Aluminum Oxide
Al₂O₃ · Alumina · Calcined Alumina · Corundum
Aluminum oxide, or alumina, is a hard, chemically inert material produced primarily by refining bauxite ore. It occurs as a fine, granular, or powdery substance depending on grade and processing method. Its high hardness and density make it abrasive, while the fine particles can become airborne, posing dust control and wear challenges. KWS designs heavy-duty, wear-resistant conveying systems to ensure efficient, dust-free alumina handling.
Overview
Chemical Formula
Common Names
Common Forms
Applications
- Aluminum metal production (Hall-Héroult process)
- Abrasives and polishing compounds
- Ceramic and refractory manufacturing
- Catalyst supports and chemical processing
Material Characteristics
| Property | Value / Description |
|---|---|
| Common Forms | Calcined Alumina, Activated Alumina, Tabular Alumina, Fine Powder, Granular |
| Bulk Density | 60–100 lb/ft³ (depends on grade and moisture content) |
| Flow Behavior | Free-flowing to sluggish; may fluidize or pack under pressure |
| Abrasiveness | Very High extremely hard and causes significant wear |
| Corrosiveness | Not Corrosive physically erosive to metals |
| Dust Potential | High fine powders are airborne and require containment |
Handling Challenges
- Severe wear on screws, housings, and liners due to hardness
- Dust generation requiring enclosed conveying and filtration
- Fluidization or flushing during discharge from bins or hoppers
- Caking or compaction under vibration or moisture exposure
- Potential contamination in high-purity applications
Summary
Aluminum oxide is a dense, abrasive bulk solid that requires conveying systems built for durability, precision, and dust control. KWS Manufacturing provides engineered solutions—including screw conveyors, drag conveyors, and abrasion-resistant components—that ensure reliable, long-lasting operation when handling alumina or similar high-wear materials.
With extensive experience in abrasive and high-purity applications, KWS ensures safe, efficient, and low-maintenance handling of aluminum oxide.
