Current Developments in the Hydrometallurgical Treatment of ...
Current Developments in the Hydrometallurgical Treatment of ...
Current Developments in the Hydrometallurgical Treatment of ...
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<strong>Current</strong> <strong>Developments</strong> <strong>in</strong> <strong>the</strong> <strong>Hydrometallurgical</strong><strong>Treatment</strong> <strong>of</strong> Copper Ores and ConcentratesAutoclave and Post-Autoclave ChemistryAutoclave formation <strong>of</strong> basic ferric sulfate (22O C)‣ 2FeS 2 (s) + 7.5O 2 + H 2 O = Fe 2 (SO 4 ) 3 + H 2 SO 4‣ S + 1.5O 2 + H 2 O = H 2 SO 4‣ Fe 2 (SO 4 ) 3 + 2H 2 O = 2Fe(OH)SO 4 (s) + H 2 SO 4Post Autoclave Re-Leach <strong>of</strong> Basic Ferric Sulfate(100 C)‣ 2Fe(OH)SO 4 (s) + H 2 SO 4 = Fe 2 (SO 4 ) 3 + 2H 2 O
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