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[Chemical Knowledge]：What are the upstream raw materials for alumina? What do the downstream products contain?

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Alumina plays an important role in the field of chemical production raw materials, and its upstream and downstream related products are numerous. The upstream and downstream associated products of alumina will be described in detail below.

upstream products

1. Bauxite: The main raw material of alumina is bauxite, which is an ore rich in alumina minerals. Bauxite is processed by crushing, grinding, separation and other processes to obtain raw materials for the production of alumina.
2. Caustic soda: The alumina production process requires the use of caustic soda as a reactant. Caustic soda reacts with alumina in bauxite to produce sodium aluminate, which can be further processed to obtain alumina.
3. Fuel: A large amount of energy is consumed in the process of alumina production, such as coal, natural gas and other fuels, which are used to provide the heat required for high-temperature calcination and other processes.

downstream products

1. electrolytic aluminum: alumina is the main raw material of electrolytic aluminum. By electrolyzing an alumina molten cryolite solution, metallic aluminum and oxygen can be obtained. Electrolytic aluminum is widely used in construction, transportation, aviation, packaging and other fields.
2. Corundum: Corundum is a hard material made of aluminum oxide, which has the characteristics of high temperature stability, wear resistance, and corrosion resistance. It can be used in the manufacture of high-temperature furnace refractory materials, abrasives, advanced grinding tools, etc.
3. Ceramics: Alumina ceramics have the advantages of high strength, high hardness, high temperature stability, etc., and can be used to manufacture high-performance ceramic products, such as ceramic tools, ceramic bearings, etc.
4. Catalyst carrier: Alumina has good adsorption performance and catalytic activity, and can be used as a catalyst carrier for petroleum cracking, automobile exhaust purification and other fields.

In short, alumina plays an important role in the field of raw materials for chemical production, and its upstream and downstream related products are numerous and widely used in various fields.

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