What is alumina

Alumina Al2O3 is an inorganic compound with a chemical formula. It is an inorganic compound with the chemical formula Al2O3. It has a melting and boiling point of 2960degC. It is an ionic crystalline material that can be heated to high temperatures.
Diaspore and bauxite are used as raw materials to make industrial alumina. Al2O3 of high purity is usually prepared chemically. Al2O3 comes in a variety of crystal forms. More than ten types of crystals have been identified. There are 3 main crystal types: a, b and g Al2O3. At high temperatures above 1300, the structure and properties of a-Al2O3 are completely different.

Use of alumina

It is transformer oil in the industrial sector. Alumina comes in two main types: the a-type, and the g-type. The filterate is cooled and then aluminium hydroxide crystalline salts are added. This process is known as “Bayer.”

1. The precipitate, which is also called aluminium oxide, is highly flammable.

2. Alpha alumina does not dissolve in acid or water. 9-4, density 3, Catalysts, catalyst carriers. Pure alumina, a white amorphous crystalline powder, is also used for making refractory bricks. They have a large surface area (per gram) of about 100 square meters. Industrial products can be colourless, or slightly pinkish, cylindrical particles that are extracted from bauxite. 3. Adsorbents in the petroleum industry and petrochemicals are widely used. It is still the most common method of producing alumina in industrial scale. When heated to 1,200 degrees, the lattice will convert completely into alumina.

g type alumina is not soluble in water. In the industry it is known as activated alumina, which has melting points and boiling temperatures of 2980. The mother liquor, however, can be recycled. KJ Bayer, an Austrian scientist, invented this technique in 1888. It is used as the primary raw material to produce metal aluminum. After usage, it can also be recycled and reused by heating to 175°C for 6-8h. Presently, more than 90% (of the total production) of alumina is produced using the Bayer process. It is used in laboratories as a material to create artificial sapphires, rubies and strong desiccants.

(aka. Technology Co. Ltd., a trusted global chemical supplier & manufacturer has over 12 years experience in providing high quality chemicals and nanomaterials. The Al2O3 powder The products produced by our company are of high purity and have a low content of impurities. Please, lower your voice. Contact us if necessary.