Baoji Ruihenghua Titanium Metal Composite New Materials Co., Ltd. is one of the leading manufacturers and suppliers of iridium tantalum mmo titanium anode plate in China. If you're going to buy customized iridium tantalum mmo titanium anode plate made in China, welcome to get more information from our factory. For price consultation, contact us.
Product Overview
Our factory's Iridium Tantalum MMO Titanium Anode Plates are custom-engineered for copper recovery via electrolysis from PCB alkaline ammonia-based etchants, high-chloride micro-etching waste, and mixed acid-alkali copper-bearing wastewater. The substrates utilize globally standard Grade 1 (UNS R50250) and Grade 2 (UNS R50400) high-purity titanium, strictly adhering to ASTM B265 and ISO 5832-1 international industrial standards, with a titanium purity of ≥99.6%.
Unlike ruthenium-iridium (Ru-Ir) MMO anodes (suited for acidic chloride baths) or lead dioxide anodes (for high-current applications), our Ir-Ta mixed metal oxide coating offers superior resistance to alkalis, chloride ion passivation, and interference from organic additives. It maintains low oxygen evolution overpotential and stable catalytic activity over the long term in complex etching waste streams across a wide pH range (1–12). It effectively resolves common issues-such as rapid coating deactivation and soaring cell voltage-found in other anodes operating in alkaline or high-hydrogen-peroxide micro-etching environments, ensuring stable cell voltage and lower power consumption during continuous, long-cycle operations.
No metal ions leach from the titanium substrate during electrolysis, ensuring recovered cathode copper purity of ≥99.9% without introducing secondary heavy metal contamination to the electrolyte. Once the surface Ir-Ta catalytic coating loses activity, the intact Grade 1/Grade 2 titanium substrate can be stripped of the old coating via sandblasting and recoated for reuse, significantly reducing long-term procurement costs; the anodes offer a stable service life of 1.5 to 3 years under continuous 24-hour etching waste recovery conditions.
We support various configurations, including solid plates, expanded titanium mesh, and solid titanium rods; plate thickness, overall dimensions, and conductive tab structures can be fully customized (OEM). With over a decade of experience in the R&D and manufacturing of international-standard Ir-Ta MMO titanium anodes, we supply products in bulk to PCB manufacturers, electronic waste recyclers, and hydrometallurgical enterprises across Southeast Asia, Europe, the Americas, Africa, and Latin America.
Product Parameters
|
Parameter Item |
International Standard Specifications |
| Titanium Substrate Grade (UNS) |
Grade 1 Titanium (UNS R50250) / Grade 2 Titanium (UNS R50400); Standards: ASTM B265, ISO 5832-1; Titanium purity ≥99.6% |
| MMO Catalytic Coating Formula |
IrO₂-Ta₂O₅ (Iridium-Tantalum mixed metal oxide) |
| Precious Metal Loading |
15–40 g/m² (customizable upon request) |
| Coating Thickness |
8–15 μm (uniform, dense catalytic layer) |
| Compatible Waste Liquid Types |
PCB alkaline ammonia etching solution, high-chloride micro-etching waste, mixed acidic/alkaline copper-bearing wastewater |
| Operating Current Density Range | 100–3000 A/m² (stable medium-range current load) |
| Continuous Operating Temperature | 40–60°C |
| Operating PH Range |
1–12 (fully compatible from weak acid to strong alkali) |
| Rated Service Life | 1.5–3 years of stable use under continuous electrolysis conditions |
| Electrode Forms |
Solid titanium plate, expanded titanium mesh, solid titanium rod; full-size OEM customization supported |
| Recovered Cathode Copper Purity |
≥99.9% (high-purity electrolytic copper) |
| Core Unique Features |
Superior resistance to alkali and chloride-induced passivation; low oxygen evolution overpotential; recyclable/re-coatable titanium substrate; energy-saving and consumption-reducing continuous operation |
| Compatible Cathodes |
316L (UNS S31603) stainless steel cathode plate; LDX2101 (UNS S32101) duplex stainless steel cathode plate |
Core Product Advantages
01.
Specialized IrO₂-Ta₂O₅ coating tailored for PCB alkaline and micro-etching waste streams. This Iridium-Tantalum MMO coating utilizes iridium oxide as the catalytically active phase and tantalum pentoxide as the anti-corrosive binder phase; a dense, uniform surface layer with a characteristic "mud-crack" pattern is formed through staged high-temperature thermal decomposition. Compared to Ruthenium-Iridium coatings (which are suitable only for acidic chloride solutions), this coating demonstrates significant performance advantages in alkaline ammonia baths and micro-etching waste streams containing hydrogen peroxide and organic additives. It effectively inhibits coating passivation, cell voltage increases, and premature failure, ensuring consistently low power consumption during long-term mass production.
02.
Low oxygen evolution overpotential and outstanding energy-saving performance. The Ir-Ta catalytic layer reduces the oxygen evolution overpotential by 0.4–0.6V compared to lead dioxide anodes, resulting in 12–18% energy savings under continuous low-to-medium current operating conditions. It is the preferred energy-saving electrode for small- and medium-sized PCB alkaline etching and micro-etching waste stream closed-loop copper recovery lines, significantly cutting daily electricity and operational costs.
03.
Recyclable titanium substrate and lower total lifecycle costs. During long-term operation, only the surface Ir-Ta MMO coating loses activity; the intact Grade 1/Grade 2 titanium substrate can be professionally sandblasted to remove the old coating and re-sintered with a new, standard IrO₂-Ta₂O₅ catalytic layer, eliminating the need to scrap and replace the entire anode. Within three years of commissioning a PCB waste treatment project, total expenditure on equipment procurement and maintenance can be reduced by over 55%.
Application Scenarios
This Iridium Tantalum MMO Titanium Anode Plate is a specialized, energy-saving inert electrode designed for closed-loop waste stream recovery in global PCB alkaline etching and micro-etching workshops. Widely used in wet electrolytic recovery processes, such as the electrolytic copper recovery and regeneration of alkaline ammonia etching waste, copper removal from high-chloride micro-etching waste, resource recovery and regeneration of hydrogen peroxide micro-etching waste, and the treatment of mixed acidic/alkaline heavy-metal wastewater from electronics plants. When paired with permanent cathode plates made of UNS S31603 (316L) or UNS S32101 (LDX2101) stainless steel, it forms a complete zero-discharge electrolytic copper recovery system. This system simultaneously recovers high-purity cathode copper and regenerates recyclable etching solutions, significantly reducing hazardous waste disposal costs for PCB plants and enhancing resource recycling rates.
Product Details
01.
Multi-stage pretreatment and segmented gradient thermal decomposition MMO coating process. Multiple surface treatment steps-including degreasing, sandblasting, and acid pickling activation-increase the surface area and adhesion for the coating. A mixed iridium-tantalum (Ir-Ta) noble metal slurry is applied evenly, followed by a segmented gradient high-temperature sintering process (450–550°C) to form a dense, "mud-crack" structured catalytic coating that is uniform in thickness and resistant to alkali and chloride-ion erosion or peeling.
02.
Rigorous full-performance factory testing. Every finished Ir-Ta MMO titanium anode undergoes four key tests: coating adhesion/peel testing, accelerated corrosion simulation (alkaline/chloride environment), oxygen evolution overpotential testing, and continuous current stability testing. All indicators meet global industry standards for electrodes used in PCB alkaline and micro-etching waste copper recovery.
Product Qualifications
Our factory specializes in producing international-standard Ir-Ta MMO DSA (Dimensionally Stable Anode) inert titanium anodes. We possess comprehensive production qualifications and operate an independent laboratory for testing coating performance. All Iridium-Tantalum (Ir-Ta) MMO titanium anodes designed for copper recovery from etching solutions are manufactured in compliance with HG/T2471-2007, ASTM B265, and ISO 5832-1 standards. They support third-party authoritative testing (SGS/ISO) for materials and coatings and come with complete documentation, including the original titanium material certificate (MTC), coating precious metal content reports, and full factory qualification records. The products meet EU REACH industrial environmental standards and are suitable for procurement by electronics manufacturing waste recovery plants worldwide.
Logistics and After-Sales Service
Packaging And Shipping
Reinforced solid wood protective frames combined with double-layer anti-scratch foam inner packaging provide comprehensive protection for the uniform Ir-Ta MMO catalytic coating, preventing scratches, oxidation, or damage during long-distance ocean transport. Ample stock is available for standard specifications; expedited OEM production is supported for custom orders regarding thickness, shape, precious metal loading, and conductive tab structure. Global logistics channels-including sea freight, air freight, and international express-ensure stable delivery.
After-Sales Support
One-stop free pre-sales technical consultation: matching operating conditions (pH and composition of etching waste), selecting titanium substrate grades, customizing Ir-Ta precious metal loading, adjusting electrode dimensions (OEM), and providing guidance on compatibility with electrolytic cells and stainless steel cathodes. Long-term professional technical services are provided for stripping and recoating used Ir-Ta MMO anodes. Free replacements are offered for verified manufacturing defects in the original coating, ensuring zero-risk procurement for global PCB waste recovery operations.
Frequently Asked Questions
Q1: Can the titanium substrate be reused after the Ir-Ta catalytic coating fails?
A1: Yes. Once the surface catalytic coating deactivates, the intact titanium plate can undergo professional coating removal and be re-sintered with a brand-new, standard IrO₂-Ta₂O₅ MMO layer, saving over 55% compared to the cost of purchasing a new anode.
Q2: Can anode dimensions, mesh types, and precious metal coating loadings be customized?
A2: Full OEM customization is available. We can adjust anode thickness, length and width, mesh specifications, Ir-Ta precious metal loading, and conductive tab welding positions to match the internal dimensions of the customer's electrolytic cells.
Company Updates
For over a decade, our factory has specialized in the R&D and manufacturing of international-standard IrO₂-Ta₂O₅ (Iridium-Tantalum) MMO titanium anodes designed for PCB alkaline and micro-etching waste recovery. We continuously optimize our segmented, gradient high-temperature sintering coating process to enhance coating density, resistance to alkaline corrosion, and long-term stability against passivation. Our products are widely exported to PCB manufacturing and waste recovery facilities across Southeast Asia, Europe, and the Americas, and we have established long-term, stable strategic partnerships with dozens of international electronics industry groups.
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