Titanium anode for copper recovery by etching solution
Titanium anode for copper recovery by etching solution Substrate material: Gr1 titanium plate Coating material:Ir/Ta titanium anode; Ru/Ir titanium anode
Product Introduction
Ir-Ta titanium anodes are mixed metal oxide (MMO) coated titanium electrodes designed for demanding electrochemical applications, including PCB manufacturing, copper recovery, electroplating, wastewater treatment, and cathodic protection systems.
The titanium substrate is coated with a proprietary iridium-tantalum oxide (IrO₂-Ta₂O₅) catalytic layer, providing excellent corrosion resistance, low operating voltage, high electrocatalytic activity, and extended service life. These anodes perform reliably in aggressive acidic and alkaline environments and are particularly suitable for copper recovery from etching and micro-etching solutions.
Applications
PCB Industry Copper Recovery Systems
During PCB manufacturing, various copper-containing process solutions are generated, including:
Micro-etching solutions
Alkaline etching solutions
Acid etching solutions
Copper nitrate solutions
These solutions contain valuable copper resources that can be efficiently recovered through electrochemical processes using MMO-coated titanium anodes.
Recommended Coating Systems
Solution Type | Recommended Anode |
Micro-etching Solution | Ir/Ta Titanium Anode |
Alkaline Etching Solution | Ir/Ta Titanium Anode |
Acid Etching Solution | Ru/Ir Titanium Anode |
Technical Specifications
Parameter | Value |
Coating Type | IrO₂-Ta₂O₅ MMO Coating |
Substrate Material | Grade 1 Pure Titanium |
Current Density | 200–400 A/m² |
Service Life | 12–24 Months |
Operating Environment | Acidic and Alkaline Electrolytes |
Electrochemical Performance
Item | Ir/Ta Titanium Anode |
Weight Loss | ≤ 1 mg |
Polarizability | < 40 mV |
Oxygen Evolution Potential | < 1.45 V |
Test Medium | 1 mol/L H₂SO₄ |
Reference Standard: HG/T 2471-2007, Q/CLTN-2012
Typical Process Flow
Micro-Etching Solution Recovery
Micro-Etching Solution → Oxygen-Breaking Electrolysis Cell → Copper Electrowinning
Alkaline Etching Solution Recovery
Alkaline Etching Solution → Extraction Process → Copper Sulfate + Sulfuric Acid Recovery
Acid Etching Solution Recovery
Acid Etching Solution → Ion Membrane Electrolysis → Copper Deposition → Chlorine Gas Treatment
Key Advantages
Excellent Corrosion Resistance
The Ir-Ta coating provides exceptional resistance to aggressive chemical environments, ensuring long-term stable operation.
High Copper Recovery Efficiency
The catalytic coating enhances electrochemical reactions, resulting in faster copper deposition and improved recovery rates.
Long Service Life
MMO-coated titanium anodes offer significantly longer operational life compared with conventional electrode materials.
Low Maintenance Requirements
Minimal cleaning and maintenance reduce downtime and operating costs.
Environmental Benefits
The technology enables recovery of valuable copper resources while reducing heavy metal discharge and environmental pollution.
Industry Benefits
Recovery of high-purity electrolytic copper
Reduced chemical consumption
Lower wastewater treatment costs
Reduced environmental impact
Improved resource utilization
Lower overall production costs
Ir-Ta MMO titanium anodes provide an efficient, reliable, and environmentally responsible solution for copper recovery and electrochemical processing in the PCB and metal finishing industries.
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