- 40R - Alumino Silicate Fireclay
- 60R - Sillimanite / Andalusite
- 70R - Sintered Mullite
- 72R - Fused-cast Mullite
- ZM - Zirconia Mullite

Alumino Silicate Fireclay
Alumina-based secondary raw material obtained from used sintered refractory linings from furnaces or thermal plants.
Made from alumino-silicates, with a 40% Al2O3 content, and generally assimilated as fireclay.
Additional information
- Powder density : 2,15 T/m3
- Standard grain size : 0-1 mm / 1-3 mm / 3-6 mm (for specific requests, please contact us)
Typical chemical analysis
Al2O3 % |
SiO2 % |
ZrO2 % |
TiO2 % |
|
VAL 40R ALUMINO SILICATE FIRECLAY |
37 | 60 | - | 1 |
Non contractual document, subject to change. Typical values.

Sillimanite / Andalusite
Alumina-based secondary raw material obtained from used sintered refractory linings from furnaces or thermal plants.
Made from sillimanites/andalusites, with a 60% Al2O3 content.
Additional information
- Powder density : 2,6 T/m3
- Standard grain size : 0-1 mm / 1-3 mm / 3-6 mm (for specific requests, please contact us)
Typical chemical analysis
Al2O3 % |
SiO2 % |
ZrO2 % |
TiO2 % |
|
VAL 60R SILLIMANITE / ADALUSITE |
60 | 35 | - | 0,3 |
Non contractual document, subject to change. Typical values.

Sintered Mullite
Alumina-based secondary raw material obtained from used sintered refractory linings from furnaces or thermal plants.
Made from sintered mullite, with a 70% Al2O3 content.
Additional information
- Powder density : 2,55 T/m3
- Standard grain size : 0-1 mm / 1-3 mm / 3-6 mm (for specific requests, please contact us)
Typical chemical analysis
Al2O3 % |
SiO2 % |
ZrO2 % |
TiO2 % |
|
VAL 70R SINTERED MULLITE |
70 | 24 | - | 0,1 |
Non contractual document, subject to change. Typical values.

Fused-cast Mullite
Alumina-based secondary raw material obtained from used sintered refractory linings from furnaces or thermal plants.
Made from fused-cast mullite, with over 75% Al2O3 content.
Additional information
- Powder density : 2,7 T/m3
- Standard grain size : 0-1 mm / 1-3 mm / 3-6 mm (for specific requests, please contact us)
Typical chemical analysis
Al2O3 % |
SiO2 % |
ZrO2 % |
TiO2 % |
|
VAL 72R FUSED-CAST MULLITE |
75 | 24 | - | 0,1 |
Non contractual document, subject to change. Typical values.

Zirconia Mullite
Alumina-based secondary raw material obtained from used sintered refractory linings from furnaces or thermal plants.
Made from Zirconia Mullite, with an 11% ZrO2 content.
Additional information
- Powder density : 2,8 T/m3
- Standard grain size : 0-1 mm / 1-3 mm / 3-6 mm (for specific requests, please contact us)
Typical chemical analysis
Al2O3 % |
SiO2 % |
ZrO2 % |
TiO2 % |
|
VAL ZM ZIRCONIA MULLITE |
75 | 13 | 11 | 0,1 |
Non contractual document, subject to change. Typical values.