O’Callaghans Tungsten Project Study
Client Newcrest Mining Limited
Location Western Australia
Commodity Tungsten
Services Scoping Study
CPC undertook a scoping study for the O’Callaghan’s Tungsten and Polymetallic Metals Project including the compilation of capital and operating cost estimates.
The developed flowsheet comprised of crushing, recovery of a high sulphide-tungsten gravity pre-concentrate in the grinding circuit, re-grinding of the gravity pre-concentrate, sequential flotation of the copper/lead/zinc/metal sulphides, high intensity magnetic separation for the removal of paramagnetic gangue minerals from the flotation tailings, recovery of the tungsten minerals using gravity separation on the non-magnetic stream, a final sulphide flotation cleaning stage, and high intensity magnetic separation of the sulphide cleaner flotation tailings to produce separate wolframite and scheelite products.
