After commissioning, Cyanco was brought in to evaluate the cyanide consumption at a mine site to resolve issues related to an unusually large consumption of cyanide and dramatic cyanide fluctuations.

An open pit African gold mine with heap leach pads and mill processing capacity of 8,000 TPD, approached Cyanco during the engineering stage of a mill expansion. At the outset, SO2 for detoxification would have to be obtained from costly metabisulfite as transporting liquid SO2 was not feasible. Cyanco conducted the Phase 1 Test Work…

A Nevada mine with a poorly running detox circuit had been shut down for several months. The customer requested a Cyanco review of the detox circuit prior to the mill’s and emphasized that they had a tight timeline that could not be disrupted. Cyanco ran a Phase 2 Circuit Design Review and subsequently a Phase…

Cyanco was approached during the production phase an open pit gold mine to improve the mine’s cyanide addition control problems. Cyanco designed a CCS with high analysis frequency and multiple sample points to control the various addition points. The results were automated to feed into the mill’s DCS system so the DCS could control the…