Inert Ceramic Ball
Classification:
Keyword:
- Product Description
-
Inert ceramic balls, also known as inert alumina ceramic balls or solid ceramic balls, are spherical inert fillers made from high-quality alumina (Al₂O₃) as the main raw material and fired at high temperatures. Their core characteristic is "inertness", meaning they remain stable in the vast majority of chemical environments and do not participate in reactions.
Features：
• Chemical inertness: Resistant to acids, alkalis, and solvent corrosion, it remains stable in various harsh chemical environments.
• Good thermal stability: With an extremely low coefficient of thermal expansion, it can withstand drastic temperature changes without cracking.
• High strength and hardness: It has high mechanical strength, capable of withstanding the immense pressure of the bed layer and the impact of materials, with a low wear rate and a long service life.
• Low porosity: It does not have catalytic activity itself, mainly serving to cover, support, and protect.
• Regular geometric shape: The spherical structure ensures uniform bed layer porosity and fluid distribution, effectively reducing system pressure drop.
Application:
1. Petrochemical industry (core field):
Refining: Catalyst support and protection for devices such as hydrogenation, catalytic reforming, and desulfurization.
Petrochemical: Used in ethylene, PTA, synthetic ammonia and other production facilities to protect catalysts and improve fluid distribution.
Coal chemical industry: Used in processes such as MTO and coal-to-oil conversion, to protect molecular sieve catalysts.
2. Environmental Protection and Gas Purification:
Waste gas treatment: As a catalyst support material in VOCs control and flue gas desulfurization and denitrification towers.
Gas purification: As the support and covering material for the desiccant in air separation and natural gas drying devices.
3. Chemical Industry:
Fine chemicals: Protecting catalysts in synthetic reactors for industries such as medicine and pesticides.
Basic chemicals: Used as corrosion-resistant fillers in the production or storage of strong acids and strong bases.
4. Other fields:
Metallurgy: Used in equipment such as gas purification and hot blast stoves.
Electricity: In power plant water treatment, it serves as the supporting layer for ion exchange resins.
Research: Used for simulating industrial reaction conditions in the laboratory.
offerings
17%-19%Ordinary porcelain ball
Minimum content (%)
Maximum content (%)
Common content (%)
chemical composition
AL203
17
19
18
SiO2
70
77
74.9
AL203+SiO2
90
94
93
Fe203
/
1
0.5
TiO2
/
0.5
0.46
CaO
/
0.5
0.42
MgO
/
0.5
0.38
Na20
/
2
1.12
K20
/
3.5
3.28
Free iron (%)
≤0.1
stomatal percentage
Diameter ≥10mm
≤0.4
Diameter=6mm
≤1.0
Diameter=3mm
≤3.0
Water absorption (%)
Acid resistance (%)
Alkali resistance (%)
Bulk density
(g/cm3)Specific gravity (kg/cm3)
Mohs hardness (grade)
<2.0
>90
>85
1.3-1.35
2300
>6.5
Thermal conductivity
(w/m2.k)Specific heat capacity
(J/kg.℃)Maximum operating temperature (℃)
Thermal expansion (%) (500°C)
Thermal shock stability (500°C)
to cold water)0,9-1.0
628-837
1050
0.2
10 times
Geometric properties
Specification (mm)
3
6
10
13
16
19
25
38
50
Minimum compressive strength
≥0.3
≥0.8
≥1.0
≥2.5
≥3.2
≥7.4
≥8.3
≥9.3
≥15.4
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