1.10) Using Resources - EXAM QUESTIONS Flashcards
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copper is extracted from metal ores
‘d’ copper can be extracted from low-grade ores by bioleaching
Describe what is meant by bioleaching (2 MARKS)
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Bacteria are used to convert copper compounds in the ore into soluble compounds, separating the copper from the ore in the process.
The leachate contains copper ions which can be extracted by electrolysis or displacement with more reactive metal e.g scrap iron
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