Kaolin is a non-metallic mineral, a clay clay rock dominated by kaolinite clay minerals. Because it is white delicate, it is also called dolomite. It is named after Gaoling Village, Jingde Town, Jiangxi Province. Anshan Talc Powder

Its pure kaolin is white, delicate, soft, has good plasticity fire resistance. Its mineral composition is mainly composed of kaolinite, halloysite, hydromica, illite, montmorillonite quartz, feldspar other minerals. Kaolin is widely used. It is mainly used in papermaking, ceramics refractory materials, followed by coatings, rubber fillers, enamel glazes white cement raw materials. A small amount is used in plastics, paints, pigments, abrasive wheels, pencils, daily cosmetics, soap, Pesticide, medicine, textile, petroleum, chemical, building materials, national defense other industrial sectors.

Kaolinite minerals are composed of kaolinite cluster minerals such as kaolinite, dikasite, perlite, halloysite, the main mineral component is kaolinite.

The chemical formula of kaolinite is 2SiO2 · Al2O3 · 2H2O, its theoretical chemical composition is 46.54% SiO2, 39.5% Al2O3, 13.96% H2O. Kaolinite minerals are 1: 1 layered silicates, the crystals are mainly composed of silicon-oxygen tetrahedron sodium hydroxide octahedron, in which silicon-oxygen tetrahedrons are connected in a two-dimensional direction to form a hexagonal arrangement in a manner of sharing an apex angle. The grid layer, each of the silicon oxygen tetrahedron unused apex oxygen is facing to one side; the silicon oxygen tetrahedron layer the oxygen octahedron layer common silicon oxygen tetrahedron layer of the spire oxygen form a 1: 1 type unit layer.