Pseudoboehmite is non-toxic, tasteless, odorless, white gel (wet product) or powder (dry product), high crystal phase purity, good molding performance, and has the characteristics of thixotropic gel. Low bulk ratio, large pore volume, large specific surface, easy to disperse, easy to dissolve in dilute acid and dilute alkali solution, and has good compatibility. After low-temperature roasting and dehydration, it becomes highly active alumina, which is a good raw material for various aluminum salts. After molding, it can be used as desiccant, adsorbent and catalyst carrier in different shapes. It is used in colorant and stabilizer in glass and enamel industry, and it is also a high-quality raw material for ink filler and luminescent material.
Ordinary pseudo-boehmite is mainly used as a catalyst carrier—the raw material of activated alumina, and can also be used as a forming binder for molecular sieves and silicate refractory fiber products, such as the binding agent for semi-synthetic rare earth Y-type molecular sieve cracking catalysts agent, as a catalyst for alcohol dehydration to ethylene and ethylene oxide catalysts, etc.
Product grade | Chemical composition, % | Physical and chemical properties | |||||||
SiO2 ≤ | Fe2O3 ≤ | Na2O ≤ | Moisture ≤ | Ignition ≤ | Peptization index% ≥ | Al2O3·3H2O % | Pore volumeml /g | Specific surface m2/g | |
≤ | ≥ | ≥ | |||||||
AT-PB-01 | 0.3 | 0.03 | 0.3 | — | twenty four | 95 | 5 | 0.3 | 280 |
AT-PB-02 | 0.3 | 0.03 | 0.3 | 25 | twenty four | 95 | 5 | 0.3 | 280 |
AT-PB-03 | 0.3 | 0.03 | 0.3 | 20 | twenty four | 95 | 5 | 0.3 | 280 |