Low Sodium White Fused Alumina

Low sodium white fused alumina using low-sodium alumina raw materials, by the sodium removal process in the before and during arc furnace smelting process, the sodium(Na2O) content of low-sodium white fused alumina is reduced to less than 0.1%, improving the white fused alumina melting point, density, bulk density, modulus of rupture(MOR), compressive strength, chemical stability and hardness. It can meet the needs of special high-grade refractory materials, specific ceramic application, and precision abrasives industries, etc.

$800.00$1,000.00 / MT

Low Sodium White Fused Alumina Product Details

ItemTypical valueGuarantee value
Bulk density(g/cm3)3.55 min
Micro size availableF240~F1500, JIS240~JIS4000#,P240~P2500
Abrasive grits size availableF24~F220
Refractory grain size available0-1, 1-3, 3-5mm, 200mesh, 325mesh

Low Sodium White Fused Alumina Production Process

  1. Raw materials: Using the high-grade low-sodium Bayer industrial alumina powder
  2. Mixing: mix low-sodium alumina raw materials with boric acid, ammonium chloride, aluminium fluoride and other additives, strictly by the formula ratio,
  3. Grinding: Add the mixed raw materials to a ceramic ball mill and grind for 2-4 hours
  4. Electric melting: Put the prepared mixed raw materials into the electric furnace, proceed high-temperature smelting during the temperature is strictly controlled at 2100℃-2300℃ degrees Celsius, the duration is 1-2 hours
  5. Cooling: Let the molten white fused alumina fully cool down, and use a specialised container to avoid contamination.
  6. Crushing: use a specialised crushing production line for processing, crushing and screening
  7. Washing: use the pure water from the water filtration workshop to wash or acid-pickling the semi-finished products to remove impurities, and finally dry
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