Pb Sb Anode

Introduction to Pb Sb Anode Plate

Materials of the Blade	Pb Sb Anode Plate
Main Ingredient	Lead (Pb): 90% – 92%; Antimony (Sb): 8% – 10%
Effective Plate Area	2 Square Meters
Application for	Copper EW or ER
Service Life under Normal Conditions	5-8 Years

High Hardness & Stable Structural Performance

Antimony is added into lead with mature engineering design. This matched proportion optimizes the material internal microstructure, making the finished anode much harder, stronger in tensile resistance and less prone to permanent deformation than pure lead sheets.

Our PRS Pb-Sb anode plates are processed through combined hot rolling and cold rolling procedures. Precision shaping and calibration remove inner pores and structural defects inside plates. Even under long-term physical load and continuous thermal impact during electrolysis, the plates stay flat and resist bending effectively.

Practical structural strengths

• Stable overall dimensions: Antimony ingredients slow down plate deformation under weight load, keeping the anode intact and flat throughout its whole service cycle.
• Higher tensile strength: The alloy structure withstands knocks and stress during handling, installation and actual operation without cracking or bending out of shape.
• Strong anti-creep property: Won't slowly deform under long-term constant load, a necessary feature for anodes bearing heavy loads inside electrolytic cells.

Reliable Acid Corrosion Resistance

Anodes for copper electrowinning run nonstop inside sulfuric acid electrolyte (conventional concentration: 150 ~ 200 g/L). When working in sulfate acid environments, our Pb-Sb anodes will naturally form a compact, conductive PbO₂ protective film on the surface.

This self-generated protective film brings tangible benefits to your production:

• Long service lifespan: Under standard copper electrowinning working conditions, our anodes can work steadily for 4 to 5 years. Fewer replacements directly cut your daily operating expenses.
• Low corrosion speed: The dense oxide layer isolates the base alloy from acid erosion, keeping the anode performance stable from first use to retirement.
• Lower impurity in cathode copper: Less lead dissolves into electrolyte thanks to the stable oxide coating, helping you produce high-purity cathode copper smoothly.

Our product corrosion resistance has been verified in high-concentration acid copper electrolysis scenarios. The alloy maintains stable oxygen evolution potential, helping your electrolysis system run in an energy-saving state. Mass practical tests prove the protective film forms stably, protecting substrates while supporting efficient oxygen precipitation reaction.

Stable & Efficient Electrical Conductivity

Smooth power transmission determines the operating efficiency of electrowinning workshops, and our Pb-Sb anodes are well-designed for steady conductivity.

1. The copper hanging beam is connected via integrated metallurgical welding. The joint features seamless bonding with low electric resistance; separation and bulging will never occur during operation to guarantee stable electric contact.
2. Even alloy distribution across the whole plate ensures uniform current output for each cathode, preventing local overheating and making copper precipitation quality consistent.
3. Actual industry tests confirm Pb-Sb alloy delivers better inherent conductivity compared with Pb-Ag, Pb-Sr and Pb-Sn alloy materials.

To sum up: Pb-Sb alloy anodes balance solid structural strength, good acid resistance and steady conductivity perfectly. Developed specially for copper electrowinning and refining processes, they extend service life, reduce lead pollution risks and support long-term, power-saving & stable electrolysis work.

Note: When applied to copper electrowinning, Pb-Ca-Sn anodes can cut sludge output by up to 40% versus traditional Pb-Sb anodes, lowering your daily maintenance costs. For zinc electrolysis projects, Pb-Ag anodes (silver content 0.5%~1%) are the mainstream choice, owing to their outstanding anti-corrosion performance inside zinc sulfate electrolyte. 

Order Guidance & Technical Support

How to place an order

1. Submit your technical requirements Tell us your usage scenario (copper electrowinning or electrolytic refining), required plate size, antimony content, purchase quantity and other personalized demands.
2. Obtain quotation & design drawings Our technical team will issue detailed quotations and customized construction drawings for your confirmation.
3. Mass production & strict quality control We carry out full-process quality inspection during production, and feed back production progress to you regularly.
4. Global delivery & installation assistance We arrange international shipping services, and supply professional installation guidance according to your actual needs.

 

Full-cycle technical service

• Pre-sales stage: Custom scheme design, parameter matching and project feasibility evaluation
• Production stage: Real-time progress notification, complete quality inspection documents provision
• After-sales stage: Field installation guidance, system commissioning support and long-term follow-up technical service

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