The Iron Removal in Marmatite Concentrate Pressure Leaching Process

To modify the pressure leaching technology of horizontal autoclave using marmatite concentrate, an appropriate increase in the pulp's residence time in the horizontal autoclave is required. This increase will provide sufficient time for leaching to be completed in the first three chambers of the horizontal autoclave. Adding zinc oxide ore and potassium sulfate in the fourth chamber of the horizontal autoclave is needed to complete preliminary neutralization and iron precipitation in the horizontal autoclave. The pilot plant experimental results of the proposed technology are satisfactory, further shortening the process of pressure leaching and improving its economic efficiency. (paper)