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    99 Support Media
    Home / industrial instruments

    99 Support Media

    • Alumina Grinding Balls
    • 23 Support Media

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    Category: industrial instruments Tag: Support Media
    • Alumina Grinding Balls
    • 23 Support Media
    • Description
    • Reviews (0)

    Introduction :

    The 99 High Alumina Support Media is in chemical composition99+% alpha alumina and a maximum 0.2wt% SiO2. Because of its high alumina content and low silica (SiO2 ), it’s a very excellent and ideal product for high temperature and steam applications, such as secondary reformers in ammonia processing, where leached silica will coat downstream equipment or foul the catalyst bed.

    The Xintao 99 High Alumina Support Media has very excellent thermal properties, with its high density high-temperature resistance 1550℃, also it’s a good choice for heat retention or deceleration media.For its superior chemical resistance, it’s suitable for applications in ole fin processes, such as ethylene dryers, where there’s the polymerization problem.

    Typical Application:

    1. a) high temperature and steam
    2. b) has very excellent thermal properties, with its high density high-temperature resistance 1550℃,
    3. c) it’s suitable for applications in ole fin processes, such as ethylene dryers

    Size tolerance:

    Diameter Ф 3 6 8 10 13 16 20 25 30 38 50 75
    Size tolerance ±1.0 ±1.5 ±2.0 ±3.0
    Model:  Xintao 99
    Color: White
    Shape: Ball
    Typical Technical Composition Min. % Max. % Usual %
    SiO2 ****** 0.2 0.18
    Al2O3 90 99.6 99.3
    Fe2O3 ****** 0.2 0.02
    TiO2 ****** 0.55 0.02
    CaO ****** 0.1 0.2
    MgO ****** 0.1 0.05
    Na2O ****** 0.25 0.1
    K2O ****** 0.2 0.13
    Physical properties
    Index Value Value
    Leachable Iron ≤ 0.01%  
    Apparent Porosity by Weight ≤ 7.0%  
    Moh’s Hardness Scale >8.0  
    Water Absorption <4.0wt.%  
    Acid Resistance >99.8%  
    Thermal Conductivity 0.7-0.8 w/m2 .k  
    Thermal Shock Stability, 1000 ℃

    then water cooling

    10 times  
    Max. Operating Temperature 1550°C 2822
    Specific Density 3.4g /cm3 212 lb /ft3
    Bulk Density (Packing Density) 2.1g /cm3 131 lb /ft3
    Size / Crush Strength
    Nominal Size (lbs) (kg) (N/pc)
    mm inch min. min. min.
    3 1/8″ 115 52 510
    6 1/4″ 230 105 1030
    10 3/8″ 440 200 1961
    13 1/2″ 1355 615 6031
    16 5/8″ 1720 780 7650
    19 3/4″ 3344 1520 14896
    25 1″ 3432 1560 15288
    38 1-1/2″ 4034 1830 17946
    50 2″ 4960 2250 22065

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