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wollastonite powder
wollastonite
As calcic metasilcate mineral, is a new kind of industrial raw mineral materials. 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. Some wollastonite can be used as finishing material of building or compound of white cement.
1. 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(mm//mm℃) |
6.5×10-6 |
Melting point( ℃ ) |
1450 |
Hardness(Moh's) |
4.5-5 |
Sedimentation value(ml/200m) |
40-90 |
3.Main applications of wollastonite
| Metallurgy | Friction material |
| Welding | Construction |
| Ceramics | Rubber |
| Paints | Plastic |
| Coating | Electronics |
Loading quantity:20-25MT/20GP
Packing materail:Pp bag,25kg/bag,50kg/bag,1MT/bag.(with or without pallet)
Since 2008, Shijiazhuang Mining Imp &Exp Trade Co., Ltd stands out in the production of non-metallic minerals, such as vermiculite, sepiolite, brucite fiber, lava stone, wollastonite, natural zeolite and perlite etc with the brand name of S.W.T
Produced with unique technology, S.W.T products are designed to satisfy customers’ various demand of excellent materials applied for industry, construction, agriculture, horticulture and also for water treatment.
With development of all these years, S.W.T and OEM Service from our SJZM group has gained good reputation from customers in worldwide. We are aiming to supply quality raw mineral materials for our customer and making their products safe, green, and economical.
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