Abstract:

This paper describes the optimization of the Carbon in Leach (CIL) circuit using newer industry technologies to improve operational consistency at the Haile Gold Mine process plant. Implementation of these technologies has allowed for an increase in throughput and optimization of reagent addition with greater control, leading to an overall multi-circuit performance increase without impacting overall recovery. This paper summarizes the following: 1 - The as-built design of the CIL circuit; 2 - The various technologies implemented; 3 - The current impact of those technologies; and 4 - How we’ll use these technologies moving forward to implement further advanced control in the CIL circuit.

Biography of the presenter: Jeremy Rozelle has worked in both operations and consulting during his 10 year career. Most recently, he joined OceanaGold at the Haile Gold Mine as the senior metallurgist. Prior to joining OceanaGold, he worked with a Nevada based consulting firm on process plant engineering and construction. During this time, he has worked on various components of process plant construction/commissioning in 8 countries. He started his career after graduating from the Colorado School of Mines with Hecla Mining at the Lucky Friday mine.

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Mr. Jeremy Rozelle