The diffusion dialysis copper removal system is a high-efficiency sulfuric acid recovery and electrolyte purification solution designed for the hydrometallurgical copper industry. It is specifically intended for high-acid, copper-containing electrolyte generated during the copper deposition process.
The system can achieve sulfuric acid recovery rates exceeding 80% and copper ion retention above 90%, significantly reducing the consumption of caustic soda during electrolyte treatment. Recovered sulfuric acid, after reconcentration, can be returned to the original process loop for reuse, enabling resource recovery while improving economic and environmental performance.
Diffusion dialysis uses the concentration difference between the waste solution and water as the driving force. Acid molecules preferentially migrate through an anion exchange membrane under this concentration gradient, allowing for sulfuric acid enrichment and recovery.
Copper ions are selectively blocked by the membrane and remain in the electrolyte, preventing their loss with the acid stream. The recovered sulfuric acid can be reconcentrated and returned to the process loop, creating a closed-cycle system that reduces caustic soda consumption and wastewater treatment load.
• High-efficiency sulfuric acid recovery: Recovery rate exceeds 80%, enabling waste stream resource utilization
• Precise copper retention: Copper ion retention over 90%, protecting electrolyte composition
• Reduced chemical consumption: Significantly lowers caustic soda usage during electrolyte treatment
• Recyclable process: Recovered sulfuric acid, after reconcentration, is returned to the process, improving operational economy
• Energy-saving and environmentally friendly: Reduces wastewater discharge and treatment costs, enhancing environmental performance
• Continuous industrial operation: Stable operation suitable for continuous production processes
• Copper deposition process wastewater treatment: Recovers sulfuric acid from high-acid, copper-containing electrolyte
• Acidic wastewater resource recovery: Enables sulfuric acid recycling and reduces fresh acid consumption
• Hydrometallurgical and fine chemical acid solution treatment: Applicable to high-acid waste streams containing metal ions
• Chemical consumption optimization: Reduces caustic soda and other chemical use
• Industrial environmental protection and emission reduction: Lowers copper and acid discharge in wastewater
• Green production and cost control: Supports sustainable development and cost efficiency in copper refining processes
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