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Iron ore reducibility – ISO 4695 – 4696-1 Combined Test Unit


Reducibility may be defined as a measure of the ease with which oxygen combined with iron can be removed from natural or processed iron ores by a reducing gas, which is expressed as the rate of reduction at an atomic ratio O/Fe = 0.9, relative to the iron (III) state. Test consists of isothermal reduction of a test portion at a specified size range in a fixed bed at a temperature of 950 °C using a reducing gas consisting of CO and N2

  • Maximum temperature: 1100 °C
  • Three heated zones over 700 mm
  • Balance to determine the loss in mass of the reduced sample with a resolution of 0.1 g connected to the retort during the entire process cycle.
  • Dual loop cascade control
  • Supplied with retort
  • Over temperature protection
  • Flame failure gas safety system