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3A Molecular Sieve

Molecular sieve 3A is a potassium-sodium aluminosilicate with a pore size of 3Å (0.3 nm) also called zeolite 3A or zeolith 3A, is one type of aluminosilicate crystal. Kinetic diameter smaller than 3 angstroms will be adsorbed, otherwise, be excluded. The chemical formula is K12[(AIO2)12(SIO2)]·XH2O. Silicon to aluminum ratio: SiO2/Al2O3≈2. CAS Number: 308080-99-1. Molecular Sieves 3A are typically used for agents drying or pulling out moisture from products. Such as ethanol dehydration, natural gas dehydration, cracked gas dehydration, and refrigerant dehydration.

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3A Molecular Sieve Technical Specifications

Property Unit Bead Pellet Note
Diameter mm 1.6-2.5 3.0-5.0 1/16’’ 1/8’’
Static Water Adsorption %wt ≥21.50 ≥21.50 ≥21.50 ≥21.50 RH75%, 25℃
Bulk Density g/ml ≥0.75 ≥0.75 ≥0.70 ≥0.70 Tapped
Loss on Ignition %wt ≤1.50 ≤1.50 ≤1.50 ≤1.50 550℃, 1hr
Loss on Attrition %wt ≤0.10 ≤0.10 ≤0.20 ≤0.20 ~
Crush Strength N ≥35.00 ≥100.00 ≥40.00 ≥90.00 Avg. 25 beads
Particle Ratio % ≥98.00 ≥98.00 ≥98.00 ≥98.00 ~

Major Applications

Ethanol Dehydration

The challenges faced in the waterfree ethanol production Molecular sieve ethanol dehydration, the lower its water content, the higher quality of alcohol is produced. However, using typical multi-pressure distillation processes alone, the ethanol to water azeotopic ratio is at 95.5%, with a maximum of 97.2%. Further purification is needed to exceed the limits for a more refined final product.

Insulated Glass

Molecular sieve for Insulated Glass Molecular sieve can deeply co-adsorb the resident moisture and organics in insulating glass, keeping the insulating glass clear and transparent even at very low temperatures. The molecular sieve 3A beads are very useful in drying the inner space of insulating glass due to their high water absorption rate and better physical properties, which helps to prot...

Natural Gas

Why we focus on Natural Gas Molecular sieves are crystalline compounds created from alumina silicates, with controlled and precise structures, which contain pores of uniform size. These compounds have an affinity for various molecules, especially for polar compounds such as water, hydrogen sulfide and carbon dioxide. Molecular sieves can therefore be used for removing water from sour gas, or t...

3A Molecular Sieve Storage & Regeneration

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