Ir-Ta Oxide Coating Titanium Anode For Hydrometallurgy
Application: Hydrometallurgy
Technology: sandblasting, pickling, brushing
Grade: Gr1 Ti is the substrate and Ir-Ta is the mixed coating
Powder or not: not powder
Ti content (%): 99.6%
Shape: net, board, rod
Coating: Ir/Ta
Product Introduction
Product Description
Iridium–tantalum oxide coated titanium anodes are dimensionally stable anodes (DSA) widely used in hydrometallurgical and electrochemical metal processing industries.
The anode consists of a Grade 1 titanium substrate coated with a catalytic mixed metal oxide layer composed of:
Iridium oxide (IrO₂)
Tantalum oxide (Ta₂O₅)
This coating structure provides:
Excellent corrosion resistance
High electrochemical catalytic activity
Long operational lifetime
Stable performance in strong acidic environments
Ir-Ta MMO titanium anodes are widely used in metal electrowinning, electrorefining, and electrochemical recovery processes.
Manufacturing Technology
Production processes include:
Surface pretreatment (sandblasting, pickling, brushing)
Thermal decomposition coating process
High-temperature oxide crystallization
Typical material composition:
Titanium substrate purity: ≥ 99.6% (Gr1 Titanium)
Coating type: Iridium–Tantalum mixed metal oxide
Available shapes:
Mesh
Plate
Rod
Customized geometries
Product Advantages
Excellent corrosion resistance in acidic electrolytes
High electrical conductivity
Strong electrocatalytic performance
Stable dimensional structure
Long service life
High current efficiency
Low energy consumption
Application Industries
Hydrometallurgy & Metal Recovery
Copper Refining (Electrowinning)
Used in acidic copper ion electrolyte solutions
Provides stable current conduction
Resistant to highly corrosive environments
Zinc Electrowinning
Used in zinc sulfate electrolysis systems
Supports efficient zinc metal deposition on cathodes
Gold & Silver Recovery
Used in precious metal recovery from ore leach solutions
Provides stable electrochemical performance in acidic conditions
Nickel Electrowinning
Used in nickel sulfate solution refining processes
Improves metal recovery efficiency
Technical Characteristics
| Parameter | Specification |
|---|---|
| Substrate | Gr1 Titanium |
| Coating | Ir-Ta Mixed Metal Oxide |
| Titanium Purity | ≥ 99.6% |
| Shape | Mesh / Plate / Rod |
| Manufacturing Technology | Sandblasting, Pickling, Brushing + Thermal Coating |
Advantages
Compared with traditional electrodes:
Higher corrosion resistance than lead-based electrodes
Longer lifetime than conventional MMO coatings
Better performance in high acidity electrolytes
Lower maintenance cost
These properties make Ir-Ta titanium anodes ideal for industrial-scale electrochemical metal recovery.
Global Industrial Applications
Mining hydrometallurgy
Metal electrorefining
Precious metal recovery
Electrochemical synthesis
Supplier Capability
Advanced coating technology ensures:
Uniform catalytic coating thickness
Strong coating adhesion
Stable electrochemical performance
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