Pressure oxidation of silverbearing refractory auriferous concentrates in acidic sulfate and sulfate-iodide media

In this thesis work prevention of the formation of silver jarosite during pressure oxidation of two different refractory sulfide flotation concentrates was examined. The innovative concept investigated was the introduction of potassium iodide to the autoclave. The presence of KI in the autoclave shifts precipitation to (potassium) jarosite,...