5a molecular sieve


5A Molecular Sieve is a type of synthetic zeolite that is derived from natural aluminosilicate minerals through a controlled manufacturing process.

Manufacturing Process

  1. Synthesis of Zeolite 4A

    • Zeolite 4A is first synthesized from sodium aluminate and sodium silicate under controlled temperature and pH conditions.

  2. Ion Exchange Process

    • The sodium (Na⁺) ions in the zeolite 4A structure are replaced with calcium (Ca²⁺) ions, converting it into 5A molecular sieve.

  3. Drying & Activation

    • The material is dried at high temperatures to remove residual moisture.

  4. Shaping & Granulation

    • The molecular sieve is processed into pellets, beads, or powders depending on its final application.


molecular sieve (42).jpg

Name
Zeolite 5A
Other name
Molecular Sieve 5A
Cas No.
69912-79-4
MF
Ca₄.₅Na₃[(AlO₂)₁₂(SiO₂)₁₂]·mH₂O
Shape/Appearance
sphere ; pellets
Aperture
5Å
Color
Light brown
Product number
ZC528
ZC532-HP
SL535A
ZCPSA-O2
Sizes
Φ1.6～2.5(mm)
Φ2～3(mm)
Φ3～5(mm)
Φ1.6～2.5(mm)
8 × 12(mesh)
9 × 10(mesh)
4 × 8(mesh)
8 × 12(mesh)
Crushing Strength
≥30
≥30
≥70
≥30
Static H₂O adsorption capacity（75%RH，25℃）
≥ 23
≥ 23
≥ 23.5
≥ 26
Balanced CO₂ adsorption capacity(wt%, 250mmHg)
NA
≥15
NA
≥18
Bulk density
≥ 0.72
≥ 0.72
≥ 0.70
≥ 0.70
H₂O content (wt%)
≤1.5
≤1.5
≤1.5
≤1.5


5A Molecular Sieve – High-Efficiency Adsorbent

The 5A Molecular Sieve is a highly efficient synthetic zeolite with a pore size of 5 angstroms (5Å). It is designed for adsorption and separation processes, selectively removing molecules with a kinetic diameter of 5Å or smaller while excluding larger molecules. This makes it ideal for applications in gas purification, drying, and separation processes.

Key Features & Advantages:

  • Selective Adsorption
    Efficiently removes normal paraffins, water, CO₂, H₂S, and other small molecules while allowing larger molecules to pass through.

  • High Adsorption Capacity
    Superior ability to capture moisture, gases, and hydrocarbons, making it useful for dehydration and gas separation.

  • Excellent Mechanical Strength & Durability
    Withstands high pressure and temperature conditions without structural degradation.

  • Regenerable & Reusable
    Can be regenerated by thermal activation or pressure swing adsorption (PSA), ensuring long service life.

  • Stable Performance in Harsh Conditions
    Highly resistant to chemical attack and thermal stress, making it ideal for industrial applications.

Applications of 5A Molecular Sieve:

  • Petrochemical & Natural Gas Processing

    • Removal of H₂O, CO₂, and H₂S from natural gas.

    • Separation of normal and iso-paraffins in hydrocarbon refining.

  • Air Separation & Oxygen Generation

    • Used in pressure swing adsorption (PSA) systems for oxygen enrichment.

  • Liquid & Gas Drying

    • Dehydration of liquefied petroleum gas (LPG), compressed air, and solvents.

  • Hydrogen Purification

    • Removes water and CO₂ to produce high-purity hydrogen.


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