The current technological challenges mean that engineers are expected to apply the available extraction in the field of extractive metallurgy.
Extraction of copper, one of the most used metals, has been practiced since ancient times around the world.
Three crucial steps, namely sulphide roasting, leaching of ores and concentrates, and electro-extraction through solvent extraction, are described here with ample details, diagrams, examples and explanations to enlighten practitioners. these techniques are widespread where copper ores are mined.
These modes of extraction are applied in operations for many non-ferrous metals from where the interest of this book which enters in the collection of Extractive Metallurgy.

Roger RUMBU, Met. Eng., PPM.