[China Aluminum Network] Bauxite is actually a term used to refer to the ore that consists of main minerals such as gibbsite, boehmite or diaspore. Its application areas are both metallic and non-metallic. Bauxite is the preferred raw material for production of metal aluminum, and it is also a major application field, accounting for more than 90% of the world's total bauxite output.
The non-metallic use of bauxite is mainly used as raw materials for refractory materials, abrasive materials, chemicals and high-alumina cement. The use of bauxite in non-metallic applications is small, but its use is quite extensive. For example, chemical products such as sulfate, trihydrate, and aluminum chloride can be used in papermaking, purified water, ceramics, and petroleum refining; activated alumina can be used as a catalyst, catalyst carrier, and in the chemical, oil refining, and pharmaceutical industries. Decolorization, dehydration, degassing, deacidification, drying and Other physical adsorbents; aluminum chloride produced with r-Al2O3 can be used for organic synthesis applications such as dyes, rubber, medicine, petroleum; 3% to 5% of Al2O3 in glass composition The melting point, viscosity, and strength are improved; the abrasive material is the main raw material for the high-grade grinding wheel and polishing powder; and the refractory material is an indispensable building material for the industry.
Metal aluminum is the second most important metal in the world, second only to steel. In 1995, the world’s per capita consumption reached 3.29 kg. Because aluminum has a small specific gravity, good electrical and thermal conductivity, easy machining, and many other good functions, it is widely used in various parts of the national economy. At present, the largest amount of aluminum used in the world is construction, transportation and packaging, accounting for more than 60% of total aluminum consumption. Aluminum is an indispensable raw material for the electrical appliance industry, aircraft manufacturing industry, machinery industry and civil appliances.
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