Product Introduction

The 4A Molecular Sieve is a specialized product with a pore size of approximately 4A. It is an alkali metal silicate-aluminate widely used for the drying of gases and liquids.

Chemical Formula: Na2O·Al2O3·2SiO2·9/2H2O

Silicon-to-Aluminum Ratio: SiO2/Al2O3≈2

Applications

• Deep drying of gases and liquids such as air, natural gas, alkanes, and refrigerants.
• Static drying for pharmaceutical packaging, electronic components, and easily perishable materials; also used in automotive brake balls.

Regeneration:

1. Water Removal: Dry gas at 200~350°C with a pressure of 0.3~0.5 kg/cm² is passed through the molecular sieve bed for 3~4 hours until the outlet temperature reaches 150~180°C, then cooled.
2. Organic Compound Removal: Replace organic compounds with water vapor followed by removal of water.

Packaging

Woven bag/Kraft paper bag/Carton/Iron drum

Storage

Before use, avoid adsorbing water and organic substances; if adsorption occurs, regeneration is necessary.

Technical Data

Note

       The above is typical data. We can also produce per customers' request.