Copper electrorefining (ER) production line converts copper anode to LME Cu-CATH-1 copper cathode and byproduct anode slime. Metalcess develops mini scale copper ER from 1T/d copper electrorefining system with modular design/easy installation, optimizing your return on investment.
In a copper cathode production line, the
copper anode and stainless-steel cathode forming into pair are placed in the
electrolytic cell. DC current is continuously applied across the anode-cathode
pair to stimulate the anode copper dissolve into the electrolyte to get copper
ions and other soluble cations, while copper ions get electrons and deposit on
the cathode surface to get high purity copper cathode. Copper loaded cathodes
are periodically stripped. The precious metal liberated from copper anode
reports to anode slime setting down to the cell bottom. It needs to be
collected regularly to recover the precious metal.
As the electro-refining process going, the
soluble impurities dissolved form anode gets increased in the electrolyte like
As, Sb, Bi,Ni, Co and Fe, etc. The accumulated impurities negatively influence
the cathode quality. Therefore, it requires regular electrolyte purification to
remove the impurities to maintain the electro-refining process performance.Metalcess also provides electrolyte purification system suitable
for small capacity ER workshop. From the spent electrolyte, Metalcess
uses common electro-winning or cyclone electrolysis for copper removal and
membrane separation to split the diluted acid and nickel-bearing solution. The
diluted acid is reused in the ER system, while nickel-bearing solution is
processed with extraction and evaporation & crystallization to produce nickel
salts. The whole process is environmental-friendly, no spent acid and waste
water generated.
To maintain the ER production at higher efficiency
and stability, the cellhouse is usually equipped with some supporting equipment.
Metalcess has developed the machine tailored for different capacity, including
anode preparation machine, cathode stripping station, scrap anode washing and
polishing machine and short-circuit monitoring system. The machine is optimized
in core function performance and overdesign is omitted, making the equipment
suitable for the tailored capacity at higher utilization efficiency and lower
investment cost.
Metalcess further optimize the
automation control to avoid overdesign for small & medium capacity project.
The automation system keeps basic automation control points and adopts
international-brand sensor and controlling element, to ensure a stable control
system in long term basis operation.
Features:
1. Flexible production capacity from test scale to industrial-level application, stable and reliable operation secured by tailored supporting machine and electrolyte purification system, optimizing the productivity efficiency and return on investment;
2. Tailored power supply and busbar design enhance the comprehensive electrical efficiency by 5%;
3. Optimized electrolyte purification solution provides clean working environment and reduce spent acid generation;
4. Suitable automation control facilities production efficiency and equipment service lifetime.
