Red Lake – Campbell Mill Optimisation Study

Americas, Canada
Red Lake is an underground gold mine in northwestern Ontario, processing ore at the Red Lake and Campbell mills.

Processing at the Campbell mill is via three-stage crushing and rod and ball mill grinding followed by gravity concentration to recover free-milling gold, with refractory gold recovered by floatation. Flotation tailings are leached and flotation concentrate from both mills is treated by pressure oxidation at the Campbell mill.

Operating two low capacity mills results in high fixed costs for the operation. Lycopodium was engaged to study the feasibility of increasing the throughput of the Campbell mill to 1 Mtpa to enable processing at the Red Lake mill to cease.

The investigation looked at overland conveying of ore and modifications to the crushing and grinding circuit, as well as all downstream processing including increasing the capacity of the concentrate oxidation circuit which was contributing to a process bottleneck.

Let’s put our heads together.

Discover how you can harness the wealth of engineering, construction and project management expertise within our global group to extract maximum commercial value from your next project.

Get in touch