Calcined Alumina

وصف

Calcined alumina, as an important industrial material, has a wide range of uses and significant effects. The following are its main application areas and functions:

1. Refractory materials
Due to its extremely high melting point (2054℃), calcined alumina is widely use for refractory material and is suitable for various industrial applications in high temperature environments.

2. Analytical reagents
It can use for an analytical reagent, especially in chromatography, where it is often used as a medium.

3. Organic solvent dehydrating agent
In the chemical industry,Calcined Alumina can used as a dehydrating agent for organic solvents and can effectively remove moisture from the solvent.

4. Adsorbent
Due to its porous structure, calcined alumina can  use for adsorption and separation of various substances.

5. Organic reaction catalyst
In organic chemical reactions,Calcined Aluminacan use for catalyst to promote the progress of chemical reactions.

6. Abrasives and polishing agents
Due to its high hardness, Calcined Alumina used as an abrasive and polishing agent, suitable for fine processing of various materials.

7. Defluorinating agent for drinking water with high fluoride content
Calcined Alumina can  use for defluorination of drinking water with high fluoride content to ensure the safety of drinking water.

8. Protective layer of metallic aluminum
On the surface of metallic aluminum, the naturally formed aluminum oxide film plays a protective role to prevent further oxidation of aluminum. This oxide film can be enhanced by anodizing.

9. Oxygen production industry and electronics industry
In oxygen production industry and electronics industry, Calcined Alumina can use for gas desiccant to ensure the purity and dryness of gas.

10. Main components of ruby ​​and sapphire
The main components of ruby ​​and sapphire are aluminum oxide. Ruby contains chromium oxide and is red, while sapphire contains iron oxide and titanium oxide and is blue.

11. Purification of bauxite
In industry, bauxite is purified into alumina by the Bayer process and then converted into metallic aluminum by the Hall-Heroult process.

12. Ceramics and refractories
After fine grinding, Its powder can use for raw material for ceramics and refractories.

In summary, calcined alumina plays an important role in many industries due to its unique physical and chemical properties, ranging from basic industries to high-tech fields.