Hematite Processing
Hematite (α-Fe₂O₃) is weakly magnetic, requiring reverse flotation, gravity separation or WHIMS for beneficiation.
Reverse Flotation
Cationic collectors float silica gangue while starch depresses iron minerals. Produces >65% Fe concentrate with <5% SiO₂.
Gravity Separation
Spiral concentrators and shaking tables separate hematite from lighter gangue based on density difference.