Automatic Gold Electrowinning Recovery Machine For Gold Ore Carbon Desorption Solution And Cyanide Leaching Liquid
Electrowinning for eluate from activated carbon desorption and for cyanide leach liquor
- Feed solutionActivated carbon desorption solution, cyanide leaching solution
- Target metalGold
- MethodElectrolytic deposition (electrowinning)
- Recovery rateOver 99%
- Gold purity extracted95-99.8%
What This Machine Does
This machine electrowins gold from the eluate produced by activated carbon desorption and from cyanide leaching solution in gold ore processing.
Gold ions in the solution are deposited as solid metal at the cathode by electrolysis.
Electrowinning recovery is over 99%, with gold of 95-99.8% purity extracted directly.
What You Get
- Gold plates out on the cathode as solid metal at the desorption plant.
- Barren solution goes below 2-10ppm gold before it returns to the circuit.
- Compact footprint suits a small or medium operation.
- No reagent consumption on top of the existing leaching chemistry.
Who Buys It
- Gold mines running carbon-in-pulp or carbon-in-leach circuits
- Elution and desorption plants handling loaded carbon
- Small and medium scale leaching operations
- Toll processors treating leach liquor for third parties
What It Fixes
- Eluate sitting in a holding tank is unrealised revenue.
- Zinc cementation consumes zinc dust and gives a cement that still needs refining.
- Small operations cannot justify a full conventional electrowinning house.
- Barren solution returned to the circuit with residual gold quietly lowers overall recovery.
How It Is Built
- Rotating titanium cylinder cathode with graphite carbon plate anodes
- High-frequency pulse electrolysis
- Full anti-corrosion design for cyanide service
- Anti-corrosion PLC control system
- Inlet valve and exhaust valve
- Exhaust fan for continuous duty
- Four sizes with customisation available
Technical Data
Every figure below is taken from the machine documentation. Where a value is not published it is left out rather than estimated.
| Model | Specification (mm) | Gold Solution Capacity | Silver Solution Capacity | Voltage | Power |
|---|---|---|---|---|---|
| AC200 | 300 x 450 x 600 | 100-150 L/day | 150-200 L/day | 220V | 300W |
| AC400 | 600 x 450 x 600 | 200-350 L/day | 300-500 L/day | 220V | 350W |
| AC600 | 900 x 450 x 600 | 300-500 L/day | 500-800 L/day | 220V | 400W |
| AC800 | 1200 x 450 x 600 | 500-800 L/day | 600-1000 L/day | 220V | 500W |
| Feed solution | Activated carbon desorption solution, cyanide leaching solution |
|---|---|
| Target metal | Gold |
| Method | Electrolytic deposition (electrowinning) |
| Recovery rate | Over 99% |
| Gold purity extracted | 95-99.8% |
| Residual gold after electrowinning | Below 2-10ppm |
| Power consumption | 150-250W |
| Cathode | Rotating titanium cylinder |
| Control | Anti-corrosion PLC panel |
Where It Is Used
- Electrowinning of gold from activated carbon desorption eluate
- Electrowinning of gold from cyanide leaching solution
- Gold recovery from mine process solution streams
- Gold and silver recovery from plating and stripping solution on the same platform
How It Compares With The Alternatives
| Zinc cementation (Merrill-Crowe) | Zinc dust consumption and a cement product that needs further refining |
|---|---|
| Conventional steel wool electrowinning cell | Cathode consumed each cycle and the wool has to be calcined |
| This machine | Reusable titanium cylinder cathode, 99%+ recovery, barren below 2-10ppm |
Running The Machine
Step
Pump the eluate or leach liquor in through the inlet valve and purge air through the exhaust valve.
Step
Start electrowinning at the PLC panel.
Step
Run the cycle through; the exhaust fan keeps the unit in its normal temperature range.
Step
Strip the gold deposit from the titanium cathode cylinder.
Step
Refine the recovered gold once before sale.
Step
Return the barren solution to the circuit.
The Machine In The Factory And On Site
Questions About The Gold Electrowinning Machine For Carbon Desorption And Cyanide Leach Solution
Does this replace my elution circuit?
No. It sits after desorption and wins the gold out of the eluate.
Can it take leach liquor directly?
Yes. Cyanide leaching solution is a stated feed for this machine.
What happens to the cathode?
The titanium cylinder is reusable. The gold deposit is stripped off and the cylinder goes back in.
What recovery should I expect?
Over 99%, with barren solution below 2-10ppm gold.
What size unit fits a small operation?
The AC200 treats 100-150 L/day of gold-bearing solution; larger models go up to 500-800 L/day.
Can the machine be built to our plant layout?
Yes, the machines are standardised but can be customised to requirement.
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View machineGet A Quotation For The Gold Electrowinning Machine For Carbon Desorption And Cyanide Leach Solution
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