Ground Calcium Carbonate Manufacturing Process

Ground calcium carbonate, commonly referred to as GCC. Calcium carbonate is one of the most useful and versatile materials known to man.

Calcium Carbonate Uses

Calcium carbonate, as it is used for industrial purposes, is extracted by mining or quarrying. Pure calcium carbonate can be produced from marble. The primary type of industrial product is "ground calcium carbonate or GCC. GCC, as the name implies, involves crushing and processing limestone to create a powdery-like form graded by size and other properties for many different industrial and pharmaceutical applications.

• Paper, Plastics, Paints, and Coatings

Calcium carbonate is the most widely used mineral in the paper´╝îplastics, paints and coating industries both as a filler and due to its special white color - as a coating pigment. In the paper industry it is valued worldwide for its high brightness and light scattering characteristics, and is used as an inexpensive filler to make bright opaque paper.

• Personal Health and Food Production

Calcium carbonate is used widely as an effective dietary calcium supplement, antacid, phosphate binder, or base material for medicinal tablets. It also is found on many grocery store sbelves In products such as baking powder, toothpaste, dry-mix dessert mixes, dough, and wine. Calcium carbonate is the active ingredient in agricultural lime, and is used in animal feed. Calcium carbonate also benefits the environment through water and waste treatment.

• Building Materials and Construction

Calcium carbonate is used in industrial settings to neutralize acidic conditions in both soil and water. Calcium carbonate crystals are referred to as calcite. The calcite crystal generally is considered a rhombohedron because of its cleavage properties. Cleavage is what causes crystals to angle where the bonding forces are weak and are apt to break into planes. Calcite is unique in that its cleavage takes three distinct directions.

Ground Calcium Carbonate Manufacturing Process

Generally, the processing includes washing, sorting of undesirable contaminants, grinding, size classification of particles and possibly drying. The production process maintains the carbonate very close to its original state, ending up in a finely ground product delivered either in dry or slurry form (water based suspension).

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