Baoji Ruihenghua Titanium Metal Composite New Materials Co., Ltd. is one of the leading manufacturers and suppliers of manganese dioxide coated titanium anode plate in China. If you're going to buy customized manganese dioxide coated titanium anode plate made in China, welcome to get more information from our factory. For price consultation, contact us.
Product Overview
Our Manganese Dioxide Coated Titanium Anode Plates utilize high-purity, commercially pure titanium (Grades 1 and 2; UNS R50250/R50400) that meets international standards (ASTM B265, ISO 5832-1) with a titanium purity of ≥99.6%. They feature a dual-layer composite coating structure: a TiO₂ anti-diffusion barrier base layer and a dense γ-MnO₂ electrocatalytically active surface layer. By eliminating the use of expensive precious metals such as ruthenium, iridium, and platinum, these anodes offer significantly lower initial procurement costs compared to MMO or platinum-plated alternatives.
We support various configurations-including solid plates, expanded titanium mesh, and solid titanium rods-and offer full OEM customization for plate thickness, overall dimensions, and conductive tab structures. With over a decade of experience in the R&D and manufacturing of international-standard Ti-MnO₂ anodes, we supply products in bulk to small and medium-sized PCB manufacturers, industrial wastewater oxidation facilities, and hydrometallurgical enterprises across Southeast Asia, Europe, and the Americas.
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 |
TiO₂ anti-permeation barrier layer + γ-MnO₂ (manganese dioxide) active layer |
| Coating Thickness |
6–12 μm (uniform, dense catalytic layer); customizable |
| Compatible Waste Liquid Types |
Low-impurity acidic cupric chloride PCB etching waste, acidic sulfate wastewater, low-chloride industrial oxidizing wastewater |
| Operating Current Density Range |
100–1800 A/m² (moderate, stable current load) |
| Continuous Operating Temperature |
40–60°C |
| Operating PH Range |
0.8–4 (weakly acidic to strongly acidic; compatible only with acidic systems) |
| Rated Service Life |
1–2.5 years 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 |
No precious metal raw materials; very low procurement cost; moderate resistance to chloride ion corrosion; titanium substrate can be recoated; cost-effective choice for copper recovery from small-to-medium PCB operations |
| Compatible Cathodes |
316L (UNS S31603) stainless steel cathode plate; LDX2101 (UNS S32101) duplex stainless steel cathode plate |
Core Product Advantages
01.
Precious-metal-free γ-MnO₂ composite coating with outstanding cost advantages: The coating utilizes only common chemical raw materials-titanium dioxide and manganese dioxide-and contains no expensive precious metals such as ruthenium, iridium, or platinum. The initial procurement cost is significantly lower than that of Ru-Ti or Ir-Ta MMO, lead dioxide, or platinum-plated anodes, drastically reducing costs for small-scale PCB operations. Initial equipment investment for waste liquid regeneration projects; optimized dual-layer gradient coating process resolves issues such as the tendency of single-layer manganese dioxide to flake off or passivate rapidly, resulting in a coating that is uniform, dense, and strongly adherent.
02.
Recyclable titanium substrate leads to lower comprehensive lifecycle O&M costs. During long-term operation, only the surface MnO₂ coating deactivates; the intact Grade 1/Grade 2 titanium substrate can be professionally sandblasted to remove the old coating and repeatedly re-sintered with a new standard TiO₂-γ-MnO₂ composite catalytic layer, eliminating the need to scrap and replace the entire anode. For small-scale PCB waste liquid treatment projects, total investment in equipment procurement and maintenance can be reduced by over 60% within three years of commissioning.
Application Scenarios
This titanium-based manganese dioxide anode plate is a cost-effective, noble-metal-free inert electrode designed for closed-loop waste liquid recovery in small-to-medium-sized PCB acidic etching workshops. It is widely used in low-cost wet electrolytic recovery processes, such as electrolytic copper extraction from low-impurity acidic cupric chloride etching waste, oxidation of low-chloride acidic industrial wastewater, and metal electrowinning in sulfate systems. When paired with UNS S31603 (316L) or UNS S32101 (LDX2101) stainless steel permanent cathode plates, it forms a complete zero-discharge electrolytic copper recovery system. This setup simultaneously recovers high-purity cathode copper and regenerates acidic etching solution, significantly reducing upfront equipment investment for small PCB factories and enhancing resource recycling efficiency.
Product Details
Multi-stage pretreatment + dual-layer gradient thermal decomposition MnO₂ coating process: Multiple surface treatments-including degreasing, sandblasting, and acid pickling activation-increase the surface area and adhesion strength for the coating. A manganese salt precursor slurry is applied uniformly, followed by staged gradient high-temperature sintering (420–520°C). This process first forms a TiO₂ barrier base layer, then creates a dense γ-MnO₂ active surface layer. The resulting coating structure is tight and resistant to flaking, offering moderate resistance to chloride ion erosion. 2. Rigorous Factory-Floor Performance Testing: Every finished MnO₂-coated titanium anode undergoes four critical tests: coating adhesion (peel test), accelerated corrosion simulation in low-chloride acidic environments, oxygen evolution overpotential measurement, and continuous current stability. All metrics comply with global industry standards for copper recovery electrodes used in low-impurity acidic etching solutions for small and medium-sized PCB facilities.
Product Qualifications and Credentials
We specialize in manufacturing international-standard inert Ti-MnO₂ (manganese dioxide) titanium anodes, backed by comprehensive production qualifications and an in-house laboratory dedicated to coating performance testing. All MnO₂-coated titanium anodes designed for copper recovery from etching solutions are manufactured in accordance with HG/T2471-2007, ASTM B265, and ISO 5832-1 standards. We support third-party authoritative testing (e.g., SGS, ISO) for materials and coatings and provide complete documentation, including original titanium material certificates (MTC), coating composition reports, and full factory qualification records. Our products meet EU REACH environmental standards and are suitable for procurement by small and medium-sized electronics manufacturing waste-recovery plants worldwide.
Logistics and After-Sales Service
Packaging And Shipping
We utilize reinforced solid-wood protective frames and double-layer anti-scratch foam packaging to provide comprehensive protection for the uniform MnO₂ catalytic coating, ensuring resistance to scratches, oxidation, and damage during long-distance ocean transport. Standard specifications are available from stock for delivery within 3–5 business days; custom orders-covering thickness, shape, coating thickness, and conductive tab structure-support expedited OEM production. We offer reliable global delivery via sea, air, and international express services.
After-Sales Support
We provide one-stop, free pre-sales technical consultation, including matching electrodes to specific operating conditions (low-chloride/pH levels in acidic etching waste), selecting titanium substrate grades, optimizing MnO₂ coating thickness, customizing electrode dimensions (OEM), and providing guidance on compatibility with electrolytic cells and stainless-steel cathodes. We also offer professional long-term services for stripping and recoating used Ti-MnO₂ anodes. Free replacements are provided for any verified manufacturing defects in the original coating, ensuring zero-risk procurement for small and medium-sized PCB waste-recovery facilities worldwide.
Frequently Asked Questions
Q1: What are the key differences between MnO₂ anodes, Ru-Ti MMO, Ir-Ta MMO, PbO₂ anodes, and platinum-plated anodes for PCB copper recovery?
A1: MnO₂ anodes are low-cost electrodes containing no precious metals; they are suitable for acidic etching waste with low impurity and chloride levels, offer a moderate service life, and help minimize equipment budgets for small-scale projects. Ru-Ti MMO anodes are compatible with high-chloride acidic etching solutions and feature a lower chlorine evolution potential. Ir-Ta MMO anodes are suitable for alkaline and micro-etching waste, offering excellent alkali resistance. PbO₂ anodes withstand very high currents and handle high-flow waste streams. Platinum-plated anodes offer ultra-high purity and inertness, making them ideal for high-precision PCB electroplating without impurity leaching.
Q2: Can the titanium substrate be reused after the MnO₂ catalytic coating fails?
A2: Yes. Once the surface catalytic coating degrades or deactivates, the intact titanium plate can undergo professional stripping of the old MnO₂ layer, followed by the re-sintering of a new standard TiO₂-γ-MnO₂ composite layer; this saves over 60% of the cost compared to purchasing a brand-new anode.
Q3: Can electrode dimensions, mesh types, and MnO₂ coating thickness be customized?
A3: Yes, full OEM customization is available. Anode thickness, length/width, mesh specifications, MnO₂ coating thickness, and the welding position of conductive tabs can all be adjusted to match the internal dimensions of the customer's electrolytic cell.
Company News
For over a decade, our factory has specialized in the R&D and Manganese Dioxide Coated Titanium Anode Plates designed for recovering low-impurity acidic etching waste from small and medium-sized PCB operations. We continuously optimize our dual-layer gradient high-temperature sintering coating process to enhance coating density, acid resistance, and long-term stability against passivation. Our products are widely exported to small and medium-sized PCB manufacturing and wastewater recovery plants across Southeast Asia, Europe, and the Americas, and we have established long-term, stable strategic partnerships with dozens of regional electronics industry groups.
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