4. Natural resource processing
The treatment of natural resources involves the use of separative techniques to concentrate the magnesite contained in a mineral assemblage or in the magnesium salts present in seawater: impurities or soluble salts interfering with subsequent metallurgical processes leading to the metal or its oxide are thus largely eliminated.
4.1 Magnesite mining and mineral processing
The type of deposit determines the mining method. Massive magnesite deposits are generally quarried. Small, narrow and deep deposits, on the other hand, are mined using tunnels and underground workings.
Mined ore is rarely used in its raw form, and more often than not, mineralurgical operations are required: metallurgical treatments based solely on calcination do not...
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Natural resource processing
Magnesium metal extraction
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