Introduction: Inert Alumina Ceramic Ball is widely used in petrochemical industry, chemical industry, fertilizer industry, natural gas industry and environment protection, etc. Which function mainly as the covering and supporting materials for catalyst in reactors and packing for towers. Its principal role is to accelerate the distribution of gas or liquid, and support or protect the active catalyst, which especially has the relevantly lower mechanical strength. Chemical Characteristics For Inert Alumina Ceramic BallIn accordance with the different content of AL2O3,it can be divided into as follows:
Product name
Item
Low Alumina Ball
Middle Alumina Ball
High Alumina Ball
Al2O3
17-35%
60-75%
80-95%
Al2O3 +SiO2(%)
≥92%
≥95%
Fe2O3(%)
＜1%
＜0.5%
CaO (%)
＜1.5%
＜2.1%
＜2.9%
MgO (%)
＜2.5%
＜1.3%
K2O+Na2O(%)
＜4.0%
TiO2 (%)
＜0.1%
Water absorption
＜3%
Acid resistance
＞98%
Alkali resistance
＞80%
＞85%
＞90%
Operation Temperature (°C)
＞980
＞1180
＞1580
Spalling Resistance(°C)
＞300
＞500
＞700
Gravity(g/cm3)
2.3-2.4
2.6
3.5
Mohs hardness Max
6.5
7.0
CompressiveStrengthKN/Pellet
Ø6
＞0.4
＞0.5
＞0.6
Ø13
＞1.2
＞1.6
＞1.7
Ø20
＞1.8
＞2.0
＞2.3
Ø25
＞2.5
＞2.9
＞3.2
Ø38
＞4.0
＞4.5
＞5.0
Ø50
＞8.0
＞8.5
＞11
Dia(Φ)
3
6
8
10
13
16
20
25
30
38
50
65
75
Allowable deviation
±1.0
±1.5
±2.0
±3.0