Sodium Type A (4A) molecular sieves

Performance

I plant the production of 4A zeolite, sodium form of the Type A crystal structure, can absorb the critical diameter 4A molecular formula Na12 [AIO2] 12 (SiO2), 12] · XH2O.

Use

Static dewatering used in a sealed gas or liquid system, as a static desiccant in household refrigeration systems, pharmaceutical packaging, automotive air-conditioning, and electronic components, perishable chemicals, or as a dehydrating agent in the paint and plastic systems. To in the industry can be used for the drying of the saturated hydrocarbon materials, and can be adsorbed such as methanol, ethanol, hydrogen sulfide, carbon dioxide, can be used in the system, R-12 and R-22, where the molecules can be adsorbed on a type 3A molecular sieve can be 4A adsorption.

Technical Specifications

Technical Specifications		Strip		Spherical
Technical Specifications		Ø1.5-1.7mm	Ø3-3.3mm	Ø2.0-2.8mm	Ø2.8-4.75mm
Attrition rate %≤		0.2	0.2	0.15	0.15
Attrition rate g/ml		0.68	0.68	0.7	0.7
Granularity %				98	98
Static water adsorption %		20.5	20.5	21.5	21.5
Ethylene adsorption %		15.5	15.5	15.5	15.5
Compressive strength	Unit area crush strength	25	25	40	80
	N/Granule　N/mm2	25	25	40	80
	The coefficient of variation	0.3	0.3	0.3	0.3
Package moisture content %		1.5	1.5	1.5	1.5

HG/T2524-93 National Institute of Standards

Technical Specifications		Strip				Spherical
		Ø1.5-1.7mm		Ø3-3.3mm		Ø2.0-2.8mm		Ø2.8-4.75mm
		First grade	Qualified products	First grade	Qualified products	First grade	Qualified products	First grade	Qualified products
Attrition rate %≤		0.3	0.5	0.5	0.6	0.4	0.6	0.4	0.6
Attrition rate g/ml		0.66	0.6	0.66	0.6	0.66	0.6	0.66	0.6
Granularity %		95	90	95	90	88	85	88	85
Static water adsorption %		20.5	19.5	20.5	19.5	21	20	21	20
Ethylene adsorption %		15	14	15	14	15	14	15	14
Compressive strength	Unit area crush strength	25	20	18	15	30	25	70	50
	N/Granule　N/mm2	25	20	18	15	30	25	70	50
	The coefficient of variation	0.3	0.4	0.3	0.4	0.3	0.4	0.3	0.4
Package moisture content %		1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5

Regeneration conditions

I plant the production of 3A, 4A, 5A, 13X molecular sieve available heating and purge or evacuated, renewable reuse.

1. the removal of moisture: available drying gas, such as nitrogen, air, hydrogen, saturated carbonized hydrogen was heated to 150-320 ° C in 0.3-0.5kg/m2 under pressure introduced into the molecular sieve bed, continuing for 3-4 hours, and then tothe sorber pass into the dry cold gas for approximately 2-3 hours, isolated air-cooled to room temperature.

2. the removal of organic material: the available steam from the molecular sieve, the first adsorbate alternative out, then heated to 1, and the regeneration may also be in the 200-350 ℃ superheated vapor or inert gas through the regeneration, (can not be used with the adsorbate.contact produce an explosive mixture of gas).

3. Removal of gaseous substances available vacuum removal of regenerated.