Products Description
The chlor-alkali industry is one of the most mature and important application fields for titanium anodes. Ruthenium-Iridium coated titanium anodes offer excellent chlorine evolution performance, low energy consumption, outstanding corrosion resistance, and long service life. They are widely used in membrane caustic soda production, brine electrolysis, chlorate production, and other chlor-alkali electrolysis processes.
Ehisen supplies high-performance Ru-Ir coated titanium anodes manufactured with premium Grade 1 titanium substrates and advanced precious metal coating technology. Our anodes help reduce cell voltage, improve current efficiency, extend service life, and ensure stable and efficient electrolysis operations.
Key Feature
✅ Excellent chlorine evolution activity, reducing cell voltage
✅ High current efficiency for energy savings
✅ Excellent resistance to chlorine and concentrated brine
✅ Strong coating adhesion and long service life
✅ Dimensionally stable with minimal maintenance
✅ Custom sizes and structures available
Products Specifications
| Item | Renovated Atdartment |
| Substrate | Grade 1 |
| Coating | Ru-Ir Mixed Metal Oxide |
| Current Density | 1000 A/m² |
| Operating Temperature | ≤90°C |
| Electrolyte | Saturated Brine |
| Coating Thickness | Customized |
| Anode Shape | as required by customer.Products geometric cage,single -pole multi-plate anode group or other forms. |
| Service Life | 3–8 Years Depending on Conditions |
| Reinforced specific gravity /mg | 0 or less | |
| Polarizability /mv | 40 | |
| Chlorine evolution potential /v | < 1.131 | |
| Test Conditions | 1mol/L H2 SO4 |
Advantages over Graphite Anodes in the Chlor-Alkali
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Lower Cell Voltage, Reduced Energy Consumption
Ru-Ir anodes feature a very low chlorine evolution overpotential, significantly reducing operating cell voltage. Compared with graphite anodes, cell voltage can typically be reduced by 0.2–0.5V, resulting in substantial energy savings.
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Higher Current Efficiency
The highly active catalytic coating promotes selective chlorine evolution, increasing chlorine production efficiency and improving current utilization while minimizing side reactions.
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Dimensionally Stable and Non-Consumable
Graphite anodes gradually wear away during electrolysis, causing dimensional changes and performance deterioration. In contrast, Ru-Ir titanium anodes remain dimensionally stable throughout their service life.
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Longer Service Life
High-quality Ru-Ir anodes typically offer a service life of 3–8 years or more, whereas graphite anodes require frequent replacement, resulting in increased downtime and maintenance costs.
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Higher Product Purity
Graphite particles may detach from graphite anodes during operation, contaminating the electrolyte and final products. Ru-Ir anodes eliminate this issue, helping achieve higher-purity caustic soda and chlorine products.
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Lower Maintenance Costs
With their long lifespan, dimensional stability, and low failure rate, Ru-Ir anodes significantly reduce maintenance frequency and replacement costs, lowering overall operating expenses
FAQ
Q: Why is a Ru-Ir coating preferred in chlor-alkali applications?
A: The Ru-Ir mixed metal oxide coating offers excellent chlorine evolution activity, low overpotential, and outstanding resistance to chlorine corrosion, making it ideal for concentrated brine electrolysis.
Q: What is the service life of a Ru-Ir titanium anode?
A: Typically 3–8 years, depending on current density, brine quality, operating temperature, shutdown frequency, and maintenance practices.
Q: Can Ru-Ir titanium anodes replace graphite anodes?
A: Yes. Ru-Ir titanium anodes have become the standard anode material in modern chlor-alkali plants due to their lower energy consumption, longer lifespan, higher efficiency, and cleaner operation.
Q: Can Ehisen provide customized titanium anodes?
A: Yes. Ehisen provides customized titanium anodes according to customer drawings, specifications, and operating conditions, along with professional technical support.
Our Service
Customized Solutions
With extensive experience in titanium anode design and manufacturing, we provide customized solutions based on customer drawings, technical specifications, or operating conditions.
Professional Technical Support
Our experienced engineering team offers professional guidance on anode selection, coating systems, current density, electrolyte compatibility, and system optimization to help improve efficiency and reduce operating costs.
Free Sample Support
To help customers evaluate product performance, we can provide sample support for testing and verification before bulk orders, subject to project requirements.
Competitive Pricing
Supported by an efficient production system, strict cost management, and a stable raw material supply chain, we offer competitive pricing without compromising product quality.
On-Time Delivery
We understand the importance of delivery schedules. With well-organized production planning and sufficient manufacturing capacity, we ensure orders are completed and shipped on time to support your project timelines.
Reliable Quality Assurance
From raw material sourcing to final inspection, every production stage is strictly controlled. All products undergo dimensional inspection, coating quality checks, and performance testing to ensure compliance with customer specifications and industry standards.
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