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Freesia Chemicals

Mulund West, Mumbai, Maharashtra

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Inorganic Chemicals

Leading Manufacturer of Molecular Sieve Type 3A, Molecular Sieve 5A, Molecular Sieve 4A and Molecular Sieve 13X from Mumbai.

Molecular Sieve Type 3A
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Molecular Sieve Type 3A

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3A Molecular Sieve is a potassium form of aluminosilicate. The Molecular Sieve will adsorb molecules which have a critical diameter less than three angstrom (He , H2 & CO)

 

Molecular Sieve 3A is cation exchanged potassium form of A type crystal structure. The potassium ion being larger than sodium ion, is effectively exchanged in basic 4A type Molecular Sieve to reduce the pore size to 3 angstrom, and it enables selective adsorption depending upon molecular size.

 

Molecular Sieve 3A is used for dehydration of hydrocarbon streams in liquid phase or vapour phase due to high drying efficiency, and minimizes the interface of hydrocarbon co-adsorption. Our Molecular Sieve, being spherical in shape produces uniform packing and adsorbate diffusion in the adsorber, also exhibits high resistance to attrition and physical damage during service .

 

Typical Technical Data

ParameterValues
ShapeSpherical Beads
Size0.5 – 2 ,1 – 3 , 2 – 4 & 3 – 5 mm
Bulk Density760 kgs/m3
Attrition Loss0.20 % wt.
Equilibrium H2O Adsorption Capacity24.0 % wt

 

Tailor-made grades in different sizes are available.
Molecular Sieve type 3A is also available in powder form.


Typical Applications:

  • Drying of olefines ( Cracked gas drying)
  • Liquids for alkylation reaction
  • Acetylene
  • Ethylene
  • Propylene
  • Ethanol
  • Menthol
  • Carbon dioxide
  • Insulating Glass

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Molecular Sieve 5A
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Molecular Sieve 5A

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5A Molecular Sieve is calcium form of aluminosilicate. The Molecular Sieve will adsorb molecules which have a critical diameter less than five angstroms (CH3OH , C2H5OH & Propane)

Molecular Sieve 5A is cation exchanged calcium form of A type crystal structure. The calcium ion exchange in “A” crystal effectively increases the Molecular Sieve pore size to 5 angstroms, and it enables selective adsorption depending upon molecular size of adsorbate.

Molecular Sieve 5A adsorbs n-paraffin irrespective of chain length and not the branched chain hydrocarbon. Hence it is used for specific applications like, separation of normal from branched chain paraffin. Our Molecular Sieve being spherical in shape produces uniform packing and adsorbate diffusion in the adsorber, also exibits high resistance to attrition and physical damage during service.

 

Typical Technical Data

ParameterValues
ShapeSpherical Beads
Size1 – 3 , 2 – 4 & 3 – 5 mm
Bulk Density760 kgs/m3
Equilibrium H2O Adsorption Capacity24.0 % wt.
Attrition Loss0.20 % wt

 

Tailor-made grades in different sizes are available. Molecular Sieve type 5A is also available in powder form. This is done to suite the different needs as per the plant and equipment the company has.

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Molecular Sieve 4A
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Molecular Sieve 4A

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4A Molecular Sieve is sodium form of aluminosilicate. The adsorption of different molecules by 4A depends upon the major factors like molecular diameter and polarity of adsorbate and effective pore diameter of 4A. The Molecular Sieve will adsorb molecules which have a critical diameter less than four angstrom (CO2,H2O & NH3)


Typical Technical Data

ParameterValues
ShapeSpherical
Size0.5 - 2 , 1 - 3 , 2 - 4 & 3 - 5 mm.
Bulk Density750 kg /m3
Equilibrium H2O Adsorption Capacity25.0 % wt
Attrition Loss0.20 % wt

 

Tailor-made grades in different sizes are available.
Molecular Seive type 4A is also available in powder form.

 

Typical Applications

  • Hydrogen Rich Gas Drying
  • Reformer Recycle Gas Drying
  • Inert Gas Ammonia Removal
  • Low Pressure Air Drying
  • Natural Gas Drying
  • Natural Gas H2S Removal
  • Natural Gas CO2 Removal
  • LNG Plant Feed Pretreatment
  • PU Systems
  • Insulated Glass

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Molecular Sieve 13X
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Molecular Sieve 13X

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Molecular Sieve type 10 Angstrom (13X) has a X type structure and is formed by arranging sold alight cases into tetrahedral stacking and bridging with the six member oxygen atom-ring. The oxygen ring provides a cavity opening of the diameter 7.4 Angstrom. But this structure adsorbs molecules upto 10 Angstroms, hence the effective diameter is specified as 10 Angstrom .

 

Molecular Sieve can be represented by general formula: M2 / nO [(AI2O3).(SiO2)X]y H2O. Where, M represents Alkali metals with valency.

The water of hydration which fills the cavities during crystallisation is removed by heating, with remaining cavities forming the active interior surface.

We supply, Molecular Sieve in spherical form. The manufacturing process of molecular sieve is precisely controlled to exhibit an efficient micropore structure and minimum attrition loss to enable the rapid diffusion of absorbate in the core of beads and for better self life.

 

Typical Technical Data

Parameter Values
ShapeSpherical Beads
Size1- 3 , 2 – 4 & 3-5 mm dia.
Bulk Density0.59 – 0.69 kgs/m3
Equilibrium H2O AdsorptionCapacity26.0 % wt
Attrition Loss0.20 % max

 

Tailor-made grades in different sizes are available.
Molecular Sieve type 13X is also available in powder form.

 

Typical Applications:

  • Sweetening Natural Gas
  • LPG sweetening and drying
  • Air purification for air separation plants
  • CO2 adsorption and removal of H2O
  • Removal of Mercaptance
  • Other Sulphur compounds from liquid and gas streams.

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