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Itroduction
1. application: cenospheres is used in the oil field cementing,
to reduce cement costs and improve the life of wells
fireproofing material, building material
2. size: 10-550um
3. color: light gray or white
4. advantages: light weight, nontoxic, tasteless,corrosion resistant,
high temperature, pressure, insulation, small thermal conductivity,
excellent performance.
Physical Analysis Data | Chemical Analysis Data | ||||
Appearance | Grey/White powder | Thermal diffusivity | 0.000903- 0.0015m2/h | SiO2 | 50-55% |
Ture density | 0.6-0.99% | Compressive strength | 28Mpa min | Al2O3 | 28-33% |
Bulk density | 0.3-0.5g/cm3 | Mosh scale | 5-7 | Fe2O3 | 2-4% |
Moisture | 0.5% max | PH | 6 | SO3 | 0.1-0,2% |
Sinking particles | 10% max by volume | Coefficient of heatconduvtivity | 0.054- 0.095w/m.k |
CaO | 0.2-0.4% |
Melting point | 1400cmin | Refractive index | 1.54 | MgO | 0.8-1,2% |
Loss on ignition at 1000c | < 3% | Na2O | 0.3-0.9% | ||
Refractoriness | 1550-1750c | K2O | 0.5-1.1% | ||
cenosphere (microsphere fly ash 40mesh)