Calcium Oxide is obtained by burning limestone, a sedimentary rock that consists mostly of calcium carbonate (CaCO3), to a high temperature when the carbon dioxide (CO2) gas is released. This burning process is called calcination. Our lime production burns limestone at 900? Celsius for 18 hours in a closed system, obtaining 1.5 to 4-inch white lumps consisting of 85% or more CaO and some magnesium oxide (MgO) and ferric oxide (Fe2O3). Being alkaline (pH 12.2), they react violently with water releasing a large amount of heat. At the end of the reaction, only a few small cores are left.

The composition of calcined limestones–such as available CaO, MgO, Fe2O3, SiO2, moisture content and the remaining number of small cores after reaction with water, reactivity, and particle size–vary depending on raw material, burning fuel, and burning procedure and technique.

We deliver lime for the following sizes: medium-sized (1.5-4 inches), small-sized (0.1-10.1 millimeters), and finely-ground (100-170 mesh). The small-sized and finely-ground lime products are obtained from grinding medium-sized lime particles in a grinder to the desired size. All products are either put into packages or transferred directly to transport vehicles that deliver them to customers, branded as ‘Rhinoceros’.

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