Magnesite
Magnesia
Magnesia (MgO) is produced from magnesite by calcination (roasting to high temperatures in a kiln) to remove carbon dioxide.
There are three main types of magnesia:
- Calcinated Magnesia (CCM), produced at 1,000°C;
- Deadburned Magnesia (DBM), produced at 2,000°C
- Electrofused Magnesia (EFM), produced at 3,000°C.
Deadburned Magnesia (DBM) and Electrofused Magnesia (EFM) are used mainly in the refractory industry to line furnaces and are therefore an essential raw material for the production of steel, cement and glass.
Magnesia has one of the highest melting points of all minerals (2,800°C), is nonreactive at high temperatures and is an alkali.
CCM is used as a chemical in a number of markets including: agriculture (fertiliser and feedstock), nickel, copper and cobalt, pulp and paper, waster and water treatment.
Magnesite Core
