Tuesday, September 20, 2011

Desiccant activated alumina

Activated alumina:
1)Large capacity of absorption
2)High strength and thermal stability




Product introduction
Activated alumina;
Chinese name. [English] active Alumina Alumina controller name, Reactive alumina, Um alumin controller (I) oxide catalyst in the noun "used in explanation of alumina usually only called" the activated alumina ", it is a kind of porous, high dispersion of solid material, a large surface area, its pore surface has required the catalytic properties, such as adsorption, surface activity, high thermal stability, etc, so widely used for chemical reaction and catalyst carriers.

Desiccant
Use as a desiccant, it works by a process called adsorption. The water in the air actually sticks to the alumina itself in between the tiny passages, as the air passes through them. The water molecules become trapped so that the air is dried out as it passes through the filter. This process is reversible, and if the alumina desiccant is heated to about 200°C it will release all of the water stored in it. This process is called regenerating the desiccant. Air always has some water in it; one way to measure the amount of water in the air is the air's dew point.

Product technical specifications
Index name
Al
2
o
3

%
Sio
2
%
Fe
2
o3
%
Na20
%
Burning reduction
%
Apparent density
g/ml
Specific surface area
M
2
/g
Hole volume
Ml/g
Crush strength
N/particle
Technical


requirements
≥92

0.10

0.04

0.45
≤8
≤0.75
≥260
≥0.40
≥20
1-2mm
≥92

0.10

0.04

0.45
≤8
≤0.75
≥260
≥0.40
≥40
2-3mm
≥92

0.10

0.04

0.45
≤8
≤0.75
≥260
≥0.40
≥80
3-5mm
≥92

0.10

0.04

0.45
≤8
≤0.75
≥260
≥0.40
≥100
4-6mm
≥92

0.10

0.04

0.45
≤8
≤0.75
≥260
≥0.40
≥140
5-8mm

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