Aluminum Hydroxide
Al(OH)₃ · Hydrated Alumina · ATH · Aluminum Trihydroxide · Alumina Hydrate
Aluminum hydroxide (ATH) is a white, odorless, inorganic compound produced from bauxite through the Bayer process. It decomposes when heated, releasing water and forming alumina, making it useful as a flame retardant and filler. The material is dense, fine, and moderately abrasive, with a tendency to generate dust and compact in storage. KWS designs enclosed, abrasion-resistant conveying systems to handle aluminum hydroxide safely and efficiently while minimizing dust emissions.
Overview
Chemical Formula
Common Names
Common Forms
Applications
- Flame retardant and smoke suppressant in plastics and rubber
- Filler in paints, coatings, and adhesives
- Feedstock for alumina and aluminum production
- Water treatment and filtration media
- Pharmaceutical and cosmetic formulations
Material Characteristics
| Property | Value / Description |
|---|---|
| Common Forms | Fine powder, Granulated solid |
| Bulk Density | 55–70 lb/ft³ (depends on particle size and moisture) |
| Flow Behavior | Cohesive and aeratable; may bridge or flush when fluidized |
| Abrasiveness | Moderate fine particles cause gradual wear on metal surfaces |
| Corrosiveness | Low non-corrosive but can retain residual moisture |
| Dust Potential | High fine powder requires containment and dust collection |
Handling Challenges
- Abrasive wear on screws, troughs, and liners
- Dust generation requiring enclosed conveying systems
- Bridging and ratholing in hoppers and feeders
- Moisture absorption leading to caking and buildup
- Segregation and compaction during conveying and storage
Summary
Aluminum hydroxide requires conveying and storage systems designed for dense, fine, and moderately abrasive powders. KWS Manufacturing provides engineered conveying solutions—including screw conveyors, drag conveyors, and feeders—constructed with wear-resistant materials and dust-tight enclosures to ensure long-lasting, reliable operation.
With extensive experience handling flame retardant fillers and fine industrial minerals, KWS ensures efficient, safe, and low-maintenance performance for aluminum hydroxide conveying systems.
