oilwell cementing material fly ash cenosphere 40mesh
floating beads/cenosphere/hollow microspheres
definition | We mainly produce lightweight cenosphere. It is also called hollow microspheres. They’re extracted from fly ash of the thermal power plants and main chemical composition is aluminium silicate. They’re lightweight grey-white hollow microspheres in closed and smooth surface. | ||||||||
Main chemical composition % | SiO2 | Al2O3 | Fe2O3 | SO3 | CaO | MgO | K2O | Na2O | |
56-62 | 33-38 | 2-4 | 0.1-0.2 | 0.2-0.4 | 0.8-1.2 | 0.5-1.1 | 0.3-0.9 | ||
specification | 20mesh,40mesh,60mesh | ||||||||
feature | High fire resistance, high hardness, high strength, fine granularity, large specific area, good electric insulation and sound insulation, excellent flowability, lower cost | ||||||||
application | Application field | use | |||||||
Refractory & thermal insulation | Refractory brick, pipe insulation shell, casting insulating riser, lightweight insulating abrasion resistant glass steel etc. | ||||||||
construction | Building decoration, road construction, waterproof and thermal insulation coating for the roofing etc. | ||||||||
Oil industry | Oil well cementing, pipeline anticorrision & thermal insulation, offshore oilfield, flotation gear, reducing agent for oil drilling mud, oil & gas transmission pipeline | ||||||||
Insulation material | Plastic activation filling agent, high temperature & high pressure insulator etc. | ||||||||
Coating industry | Paintings, printing ink, adhesion agent, insulating paint, anti-corrosion paint, high temperature resistant & fireproof painting, wall coating etc. | ||||||||
packing | 20kg/bag or as requested |
Technical index
item | index |
color | Grey-white color |
True density | 0.7-0.95 |
Bulk density | 0.3-0.45g/CM3 |
Mohs hardness | 6-7 |
Refractoriness | 1580-1770°C |
Specific resistance | 1010-1013Ω.CM |
Melting point | ≥1400°C |
Coefficient of temperature conductivity | 0.000903-0.0015M2/h |
Thermal conductivity | 0.054-0.095w/m.k |
Compression strength | ≥350Mpa |
Refractive index | 1.54 |
PH value(water dispersion system) | 6 |
Loss on ignition | <1.0 |
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