A mining project in Iran recently faced challenges involving a gold leaching and zinc powder replacement system. The customer used gold leaching followed by a press filter for tailings treatment and then zinc powder replacement for gold recovery. However, the recovery rate remained low, raising concerns.
Identifying the Problem
After technical review, the issue became clear:
Zinc powder replacement systems require extremely clean pregnant solution.
Only heap leaching and pit leaching can provide this level of clarity.
Full-mud leaching, as used by this customer, produces solutions that are not clean enough for zinc replacement.
This mismatch made the system unsuitable for their current leaching process.
Recommended Solution: Activated Carbon + Desorption & Electrolysis
Instead of zinc powder replacement, the more effective approach is:
Introduce activated carbon during leaching to absorb dissolved gold.
Desorption and electrolysis process:
Separate gold from activated carbon.
Recover gold at a purity of up to 99.99%.
Reuse activated carbon in the next cycle, making the process cost-efficient.
Benefits of the Activated Carbon System
Higher Recovery Rate compared to zinc replacement.
Cost-Efficient Recycling since active carbon is reusable.
Proven Technology with successful track records worldwide.
Dasen Mining Machinery Expertise
With over 30 years of gold ore recovery experience, Dasen Mining Machinery has completed numerous gold processing projects abroad. We offer proven desorption and electrolysis plants that deliver higher recovery rates and long-term efficiency.
If you are exploring solutions for optimizing gold ore recovery, we welcome your inquiry.
Whatsapp:+86 133 1927 7356
Email:Desen@oremagnetic.com