METHOD FOR LEACHING ZINC SILICATE ORES

摘要

In accordance with the present invention there is provided a method for leaching zinc from an ore, the method comprising the method steps of: curing the zinc silicate ore to be leached through the application of an aqueous solution of a weak acid, producing a cured ore; leaching the cured ore at atmospheric pressure through the application of an ammonium carbonate solution containing free ammonia, producing a pregnant leach solution; and passing the pregnant leach solution to a means for zinc recovery.