What is the difference between white fused alumina and brown fused alumina?

September 29, 2021
        Nowadays, white fused alumina and brown fused alumina have become one of the most commonly used abrasives, and they play a very important role in our lives and industries. However, there are still many people who don't understand which white fused alumina and brown fused alumina are good. How to choose? The following is an analysis for everyone:
   1. The price is different
  The price of white fused alumina and brown fused alumina is a topic that customers are most concerned about. The price of white fused alumina is generally about 5,000 yuan while the price of brown fused alumina is about 2,500, which is twice the difference;
   2. Different production processes
   white fused alumina is mainly made of alumina powder as the main raw material. It is made after cooling at a high temperature of more than 2000 degrees, and is made by crushing, magnetic separation, iron removal, and sieving into various particle sizes.
      brown fused alumina  is made of bauxite and anthracite as the main raw materials by smelting at a high temperature above 2000 degrees in an electric arc, and is made by self-mill powder, magnetic separation and iron removal, and sieved into various particle sizes;
  3. Different indicators
    The bulk density of brown fused alumina is 1.53-1.99g/cm3,
    While the bulk density of white fused alumina is 1.75-1.95g/cm3. 
  4. Different chemical composition
  A grade brown fused alumina:
      AL203%≥94.5%, Fe2O3%≤0.3, SiO2≤1.5%, TiO2≤3.0%, 
     white fused alumina 
     Al2O3%≥99, Na2O≤0.4%, SiO2≤0.1%,