Word: mgco3
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Danger Up, Price Down. A radically different "carbothermic" process is being tried in the West on two other very common ores, brucite (Mg(OH)2) and magnesite (MgCO3). When either of these is baked it forms magnesium oxide, and the trick is first to vaporize this by heating it to 3,800° F. in the presence of carbon and then cool it to around 380° in 1/1000th of a second with a blast of cold gas. During the heating, the carbon takes the oxygen away from the magnesium, and during the cooling the magnesium is precipitated...
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