4A molecular sieve, it will not only absorb the water in the substance, but also absorb the substance that needs to be dehydrated. This is the first case, and there is another The situation is that if the dynamic diameter of the material that needs to be dehydrated (dried) is greater than 4A, then 4A molecular sieves are generally used, because 4A molecular sieves have a stronger ability to absorb moisture than 3A.
If both 3A molecular sieve and 4A molecular sieve can be used to remove water, which molecular sieve should we use? In this case, we generally use 4A molecular sieve, because the water absorption of 4A molecular sieve is more than 22%, and the water absorption capacity of 3A is more than 21%. Generally speaking, the water absorption capacity of 4A molecular sieve is stronger than that of 3A molecular sieve. That is, the price of 4A molecular sieve is cheaper than that of 3A molecular sieve.