Bauxite actually refers to the ore that can be used in industry, with gibbsite, boehmite or diaspore as the main minerals. Its application fields include metal and non-metal.
Bauxite is the best raw material for the production of metallic aluminum, and it is also the most important application field. Its consumption accounts for more than 90% of the world's total bauxite output.
The non-metallic uses of bauxite are mainly used as raw materials for refractory materials, abrasive materials, chemicals and high alumina cement. Although the proportion of bauxite in non-metallic consumption is small, it has a wide range of uses. For example: chemical products such as sulfate, trihydrate and aluminum chloride can be used in papermaking, water purification, ceramics and petroleum refining; activated alumina can be used as a catalyst, catalyst carrier and catalyst carrier 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 in organic synthesis applications such as dyes, rubber, medicine, and petroleum; glass composition has 3%-5% Al2O3 It can improve the melting point, viscosity, and strength; abrasive materials are the main raw materials for high-grade grinding wheels and polishing powder; refractory materials are indispensable materials for furnace construction in industrial sectors.
Aluminum is the second most important metal in the world after steel. In 1995, the world's per capita consumption reached 3.29kg. Because aluminum has a small specific gravity, good electrical and thermal conductivity, easy machining and many other excellent properties, it is widely used in various sectors of the national economy. At present, the largest aluminum consumption in the world is in the construction, transportation and packaging sectors, accounting for more than 60% of total aluminum consumption. Aluminum is an indispensable raw material for the electrical industry, aircraft manufacturing industry, machinery industry and civil appliances.