Origin

China

Activated alumina, there are many micro-paths, so the specific surface is large. It can be used as absorbent, desiccant and catalyst carrier. It is also a kinf of trace water desiccant and the pole-moleculae absorbent, according to the absorbed molecule polarization, the attachment force is strong for water, oxide, acetic acid, alkali ect.

Activated alumina defluorinates just as the anion exchange resin, but the selectivity is much strong. The defluorination effect of the activated alumina is good. The capacity is stable. It has high strength, low abrasion, no soften in water, no expansion, no powdery no crack. It can widely used in the deep drying of cracked gas, ethylene and propylene, hydrogen-generation, air seperation, instrument air drying and fluorine treatment for H₂O₂, alos in the absorbing pollution material, such as H₂S, SO₂, HF and paraffin in the waste gas, especially in the drinking water defluorination.

Molecular Formula:  

Al₂O₃. n H₂O (0

Physical Properties

		KA401	KA402	KA403	KA404	KA405
Appearance		White, Sphere, No Odor, Insoluble In Water, Innocuous
Crystal Type		x-p	x-p	y	y	x-p
Chemical Composition	Al2O3 %	≥93	≥93	≥93	≥93	≥90
	Na2O %	≤0.3	≤0.3	≤0.5	0.15-0.3	≤0.3
LOI	%	6-8	6-8	≤8	≤5	6-8
Bulk Density	g/ml	0.68-0.72	0.70-0.75	0.65-0.75	0.70-0.80	0.68-0.72
Surface Area	m2/g	≥280	≥280	200-260	≥200	≥300
Pore Volume	ml/g	0.30-0.45	0.30-0.42	0.40-0.46	0.40	0.30-0.50
Static Absorption (RH=60%)	%	Water Absorption 15-17	Fluorine Absorption 0.12	Water Absorption 50	Water Absorption 50-70	Water Absorption 17-19
Active	%			56-62
Attrition Loss	%	≤1.0	≤1.0	≤1.0	≤0.4	≤0.8
Crushing Strength (mm)	0.4-1.2		≥30
	1-2	≥40	≥40
	2-3	≥60	≥60
	3-5	≥100		≥100	≥100	≥100
	4-6	≥120		≥130	≥120	≥110

KA401: is for as adsorbent
KA402: is for defluorinating
KA403: is for absorption in producing hydrogen perixide (H₂O₂)
KA404: is for catalyst carrier
KA405: is for dehydrating and drying in air seperation etc