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ScheeliteScheelite (CaWO4) has emerged as the primary source of tungstenTungsten (W), a critical metalCritical metal with a high economic importance and supplySupply risk. The processingProcessing of scheeliteScheelite-bearing skarn depositsSkarn deposits is challenging due to the similar surface properties of scheeliteScheelite and associated calcium-bearing gangue minerals such as garnet, vesuvianite, calcite and fluorite. This study investigates the potential of a novel anionic collectorCollector, Berol 8313, and a depressant, polyaspartic acid (PASP), to enhance the separation efficiencyEfficiency of scheeliteScheelite from other calcium-bearing minerals. FlotationFlotation tests were carried out using plant samples from the Tasmania Mines scheeliteScheelite processingProcessing facility, with varying reagent dosages (collectorCollector and depressant: 50–200 g/t) and pH levels (8–11) This study highlights the potential of Berol 8313 and PASP as selective reagents for scheeliteScheelite processingProcessing in skarn depositsSkarn deposits, offering an improved approach to tungstenTungsten recoveryRecovery.

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Optimising Scheelite Processing at the Kara Mine, Tasmania: A Case Study of a Novel Flotation Collector and Depressant

  • 会议论文

  • 发表日期：

    2025年

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  • Emmanuel Dogara Musa,
  • Mohammadbagher Fathi,
  • Julie Hunt,
  • Owen Missen,
  • Greg Doherty,
  • Marcus Mollison

摘要

ScheeliteScheelite (CaWO4) has emerged as the primary source of tungstenTungsten (W), a critical metalCritical metal with a high economic importance and supplySupply risk. The processingProcessing of scheeliteScheelite-bearing skarn depositsSkarn deposits is challenging due to the similar surface properties of scheeliteScheelite and associated calcium-bearing gangue minerals such as garnet, vesuvianite, calcite and fluorite. This study investigates the potential of a novel anionic collectorCollector, Berol 8313, and a depressant, polyaspartic acid (PASP), to enhance the separation efficiencyEfficiency of scheeliteScheelite from other calcium-bearing minerals. FlotationFlotation tests were carried out using plant samples from the Tasmania Mines scheeliteScheelite processingProcessing facility, with varying reagent dosages (collectorCollector and depressant: 50–200 g/t) and pH levels (8–11) This study highlights the potential of Berol 8313 and PASP as selective reagents for scheeliteScheelite processingProcessing in skarn depositsSkarn deposits, offering an improved approach to tungstenTungsten recoveryRecovery.