pseudoboehmite, also known as pseudoboehmite, is a transitional product with uncertain composition and incomplete crystallization, ranging from disordered to ordered, and from weakly crystalline to crystalline states. Its crystal structure is completely similar to boehmite, but the crystals are smaller and have poorer crystallinity, typically consisting of very thin, wrinkled lamellae. It possesses high specific surface area, good colloidal solubility, strong binding properties, and large pore volume, making it a widely used chemical raw material. Boehmite products are tasteless and odorless, and are typically white, gel-like (wet) or powdery (dry).
Why is pseudoboehmite so popular?
Pseudoboehmite has wide applications in catalyst preparation, primarily due to its unique physicochemical properties, which allow it to function as both a catalyst support and binder, effectively enhancing catalyst performance.
① Tunable structure and high porosity: By controlling the pore structure, a high specific surface area catalytic framework can be constructed; utilizing the advantage of surface hydroxyl groups, atomic-level dispersion of active components can be achieved. This directly translates into superior catalyst activity and a longer lifespan.
② Good colloidal properties and strong adhesion: Excellent bonding properties solve the challenge of balancing molding strength and catalytic activity. Regardless of whether your production process is extrusion, spraying, or tableting, it helps you efficiently produce catalyst products with regular shapes and reliable strength, reducing production complexity.
Applications of pseudoboehmite:
① Catalyst support: pseudoboehmitee is widely used as a catalyst support in various chemical, refining, and petrochemical reactions, such as hydrorefining catalyst support, reforming catalyst support, and methanation catalyst support. After dehydration, pseudoboehmite becomes γ-alumina and can also be used as a catalyst.
② Catalyst binder: It can optimize the pore size distribution of catalysts, enhance their structural stability under high temperature and hydrothermal environments, and regulate the density of acidic active sites on the catalyst surface, thereby effectively improving their catalytic activity.
③ Preparation of γ-alumina coatings: The commonly used precursor for preparing γ-alumina coatings is AlOOH sol. This aluminum sol is prepared from boehmite using an acid-sol method, which is simple and easy to control, and can be used for industrial production.
Zibo Xiangrun produces high-quality pseudoboehmite.Their pseudoboehmite is a high-performance white dry powder manufactured using advanced technology, possessing the following characteristics: adjustable pore structure (high porosity/medium porosity), moderate bulk density, excellent flow properties, and superior fluidization characteristics.
Main products include: PSB-NH-P-D pseudoboehmite, PSB-LOW-NA low-sodium pseudoboehmite, macroporous pseudoboehmite, mesoporous pseudoboehmite, and high-silica pseudoboehmite. Our pseudoboehmite can provide excellent solutions for various industries.
If you have any questions or needs regarding pseudoboehmite, please contact Zibo Xiangrun Environmental Engineering Co., Ltd. – a professional alumina manufacturer.
