Nickel Extraction from Nickel Sulfide Concentrates by Iron Addition: Ferronickel Formation Mechanism

The conventional process of nickel extraction from sulfide concentrates involves complex and costly steps, while also generating a considerable amount of sulfur dioxide. The solid-state extraction of nickel from nickel sulfide concentrates by iron addition was proposed as an alternative approach where the nickel was recovered into a ferronickel alloy in a simple process with minimal SO2 emissions. Previous works have shown that approximately 97 …