The lead electrolytic refining machine produces high-purity cathode lead and residual anodes coated with anode slime. The cathode lead is washed, melted, refined, and cast into lead ingots. A portion of the cathode lead is used to create starter sheets. Residual anodes are stripped of anode slime, remelted, and recast into new anodes. The anode slime is filtered and further processed to recover valuable metals (e.g., Bi, Au, Ag).
Lead refining can be performed via pyrometallurgical or electrolytic methods. Electrolytic refining is generally preferred due to its higher productivity, ease of mechanization/automation, and ability to produce high-purity lead in a single step.
Lead Electrolytic Refining Process Flow
The process typically includes anode preparation, cathode preparation, electrolysis, electrolyte preparation, electrolyte purification, and anode slime treatment.
1. Raw Material Preparation
Lead-containing materials (e.g., lead sludge, lead-laden wastewater, lead ore, recycled lead products, lead-containing slag) are pretreated (filtered, dried, etc.) to remove impurities and ensure product purity.
2. Electrolytic Cell Design
The electrolytic cell, a critical component, consists of cathodes, anodes, electrolyte, and cell walls.
3. Electrolysis Process
Pretreated lead-containing materials are loaded into the cell. Under an applied current, lead from the anode dissolves into the electrolyte and deposits onto the cathode as pure lead.
4. Product Separation
Post-electrolysis, the products (cathode lead and anode slime) are separated via filtration and drying.
5. Wastewater Treatment
Lead-contaminated wastewater generated during refining undergoes treatment to remove harmful substances, ensuring compliance with environmental standards.
6. Slag Treatment
Lead-containing slag is processed to extract residual valuable metals (e.g., Cu, Sn), minimizing resource waste.
Raw Material&Final Product
Raw Materials: Lead sludge, lead-laden wastewater, lead ore, recycled lead products, lead-containing slag.
Final Product: Refined lead (lead ingots).
Equipment Advantages
1. High Efficiency
Short processing cycles and rapid production.
2. Simplicity
Streamlined process, ideal for bismuth-rich crude lead, yielding high-purity lead in one step.
3. High Metal Recovery
Excellent direct recovery of lead and efficient recovery of Au, Ag, Bi, and other valuable metals.
4. Eco-Friendly
Integrated wastewater treatment ensures compliance with environmental regulations.
5. Low Cost
Minimal energy consumption and operational expenses.
Supporting Equipment
Electrolytic Cell
The lead electrolytic cell is a core component of lead production. It enables the electrolytic separation of lead by dissolving the lead anode into ions, which migrate through the electrolyte to the cathode and are reduced to metallic lead, facilitating lead production and recycling.
Technical Parameter
Our Services
Production Flow Diagram
Complimentary provision of production flow diagrams and installation foundation drawings for buyer-required equipment.
Site Layout
Free adjustment services for layout plans during the entire operational process, provided upon buyer request.
Installation Training
During installation and trial operation, our engineers will be dispatched on-site for equipment installation, commissioning, and necessary operational training.
Sample Testing
According to the customer's raw materials, test and send the final sample product. come out testing report to help clients analyze the project.
Accessories Supply
A list of wear-prone and consumable parts is provided. Spare parts are sold at factory prices when purchased directly from Guanma Machinery.
Technical Upgrade Support
Technical updates for equipment are available throughout the production cycle. If clients request upgrades, only material costs will be charged.
Contact Us
Please specify your requirement by referring to the following aspects:
1-What type of precious metal do you want to extract?
2-How many tons raw material do you want to process per kg?
3-When will you want to start this project?
4-How is your budget of machine?
5-Which point that you really focus on?(We have customized service for each client)
