Our high purity raw lime stones are crushed and deliver to our Plant for further processing.
The crushed lime stones will then to be delivered to our vertical double-shaft kilns. Under the heating at nearly 1050 degree Celsius, the raw lime stones will undergo a thermal decomposition process whereby Carbon Dioxide is released and captured for further production. Quicklime will be produced. Quicklime can be further pulverised to the required fineness and sizes specified by our customers.
Calcium Carbonate + Heat →Calcium Oxide + Carbon Dioxide
CaCO3+ Heat →CaO + CO 2 ↑
Our Quicklime can be slaked when we mix it to water at correct ratio to produce Hydrated Lime in a slaker.
Calcium Oxide + Water→Calcium Hydroxide
CaO + H 2 O→Ca (OH)2
Precipitated Calcium Carbonate is produced when Carbon Dioxide is combined to Calcium Hydroxide
Calcium Hydroxide + Carbon Dioxide→Calcium Carbonate
Ca(OH)2+ CO2→CaCO3↓+ H2O
At this stage, Calcium Carbonate is insoluble and it precipitated out, resulting in very high purity 99 percent Precipitated Calcium Carbonate.
Further grounding or pulverisation can refine the Precipitated Calcium Carbonate to Nano scale at less than 100nm.