The high purity and high strength make them extremely high temperature resistance, is used to avoid the leaching reaction tower of silica cover downstream equipment or dirt or poisoned catalyst carrier. This makes them all ideal choice for support of all types of catalyst.
It has a high temperature and high pressure resistance, bibulous rate is low, the characteristics of the chemical performance is inert and stable. Can withstand the erosion of acid (except HF acid),most of the alkali and other organic solvents, and can endure in the production process of temperature changes.
It’s widely used in petroleum, chemical, fertilizer, gas and power energy, and environmental protection industries, as a catalyst support media in the reactor to cover support material and tower packing.
Chemical composition
Al2O3 |
Fe2O3 |
MgO |
SiO2 |
Na2O |
TiO2 |
>99% |
<0.1% |
<0.5% |
<0.2% |
<0.05% |
<0.1% |
Physical properties
Item |
Value |
Water absorption (%) |
<4 |
Packing density (kg/m3) |
1800-2200 |
Specific gravity (g/cm3) |
>3.6 |
Operation temp.(℃) |
1650 |
Apparent porosity (%) |
<1 |
Moh’s hardness (scale) |
≥9 |
Acid resistance (%) |
>99.6 |
Alkali resistance (%) |
≥85 |
Standard Specification:
Diameter (mm) |
Crush strength (kN/particle) |
Crush strength (kg/particle) |
Diameter range (mm) |
Bulk density (kg/M3) |
3(1/8’’) |
≥0.40 |
≥40 |
3±1.0 |
1800-2200 |
6 (1/4’’) |
≥0.8 |
≥80 |
6±1.0 |
1800-2200 |
8 (5/16’’) |
≥1.2 |
≥120 |
8±1.0 |
1800-2200 |
10 (3/8’’) |
≥1.9 |
≥190 |
10±1.5 |
1800-2200 |
13 (1/2’’) |
≥5.8 |
≥580 |
13±1.5 |
1800-2200 |
16(5/8”) |
≥7.0 |
≥700 |
16±1.5 |
1800-2200 |
20 (3/4’’) |
≥9.0 |
≥900 |
19±2.0 |
1800-2200 |
25 (1’’) |
≥12.0 |
≥1200 |
25±2.0 |
1800-2200 |
30(1-1/4”) |
≥14.0 |
≥1400 |
30±2.0 |
1800-2200 |
38(1-1/2”) |
≥18.0 |
≥1800 |
38±2.0 |
1800-2200 |
50(2’’) |
≥21.5 |
≥2150 |
50±3.0 |
1800-2200 |
76(3’’) |
≥25.0 |
≥2500 |
76±3.0 |
1800-2200 |
Size and Tolerance (mm) |
||||
Size |
3/6/9 |
9/13 |
19/25/38 |
50 |
Tolerance |
±1.0 |
±1.5 |
±2 |
±3.0 |
The high purity and high strength make them extremely high temperature resistance, is used to avoid the leaching reaction tower of silica cover downstream equipment or dirt or poisoned catalyst carrier. This makes them all ideal choice for support of all types of catalyst.
It has a high temperature and high pressure resistance, bibulous rate is low, the characteristics of the chemical performance is inert and stable. Can withstand the erosion of acid (except HF acid),most of the alkali and other organic solvents, and can endure in the production process of temperature changes.
It’s widely used in petroleum, chemical, fertilizer, gas and power energy, and environmental protection industries, as a catalyst support media in the reactor to cover support material and tower packing.
Chemical composition
Al2O3 |
Fe2O3 |
MgO |
SiO2 |
Na2O |
TiO2 |
>99% |
<0.1% |
<0.5% |
<0.2% |
<0.05% |
<0.1% |
Physical properties
Item |
Value |
Water absorption (%) |
<4 |
Packing density (kg/m3) |
1800-2200 |
Specific gravity (g/cm3) |
>3.6 |
Operation temp.(℃) |
1650 |
Apparent porosity (%) |
<1 |
Moh’s hardness (scale) |
≥9 |
Acid resistance (%) |
>99.6 |
Alkali resistance (%) |
≥85 |
Standard Specification:
Diameter (mm) |
Crush strength (kN/particle) |
Crush strength (kg/particle) |
Diameter range (mm) |
Bulk density (kg/M3) |
3(1/8’’) |
≥0.40 |
≥40 |
3±1.0 |
1800-2200 |
6 (1/4’’) |
≥0.8 |
≥80 |
6±1.0 |
1800-2200 |
8 (5/16’’) |
≥1.2 |
≥120 |
8±1.0 |
1800-2200 |
10 (3/8’’) |
≥1.9 |
≥190 |
10±1.5 |
1800-2200 |
13 (1/2’’) |
≥5.8 |
≥580 |
13±1.5 |
1800-2200 |
16(5/8”) |
≥7.0 |
≥700 |
16±1.5 |
1800-2200 |
20 (3/4’’) |
≥9.0 |
≥900 |
19±2.0 |
1800-2200 |
25 (1’’) |
≥12.0 |
≥1200 |
25±2.0 |
1800-2200 |
30(1-1/4”) |
≥14.0 |
≥1400 |
30±2.0 |
1800-2200 |
38(1-1/2”) |
≥18.0 |
≥1800 |
38±2.0 |
1800-2200 |
50(2’’) |
≥21.5 |
≥2150 |
50±3.0 |
1800-2200 |
76(3’’) |
≥25.0 |
≥2500 |
76±3.0 |
1800-2200 |
Size and Tolerance (mm) |
||||
Size |
3/6/9 |
9/13 |
19/25/38 |
50 |
Tolerance |
±1.0 |
±1.5 |
±2 |
±3.0 |