Nyenzo za anode za grafiti ya bandia zimetengenezwa hasa kutoka kwa coke ya petroli yenye ubora wa juu na maudhui ya sulfuri ya chini

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Sulfide vs. Oxide Copper: Which Flowsheet Maximizes Recovery & Minimizes Cyanide Risk?


When designing a flowsheet for copper recovery, the choice between sulfide or oxide copper ores profoundly impacts both recovery efficiency and cyanide risk. Here’s how the two differ:
Sulfide copper ores (e.g., chalcopyrite, bornite) are processed primarily using flotation techniques. Sulfide ores generally exhibit higher recoveries in traditional mineral processing due to their strong response to flotation reagents. Cyanide is often not required in sulfide copper flowsheets, minimizing associated risks.
Oxide copper ores (e.g., cuprite, malachite) are typically processed via hydrometallurgical techniques like heap leaching, using sulfuric acid instead of cyanide. Cyanide may appear in secondary gold recovery circuits if gold is associated with the copper oxide ore, increasing cyanide risk.
Ultimately, sulfide ores are preferred for maximizing copper recovery while avoiding cyanide handling risks, provided the processing infrastructure is available. If infrastructure or ore type constraints exist, oxide flowsheets can still be viable but at reduced recovery efficiencies.
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