Detailed Product Description
Introduction
XINTAO ceramic ball is one of the new media in the industry with unmatched impact resistance, thermal shock, crush strength, andsurvivability. Products to these specifications are manufactured from very high quality chemical-porcelain clay materials, which has quite excellentstability, high mechanical strength and resistance to thermal shock, This makes them all ideal choice for support of all types of catalyst.
Chemical composition
Typical Technical Composition | Min. % | Max. % | Usual % |
SiO2 | 61.50 | 77.00 | 74.90 |
Al2O3 | 18.50 | 26.00 | 19.90 |
Fe2O3 | ****** | 1.60 | 0.90 |
TiO2 | ****** | 1.40 | 0.93 |
CaO | ****** | 1.00 | 0.13 |
MgO | ****** | 1.00 | 0.34 |
Na2O | ****** | 1.80 | 1.56 |
K2O | ****** | 5.50 | 2.34 |
Al2O3+SiO2 | 90.00 | 96.00 | 92.80 |
Physical properties
Index | Value | Value |
Leachable Iron | ≤ 0.1% | ****** |
Apparent Porosity by Weight | 2-6 % | ****** |
Moh's Hardness Scale | >6.5 | ****** |
Water Absorption | <1.0wt.% | ****** |
Acid Resistance | >99.8% | ****** |
Thermal Conductivity | 0.9-1.0 w/m 2 .k | ****** |
Thermal Expansion @ 500 | 0.20% | ****** |
Specific Heat | 628-837 j/kgq | ****** |
Thermal Shock Stability, @ 500 then water cooling | 10 times | ****** |
Max. Operating Temperature | 1050 | 1922 |
Specific Density | 2,200 kg /m 3 | 137 lb /ft 3 |
Bulk Density (Packing Density) | 1,300 g /cm 3 | 81 lb /ft 3 |
Crush Strength
Size / | Crush Strength |
Nominal Size | (lbs) | (kg) | (N/pc) |
mm | inch | min. | min. | min. |
3 | 1/8 | 55 | 25 | 245 |
6 | 1/4 | 165 | 75 | 735 |
10 | 3/8 | 265 | 120 | 1176 |
13 | 1/2 | 518 | 235 | 2305 |
16 | 5/8 | 617 | 280 | 2745 |
19 | 3/4 | 1070 | 485 | 4756 |
25 | 1 | 1763 | 800 | 7845 |
38 | 1-1/2 | 2050 | 930 | 9120 |
50 | 2 | 3142 | 1425 | 13975 |
Typical Applications:
1.Desiccant Dryer: A typical desiccant dryer uses a 1.6mm (1/16 inch) pellet molecular sieves. A 50mm (2 inch) depth of 3mm*3mm (1/8*1/8 inch) ceramic pellets are placed under the molecular sieves directly.
2.Hydrocracker: In typical petroleum processes using a 3mm (1/8 inch) diamter pellet catalyst, the bed is identical to the one described above, except that the catalyst cab be placed directly on top of 6mm (1/4 inch) support medias, thus eliminating the layer of pelletized support media.
3. Petrochemical Reaction: In petrochemical applications, such as oxidaton reactions, larger catalyst and supports, typically 6mm (1/4 inch) diameter are used.