Product Information - Cenospheres

Information

Cenospheres arise as light weight filler from a washing process of fly ash from coal fired power plants. The grain size of cenospheres varies from 0 – 700 µm. Specific grades, f.e. 0 – 100 µm or 100 - 700 µm, can be produced by sieving.

Specification

Chemical analysis: c. 21 - 39% Al2O3, c. 54 - 65% SiO2
Acid solubility: resistant against acids and alkali
Colour: white to dark grey
Particle shape: inert, non metallic hollow glass bubbles
Specific weight: c. 0,7 - 1,0 g/cm3
Specific gravity: c. 0,30 - 0,45 g/cm3
Melting point: > 1200°C; non-combustible
Thermal conductivity: low
Sinking particles: max. 10%
MOHS hardness: c. 6
Particle size: 0 - 500 µm, specific grain sizes

Contact

Possehl Erzkontor GmbH & Co. KG
Beckergrube 38-52
23552 Lübeck

Phone:  +49 - (0) 451 - 148 0
Fax:  +49 - (0) 451 - 148 355