Calcium Carbonate (Feed Grade)

Brief Overview
Calcium carbonate is known by aragonite or limestone come with chemical formula CaCO3. It comprises 4% of the earth’s total crust and is found in egg shells, snails, mineral rocks, pearls, shells of marine organisms and so on. It is an odourless, tasteless powder used in health supplements, agricultural industry, for environmental applications and many more.
Manufacturing Process
Producion of the pure calcium carbonate can be from marble, or by passing carbon dioxide into a solution of calcium hydroxide. In the later case, calcium carbonate is derived from the mixture, forming a grade of product called "precipitated calcium carbonate,” or PCC. A slurry of calcium hydroxide is agitated in a pressurized reactor, and carbon dioxide is provided under pressure to the reactor to produce precipitated calcium carbonate at a high reaction rate. Carbon dioxide is utilized at a high efficiency. Solubilized calcium ions and carbonate ions react to produce a calcium carbonate precipitate. Control of process conditions such as temperature, slurry concentration, and pressure, enables production of a desired crystal habit (including sclenohedral, rhombohedral, stacked rombohedral, or aragonite crystal structures), crystal size, or crystal aspect ratio.