Iodination volatilization roasting of ferronickel alloys for selectively volatilizing iron and simultaneously obtaining nickel containing powder

Iodination volatilization roasting with I 2 was first used to separate Fe and Ni from the ferronickel alloy. Ni was obtained in powder form and Fe was converted to FeI 2 (g). I 2 could be regenerated by oxidizing FeI 2 .