Calcium carbonate is one of the most abundant minerals and is the main constituent of limestone. Most calcium carbonate occurs as limestone, however, heat and pressure can result in the metamorphic form, marble. Calcium carbonate is generally mined as limestone or marble depending on application. Its chemical impurities, size distribution and physical makeup dictate its end use.
Calcium carbonate is mined for use in the paper and paint industries as a filler and coating agent, and in plastics for extending polymers and reducing costs. It is used in the pharmaceutical and food industries as a calcium and dietary supplement, and is also used in adhesives and caulks, joint and latex carpet compounds, and flooring and roofing materials.
The production of high purity calcium carbonate requires flotation to remove contaminants such as iron, magnesium, and silica / silicates. ArrMaz high-grade cationic collectors and flocculants have been developed for this particular purpose and are custom blended for customer-specific use at each plant. ArrMaz’s technical experts will work closely with you to custom-formulate a reagent suite and flowsheet design for your specific calcium carbonate flotation process.