Beskriuwing
Vermiculite is in natuerlik anorganysk silikaatmineraal, produsearre troch in bepaalde hoemannichte granitenhydrataasje (meastentiids produsearre tagelyk mei asbest), yn 'e foarm fan mica. De wichtichste produsearjende lannen fan vermiculite binne Sina, Ruslân, Súd-Afrika, de Feriene Steaten, ensfh Vermiculite kin wurde ferdield yn vermiculite flakes en útwreide vermiculite neffens it poadium, en ek kin wurde ferdield yn gouden vermiculite, sulveren vermiculite, en milky wyt vermiculite neffens de kleur. Nei calcination op hege temperatuer kin it folume fan rau vermiculite rap útwreidzje troch 6 oant 20 kear.
The expanded vermiculite has a layered structure and a specific gravity of 60-180kg/m3. It has strong insulation and good electrical insulation properties, with a maximum usage temperature of 1100°C. Expanded vermiculite is widely used in industries such as insulation materials, fire-resistant materials, seedling cultivation, flower planting, tree planting, friction materials, sealing materials, electrical insulation materials, coatings, plates, paints, rubber, refractory materials, hard water softeners, smelting, construction, shipbuilding, chemistry, etc...
Gearstallings
SiO2 (%) |
Al2O3(%) |
Heech(%) |
MgO(%) |
Fe2o3(%) |
S(%) |
C(%) |
40-50 |
20-30 |
0-2 |
1-5 |
5-15 |
<0.05 |
<0.5 |
Grutte
0.5-1mm, 1-3mm, 2-4mm, 3-6mm, 4-8mm,
20-40mesh, 40-60mesh, 60-80mesh, 200mesh, 325mesh, of as fersyk.
Oanfraach
Pakket
Levering Port
Xingang Port of Qingdao Port, Sina.