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Classification of Calcium Carbonate

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Classification of Calcium Carbonate
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Classification of Calcium Carbonate

[Abstract]:
According to the different production methods of Calcium Carbonate, Calcium Carbonate can be divided into heavy Calcium Carbonate, light Calcium Carbonate, colloidal Calcium Carbonate and crystalline Calcium Carbonate.

According to the different production methods of Calcium Carbonate, Calcium Carbonate can be divided into heavy Calcium Carbonate, light Calcium Carbonate, colloidal Calcium Carbonate and crystalline Calcium Carbonate. According to the average particle size (d) of Calcium Carbonate powder, Calcium Carbonate can be divided into particle Calcium Carbonate (d>5μm), micropowder Calcium Carbonate (1μm), and ultrafine Calcium Carbonate (0.02μm). Calcium Carbonate can be divided into crystalline Calcium Carbonate and amorphous Calcium Carbonate according to whether the arrangement of atoms and ions that make up Calcium Carbonate is regular. In addition, there are Nano Calcium Carbonate and so on.

Calcium Carbonate

Heavy Calcium Carbonate (commonly known as heavy calcium) is obtained by directly crushing natural calcite, limestone, chalk, shells, etc. by mechanical methods (using a Raymond mill or other high-pressure mill).

Light Calcium Carbonate (commonly known as light calcium), also known as precipitation Calcium Carbonate, is calcined limestone and other raw materials to generate lime (the main component is calcium oxide) and carbon dioxide, and then add water to digest the lime to generate lime milk (the main component is calcium hydroxide), Then carbon dioxide is introduced to carbonize lime milk to form Calcium Carbonate precipitation, which is finally obtained by dehydration, drying and pulverization. Or first perform metathesis reaction with sodium carbonate and calcium chloride to generate Calcium Carbonate precipitate, which is then prepared by dehydration, drying and pulverization.