Product overview
Our AM-series alumina microspheres are white or slightly reddish sand-like granules — non-toxic, odorless, insoluble in water and organic solvents, and soluble in strong acids and alkalis. Produced with proprietary technology, they feature large pore volume, high specific surface area, low attrition, and a narrow particle size distribution. As a novel catalyst support, the fine particles enable faster reaction kinetics and excellent impregnation of rare earth metals and other active components, serving fluidized-bed petrochemical catalysts, pharmaceutical catalysts, chemical purification catalysts, and desiccant applications.
Technical specifications
Physical properties
| Appearance | White microspheres |
| Crystal phase | γ-Al₂O₃ / transition alumina |
| Particle size (D50) | 40-120 μm |
| Particle size distribution | Span ≤1.5 |
| Bulk density | 0.6-0.9 g/cm³ |
Chemical composition
| Al₂O₃ content | ≥90% |
| Na₂O content | ≤0.4% |
| SiO₂ content | ≤0.2% |
| Fe₂O₃ content | ≤0.05% |
| Loss on ignition | ≤5% |
Performance characteristics
| BET surface area | 100-250 m²/g | Pore volume | 0.3-0.6 cm³/g |
| Attrition index | ≤2.0% | Apparent density | 0.8-1.2 g/cm³ |
Alumina microspheres (AM series) specifications
| Grade | SiO₂ (%) | Fe₂O₃ (%) | Na₂O (%) | Pore volume (ml/g) | Surface area (m²/g) | Bulk density (g/cm³) | LOI (%) | Particle (mm) | Attrition (%) | Pore size (nm) |
|---|---|---|---|---|---|---|---|---|---|---|
| AM-01-C | ≤0.30 | 0.01–0.03 | ≤0.05 | 0.7–0.9 | 100–350 | 0.4–0.6 | ≤6.0 | 0.1–1 | ≤0.3 | 6–15 |
| AM-01-X | ≤0.30 | 0.01–0.03 | ≤0.05 | 0.5–0.7 | 100–350 | 0.4–0.6 | ≤6.0 | 0.1–1 | ≤0.3 | 6–15 |
| AM-02-C | ≥1 | 0.01–0.03 | ≤0.05 | 0.7–0.9 | 100–350 | 0.5–0.9 | ≤6.0 | 0.1–1 | ≤0.3 | 6–15 |
| AM-02-X | ≥1 | 0.01–0.03 | ≤0.05 | 0.5–0.7 | 100–350 | 0.5–0.9 | ≤6.0 | 0.1–1 | ≤0.3 | 6–15 |
| AM-03-C | ≤0.30 | 0.01–0.03 | ≤0.05 | 0.35–0.45 | 100–300 | 0.5–0.9 | ≤5.0 | 0.1–0.5 | ≤0.2 | 6–15 |
| AD-01 | ≤0.30 | 0.01–0.03 | ≤0.05 | 0.35–0.45 | 100–300 | 0.5–0.9 | ≤5.0 | 0.04–0.1 | ≤0.5 | – |
Note: AD-01 is produced by spray-drying, mainly used as fluidized-bed catalyst, desiccant, adsorbent, and as carrier for melamine and automotive exhaust catalysts. Specifications can be adjusted to customer requirements.
Applications
Alumina microspheres play a key role in fluid catalysis, providing excellent catalytic performance and fluidization behavior.
Fluid catalytic cracking
Used in FCC in refining to convert heavy feedstocks into lighter products.
Catalyst matrix
Catalyst matrix material providing high surface area and suitable pore structure.
Fluidized-bed applications
Excellent fluidization makes them ideal for a wide range of fluidized-bed reactors.
Catalyst regeneration
Good regeneration performance enables multiple reuse cycles.
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.