Filtration Solutions for Copper Mining & Processing

Copper production involves abrasive slurries, corrosive leaching acids, and high-pressure recovery cycles. Advanced filtration is essential to maximize copper recovery rates and ensure the purity of the final cathode.

Concentrate Dewatering

Final moisture control for transport and smelting efficiency

• Process: High-pressure filtration of copper concentrate slurry after flotation
• Filtration Goal: Achieving filter cake moisture below 9% to prevent liquefaction (TML compliance) and reduce smelting energy consumption
• Solution: Heavy-duty filter press media and ceramic disc filters designed for high throughput and abrasion resistance (chalcopyrite ore)

Electrolyte Clarification in SX-EW

Ultra-clean electrolyte for high-grade copper cathodes

• Process: Polishing Pregnant Leach Solution (PLS) before electrowinning
• Requirement: Removal of suspended solids to <10 ppm to prevent cathode defects (nodules)
• Material Selection: Sintered titanium or 904L stainless steel filter elements for strong resistance to sulfuric acid environments

Smelter Off-Gas & Acid Plant Filtration

High-temperature gas cleaning and acid mist removal

• Process: Removal of calcine dust and acid aerosols from smelter emissions
• Challenge: Operating temperatures exceeding 400°C with corrosive gas composition
• Solution: Sintered metal fiber felt and porous metal tubes providing high-efficiency filtration with excellent thermal shock resistance

Tailings Dry Stacking & Water Recovery

Water reuse and environmental risk reduction

• Process: High-volume dewatering of tailings slurry
• Impact: Converts tailings into dry cake for safe stacking, reducing dam risks and enabling up to 85% water recovery

Technical Advantages for Copper Operations