Copper Electrowinning

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Mixed metal oxide (MMO)-coated titanium anodes are being commercially implemented in copper electrowinning tankhouses worldwide.

Summarizing the economic benefits to copper electrowinning tankhouse operation with De Nora's self-protected all titanium MMO anodes will provide:

1. 12-15% power savings

2. Cobalt-free electrolyte operations

3. Minimal dendrite shorting damage incurred at the MMO-SPA anode

4. Smoother, uniform cathode deposits typically achieving a 1-2% improvement in current efficiency

5. Tankhouse operations producing lead-free copper quality cathodes, in addition to elimination of hazardous lead waste for improved operator health and environment.

De Nora’s advanced anode technology for copper electrowinning includes the latest generation energy saving electrocatalytic coating and an engineered titanium structure with the breakthrough dendrite mitigation system for protection against short circuits.  The development of a monitoring system completes the package.