WHITTLE RECYN CASE_2017

Figure 12 below shows Cyanide usage, and where available, the impact of the ReCYN™ process on cyanide purchase requirements. The redesigned phases allowed Prober to economically include higher CuCN/SXS material at end of mine life, thereby deferring high Cyanide usage ore until later in the mine life. This is a good indicator that the phases and schedule are working well together.

Figure 12: Cyanide Usage – key Prober Runs

‘Base Case Optimised Plan’ Run: all cyanide purchased

‘ ReCYN™ Optimised Plan’ Run: Cyanide partially recovered and reused via the ReCYN™ process

ReCYN™ Case Study – Martabe Operations

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