Method of leaching copper sulfide ore

A method of leaching copper sulfide ore includes leaching copper from copper sulfide ore using a sulfuric acid solution comprising iodide ion and iron (III) ion surplus to the iodide ion as a leaching solution; reducing iodine in a solution obtained after the leaching step to less than 1 mg/L by an activated carbon treatment; and oxidizing iron (II) ion or newly added iron (II) ion in a solution obtained after the iodine reduction step by using iron oxidizing microbes to recover iron (III) ion. IODIDE REPLACEMENT AQUEOUS SOLUTION CONTAINING IODINE COPPER LEACHING STE ACIDIC ACTIVATED CARBON AQUEOUS SOLUTION' SOLUTION TREATMENT STEP --- CONTAINING CONTAINN (IODINE RECOVERING STEP) RECOVERED IODINE EXTRACTION -IELECTROWINNING STE P - CPERCTHD -- IRON (II) 1ION SOLUTION REPLACEMENT IRON OXIDIZATI ON STEP IODIDE REPLACEMENT AQUEOUS SOLUTION CONTAINING IODINE COPPER LEACHING STEP ACIDIC ANION EXCHANGE RESIN AQUEOUS SOLUTION' SOLUTION TREATMENT STEP CONTAINING CNTAINN (IODINE RECOVERING STEP) RECOVERED IODINE EXTRACTION -,ELECTROWINNING STEP HCPE AHD [ACTIVATED CARBON AQUEOUS SOLUTION TREATMENT STEP CONTAINING (IODINE RECOVERING STEP) RECOVERED lODINE. IRON (II1) ION SOLUTION REPLACEMENT] IRON OXIDIZATION STEP FIG. 2