Merrill Crowe Plants

A Merrill-Crowe plant is used for the recovery of gold and silver from cyanide solutions through zinc precipitation. It is designed for continuous operation and includes all necessary systems for solution treatment, de-aeration, and metal recovery.

Recovery of gold from cyanide leach solutions
Recovery of silver from cyanide solutions
Heap leaching operations
Tank leaching operations
Pilot plant and small-scale production

Plant capacities :

• 10 GPM (~65 tons of solution per day)
• 50 GPM (~300 tons of solution per day)

Oxygen reduction :

• Approximately 1 PPM or less

Operation :

• Continuous

Complete integrated system including :

• Solution circulation pumps
• Flow meter
• De-aeration system with vacuum pump
• De-aeration tower with level control and recirculation
• Pre-coat clarifying filter
• Precipitation pre-coat filter
• Zinc dust hopper and feeder
• Instrumentation
• Internal piping
• Steel mounted frame
• Uses canister pre-coat filters (standard)
• Optional plate and frame filter for precipitation
• Compact and portable plant design
• Designed for ease of installation (external piping and wiring required)