To make full use of kaolin stones, some processing needs to be operated. On the processing, crushing machine and grinding machine are needed, such as jaw crusher, cone crusher, mtm trapezium grinder produced by SBM,.
Kaolinite is a clay mineral, part of the group of industrial minerals, with the chemical composition Al2Si2O5(OH)4. It is a layered silicate mineral, with one tetrahedral sheet linked through oxygen atoms to one octahedral sheet of alumina octahedra.Rocks that are rich in kaolinite are known as kaolin or china clay.
Kaolinite has a low shrink-swell capacity and a low cation exchange capacity (1-15 meq/100 g). It is a soft, earthy, usually white mineral (dioctahedral phyllosilicate clay), produced by the chemical weathering of aluminium silicate minerals like feldspar. In many parts of the world, it is colored pink-orange-red by iron oxide, giving it a distinct rust hue. Lighter concentrations yield white, yellow or light orange colors. Alternating layers are sometimes found, as at Providence Canyon State Park in Georgia, United States. Commercial grades of kaolin are supplied and transported as dry powder, semi-dry noodle or as liquid slurry.
Kaolin is a kind of new type rubber filler in recent years. Kaolin is widely used in ceramic, rubber, plastics, leather, cement, refractories, chemical industry and agriculture. With the further increasing of kaolin beneficiation technology, application scope of kaolin will become increasingly widespread. Coal geological system unit can proceed from the actual situation, based on kaolin resources and market demand of the coal measures. Kaolin is a nonmetal ore that exists widely in nature. In the past, it is used in the manufacture of ceramics, refractory material and the incorporation of little plastic as filler rubber. With the development of various fields of the national economy, people pay more attention to the deep processing of kaolin, because it can not only obtain new material with special properties, but also can improve the economic benefit. One of the deep processing of the boot method of kaolin, kaolin is further heating, washing and drying grinding step has been tough mind roasting, dehydration, which makes it become met kaolin, plastic cable, used as filler. In order to improve the insulation performance of the cable sheath. Organic and inorganic filler two main shoe rubber filler used, the former includes reclaimed rubber and reclaimed materials, including carbon black, titanium dioxide, calcium carbonate, magnesium carbonate, magnesium oxide, carbon black and zinc oxide powder etc.
Kaolinite is one of the most common minerals; it is mined, as kaolin, in Pakistan, in Vietnam, Brazil, Bulgaria, France, United Kingdom, Iran, Germany, India, Australia, Korea, the People's Republic of China, the Czech Republic and the United States.Kaolinite clay occurs in abundance in soils that have formed from the chemical weathering of rocks in hot, moist climates—for example in tropical rainforest areas. Comparing soils along a gradient towards progressively cooler or drier climates, the proportion of kaolinite decreases, while the proportion of other clay minerals such as illite (in cooler climates) or smectite (in drier climates) increases.
The largest use is in the production of paper, including ensuring the gloss on some grades of paper.In April 2008, the US Naval Medical Research Institute announced the successful use of a kaolinite-derived aluminosilicate nanoparticle infusion in traditional gauze, known commercially as QuikClot Combat Gauze.
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