Lead dioxide titanium anode

I. What Is a Lead Dioxide-Titanium Anode?

A lead dioxide-titanium anode is an electrolytic anode with a substrate made of industrial-grade pure titanium or a titanium alloy, coated with a layer of highly active lead dioxide (PbO₂).

This anode combines the corrosion resistance of titanium with the high catalytic activity of PbO₂, enabling stable operation in acidic or oxidative electrolytic environments.

Main Applications:

Chemical electrolysis

Oxidation treatment

Electroplating and water treatment

Oxidation of chlor-alkali or organic wastewater

Its core advantage lies in its ability to operate stably over long periods at high current densities while maintaining high electrolytic efficiency and corrosion resistance.

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II. Features of Lead Dioxide-Titanium Anodes

High Electrocatalytic Activity

The PbO₂ coating possesses strong catalytic oxidation capabilities, enhancing electrolytic efficiency.

Excellent Corrosion Resistance

The titanium substrate combined with the PbO₂ coating remains stable over the long term in acidic or strongly oxidizing solutions and is resistant to peeling.

Low Energy Consumption, High Efficiency

High current efficiency allows for stable operation at medium to high current densities, reducing energy consumption.

Long Service Life

Proper use and maintenance ensure stable operation for many years, reducing replacement frequency.

Wide Range of Applications

Suitable for acidic electrolytes, organic wastewater, and various industrial oxidation processes.

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III. Comparison of Lead Dioxide-Coated Titanium Anodes and MMO Titanium Anodes

Comparison Item Lead Dioxide-Coated Titanium Anode MMO Titanium Anode

Electrocatalytic Activity High, particularly suitable for acid oxidation High, suitable for oxidation in chloride solutions

Corrosion Resistance Good acid resistance Excellent resistance to chloride corrosion

Current Density Adaptability Moderate High, suitable for high industrial currents

Service Life 1–3 years 3–8 years

Suitable Media Acidic, organic wastewater Chloride solutions, seawater, sodium hypochlorite generation

Maintenance Costs Relatively high Low; coating can be repaired

Summary: Lead dioxide-titanium anodes are suitable for small- to medium-scale acidic electrolysis or organic oxidation processes, while MMO titanium anodes are better suited for high-current, high-chloride industrial applications.

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IV. Lead Dioxide-Titanium Anode Specifications

Our lead dioxide-titanium anodes are available in a variety of specifications and can be customized to meet customer process requirements:

Parameter Range/Description

Substrate Material Titanium or titanium alloy (Gr1/Gr2)

Coating Type α-PbO₂ or β-PbO₂

Coating Thickness 10 – 50 μm (customizable)

Anode Dimensions Length: 100 – 3000 mm

Width: 50 – 500 mm

Thickness: 3 – 20 mm

Current Density 50 – 1000 A/m²

Operating Temperature ≤ 90°C

Connection Type Threaded, flanged, or custom

We offer tailored solutions based on cell dimensions, current density, and electrolyte characteristics.

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V. Precautions for Using Lead-Titanium Oxide Electrodes

Avoid Dry Burning

Applying current to the anode without liquid will damage the coating.

Maintain Uniform Electrolyte Flow

The coating is susceptible to localized high temperatures; ensure proper liquid flow.

Handle with Care

The PbO₂ coating is fragile; avoid impact during installation and maintenance.

Regular Inspection and Repair

The coating surface can be lightly repaired or recoated to extend service life.

Appropriate Current Density

Excessively high current densities will shorten the anode’s service life; use according to recommended parameters.

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VI. Applications of Lead-Titanium Dioxide Anodes

Chemical Electrolysis and Chlor-Alkali

Oxidation in Acidic Electrolytes

Chlorine production, hydrogen production, and oxide generation

Environmental Wastewater Treatment

Electrochemical oxidation of organic wastewater

Oxidation and precipitation of heavy metal wastewater

Electroplating and Surface Treatment

Metal surface oxidation treatment

Electroplating Auxiliary Anodes

Laboratory and Research Applications

Electrochemical Research

Small-Scale Oxidation Experiments

Be used in a wide range of industries.

 

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Electrolytic copper foil manufacturing industry

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Hydrometallurgy industry

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Sewage treatment industry

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Cyclone electrolysis industry

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Etching liquid electrolysis recovery industry

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Electrolytic sodium hypochlorite industry

VII. How to Select the Right Lead-Titanium Dioxide Anode?

When selecting a lead-titanium dioxide anode, it is necessary to comprehensively consider process requirements, operating environment, and budget. The following aspects are particularly critical:

Define the Application Purpose

Before proceeding with your selection, clearly understand your specific application requirements. Different processes and electrolysis needs will directly influence the type, coating, and dimensions of the anode. For example, the requirements for oxidizing organic wastewater and producing chlorine in the chlor-alkali process may be entirely different.

Analyze the Operating Environment

Since the anode will be directly exposed to the electrolyte, the chemical environment must be carefully evaluated. Key factors include:

pH Level: Acidic or alkaline environments have different effects on coating durability

Temperature: High temperatures accelerate coating degradation

Corrosive Chemicals: Such as strong oxidizing agents or chloride ion concentration

Determine Current Density Requirements

The required current density influences anode design and dimensions. It is particularly important to select anodes capable of withstanding process currents while maintaining stable electrolysis performance.

Select Appropriate Shape and Dimensions

The shape and dimensions of the anode should be matched to the electrochemical cell or battery to ensure uniform current distribution and improve electrolysis efficiency. Common shapes include:

Rod-shaped anodes

Plate-shaped anodes

Mesh or grid anodes

Verifying Coating Thickness

Coating thickness directly affects the anode’s durability and performance. Depending on the application intensity and process requirements, thicker or thinner PbO₂ coatings can be selected to achieve optimal stability.

Consider the Operating Temperature Range

The anode must operate continuously within the specified temperature range. Extreme temperatures accelerate coating degradation and shorten service life; therefore, an anode suitable for the process temperature must be selected.

Oxygen Evolution Potential Requirements

If the process is sensitive to oxygen generation, an anode with a higher oxygen evolution potential should be selected to minimize unwanted side reactions and improve electrolysis efficiency.

Expected Service Life

Evaluate anode lifespan based on operating conditions and select anodes that are durable and reliable under specific process conditions to reduce maintenance frequency and downtime costs.

Cost and Budget

Finally, balance anode performance against cost based on the project budget. Lead dioxide-titanium anodes offer good value for money in short-term projects, while MMO anodes should be considered for long-term, high-load processes to reduce maintenance costs.

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FAQ

1. What is the expected service life of the Lead Dioxide Titanium Anode?

• The anode’s service life typically ranges from 5 to 10 years, depending on operational conditions.

2. Can I order custom sizes for my applications?

• Yes, we offer customization in size, shape, and coating thickness to suit your specific needs.

3. What industries benefit from using Lead Dioxide Titanium Anodes?

• Industries such as water treatment, electroplating, metal production, and chemical processing benefit from our anodes.

4. Are these anodes compatible with all electrochemical processes?

• Our anodes are designed for a wide range of electrochemical processes, but please consult with our technical team for specific compatibility.

Contact Us

For more information or to request a quote, please reach out to us:

• Email: Jolina@bjhyti.com
• Phone: +86-18691787782