Iron Powder Pelleting

Bentonite is commonly used in pelletting of iron ore. Bentonite plays an important role in using degradable iron ores with low grades upon pelleting.

The features desired in iron ore pellets acquired with the use of 0.8% bentonite are as follows:

  • Dry compressive strength at 100 °C – min 5.5kg/cm2
  • Dry compressive strength at 400 °C – min 20kg/cm2
  • Burning compressive strength at 1000 °C – min 75kg/cm2
  • Burning compressive strength at 1200 °C – min 200kg/cm2
  • Wet compressive strength at 1-1,5 kg/cm2