Metso Copper sulphate leaching process

Copper sulphate leaching process

Achieve effective copper recovery from secondary copper sulfides

Metso's sulphate leaching process is a sustainable and economical solution that it is especially effective on low-grade and impure copper feed materials. The process uses highly effective atmospheric leaching technology combined with world-renowned VSF solvent extraction and electrowinning technology.

Provides highly effective copper recovery from secondary copper sulfides
Produces copper as standard LME-A grade cathodes
Uses atmospheric leaching technology without fine-grinding
Lowers oxygen and lime(stone) consumption due to sulfide oxidation to elemental sulfur
Runs more economically at lower capacities than traditional processes

Ferric chloride process includes the following process steps:

Ore or concentrate repulping
Atmospheric ferric leaching
Leaching residue separation and washing
Gypsum removal and solution cooling
Copper solvent extraction
Copper electrowinning
Water balance management and bleed treatment

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