Millennium assessing much lower cost processing

MILLENNIUM Minerals is looking to dramatically cut the capex of a planned primary processing venture at its Nullagine gold operation.

Millennium assessing much lower cost processing Millennium assessing much lower cost processing Millennium assessing much lower cost processing Millennium assessing much lower cost processing Millennium assessing much lower cost processing

Instead of spending A$40-$46 million building and integrating a flotation circuit into the current Nullagine set-up, the gold miner is now looking at tacking-on a small modular concentrating circuit to the tail-end of the existing CIL plant.

Such a development could cost $12-15 million.

The basis of the new process method is scavenging un-leached sulphide concentrates from the existing CIL tailings and subjecting them to ultra-fine grinding and intense cyanidation in order to achieve an improvement in the overall leach recovery.

“This method is well understood and has been used successfully for many years to maximise the recovery of processed sulphide ore at other major WA gold mines including G...