High silica (also known as quartz, silica, silica, silicone soft soil, amorphous silica, Tripoli, powder, quartz). A SiO2 ore containing pure natural particulate silica powder. No brittle plasticity, the powder is not hydrophilic, strong acid resistance, differential thermal analysis of typical quartz the differential thermal curve, refractoriness 1750 ~ 1832 degrees. For ceramics, porcelain, glazed tile, fine ceramics, glass, paint, rubber filler and refractory materials, and can be used as fine abrasive, polishing material and precision casting sand. Silica 98.87%, ferric oxide 0.04%, two aluminum oxide 0.67%. three
Silica is our country begin to realize and a new non metallic mineral found in early 80s. It is a relatively high degree of diagenesis, fine particles, containing siliceous argillaceous rock, a certain amount of calcium magnesium, after weathering and leaching, leaching of calcium magnesium is, very fine quartz and clay minerals are preserved down, thus forming a large porous siliceous rocks. It is in alpha, microcrystalline cryptocrystalline quartz, clay minerals as powder or lump, porous siliceous industrial mineral aggregates.
Is not the same. Kaolin three two aluminum oxide content is relatively high, high silica silica content is relatively high.The content of three oxidation and two aluminum in kaolin is 22-28%.
