Boehmite is used as a filler in various industrial applications, particularly due to its special chemical and physical properties. As a crystalline form of aluminum hydroxide (γ-AlOOH), boehmite offers several advantages that make it a valuable material in the chemical industry, especially in the production of catalysts.
Properties of boehmite as a filler:
High thermal stability: Boehmite is thermally stable to a certain degree and decomposes into aluminum oxide (Al₂O₃) at higher temperatures (above 300 °C). This property makes it ideal for high-temperature applications, especially in catalysts or heat-resistant materials.
Pore structure and surface: Boehmite has a relatively high specific surface area and a good pore structure, making it an excellent filler for applications requiring high surface activity. This is particularly useful in the production of catalyst support materials, where an optimized surface area is crucial for the effective distribution of the active catalytic phases.
Reactivity and Conversion: In many applications, boehmite is specifically used as a precursor that can be converted to aluminum oxide (γ-Al₂O₃) by thermal treatment. This conversion allows for control of the structure and properties of the final material, which is advantageous for adapting it to specific industrial processes.
Applications of Boehmite as a Filler:
Catalytic Production: As a filler, boehmite is often used to increase the mechanical stability and porosity of catalysts. Due to its high specific surface area and good thermal stability, it is used in catalytic processes that require a large reaction area and a uniform distribution of the active phases. Boehmite plays a central role, especially in hydrogenation and reforming reactions.
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