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  • The excellent characters of alumina ceramic ball :
    1:  High purity , alpha alumina structure , low silica 
     alumina ball 99% is with > 99wt % alpha alumina and < 0.2wt % of SIO2, the high purity , low silica and high strength make this balls an ideal selection for the high temperature and steam applications, where the environment should be avoid the problem of leached silica coating downstream equipment of fouling or polluting the catalyst bed 
    2: Excellent thermal and mechanical shock resistance properties
    With the excellent of thermal and mechanical shock resistance properties and the high density , alumian ceramic ball 99% are able to work on the temperature up to 1600 degree 
    3: Excellent chemical stability with strong resisting of acid , alkaline and organic impregnant make it suitable for applications in olefin processes such as ethylene dryers , where polymerization could be a problem 

    Chemical composition :

    Items 

    Type 90

    Type 99

    Type 99.5

    Al2O3

    >90%

    >99%

    >99.5%

    SiO2

    < 7% 

    <0.2%

    <0.2%

    Fe2O3

    <0.5%

    <0.1%

    <0.1%

    Na2O+K2O

    <1.0%

    <1.0%

    <0.4%

    MgO+CaO

    <1.0%

    <0.2%

    <0.2%



    Physical Character:

    Item 

    Type 90

    Type 99-1

    Type 99-2

      Type-99.5

    Heat resistant up to 

    1500 ℃

    1500 ℃

    1600 ℃

      1600 ℃

    Water absorption 

    <5 % 

    2-6%

    <1 %

       <1 %

    Particle Density (g/cm3)

    >3.1

    >3.3

    3.3~3.65

      3.3~3.65

    Package Density (kg/L)

    1.6-1.7

    1.9-2.0

    2.0

      2.0

    Mohs hardness (Scale)

    9

    9

    9

      9

    Impact shorck resistance (from height 6 m))

    Passed 

    Passed 

    Passed 

    Passed 

    Average crushing strength

    Lbs/pic

    KN/pic

    Lbs/pic

    KN/pic

    Lbs/pic

    KN/pic

    Lbs/pic

    KN/pic

    3mm (1/8)

    90

    0.4

    112

    0.5

    135

    0.6

    135

    0.6

    6mm (1/4)

    292

    1.3

    337

    1.5

    360

    1.6

    360

    1.6

    10mm (3/8)

    1125

    5

    1350

    6

    1350

    6

    1350

    6

    13mm(1/2)

    1575

    7

    1800

    8

    1800

    8

    1800

    8

    16mm (5/8)

    3375

    15

    2025

    9

    2925

    13

    2925

    13

    19mm (3/4)

    3825

    17

    4049

    18

    4275

    19

    4275

    19

    25mm (1)

    4949

    22

    4500

    20

    4949

    22

    4949

    22

    38mm (1-1/2)

    7874

    35

    8324

    37

    8999

    40

    8999

    40

    50mm (2)

    8999

    40

    9449

    42

    10123

    45

    10123

    45

    76mm (3)

    11248

    50

    12373

    55

    13498

    60

    13498

    60

     Application: Oil refinery, chemical, fertilizer, natural gas and environmental protection industries etc.


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