Macroporous Alumina Microspheres (γ-Al2O3 / α-Al2O3)
Engineered with a highly controlled macroporous structure, narrow particle size distribution, and low fluid resistance. Ideal as high-performance catalyst supports, chromatographic media, and specialized fluidization carriers.
Pore Diameter: 50 - 500 nm Particle Size: 20 - 150 μm (Micron) Spheric Rate: 95%
Precision-engineered macroporous alumina microspheres featuring high mechanical strength and uniform pore distribution.
Key Material Advantages
- Tailored Macroporous Architecture: Interconnected macropores significantly reduce intraparticle diffusion resistance, enabling rapid mass transfer for bulky molecules and polymer catalysts.
- High Sphericity & Fluidity: Excellent spherical morphology (≥ 95%) ensures superior flowability, uniform packing density, and reduced abrasion in fluid bed reactors.
- Tunable Phase & Pore Volume: Available in both active Gamma ($gamma$) and inert Alpha ($alpha$) crystalline phases with customizable pore volume ($0.45 - 0.85 text{ cm}^3/text{g}$).
- Superior Thermal & Hydrothermal Stability: Resists pore collapse and sintering during high-temperature reaction and catalyst regeneration cycles.
Process Engineering Performance
Macropore Diameter
50 - 500 nm
Optimized for macromolecular reactions, protein separation, and heavy oil hydroprocessing.
Pore Volume Range
0.45 - 0.85 cm³/g
High pore volume provides generous active component loading capacity.
Particle Size Range
20 - 150 μm
Narrow size distribution optimized for fluid bed reactors and micro-column packing.
Technical Data Sheet (TDS) - Microsphere Grade
Target Industrial Applications
- Fluidized Bed Catalyst Supports: Uniform micro-spherical shape prevents bed channeling and attrition loss during high-velocity fluidization processes.
- Heavy Oil Hydrotreating & Demetallization: Large macropores easily accommodate heavy metal deposits (Ni, V) and bulky asphaltene molecules without clogging pore channels.
- Bio-Separation & Chromatography Media: Excellent stationary phase for macroporous purification of proteins, enzymes, and natural pharmaceutical extracts.
- Polymerization Catalyst Carriers: Provides uniform active site distribution and ideal pore space for polyolefin and specialty chemical synthesis.
Packaging & Handling Standard
Moisture-Proof Packaging: 20 kg / 25 kg fiber drums or multi-layer Kraft paper bags with sealed double inner PE liners.
Bulk Export Shipping: Customized palletized loads or aluminum-foil vacuum bags for high-purity pharmaceutical and catalytic grade storage.
Bulk Export Shipping: Customized palletized loads or aluminum-foil vacuum bags for high-purity pharmaceutical and catalytic grade storage.
