Metso Introduces Enhanced Copper Electrorefining Technology

Aug 6, 2025 - 10 months ago

Metso is introducing enhancements in copper electrorefining technology for the sustainable and cost-effective production of LME grade A copper cathodes.

Metso Introduces Enhanced Copper Electrorefining Technology — *Copper electorefining technology*

Currently, more than 80% of the world's copper is produced with electrorefining, as it gives the highest-purity metal product and the best recovery of valuable impurities. High-purity copper is indispensable for the clean energy transition, telecommunications, electronics and clean water infrastructure.

“Metso’s improved electrorefining technology enables seamless material flow. We offer not just individual machines, but also modular electrorefinery layouts and customer-specific optimized solution purification processes. For our customers, an integrated copper electrorefining process - from anodes to cathodes - ensures high-purity cathodes and safe, reliable operation throughout the plant’s lifecycle. Total cost of ownership and cathode replacement costs are minimized with machine integration, advanced digital solutions and service support. This technology is suitable for both new and existing operations,” says Noora Aro-Koivisto, Copper Electrorefinery Technology Manager at Metso.

About Metso’s electrorefining technology
Metso is a leading provider of copper electrorefining technology, with a proven track record and the industry’s widest range of solutions. The offering integrates Metso’s know-how and proven material handling technologies with advanced process control, resulting in a holistic system where all interfaces are optimized for high performance and quality.

Metso’s proprietary electrorefining equipment offering includes Outotec Tankhouse material handling equipment, such as Anode Preparation Machines, Anode Scrap Washing Machines, Cathode Stripping Machines, Cranes, and process equipment for solution purification, such as OKTOP reactors, OKTOP autoclaves, LSF and Larox PF filters, and the Outotec Acid mist capture system.

Additionally, Metso offers advanced process monitoring and control system solutions, further improving operational safety and user-friendliness. High-quality spare parts, upgrades and the support of Metso’s global service network are also part of the offering.

Source: Metso