Aluminum Trihydrate
Aluminum Hydroxide (Al(OH)₃) · Aluminum Trihydrate (ATH) · Hydrated Alumina · Alumina Trihydrate
Aluminum trihydrate (ATH) is a white, odorless, inorganic powder derived from bauxite ore via the Bayer process. It decomposes at high temperatures, releasing water vapor, which makes it an effective flame retardant and filler. The material is fine, dense, and slightly abrasive, with moderate moisture sensitivity. KWS designs enclosed conveying systems with abrasion-resistant components and dust control features for efficient ATH handling.
Overview
Chemical Formula
Common Names
Common Forms
Applications
- Flame retardant and smoke suppressant in plastics and rubber
- Filler in paints, coatings, and sealants
- Feedstock for alumina and aluminum chemical production
- Water treatment and filtration media
- Ceramics, glass, and refractory manufacturing
Material Characteristics
| Property | Value / Description |
|---|---|
| Common Forms | Fine Powder, Granulated Solid |
| Bulk Density | 55–70 lb/ft³ (depends on particle size and moisture content) |
| Flow Behavior | Cohesive and aeratable; may bridge and flush when fluidized |
| Abrasiveness | Moderate fine particles cause wear on metal surfaces |
| Corrosiveness | Not Corrosive but may retain residual moisture |
| Dust Potential | High fine powder requires dust collection and containment |
Handling Challenges
- Abrasive wear on screw flights, housings, and liners
- Dust generation and airborne particulate hazards
- Bridging and ratholing in hoppers and feeders
- Moisture absorption leading to caking and buildup
- Segregation of particle sizes during conveying and storage
Summary
Aluminum trihydrate 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 from wear-resistant materials and equipped with dust-tight designs to ensure reliable operation.
With extensive experience handling flame retardant fillers and fine industrial minerals, KWS ensures efficient, safe, and long-lasting performance for aluminum trihydrate conveying systems.
