Business
Results of Metallurgical Testing at Empire Mine
Results of Metallurgical Testing at Empire Mine.
About this update from Phoenix Copper Ltd. (united Kingdom)
[{"type":"text","content":"\n\nPhoenix Copper Limited / Ticker: PXC / Sector: Mining\n4 September 2023\nPhoenix Copper Limited\n('Phoenix' or the 'Company')\n \nResults of Metallurgical Testing at Empire Mine, Idaho\n & Drilling Update at Navarre Creek\n \nPhoenix Copper Ltd (AIM: PXC, OTCQX: PXCLY), the AIM-quoted USA-focused base and precious metals emerging producer and exploration company is pleased to announce the results of its metallurgical testing of Empire Mine ('Empire') open pit oxide material. The test work, completed by Resource Development Inc/Forte Dynamics of Wheat Ridge, Colorado ('Forte'), has further demonstrated the robust copper, gold, and silver recoveries possible at Empire using non-cyanide leaching technologies.\nForte has completed test work consisting of crushing, grinding, flotation, and both sulphuric acid and ammonium thiosulfate ('ATS') leaching on drill core composites collected from the 2022 Empire Mine metallurgical core drilling programme. While testing the use of ATS as a prospective sole reagent on material representative of the Empire Mine deposit, Forte also tested and developed flow sheets for flotation alone, as well as the hybrid processes of flotation followed by sulphuric acid leaching and flotation followed by ATS leaching to recover gold, silver, and copper.\nThe results of the test work to date have identified two potential processes which merit further optimisation, namely flotation plus ATS and flotation plus sulphuric acid leach. Both of the proposed leach circuits would be confined in agitated tanks. The metal recoveries and calculated gross metal value for each flowsheet are shown in Table 1.\nForte will now optimise both these processes and apply operating and capital costs to the optimisations.\nRyan McDermott, Chief Executive Officer, said: \"The results of the metallurgical test work completed thus far on the Empire open pit oxide deposit have further solidified the Company's confidence in the project.\n\"When Phoenix became involved with Empire in 2017, the Empire Mine was considered a copper project only. As a result of further drilling and test work conducted since that time, the Empire Mine has evolved into a robust polymetallic deposit consisting of copper, gold, and silver. These recent metallurgical results show that a number of processes exist, allowing for the recovery of ...