97人妻精品一区二区三区

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            Calcined active α-alumina microspheres

            • 型號

            Product performanceAfter high temperature calcination, the quality is extremely hard, but it has a special specific surface area, pore volume and pore size. It can eliminate the diffusion effect in th

            1. Detailed information

            Product performance

            After high temperature calcination, the quality is extremely hard, but it has a special specific surface area, pore volume and pore size. It can eliminate the diffusion effect in the gap. In the process for selective oxidation, it can reduce the side reactions of deep oxidation, and can form a special shell structure during the impregnation process, which effectively improves the reaction performance.

            Application area

            Silver catalyst support, precious metal catalyst support for the oxidation of ethylene to ethylene oxide, and special catalyst support in the chemical industry.

            Technical specification

            Item
            Al2O3
            Size (mm)
            2-3/3-4/4-5/5-6
            Surface area (m2/g)
            1-30
            Crushing strength (N/Particle)
            >40/60/80/100
            L.O.I  (%)
            ≤1
            Bulk density (g/cm)
            0.90-0.95/0.8-1.0/0.85-0.95/0.85-0.90
            Water absorption (%)
            ≤1


            97人妻精品一区二区三区

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