Applications of Bauxite

Pseudomalachite, also known as pseudo-hydroxyaluminate, is a transitional product with uncertain composition and incomplete crystallization, ranging from disordered to ordered, from amorphous to crystalline states. Its crystal structure is similar to that of hydroxyalumina, but with smaller crystals and lower crystallinity, typically forming very thin, crumpled sheet crystals. It boasts high specific surface area, good solubility, strong adhesion, and large porosity, making it a versatile chemical raw material. Pseudomalachite products are odorless and tasteless, commonly available in a white gelatinous (wet) or powdery (dry) form.

Why is Bauxite Clay Gaining Popularity?

Bauxite has extensive applications in catalyst preparation, primarily due to its unique physical and chemical properties, which allow it to serve both as a catalyst carrier and binder, thereby effectively enhancing the performance of catalysts.

① Structurally adjustable, with high porosity: By regulating the pore structure, we construct a catalytic framework with a high specific surface area; leveraging the advantage of surface hydroxyls, we achieve atomic-level dispersion of active components. This directly translates to enhanced catalytic activity and extended service life.

② Excellent Solubility and Strong Adhesion: The superior bonding properties address the challenge between molding strength and catalytic activity. Whether your production process is extrusion, spray drying, or tablet pressing, it assists in efficiently producing catalyst products with regular shapes and reliable strength, reducing production complexity.

Applications of Bauxite:

① Catalyst Carrier: Palygorskite is widely used as a catalyst carrier in various chemical, refining, and petrochemical reactions, such as hydrogenation refining catalyst carriers and reforming catalyst carriers. After dehydration, palygorskite transforms into γ-alumina, which can also be used as a catalyst.

② Catalyst Binder: Optimizes the pore size distribution of the catalyst, enhances its structural stability under high temperature and hydrothermal conditions, and can regulate the density of acidic active centers on the catalyst surface, thereby effectively enhancing its catalytic reaction activity.

③ Preparation of Gamma-Alumina Coating: The commonly used precursor for the preparation of gamma-alumina coatings is AlOOH sol, which is produced from boehmite as raw material through the acid sol-gel method. The process is simple and controllable, suitable for industrial production.

Shandong BaiRui produces high-quality pseudoboehmite, which is a high-performance white dry powder made using advanced technology. It features adjustable pore structure (high porosity/medium porosity), moderate bulk density, excellent flowability, and good fluidization properties.

Our main products include PSB-NH-P-D pseudoboehmite, PSB-LOW-NA low-sodium pseudoboehmite, macroporous pseudoboehmite, mesoporous pseudoboehmite, and high-silicon pseudoboehmite, among others. Our pseudoboehmite offers high-quality solutions for various industries.

If you have any questions or needs regarding bauxite, welcome to contact Shandong Bairei Chemical —— a professional manufacturer of alumina.