7,200 TPA Electrorefining Plant for High-Purity Cathode Copper

Core Solution at a Glance

Sichuan Precision Technology delivers a compact, high-efficiency Electrorefining Plant engineered to transform crude anode copper into premium-grade cathode copper. Leveraging the advanced Permanent Stainless Steel Cathode (PSSC) technology, our solution guarantees exceptional metal purity, operational reliability, and superior economic returns for medium-capacity production.

• Final Product: High-Purity Cathode Copper (>99.99% Cu)
• Core Technology: Permanent Stainless Steel Cathode (PSSC) Process
• Key Strength: Precision control for maximum current efficiency and product quality.
• Plant Footprint: Highly compact design at ~1,320 m².

The Heart of the Process: Precision Electrolysis

Electrorefining is an electrochemical process that purifies copper by selectively dissolving it from a crude anode and depositing it onto a pure cathode. Our plant is meticulously designed to optimize every parameter of this reaction.

Our technical design ensures:

Optimized Cell Geometry: Anodes and cathodes are spaced at a precise 100mm pitch within each cell to minimize energy consumption and short-circuiting.

Stable Electrolyte System: The electrolyte (CuSO₄-H₂SO₄) is maintained at a constant temperature of 62-65°C and continuously circulated to ensure uniform copper deposition and smooth cathode surface.

Superior Cathode Quality: The use of Permanent Stainless Steel Cathodes eliminates the variability of traditional starter sheets, resulting in consistently dense, high-purity cathode plates ideal for the market.

Advanced Electrolyte Management: The Key to Purity

The continuous removal of impurities from the circulating electrolyte is critical to achieving 99.99% purity. Our plant features a sophisticated, two-stage purification system.

(Insert Electrolyte Purification Flow Diagram here)
Image Alt Text: Flowchart of the electrolyte purification process, highlighting copper removal and impurity removal stages.

Primary Copper Recovery Stage:

A controlled stream of electrolyte is diverted to dedicated cells.

Here, copper is electro-won onto cathodes, producing saleable cathode copper while lowering the copper ion concentration under controlled conditions.

Induced Impurity Removal Stage:

The electrolyte then flows to the impurity removal cells, where trace elements like Arsenic (As) and Antimony (Sb) are co-deposited with residual copper.

This process generates a sludge known as "Black Copper Powder", which is safely collected and processed, preventing impurity buildup in the main circuit.

Designed for Efficiency & Uptime

Our electrorefining plant is engineered with a focus on robust operation and minimal downtime.

Technical Specifications & Layout

• Primary Design Parameters:
• Annual Cathode Copper Production: 7,200 Metric Tons
• Current Density: 250-330 A/m²
• Current Efficiency: >96%
• Anode Cycle: 20 days | Cathode Cycle: 10 days
• Number of Electrolytic Cells: 48 (including purification cells)

Plant Configuration:
The layout is a model of efficiency, housing the entire process within a single, streamlined building.

• Main Workshop: 66m x 12m, containing all electrolytic cells.
• Auxiliary Span: 66m x 8m, for purification and filtration equipment.
• Total Area: 1,320 m² – a compact footprint that reduces construction costs and simplifies material handling.

Why Choose Our Electrorefining Solution?

Guaranteed Purity: Achieve consistent >99.99% Cu cathode quality demanded by the most discerning markets.

Unmatched Efficiency: Our design achieves industry-leading current efficiency (>96%), directly lowering your energy cost per ton of copper.

Proven PSSC Technology: Benefit from the operational simplicity and superior cathode quality of the Permanent Stainless Steel Cathode system.

Future-Ready Design: The plant is pre-designed for the seamless future integration of a Nickel Sulfate Recovery system, turning a waste stream into revenue.