Calcium carbonate
Calcium carbonate or limestone is an odorless, white, grayish-white or yellowish-brown substance that is processed in the size of a piece of rock to micronized powder.
Limestone refers to any rock that is mostly composed of calcium carbonate and has the chemical composition CaCO3, of which 65% is CaO and 44% is CO2.
Classification of calcium carbonate:
Limestone is found in different forms that are classified according to origin, chemical composition, structure and geology.
Limestone is widely found all over the world and is used as a raw and essential industrial material in many industries.
Calcium carbonate can be classified in terms of processing and granulation as follows:
- Raw limestone
- Lime (calcined)
- Dead lime (hydrated)
- Micronized calcium carbonate coated calcium carbonate (coated)
Major applications of raw limestone:
- Use of lime and raw limestone as smelters in the iron and steel industry
- Used to extract bauxite during the aluminum production process
- Adding raw lime in order to obtain blast furnace pulp during iron production
- The use of calcined lime in the steel production process to maintain the slag play property
- Use of lime as a desulfurizer, water purification, wastewater purification, flue smoke purification and sludge and wastewater purification
- Use of raw lime in soil stabilization for roads, earthen dams, airports, and building foundations, etc.
- Production of mortars and plasters by combining other specific additives with lime
- Used as aggregates and concrete fillers
- Improve adhesion, reduce bitumen removal by adding lime to asphalt
- Use of limestone powder in fertilizers
- Use hydrated lime as a lubricant
- Use as a slurry coating on steel products to neutralize coke acid
- The use of micronized and coated calcium carbonate as a filler in paint, plastic, door and window profiles, pipes and …
- Using raw limestone as the most common and cheapest method of calcium supply in livestock and poultry:
- Increase the quality and quantity of milk
- Increase the growth rate of the animal
Improve bone formation and help young calves grow
- Prevent the bone loss, softness and bone fractures
- Improve egg quality and increase shell thickness
- Improve core activity
- Improve the enzymatic and hormonal function of livestock and poultry
- Disinfection of livestock and poultry litter limestone cleans and dries the animal bed and kills germs.