MMO Anodes for Electrowinning: Premier Solutions for Metal Extraction

The Role of MMO Anodes in Electrowinning

Electrowinning is an electrolytic process that deposits high-purity metals on a cathode by applying an external electrical current. MMO anodes, consisting of a titanium substrate coated with mixed metal oxides like ruthenium, iridium, or platinum, facilitate this process by enabling efficient oxygen evolution and metal deposition. These anodes outperform traditional lead dioxide anodes due to their lower energy consumption and cleaner operation.

Key Electrowinning Advantages

• High Efficiency: Low overpotential reduces energy consumption, enhancing cost-effectiveness in electrowinning processes.

• Long Lifespan: Durable coatings ensure service life exceeding 5 years in harsh electrowinning environments.

• Corrosion Resistance: Titanium substrate withstands acidic and chloride-rich electrolytes common in electrowinning.

• Environmental Benefits: Cleaner alternative to lead anodes, minimizing toxic waste in electrowinning operations.

Types and Configurations for Electrowinning

We tailor the anode's shape and coating composition to the specific metal and electrolyte used in the electrowinning process.

Key Electrowinning Applications

• Copper Electrowinning: Ensures uniform deposition and high purity in copper production.

• Zinc Recovery: Replaces lead anodes for energy-efficient zinc extraction.

• Nickel and Cobalt Electrowinning: Supports high current densities in chloride-rich environments.

• Precious Metal Recovery: Facilitates precise extraction of gold and silver.