Baoji Ruihenghua Titanium Metal Composite New Materials Co., Ltd. is one of the leading manufacturers and suppliers of titanium anodes for copper recovery from etching solutions in China. If you're going to buy customized titanium anodes for copper recovery from etching solutions made in China, welcome to get more information from our factory. For price consultation, contact us.
Product Overview
Our titanium anodes for copper recovery from etching solutions take commercially pure Grade 1 (UNS R50250) and Grade 2 (UNS R50400) titanium as base materials and fully conform to global standards including ASTM B265 and ISO 5832-1. They are professionally designed to reclaim electrolytic copper from acidic cupric chloride etching waste, alkaline ammoniacal etching solutions and high-chloride micro-etch wastewater. We offer two standard mixed metal oxide (MMO) coatings widely used in the industry: Ruthenium-Iridium (Ru-Ir) mixed oxide coatings for acidic cupric chloride systems, and Iridium-Tantalum (Ir-Ta) mixed oxide coatings for alkaline and high-chloride micro-etching baths. The Grade 1/Grade 2 titanium substrate naturally forms a self-healing passivation layer, offering excellent corrosion resistance in harsh environments involving acidic, alkaline, and high-chloride etching waste-far outperforming consumable anodes like graphite or lead alloys (which are prone to heavy metal leaching and sludge generation).The MMO catalytic coating lowers overpotential for chlorine and oxygen evolution, achieving a copper recovery current efficiency of 92%–95% and reducing energy consumption by 15%–30% compared to traditional electrodes.
Available in three standard configurations-solid plates, expanded titanium mesh, and solid titanium rods-these anodes offer fully customizable OEM options for thickness, dimensions, and conductive tab structures. The electrolysis process involves no metal ion leaching, yields cathode copper with ≥99.9% purity, and causes no secondary pollution. Once the catalytic coating deactivates, the intact Grade 1/Grade 2 titanium substrate can be refurbished via sandblasting and recoated, thereby lowering total lifecycle operating costs; the service life ranges from 1 to 3 years under continuous 24-hour operation. With over a decade of experience in R&D and manufacturing titanium anodes for copper recovery, we supply products in bulk to PCB manufacturers, electronic waste recyclers, and hydrometallurgical enterprises across Southeast Asia, Europe, the Americas, Africa, and Latin America. Key Product Focus: Copper-recovering titanium anodes for etching waste; DSA inert MMO titanium anodes; Grade 1/Grade 2 (UNS R50250/UNS R50400) titanium substrates; Ruthenium-Iridium/Iridium-Tantalum coated electrodes; Titanium anodes for PCB waste electrowinning.
Product Parameters
|
Parameter Item |
International Standard Specifications |
| Titanium Substrate Grades (UNS) | Grade 1 (UNS R50250) & Grade 2 (UNS R50400); Standards: ASTM B265, ISO 5832-1 |
| Optional MMO Catalytic Coatings | 1. RuO₂-IrO₂ Mixed Oxide: For acidic cupric chloride etching waste;2. IrO₂-Ta₂O₅ Mixed Oxide: For alkaline ammonia-based & high-chloride micro-etching waste |
| Compatible Industrial Waste | PCB acidic etching solutions, alkaline ammonia etching solutions, high-chloride micro-etching wastewater |
| Operating Current Density | 100–500 A/m² (adjustable based on coating grade) |
| Continuous Operating Temperature | 40–60°C |
| Rated Service Life | 1–3 years (under continuous electrolysis conditions) |
| Electrode Shapes | Solid titanium plates, expanded titanium mesh, solid titanium rods; full OEM customization available |
| Recovered Cathode Copper Purity | ≥99.9% (high-purity electrolytic copper) |
| Current Efficiency | 92%–95%; low cell voltage, energy-saving and consumption-reducing |
| Core Unique Features | Grade 1/Grade 2 titanium substrates allow for refurbishment and recoating; no heavy metal contamination of the electrolyte |
| Compatible Cathodes | 316L (UNS S31603) stainless steel cathode plates; LDX2101 (UNS S32101) duplex stainless steel cathode plates |
Core Product Advantages
Two Major Global MMO Coating Grades Covering All Etching Waste Liquid Systems
Ruthenium-Iridium oxide coating is the global standard for acidic cupric chloride etching waste, featuring low chlorine evolution potential and high catalytic activity; Iridium-Tantalum oxide coating offers superior resistance to passivation and is widely used in overseas micro-etching and alkaline ammonia etching lines. Together, these two coatings cover all mainstream PCB copper recovery production lines.
Low-Overpotential Precious Metal Catalytic Coating Ensures High Efficiency, Energy Savings, And Increased Copper Recovery Yields
Engineered with mixed metal oxide catalytic layers, our anodes minimize anodic reaction overpotential and total electrolytic cell voltage. This optimizes copper ion precipitation speed and purification efficiency, greatly lowering the unit power cost of copper recovery and improving the energy-saving performance of PCB wastewater treatment processes.
Recyclable Grade 1/Grade 2 Titanium Substrates Ensure Lower Total Lifecycle Costs
The high-purity titanium base maintains stable structural performance after prolonged operation, with only the surface catalytic layer failing. Worn anodes can be regenerated through coating removal and re-sintering, eliminating frequent full anode replacement. Compared with disposable graphite and lead anode products, our titanium anodes slash the comprehensive investment of copper recovery projects by over 60% in three years.
Application Scenarios
These titanium anodes for copper recovery from etching solutions serve as the global standard inert electrodes for closed-loop copper extraction from PCB etching waste. They are widely used in wet electrolytic recovery processes, including copper extraction from acidic cupric chloride etching waste, copper recovery and regeneration from alkaline ammonia etching solutions, copper removal from high-chloride micro-etching waste, and heavy metal resource recovery in electronics plants. When paired with UNS S31603 (316L) or UNS S32101 (LDX2101) stainless steel permanent cathode plates to form a complete electrolytic copper recovery system, they achieve zero discharge of hazardous heavy metal waste while simultaneously recovering high-purity cathode copper and regenerating recyclable etching solutions, drastically reducing hazardous waste disposal costs for PCB plants.
Product Details
Original Grade 1/Grade 2 Titanium Coils (ASTM/ISO Compliant)
These coils strictly adhere to ASTM B265, ISO 5832-1, and UNS R50250/R50400 specifications. With a titanium purity of ≥99.6%, they offer consistent mechanical and corrosion-resistant properties, maintaining structural integrity even after thousands of continuous electrolysis cycles in mixed acid-chloride waste solutions.
Multi-stage Pre-treatment & Segmented High-Temperature Sintering (International Standard MMO Coating Process)
Surfaces undergo multiple rounds of sandblasting and acid pickling for activation. Precious metal oxide slurry is applied uniformly, followed by segmented, gradient high-temperature sintering. This creates a dense, highly adhesive, and long-lasting catalytic coating that resists peeling and chloride-ion erosion.
Comprehensive Factory Performance Testing
Every finished DSA titanium anode undergoes four key tests-coating adhesion, accelerated acid-chloride corrosion simulation, anode overpotential, and current efficiency-ensuring compliance with global industry standards for copper recovery electrodes in PCB etching processes.
Product Qualification Certification
We specialize in manufacturing international-standard DSA MMO inert titanium anodes, holding full production qualifications and operating an independent laboratory for coating performance testing. All Grade 1/Grade 2 titanium anodes designed for copper recovery from etching solutions are manufactured according to HG/T2471-2007, ASTM B265, and ISO 5832-1 standards. We support independent third-party testing (e.g., SGS, ISO) for materials and coatings and provide complete documentation, including original titanium material certificates (MTC), coating performance reports, and full factory qualification records. Our products meet EU REACH industrial environmental standards and are suitable for procurement by global electronics manufacturing waste recovery facilities.
Logistics and After-Sales Service
Packaging And Shipping
Reinforced solid-wood protective frames combined with double-layer anti-scratch foam packaging protect the delicate MMO catalytic coating, preventing scratches or oxidation during long-distance ocean transport. Standard specifications are available from stock for rapid delivery; customized orders-covering thickness, shape, coating area, and conductive tab structure-support expedited OEM production. We offer comprehensive global logistics coverage via sea freight, air freight, and international express delivery.
After-Sales Support
Comprehensive free pre-sales technical services: matching specifications to waste liquid conditions, selecting titanium substrate grades and MMO coatings, OEM dimensional customization, and guidance on matching anodes to electrolytic cells and stainless steel cathodes. Long-term recoating services for used anodes are available. Free replacement for manufacturing defects in original coatings; zero-risk procurement for overseas PCB recycling projects.
Frequently Asked Questions
Q1: How do I distinguish between Ruthenium-Iridium and Iridium-Tantalum coatings?
A1: Most PCB etching solution recovery projects use Grade 2 titanium (UNS R50400) due to its optimal cost-performance ratio; Grade 1 titanium (UNS R50250) offers higher ductility, making it suitable for producing ultra-thin expanded mesh electrodes. Ruthenium-Iridium coatings are used for acidic cupric chloride etching waste; Iridium-Tantalum coatings are used for alkaline ammonia and high-chloride micro-etching waste, offering superior resistance to chloride passivation.
Q2: What is the difference in service life between DSA titanium anodes and graphite anodes?
A2: Graphite anodes fail within 3–6 months and generate significant sludge waste; our Grade 1/Grade 2 DSA MMO titanium anodes provide stable, continuous operation for 1–3 years without generating sludge or contaminating the electrolyte, resulting in lower overall maintenance costs for labor and consumables.
Q3: Can the Grade 1/Grade 2 titanium substrate be reused after the catalytic coating fails?
A3: Yes. We offer professional recoating services for used titanium substrates; by removing the spent coating and sintering a new standard MMO layer, customers can save over 60% compared to the cost of purchasing new anodes.
Q4: Is customization available for anode plate/mesh dimensions and current collector tab welding positions?
A4: Yes, full OEM customization is supported; anode thickness, dimensions, mesh patterns, and tab welding positions can all be adjusted to fit the internal dimensions of the customer's electrolytic cell.
Company Updates
For over a decade, our company has specialized in the R&D and manufacturing of Grade 1/Grade 2 DSA MMO titanium anodes-meeting international standards-specifically designed for PCB etching waste solution recovery. We continuously optimize our multi-stage high-temperature sintering coating process to enhance coating adhesion and long-term resistance to chloride ion corrosion. Our titanium anodes for etching waste recovery are widely exported to PCB manufacturing and waste recycling facilities across Southeast Asia, Europe, the Americas, Africa, and Latin America, and we have established long-term, stable strategic partnerships with dozens of international electronics industry groups.
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