Extension Hill Iron Ore Project


Atalaya Mining


Mt Gibson Ranges, Western Australia


10 Mtpa


Optimisation Study

DRA's scope includes the review and optimisation of the flowsheet and plant layout, major equipment sizing and capital and operating cost development to a 15% Class 3 accuracy.

The Process Plant consists of the following unit operations:

  • Gyratory primary crushing;
  • Coarse ore Storage;
  • Secondary cone crushing;
  • High Pressure Grinding Rolls (HPGR);
  • Primary and secondary ball milling;
  • Regrind milling;
  • Magnetic separation of magnetite for silicates;
  • Thickening of tailings prior to pumping to TSF; and
  • Thickening of concentrate, pumping 300 km to port and filtration prior to ship loading.