As a high-purity alumina precursor, low-sodium pseudo-boehmite occupies an important position in petroleum catalysis, lithium battery separators, electronic ceramics and other fields due to its excellent chemical stability and adjustable pore structure. Let me now introduce you to low-sodium pseudo-boehmite to enable better industrial application of this product.
Core characteristics:
• Ultra-low sodium content: avoids poisoning of catalytic systems by alkali metals
• High specific surface area: 200-400 m²/g (maintains good structure even after high-temperature calcination)
• Excellent thermal stability: specific surface area retention rate >85% after calcination at 500°C
• Controllable pore structure: pore size can be adjusted through synthesis process
Core advantages:
| Property | Regular Pseudo-boehmite | Low-sodium Pseudo-boehmite |
|----------------|------------------------|---------------------------|
| Sodium content (Na₂O) | 0.1%~0.5% | ≤0.05% (can be as low as 0.005%) |
| Thermal stability (500°C) | 30%~50% specific surface area decay | <15% decay |
| Application fields | Regular adsorption, catalysts | High-end catalysis, lithium batteries, electronic ceramics |
Key applications of low-sodium pseudo-boehmite:
1. Petrochemical catalysts
• Applications: FCC (fluid catalytic cracking), hydrotreatment, desulfurization catalysts, etc.
• Advantages:
o Sodium ions can poison catalyst active centers - low-sodium products extend catalyst life
o Resists sintering at high temperatures, maintaining high specific surface area
2. Lithium battery separator coatings
• Applications: Ceramic coatings for lithium-ion battery separators (e.g. power batteries, energy storage batteries)
• Advantages:
o Low sodium content avoids electrolyte contamination
o Ultra-fine particle size ensures uniform coating, improving battery safety
3. High-end ceramic materials
• Applications: Electronic ceramics, transparent ceramics, wear-resistant coatings
• Advantages:
o Low sodium reduces defects during high-temperature sintering, improving density
o No impurity phases, better optical/mechanical properties
4. Environmental adsorption and catalysis
• Applications: VOCs treatment, automotive exhaust catalysis (e.g. SCR catalysts)
• Advantages:
o Low sodium prevents neutralization of catalyst acid sites by alkaline substances
o High specific surface area enhances pollutant adsorption capacity
As a high-performance alumina precursor, low-sodium pseudo-boehmite plays an irreplaceable role in multiple industrial fields. With increasing application requirements, its low-sodium characteristics, high purity and functionalization will become the main directions for future development.