Product overview
Our spherical alumina carriers serve as catalyst supports that enhance catalyst dispersion, stability, and activity, and are widely used in petroleum refining, exhaust gas treatment, and organic synthesis. They can also be used as thermally conductive fillers in thermal interface materials, thermally conductive engineering plastics, and aluminum-based copper-clad laminates, effectively improving thermal conductivity and heat dissipation performance.
Technical specifications
Physical properties
| Appearance | White extrudates/spheres |
| Crystal phase | γ-Al₂O₃ |
| Shape | Cylindrical extrudates/spheres |
| Particle size | 1-10 mm (Customizable) |
| Bulk density | 0.5-0.8 g/cm³ |
Chemical composition
| Al₂O₃ content | ≥92% |
| Na₂O content | ≤0.3% |
| SiO₂ content | ≤0.1% |
| Fe₂O₃ content | ≤0.05% |
| Loss on ignition | ≤6% |
Surface & mechanical properties
| BET surface area | 150-350 m²/g | Pore volume | 0.4-1.0 cm³/g |
| Side crush strength | ≥80 N/pellet | Attrition loss | ≤1.0% |
Spherical alumina carrier specifications
AS-01 / AS-02 / AS-03
| Item | Unit | Spec | Spec | Spec | Spec | Spec |
|---|---|---|---|---|---|---|
| Appearance | – | Spherical | ||||
| Grades | – | AS-01, AS-02, AS-03 | ||||
| Particle size | mm | Φ1–2 | Φ2–3 | Φ3–4 | Φ4–6 | Φ15–25 |
| Loss on ignition | % | ≤6.0 | ≤6.0 | ≤6.0 | ≤6.0 | ≤6.0 |
| Surface area | m²/g | 150–350 | 150–350 | 150–350 | 150–350 | 150–350 |
| Pore volume | cm³/g | 0.5–0.9 | 0.5–0.9 | 0.5–0.9 | 0.5–0.9 | 0.5–0.9 |
| Bulk density | g/cm³ | 0.4–0.75 | 0.4–0.75 | 0.4–0.75 | 0.4–0.75 | 0.4–0.75 |
| Crushing strength | N/particle | ≥25 | ≥40 | ≥60 | ≥100 | ≥300 |
| Water absorption | % | 60–150 | 60–150 | 60–150 | 60–150 | 60–150 |
AS-04 / AS-05
| Item | Unit | Spec | Spec | Spec | Spec |
|---|---|---|---|---|---|
| Appearance | – | Spherical | |||
| Grades | – | AS-04, AS-05 | |||
| Particle size | mm | Φ1–2 | Φ2–3 | Φ3–4 | Φ4–6 |
| Loss on ignition | % | 0.5–5 | 0.5–5 | 0.5–5 | 0.5–5 |
| Surface area | m²/g | 150–350 | 150–350 | 150–350 | 150–350 |
| Pore volume | cm³/g | 0.3–0.5 | 0.3–0.5 | 0.3–0.5 | 0.3–0.5 |
| Bulk density | g/cm³ | 0.4–0.75 | 0.4–0.75 | 0.4–0.75 | 0.4–0.75 |
| Crushing strength | N/particle | ≥25 | ≥40 | ≥60 | ≥100 |
Note: Specifications can be adjusted to customer requirements.
Applications
Alumina carriers are widely used across catalytic processes, delivering excellent support for catalysts.
Oil refining
Used in hydrotreating, hydrocracking, catalytic reforming, and other refining processes.
Petrochemical
Catalyst support for production of ethylene, propylene, and other petrochemicals.
Environmental catalysis
Catalysts for vehicle emission control and industrial off-gas treatment.
Fine chemicals
High-performance catalyst support for diverse fine chemical syntheses.
Packaging & storage
📦 Packaging options
- 25 kg woven polypropylene bags
- 500 kg bulk bags
- Custom packaging available on request
🌡️ Storage conditions
- Store in a cool, dry place
- Avoid moisture and contamination
- Shelf life: 24 months
Ready to order?
Contact our sales team for quotes, availability, and custom specifications.