Bauxite has various uses:
(1) Aluminum smelting industry. Used in national defense, aviation, automobiles, electrical appliances, chemicals, daily necessities, etc.
(2) Precision casting. The bauxite clinker is processed into fine powder to form a mold and then precision cast. Used in military industry, aerospace, communications, instrumentation, machinery and medical equipment departments.
(3) Used in refractory products. High bauxite clinker has a refractoriness of up to 1780°C, strong chemical stability and good physical properties.
(4) Aluminum silicate refractory fiber. It has the advantages of light weight, high temperature resistance, good thermal stability, low thermal conductivity, small heat capacity and mechanical vibration resistance. Used in various industries such as steel, non-ferrous metallurgy, electronics, petroleum, chemical industry, aerospace, atomic energy, and national defense.
(5) Using magnesia and bauxite clinker as raw materials, adding appropriate binders, the effect is very good for castables.
(6) Manufacturing alumina cement, abrasive materials, various compounds that can be made of aluminum in the ceramic industry and the chemical industry.
Among the most important uses are: extraction of metallic aluminum in the aluminum industry, as refractory materials and abrasive materials, and as raw materials for high-alumina cement.
More than 85% of bauxite mined globally is used to produce alumina, which in turn produces metallic aluminum. 10% is used to produce alumina for non-metallic use, and the remainder is used for non-smelting bauxite applications.
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