company news about Brown Fused Alumina Manufacturing Process

Brown fused alumina (BFA) is a popular abrasive material that is made from high-quality bauxite raw materials. The manufacturing process of BFA typically involves the following steps:

1. Bauxite mining: Bauxite is mined from large deposits around the world. It is a naturally occurring mineral that is rich in aluminum oxide.

2. Crushing and grinding: The bauxite ore is then crushed and ground into a fine powder. This process is necessary to prepare the bauxite for the next step.

3. Mixing: The powdered bauxite is mixed with a small amount of iron oxide and coke (carbon) in a large rotary kiln. The iron oxide and coke act as a catalyst, helping to reduce the temperature needed for the chemical reaction.

4. Fusion: The mixture is then heated to a temperature of around 2,000°C, causing the bauxite to melt and fuse together. This process is known as smelting.

5. Cooling and crushing: The molten BFA is then poured into molds and allowed to cool and solidify. Once it has solidified, the BFA is removed from the molds and crushed into the desired size and shape.

6. Magnetic separation: The crushed BFA is then passed through a magnetic separator to remove any iron or other magnetic impurities that may have been introduced during the smelting process.

7. Sieving: The final step in the manufacturing process involves sieving the BFA to ensure that it meets the desired size and particle distribution specifications.