Recently, we received an inquiry about pseudoboehmite: "We are a company specializing in the research and development and production of high-end catalysts. We are currently looking for high-purity γ-Al₂O₃ for a new coating catalyst project. The specific surface area should be no less than 250 m²/g, Na₂O < 0.10%, SiO₂ < 0.20 wt%, and the loss on ignition should be stable at 24-26 wt%."
To address the aforementioned needs, we have launched a high-quality pseudoboehmite product. Its excellent physicochemical properties make it an ideal precursor for the preparation of high-quality γ-Al₂O₃, perfectly meeting the stringent requirements of catalyst production. Specific parameters and advantages are as follows:
SiO2 ≤0.2%
Fe2O3 ≤0.03%
Na2O ≤ 0.1%
Specific surface area ≥260m²/g
Burning ≤24％
Pore Volume 0.3-0.5ml/g
colloidal index％ ≥ 97％
Zibo Xiangrun's high-quality pseudoboehmite fully meets customer needs. Its SiO₂ content is below the customer's upper limit requirement for γ-Al₂O₃, effectively avoiding the inhibition of catalyst activity by silicon and laying the foundation for preparing a low-impurity finished product. Through a special impurity removal process, the sodium content is precisely controlled, and after calcination, the Na₂O content in γ-Al₂O₃ can be stably kept below 0.05 wt%, meeting the customer's core indicators. The loss on ignition is stable and below the customer's upper limit for γ-Al₂O₃, and the volume change during calcination is controllable, which is conducive to preparing a structurally stable finished product. The precursor itself has a high specific surface area; the boehmite produced by Zibo Xiangrun has an area greater than 260 m²/g, and after calcination, the specific surface area of γ-Al₂O₃ can be stably maintained above 250 m²/g, ensuring catalytic activity.
Furthermore, Zibo Xiangrun's high-quality pseudoboehmite possesses the following outstanding characteristics, providing added value to your company's novel coated catalyst projects: Controllable pore volume and pore size distribution: The product's pore volume is adjustable within the range of 0.3-0.5 ml/g, and the pore size distribution is concentrated, which is conducive to the formation of a well-developed and suitable mesoporous structure after calcination. This structure provides efficient mass transfer channels and abundant active site loading space for catalytic reactions, making it particularly suitable for the diffusion efficiency requirements of coated catalysts.
Excellent formability and coating adhesion: With a colloidal index of ≥97%, it can form a uniform and stable suspension system during catalyst slurry preparation, ensuring uniform coating distribution and strong adhesion on the carrier surface, ultimately resulting in a catalyst product with high mechanical strength, uniform coating, and resistance to peeling.
For your company, which focuses on the research and development and production of high-end coated catalysts, selecting a high-performance and stable precursor material is crucial. Zibo Xiangrun's high-quality pseudoboehmite, with its high purity, high specific surface area, controllable pore structure, and excellent colloidal properties, has become the preferred raw material for many well-known domestic and international catalyst companies. If you have any questions or needs regarding pseudoboehmite, please feel free to contact Zibo Xiangrun Environmental Engineering Co., Ltd. – a professional alumina manufacturer.
