Special Design for Porcelain Grinding Ball - Inert Middle Alumina Balls – Catalyst Support Media – Kelley
Special Design for Porcelain Grinding Ball - Inert Middle Alumina Balls – Catalyst Support Media – Kelley Detail:
Application
They are widely used in many fields, including petroleum, chemical engineering, fertilizer production, natural gas and environmental protection. They are used as covering and supporting materials of catalysts in reaction vessels and as packing in towers.
Chemical Composition
Al2O3+SiO2 | Al2O3 | Fe2O3 | MgO | K2O+Na2O +CaO | Others |
> 93% | 45-50% | <1% | <0.5% | <4% | <1% |
Physical Properties
Item |
Value |
Water absorption (%) |
<2 |
Bulk density (g/cm3) |
1.4-1.5 |
Specific gravity (g/cm3) |
2.4-2.6 |
Free volume (%) |
40 |
Operation temp.(max) (℃) |
1200 |
Moh’s hardness (scale) |
>7 |
Acid resistance (%) |
>99.6 |
Alkali resistance (%) |
>85 |
Crush Strength
Size |
Crush strength |
|
Kgf/particle |
KN/particle |
|
1/8”(3mm) |
>25 |
>0.25 |
1/4”(6mm) |
>60 |
>0.60 |
3/8”(10mm) |
>80 |
>0.80 |
1/2”(13mm) |
>230 |
>2.30 |
3/4”(19mm) |
>500 |
>5.0 |
1”(25mm) |
>700 |
>7.0 |
1-1/2”(38mm) |
>1000 |
>10.0 |
2”(50mm) |
>1300 |
>13.0 |
Size and Tolerance (mm)
Size |
3/6/9 |
9/13 |
19/25/38 |
50 |
Tolerance |
±1.0 |
±1.5 |
±2 |
±2.5 |
Product detail pictures:



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We retain improving upon and perfecting our items and repair. At the same time, we perform actively to do research and progress for Special Design for Porcelain Grinding Ball - Inert Middle Alumina Balls – Catalyst Support Media – Kelley, The product will supply to all over the world, such as: Albania, Greece, Spain, Our company's main items are widely used all over the world; 80% of our products and solutions exported to the United States, Japan, Europe and other markets. All stuff sincerely welcome guests come to visit our factory.

Good quality, reasonable prices, rich variety and perfect after-sales service, it's nice!
