86-0311-13731115794
Xizhuang Village, Nanyanchuan Township, Lingshou County, Shijiazhuang, Hebei, China (Mainland)
Acicular Wollastonite high ratio acicular wollastonite
Features
-- As calcic metasilcate mineral, is a new kind of industrial raw mineral materials.
-- White powder and relative density is 2.8,melting point is 1554°C
-- Good insulation performance, endure acid, resist abrade, bear high temperature.
Chemical analysis
| Whiteness | SiO2 | CaO | Al2O3 | Fe2O3 | TiO2 | MgO | L.O.I |
| >80 | 49-53 | 43-45 | 0.26max | 0.35max | 0.02max | 1.3max | 1.5-3 |
The physical properties of wollastonite
| Iterm | Result |
Granularity(mesh) | 80-2500 |
Ratio of length to diameter(L/D) | 8-25 |
absorption oil value (g/100g) | 20-26 |
Whiteness(%) | >80 |
Refraction(%) | 1.63 |
Density(g/cm3) | 2.95 |
Expantion coefficient(mmhttps://mm℃) | 6.5×10-6 |
Melting point( ℃ ) | 1450 |
Hardness(Moh's) | 4.5-5 |
Sedimentation value(ml/200m) | 40-90 |
Usage
--At present, it’s mainly applied to ceramic industry, and secondly used as metallurgy protecting slag and paint.
--Further, it can be used as electrode coating, mountain cork substitute, abradant binding agent, compound of glass and stuffing of rubber, plastic, insulating material and paper.
--Be widely used in paint, plastics, rubber, electric welding, glass, electron industry, metallurgy and paper making, Friction material, Construction, Ceramics.
--Some wollastonite can be used as finishing material of building or compound of white cement.
