Molecular sieve for insulating glass

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Post Date: Jun 28, 2007
Validity Date: Jun 25, 2019
Category: Chemicals » Desiccant & Sorbent

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Description

3A molecular sieve

Chemical Formula:2/3K2O·1/3Na2O·Al2O3·2SiO2·9/2H2O
Si/Al ratio:SiO2/Al2O3≈2
Pore diameter:About 3A
Use：Used as desiccant in petrochemical, pharmaceutical and other industries
Technical parameter ：

Parameter	Unit	Bead		Pellet
Diameter	Mesh	8×12	4×8	1/16″	1/8″
Water adsorption capacity	≥％wt	20	20	20	20
Ethylene adsorption capacity	≤mg/g	3.0	3.0	3.0	3.0
Bulk density	≥g/ml	0.68	0.68	0.64	0.64
Strength	≥N	30	75	35	70
Abrasion	≤％wt	0.1	0.1	0.2	0.2
Water content	≤％wt	1.5	1.5	1.5	1.5

Reactivation:

1. Removal of water: Hot gas at 200-350℃ and pressure 0.3-0.5㎏/㎝2 flows through the molecular sieve bed for 3-4 h. let temperature decreases down to 110-180℃, cooling.
2. Removal of organics: Regeneration is achieved by means of steam treatment to remove organics, and then remove water with method 1.

Conservation:

Room temperature, humidity﹤90%,non-expose to air; non-contact with air, acid and alkali.

Packing:

25kg (10 gallon) steel pail 150kg (55 gallon) steel pail.

4A molecular sieve

Chemical Formula:Na2O·Al2O3·2SiO2·9/2H2O
Si/Al ratio:SiO2/Al2O3≈2
Pore diameter:About 4A
Use：Desiccant for gas and other material; adsorbent for Ar purification for the separation of methane, ethane and propane.
技术指标：

Parameter	Unit	Bead		Pellet
Diameter	Mesh	8×12	4×8	1/16″	1/8″
Water adsorption capacity	≥％wt	21	21	21	21
Methanol adsorption capacity	≤mg/g	140	140	140	140
Bulk density	≥g/ml	0.66	0.66	0.64	0.64
Strength	≥N	40	90	40	85
Abrasion	≤％wt	0.1	0.1	0.2	0.2
Water content	≤％wt	1.5	1.5	1.5	1.5