The Sepro Leach Reactor is a high concentration leach reactor developed to treat the gold concentrate produced by the Falcon Concentrator. The unit consists of a concentrate holding tank and a leach tank and impeller which are linked by a Sepro vertical bowl pump. The SLR uses either peroxide or oxygen gas to achieve elevated levels of dissolved oxygen required to accelerate the leaching process with no reagents required.  The pregnant leach solution produced can be directly electrowon. With the addition of an electrowinning unit the final product becomes a gold plated carbon that can be directly refined to produce gold bullion. Extensive test work of the SLR on site has shown over 99% of the target mineral is recovered through a simple, fully automated process that is easily incorporated into recovery operations. Sepro Mineral Systems Corp. supplies SLR units with capacities ranging from .