What is Aluminous Soil Bauxite?
Bauxite, also known as bauxite or bauxite, is mainly composed of alumina, which is hydrated alumina containing magazines, and is an earthy mineral. White or off-white, brownish yellow or light red due to iron content, density 3.45g/cm3, hardness 1-3, opaque, brittle, extremely difficult to melt, insoluble in water, soluble in sulfuric acid, sodium hydroxide solution, mainly Used for smelting aluminum and making refractory materials.
The definition of bauxite is not uniform enough, which is related to the resource situation and industrial needs of various countries. The names of the various periods are also inconsistent, but they are basically the same. In China, it is generally believed that: “Bauxite refers to the ore with a high aluminum content (above 40%), the aluminum-silicon ratio is greater than 2.5, and the value less than this value is called clay ore or bauxite shale or aluminous rock.” . The proven bauxite deposits in China account for about 98% of the country’s total reserves.
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