99.3% pure alumina balls for supporting or covering

ISO9001:2008
Over 18 years professional manufacture for alumina ball.
Chemical composition
Typical Technical Composition
Min. %
Max. %
Usual %
SiO2
******
0.20
0.18
Al2O3
99.00
99.60
99.30
Fe2O3
******
0.20
0.02
TiO2
******
0.55
0.02
CaO
******
0.10
0.20
MgO
******
0.10
0.05
Na2O
******
0.25
0.10
K2O
******
0.20
0.13
Physical properties
Index
Value
Value
Leachable Iron
≤ 0.01%

Apparent Porosity by Weight
≤ 7.0%

Moh's Hardness Scale
>8.0

Water Absorption
<4.0wt.%

Acid Resistance
>99.8%

Thermal Conductivity
0.7-0.8 w/m 2 .k

Thermal Expansion @ 500°C
0.10%

Thermal Shock Stability, 1000°C then water cooling
10 times

Max. Operating Temperature
1550 °C
2822 °F
Specific Density
3,400 kg /m 3
212 lb /ft 3
Bulk Density (Packing Density)
2,100 g /cm 3
131 lb /ft 3

Crush Strength
Size /
Crush Strength
Nominal Size
(lbs)
(kg)
(N/pc)
mm
inch
min.
min.
min.
3
1/8
115
52
510
6
1/4
230
105
1030
10
3/8
440
200
1961
13
1/2
1355
615
6031
16
5/8
1720
780
7650
19
3/4
2315
1050
10297
25
1
3130
1420
13925
38
1-1/2
4034
1830
17946
50
2
4960
2250
22065

Product Properties
1. Low silica content;2. High purity and strength;3. Avoid the problems of leached silica coating downstream equipment or fouling or poisoning the catalyst bed.

Applications:
1.Ammonia production:high temperature resistance up to 1250 degree and high strength resistance up to 3500KPA;
2.Methanol and hydrogen production;
3.Alkylation process using hydrogen fluoride;
4.Naphtha reforming;5.Isomerization