company news about Production Of White Fused Alumina

White fused alumina is a high-purity, synthetic abrasive material made from aluminum oxide. It is commonly used in applications such as grinding, polishing, sandblasting, and cutting tools. The production of white fused alumina involves several steps:

1. Bauxite Mining: The first step in the production of white fused alumina is the extraction of bauxite, which is the raw material used to produce aluminum. Bauxite is typically mined in open-pit mines and then transported to alumina refineries.

2. Alumina Refining: In the alumina refinery, bauxite is crushed and mixed with caustic soda to produce a slurry. The slurry is then heated and pressurized in a series of digesters to dissolve the alumina in the bauxite. The resulting solution is then cooled and filtered to remove impurities, leaving a white, powdery substance called alumina.

3. Melting: The alumina is then melted in an electric arc furnace at temperatures of around 2000°C. During the melting process, impurities are burned off, resulting in a high-purity, white molten material.

4. Cooling and Solidification: The molten alumina is then poured into molds and allowed to cool and solidify. As it cools, the material crystallizes, forming small grains of white fused alumina.

5. Crushing and Screening: The cooled and solidified white fused alumina is then crushed and screened to produce different grades of the material. The size and shape of the grains can be controlled by adjusting the parameters of the crushing and screening processes.

6. Packaging and Shipping: The final step in the production of white fused alumina is packaging and shipping. The material is typically packaged in bags or drums and transported to customers or distributors.