Highlights
- A substantial metallurgical testwork program has been completed on the Boda and Kaiser gold-copper prospects, culminating in full locked cycle tests on appropriately representative composites of each deposit and resultant recovery estimates.
- The overall recovery for Boda is estimated at 87.4% of copper and 80.9% of gold in the plant feed to saleable products.
- The overall recovery for Kaiser is estimated at 79.6% of copper and 70.7% of gold in the plant feed to saleable products.
- The program has established a viable flowsheet for the processing of Boda and Kaiser ore, comprising of conventional crushing, grinding and flotation circuits to produce a saleable concentrate and leaching of the cleaner tail to produce gold dore.
- Testwork results and the process design criteria will be incorporated into a scoping level assessment of potential project economics, expected to be completed in Q2 CY2024.
Alkane is pleased to announce the results of the next stage of its metallurgical testwork program at the Company’s Northern Molong Porphyry Project (NMPP) in Central New South Wales. The NMPP deposits extend over three kilometres from Kaiser, through Boda to Boda 2-3. Alkane continues to successfully operate the nearby Tomingley Gold Operations, and believes the Boda-Kaiser system has the potential to become a large, tier one gold-copper project.
Alkane Managing Director, Nic Earner, said: “The metallurgical testwork program has been underway for many months with the overall goal of identifying the optimal means of processing ore from the Boda and Kaiser prospects and subsequent establishment of the most viable flowsheet. The results announced today clearly meet this goal, with our initial recovery expectations exceeded.
“The high recoveries from the Boda ore are particularly pleasing as the concentrates produced were of a saleable quality with very low impurities, which is another box ticked. Indeed, we consider that the concentrate from this project would be in high demand, consistent with other producers in the district.
“The results of this testwork campaign and the process design criteria generated have been supplied to an engineering firm for a scoping level estimate of plant design and associated cost. Processing scenarios are expected to include 10 and 20 million tonne per annum feed rates. We look forward to communicating these results next year.”