molecular sieve xh-11

molecular sieve xh-11 Also known as anhydrous alcohol, refers to the ethanol concentration is greater than 99% (mass). Mainly used as solvent for cosmetics, pharmaceutical and other industries. Supreme general of industrial ethanol concentration of 95%. To obtain anhydrous ethanol, may be further desiccant for insulated glass with the following three ways: (1) treated with lime industrial ethanol, make water into insoluble calcium hydroxide, ethanol, and then steamed out with sodium metal is dry, it is the old way. (2) the azeotropic distillation dehydration is a commonly used method in industry at present. Generally with benzene as azeotropic agent, steamed out of a boiling rectification tower over the course of the first, benzene, ethanol and water ternary azeotrope, again in the second azeotropic distillation steamed out binary azeotrope of benzene and ethanol, the steam out of the anhydrous ethanol in alcohol distillation. Because of the benzene in the product and about 0.5% (mass) of the residual, and benzene toxicity is bigger, has developed in recent years is pentane or hexane instead benzene as azeotropic agent. (3) with ion exchange agent or molecular sieve dehydration, then distillation.

Functions and features of

Porous materials has been widely used in many fields, such as microporous molecular sieve xh-11 as the main catalytic materials, adsorption materials and ion exchange separation materials, in oil processing, petrochemical industry, fine chemical industry and daily chemical industry plays a more and more important role.

desiccant for insulated glass (also called synthetic zeolite) is a kind of silicon aluminate microporous crystals. It is composed of silica and alumina tetrahedron basic skeleton structure, there is a metal cation in the lattice (such as Na +, K +, Ca2 +, Li +, etc.), to balance the extra negative charge in the crystal. Molecular sieve type according to its crystal structure is mainly divided into: type A, X, Y, etc.

Molecular sieve relevant standards:

The 3 a molecular sieve, the 4 a molecular sieve 5 a molecular sieve and its test method, the 13 x molecular sieve

Molecular sieve static water adsorption method, the measuring method of the molecular sieve adsorption dynamic water"

The determination of zeolite molecular sieve adsorption dynamic carbon dioxide, the granular molecular sieve size measurement method, the molecular sieve bulk density measurement method, the molecular sieve crush resistance test method, the abrasion resistance performance of the refrigeration system using molecular sieve desiccants test method"

Industrial activated alumina, the air separation equipment technical conditions of inspection and acceptance with activated alumina