Sulfatizing roast
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(Redirected from Sulphatizing roast)
Converts sulfides into sulfates. The corresponding sulfates are highly water soluble and can be selectively solubilized leaving iron in the residue.
Examples:
- CuS+2O2 → CuSO4
- ZnS+2O2 → ZnSO4
- CoS+2O2 → CoSO4
