Who Benefits From Calcium Carbonate

CALCIUM CARBONATE

Calcium Carbonate is an important inorganic pigment that is used as a superior-grade pigment in industries such as plastics, poultry, cosmetics, paints and construction.

GOLD MINING

(RECOVERY IN CYANIDE LEACHING.)

Calcium Carbonate is used to separate the gold-silver mixture to get the pure gold bars

Milk of calcium carbonate is used in the disposal technology of the acid mine drainage of gold neutralization in a high-density sludge and this reduces treatment cost significantly.

OIL INDUSTRY

Calcium Carbonate is used to help separate the brine phase from the oil phase during production.

Recently, the mechanism of CaCO3 scale formation, as conceived by the industry, considers only the liquid brine phases. The flashing of gases from both the oil and the brine phases is critical for the CaCO3 scale formation.

Pertinent aspects of this flash process are generally ignored.

The complete mechanism of the CaCO3 must also consider the partitioning of gases (particularly CO2) between the liquid oil and brine phases during the entire gas flash process. The entire three-phase PVT behaviour (oil/ brine/gas) and associated CO2 partitioning must be considered to determine the CaCO3 scale formation in an oil field.

PAINT INDUSTRY

Calcium Carbonate is used to extend the resin or polymers because of its controlled colour and cost in the paint industry.

It has been used since time immemorial as a basic product to whitewash walls, thanks to such qualities as its resistance to rust, humidity and fire, as well as its natural whiteness and disinfecting role.

THE STEEL INDUSTRY

In the agglomeration, finely crushed limestone with a low sulphur and alkali content is used together with finelyround lime to form iron-ore sinters or pellets.

In the blast furnaces, limestone pebbles are used to help remove the hot metal impurities during the transformation of ore into pig iron.

• Pulverized quicklime is used for ladle desulfurization of the pig iron.

• In the converters or electric arc furnaces where the pig iron is processed into steel, quicklime is added, as a flux to bind impurities such as silica, phosphorus, and sulphur that would be damaging to the quality of the metal.

AGRO-FOOD

Fruit and vegetable preservation

The calcium carbonate is kept in an airtight sealed bag and kept in a room with the fruits and vegetables to absorb carbon dioxide. This helps preserves the fruits and vegetables.

ANIMAL FEED

Calcium carbonate with a high calcium content and low amount of insoluble hydrochloric compound is an essential component for feeds for poultry, pigs and cattle to help strengthen bone and egg shell. This calcium content is vital to the manufacture of many foods and food ingredients.

SUGAR REFINERY

The sugar refining industry consumes large quantities of calcium carbonate for precipitating the mineral or organic impurities that are mixed in with the sugar in the liquid extracted from the beet

GLASS MAKING

The glass industry requires calcium carbonate and dolomite that are very low in chromatic elements such as iron and are closely calibrated to fully participate in the firing section of the process.

CARPETS RUBBER AND PLASTICS

Calcium carbonate is important filler for strengthening the latex back of rugs and carpets. The rubber industry also uses calcium carbonate as filler.