High-calcium quicklime is lime made from rich deposits of high-calcium limestone containing less than 3.5% magnesium carbonate. Calcium oxide (CaO), commonly known as lime, is a widely used chemical compound. It is a white, alkaline, and crystalline solid.

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Calcium oxide is produced by heating calcium carbonate to 1100 degrees C where carbon dioxide disassociates as a gas from the calcium carbonate:

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Calcium Carbonate + Heat = Calcium Oxide + Carbon Dioxide
{CaCO3} + Heat = {CaO} + {CO2}

Calcium oxide can be utilized in a variety of applications because of its physical and chemical qualities. High-calcium quicklime provides superior chemical performance. It will deliver exceptional performance for acid-neutralization, SO2-absorption, sludge-stabilization or other industrial-alkali applications.

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At Subaan, the production of chemical lime begins with the selective mining of chemically pure CaCO3. Throughout the manufacturing process, we carefully monitor process control to produce a high-calcium quicklime that is highly reactive and has an exceptionally high particle surface area. The result is a chemical lime that will provide exceptional performance for your acid neutralization, flue-gas desulfurization, sludge stabilization or other industrial alkali applications. The unique combination of high availability CaO, high reactivity and high particle surface area means that less of Subaan’s lime will be required to “do the job”, compared with other commercially produced lime products.

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