What is Boehmite Powder?
Boehmite Powder is a high-purity alumina monohydrate, widely recognized as a flame retardant and functional filler for high-temperature plastics and various industrial applications. Its unique oxide hydroxide structure and excellent thermal properties make it a valuable material across multiple sectors.
Related products: Pseudoboehmite
How is Boehmite Powder Produced?
Boehmite Powder is typically produced by the hydrothermal aging of aluminum hydroxide. This method yields a highly crystalline (up to 99%) aluminum oxide hydroxide with low impurity content. The result is a material with exceptional performance in demanding environments, particularly where high temperature and chemical resistance are critical.
Boehmite Powder Specifications:
| ItemBrands | Chemical components % | Physical performance | |||||||
| SiO2≤ | Fe2O3≤ | Na2O≤ | Moisture | L.O.I≤ | Gelationindex% | Al2O3·3H2O% | Porevolumeml/g | BET m2/g≥ | |
| P-G-03 | 0.30 | 0.03 | 0.30 | — | 24 | ≥95 | ≤5 | ≥0.3 | 250 |
| P-D-03 | 0.30 | 0.03 | 0.30 | ≤25 | 24 | ≥95 | ≤5 | ≥0.3 | 250 |
| P-DF-03 | 0.30 | 0.03 | 0.30 | ≤20 | 24 | ≥95 | ≤5 | ≥0.3 | 250 |
| P-DF-03-LS | 0.03 | 0.10 | - | - | - | ≥95 | 5 | ≥0.3 | 250 |
| Chemical composition % | |
| Fe2O3 | ≤0.04 |
| Na2O | ≤0.2 |
| moisture | ≤0.5 |
| Physical performance | |
| L.O.I | ≤17 |
| D50(μm) | 2.0±0.5 |
| BET（m2/g） | ≥70 |
| bulk density（g/cm3） | 0.3-0.5 |
A-AS-HC-GSA Boehmite is an important precursor for the preparation of γ-Al2O3 and α-Al2O3, mainly used in catalyst and its carrier materials, coating material, porous membranes and soft abrasive, high temperature ceramics etc.
Key Properties of Boehmite Powder
- High thermal stability (up to 300°C)
- Excellent thermal conductivity
- High purity and low impurity content
- Low water absorption
- Good dispersion and colloidal stability
- Scratch and mar resistance
- Available in surface-treated forms
- Also offered as a water-based slurry
- Low Mohs hardness, making it suitable for sensitive composite applications
Applications of Boehmite Powder
Boehmite Powder is versatile and finds usage in a wide range of applications, including:
1. Catalysts and Catalyst Supports
Due to its high surface area and chemical purity, Boehmite Powder is used in the oil refining industry as a key material in catalyst formulations.
2. Flame Retardant in Polymers
Halogen-free and environmentally friendly, Boehmite Powder is widely applied in polymer materials that require flame resistance and high-temperature performance.
3. Lithium-Ion Batteries (LIBs)
Boehmite Powder is used in the production of battery electrodes and separators. Its excellent insulation properties, chemical stability, and thermal resistance make it ideal for lithium battery coating applications.
4. Printed Circuit Boards (PCBs)
Boehmite’s thermal conductivity and stability contribute to its growing use in electronics, especially in thermal management layers of PCBs.
5. Automotive and Industrial Coatings
In high-performance coatings, Boehmite Powder improves scratch resistance and enhances durability, particularly in automotive and aerospace applications.
6. Composites and Gelcoats
Hydrophobic gelcoats containing Boehmite are widely used in marine and sanitaryware applications due to their moisture resistance and mechanical performance.
7. Ceramic Pigments and Sol-Gel Ceramics
Boehmite Powder is a critical precursor for producing Al₂O₃ ceramics through the sol-gel method. It also serves as a binder in catalysis and helps control rheology in ceramic production.
Banlann Chem and Other Specialized Boehmite Grades
Our Boehmite Powder line includes grades specifically tailored for:
- Catalysts
- Battery materials
- Coatings
- Composites
- Ceramics
We also offer organic coatings upon request, optimized for either water-based or solvent-based systems to match different customer needs.
Packaging and Handling of Boehmite Powder
We ensure that all Boehmite Powder is carefully handled during packaging, storage, and transportation to maintain its original quality. Available in various formats—including powder and slurry—our products are tailored to meet diverse application requirements.
Boehmite Powder is a high-performance material with growing significance in industries ranging from energy storage to electronics, coatings, and refractories. With its outstanding thermal, mechanical, and chemical properties, it provides a sustainable and effective solution for modern high-tech applications.
