Metso PLUS – Cu POX autoclave with OKTOP® Agitator
OKTOP 2200 autoclave agitator - up to ~15% more energy efficient compared to industry standard
Copper extraction is facing new challenges as traditional methods struggle to keep up with environmental concerns and efficiency demands. As ore compositions change due to depletion of deposits, this cutting-edge solution maximizes copper recovery. The Metso Cu POX process is a proven hydrometallurgical method for the treatment of copper sulfide concentrates at lower capacities.
Cu POX – High-efficiency leaching solution
High copper recovery
(>98.5%) for maximum yield
Environmental benefits
Lower emissions and closed-loop water recycling
Rapid reaction rates
Optimal temperature and oxygen pressure
Why Cu POX
As a standard process solution Cu POX is implemented with SX-EW facilities to produce high quality cathodes,
but Cu POX can also be utilized to refine low grade copper concentrates to produce substitute PLS for existing SX-EW plants to compensate depleting heap leaching.
Process flow: Cu POX - SX - EW
The Cu POX process follows a structured pathway to optimize copper recovery:
- Pulping and acid pretreatment – Initial concentrate preparation
- Pressure oxidation – High-temperature leaching
- Solid-liquid separation – Efficient phase separation
- Copper solvent extraction (SX) – Purification for electrowinning
- Electrowinning (EW) – High-purity copper cathode production
- End neutralization – Managing leach residues and process water
OKTOP® Autoclave unit for Cu POX
At the heart of Cu POX technology is the OKTOP® Autoclave unit. Oktop Autoclave ensures high availability offering pre-designed, compact plant footprint, reliable performance, effective metal recovery and robust proprietary equipment for a comprehensive plant unit delivery with guaranteed process performance.. This unit includes:
- Feed tank / reactor
- Autoclave
- AC Agitators with seals supply loop
- Flash tank
- Level control valve, pressure let-down valve
- Blowback tanks
- Scrubber
- Instrumentation and automation
- Autoclave Feed Pump*
- Isolation valves*
- Blast spools*
- Pressure piping*
* Third party partner
Cu POX benefits
- High copper recovery
- Closed loop process steps reducing the use of water
- Tailored integration with SX/EW plant
- Reduce investment risk, one stop shop technology provider
- Full value chain knowhow from ore to copper metal
- Guaranteed process performance
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