Limestone is a sedimentary rock composed of calcite

 

 
Limestone is a sedimentary rock composed mainly of calcite. Are distributed throughout the country, while the more exposed the fine texture of the surface, mining is easy and low development cost, and easier processing and comprehensive utilization.The largest applications of limestone cement manufacturing industry. Cement manufacturing industry has a considerable advantage, since the invention of cement, cement products as the main construction material has been 180 years. Even in highly developed science and technology today, nor come up with alternatives, so invest in mill production line, for processing limestone for cement manufacturing is a good way to obtain economic benefits.
Limestone can be used in the manufacture of glass, soda ash, caustic soda, etc., iron with limestone for flux, remove gangue, slag forming material to do with lime to remove sulfur, phosphorus and other harmful impurities. In life, made of limestone burning process than pure calcium carbonate powder, used as rubber, plastic, paper, toothpaste, cosmetics, etc. as filler. Agriculture, lime sulfur mixture prepared with lime, Bordeaux mixture and other pesticides. Application of hydrated lime to the soil and soil acidity and improve soil structure, supply of plant-available calcium. Brush with lime tree trunks to protect trees. Chemical industry to use the chemical processing of limestone made of calcium chloride, calcium nitrate, calcium sulfite and calcium important, limestone-rich Xinjiang Province in China, given the huge economic value of limestone mining in recent years to develop limestone flour processing industry and achieved good economic benefits.

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