We manufacture Merrill-Crowe Plants for the recovery of gold and silver from cyanide solutions. A Merrill Crowe process lets you easily precipitate gold & silver previously dissolved by cyanide using zinc dust.
Two primary Merrill-Crowe Plant sizes are manufactured, a 10 gallon per minute plant (65 tons of solution per day), and a 50 gallon per minute plant (300 tons of solution per day). The plants are complete and include solution circulation pumps, flow meter for plant feed, de-aeration system with vacuum pump, de-aeration tower level control with recirculation system, precipitation pre-coat filter, clarifying pre-coat filter, zinc dust hopper, zinc dust feeder, instrumentation, internal piping, steel mounted frame. All plants are for continuous operation. All that is necessary for the user to supply is piping to and from the unit, external wiring to the unit and site installation.
We often refer to this series of Merrill Crowe Plants as “Economy” Merrill-Crowe Plants. while adequate equipment is used to build the plant, it is not PREMIUM QUALITY, and therefore costs significantly less. It is a GOOD MERRILL CROWE PLANT & THAT WORKS! Hundreds sold have functioned in pilot testing or small volume production of gold and silver, from both heap leaching and tank leaching, all over the world.
The standard configuration of the Portable Merrill-Crowe Plant uses canister pre-coat type filters for clarifying and precipitation filters. Plate and frame filters are available for precipitation filter, as an option. The dimensional size of the plant is increased when adding the plate and frame filter by approximately 3′ x 6′.
