SIMON LEWIS / SCIENCE PHOTO LIBRARY SIMON LEWIS / SCIENCE PHOTO LIBRARY
Copper production. Technician at work during industrial copper production. Copper is produced by reacting its ores with carbon or, in the case of copper sulphides, through crushing, concentration by flotation, smelting in a furnace and finally purification by electrolysis, the decomposition of a substance by applying an electric current. Copper is also found in a pure native state.
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