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Precipitated Calcium Carbonate
Light Calcium Carbonate, also known as Light Calcium or Precipitated Calcium Carbonate (PCC for short), is made through chemical processing methods. Light calcium carbonate is mainly produced by calcining raw limestone to produce lime, then combining lime with water to produce calcium hydroxide, passing CO2 to form calcium carbonate precipitate, and finally formed by dehydration, drying, and crushing.
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Light Calcium Carbonate (PCC):
Light Calcium Carbonate, also known as Light Calcium or Precipitated Calcium Carbonate (PCC for short), is made through chemical processing methods. Light calcium carbonate is mainly produced by calcining raw limestone to produce lime, then combining lime with water to produce calcium hydroxide, passing CO2 to form calcium carbonate precipitate, and finally formed by dehydration, drying, and crushing.
Your description is correct. Here is a further overview of light calcium carbonate and heavy calcium carbonate:
● Light Calcium Carbonate is a white powder prepared by a chemical reaction with high purity and uniform particle size.
● The production process usually involves the calcination of limestone to produce calcium oxide (quicklime), and then reacting the quicklime with water to produce calcium hydroxide (slaked lime).
● When the calcium hydroxide solution is passed through carbon dioxide gas, a chemical reaction occurs to produce a calcium carbonate precipitate.
● The precipitate is filtered, washed, dried and pulverized to finally obtain a light calcium carbonate product.
● Light Calcium Carbonate has a small particle size, a large specific surface area and a high surface activity, so it is used as a filler, an additive or a functional material in many industrial applications.
Heavy Calcium Carbonate (Calcium Bicarbonate):
It is formed by grinding natural carbonates (calcite, marble, limestone, etc.) and is commonly used as a powdered inorganic filler.
● Heavy calcium carbonate is obtained by direct mechanical grinding from natural carbonate ores such as calcite, marble, and limestone.
● Heavy calcium usually has a larger particle size than light calcium carbonate, and its purity varies depending on the quality of the ore and the grinding process.
● Due to its natural origin and coarser particle size, heavy calcium carbonate usually has a cost advantage over light calcium carbonate.
● Heavy Calcium Carbonate is widely used as a filler and bulking agent in plastics, rubber, paper, coatings, inks, feed and other industries.
The main differences between the two are the preparation method, particle size, purity and application areas. The choice of which calcium carbonate to use needs to be considered based on the specific requirements of the end product and cost effectiveness.
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