Cenospheres is a can float on the surface of fly ash hollow ball, It is gray or white, thin wall and hollow, light weight, bulk density of 250-450kg/m3, particle size of about 0.1 mm, surface closed and smooth, small thermal conductivity, refractoriness is equal to or more than 1700℃ is excellent heat insulation refractory material, widely used in petroleum drilling and production of light weight castable. The chemical composition of cenospheres to SiO2 and Al2O3, with fine particles, hollow, lightweight, high strength, wear-resisting, withstand high temperatures, heat insulation, insulation flame retardant wait for a variety of functions. It has been widely used in various industries.
| And the number |
standards |
| Particle size |
40-120mesh |
| Sieving % |
99.5% |
| True density |
0.70~1.0 |
| Packing density |
≤0.45 |
| Hard degree |
5-6MoH |
| The refractive index |
1.52 |
| Refractoriness |
≥1680℃or higher |
| Silica |
50-60% |
| Yan color |
Gray (on the basis of sample） |
| PH |
6-8 |
| Floating rate |
≥98%or higher |
| Product safety information |
Non-toxic, no smell, no corrosion |
| Al2O3 |
25%-32% |
Cenospheres is a can float on the surface of fly ash hollow ball, It is gray or white, thin wall and hollow, light weight, bulk density of 250-450kg/m3, particle size of about 0.1 mm, surface closed and smooth, small thermal conductivity, refractoriness is equal to or more than 1700℃ is excellent heat insulation refractory material, widely used in petroleum drilling and production of light weight castable. The chemical composition of cenospheres to SiO2 and Al2O3, with fine particles, hollow, lightweight, high strength, wear-resisting, withstand high temperatures, heat insulation, insulation flame retardant wait for a variety of functions. It has been widely used in various industries.
| And the number |
standards |
| Particle size |
40-120mesh |
| Sieving % |
99.5% |
| True density |
0.70~1.0 |
| Packing density |
≤0.45 |
| Hard degree |
5-6MoH |
| The refractive index |
1.52 |
| Refractoriness |
≥1680℃or higher |
| Silica |
50-60% |
| Yan color |
Gray (on the basis of sample） |
| PH |
6-8 |
| Floating rate |
≥98%or higher |
| Product safety information |
Non-toxic, no smell, no corrosion |
| Al2O3 |
25%-32% |
