Silica gel is a mixture of water and silica (a mineral commonly found in sand, quartz, granite, and other minerals) that forms tiny particles when mixed. Silica gel is a desiccant whose surface retains water vapor rather than completely absorbing it. Each silicone bead h...
MINERAL ADSORBENTS, FILTER AGENTS, AND DRYING AGENTS
Molecular sieves are crystalline metal aluminosilicates having a threedimensional interconnecting network of silica and alumina tetrahedra. Natural water of hydration is removed from this network by heating to produce uniform cavities which se...
molecular sieve is a porous material that has very small, uniform-sized holes. It works like a kitchen sieve, except on a molecular scale, separating gas mixtures that contain multi-sized molecules. Only molecules smaller than the pores can pass through; whereas, larger molecules are blocked. If ...
PSR sulfur recovery catalyst is mainly used for klaus sulfur recovery unit, furnace gas purification system, urban gas purification system, synthetic ammonia plant, barium strontium salt industry, and sulfur recovery unit in methanol plant. Under the action of catalyst, Klaus reaction is conducte...
The molecular sieve structure is divided into three levels:
Primary structure: (silicon, aluminum tetrahedra)
he following rules are observed when the silicon-oxygen tetrahedra are connected:
(A)Each oxygen atom in the tetrahedron is shared
(B) Only one oxygen atoms can be shared between two...
In the industrial field, nitrogen generator is widely used in petrochemical, natural gas liquefaction, metallurgy, food, pharmaceutical and electronics industry. The nitrogen products of nitrogen generator can be used as instrument gas, but also as industrial raw materials and refrigerant, which ...
A molecular sieve is a solid adsorbent that can separate molecules of different sizes. It is SiO2, Al203 as a crystalline aluminum silicate with the main component. There are many holes of a certain size in its crystal, and there are many holes of the same diameter between them. It can adsorb mol...
There are two kinds of raw materials for activated alumina production, one is “fast powder” produced by trialumina or Bayer stone, and the other is produced by aluminate or aluminum salt or both at the same time.
X,ρ-alumina and the production of X,ρ-alumina
X, ρ-alumina is the main r...