Business
Bushranger Pre-Concentration Test Results
Bushranger Pre-Concentration Test Results.
About this update from Xtract Resources Plc
[{"type":"text","content":"\n\n \nFor immediate release\n20 July 2023\n \nXtract Resources Plc\n(\"Xtract\" or the \"Company\")\nBushranger Pre-Concentration Test Results\n \nThe Board of Xtract Resources Plc (\"Xtract\" or the \"Company\") is pleased to announce the results from a study to determine the applicability of the \"TOMRA\" method to pre-concentrate copper-gold mineralisation from the Racecourse Mineral Resource on the Bushranger Copper-Gold Project (\"Project\") in central New South Wales, Australia. \n \nHighlights\n \n· Completion of initial metallurgical test work with pre-concentration ore sorting of Racecourse samples using \"TOMRA\" ore sorting technology involving X-Ray Transmission and machine learning to sort mineralisation into a pre-concentrated ore product and waste.\n \n· All samples processed with TOMRA achieved upgrades to the copper content of the pre-concentrated material, with results in recovery varying depending on the quantity of sulphide in each sample.\n \n· A higher-grade sample assaying 0.56% Cu upgraded well with TOMRA treatment however with low metal recovery due to higher metals content in waste fractions, suggesting that pre-concentration may not be beneficial for higher-grade ore.\n \n· Excluding the higher-grade sample, the average input grade of typical grade copper-gold mineralisation was 0.23% Cu, which was upgraded to 0.35% Cu, giving a grade uplift of 52%. \n \n· The average mass yield was 36%, indicating that 64% of the original mass of the samples was rejected into the waste product, suggesting that ore sorting has the ability to increase the ore grade whilst reducing the mass to be treated.\n \n· Pre-concentration results for gold also showed a grade uplift using the TOMRA system, however the results are of limited significance to the overall project.\n \n· TOMRA recommended additional testing on different sample material, particularly higher-grade material to gauge amenability to ore sorting.\n \n· Xtract has engaged Optimal Mining Solutions (Pty) Ltd of Australia (\"Optimal Mining\") to incorporate the most recent TOMRA results into an updated economic model for the overall Bushranger Project....