Metso Copper Pressure Leaching Process

Copper Pressure Leaching Process

Get sustainable copper recovery from copper sulfides with very high copper leach extractions

The Metso copper pressure leaching process combines our highly effective pressure oxidation and leaching technology with world-renowned VSF solvent extraction and electrowinning technology. The process also enables precious metals recovery from leaching residue with cyanide leaching technology.

Recovers copper effectively from copper sulfides
Produces copper as standard LME-A grade cathodes
Offers pressure leaching technology without fine-grinding
Recovers precious metals with highly effective conventional cyanide leaching
Runs more economically at lower capacities than traditional processes
Results in environmentally stable leaching residue

Copper pressure leaching process consists of the following main steps:

Concentrate repulping
Pressure oxidation of sulfides
Hot curing
Solid-liquid separation
Neutralization
Copper solvent extraction
Copper electrowinning
Water balance management and bleed treatment

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