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The Baptiste deposit is a large tonnage, low-grade, near surface, nickelNickel deposit located in central British Columbia, Canada, that is currently being developed by FPX NickelNickel Corp. Baptiste is a serpentinized ultramaficUltramafic deposit that, critically, was near barren in sulphurSulphur during mineral alteration resulting in the formation of awaruiteAwaruite, a metallic nickelNickel-iron alloy (Ni3Fe), as the dominant nickelNickel mineral. Part 1 of this paper summarizes the mineral processingProcessing developmentsDevelopment that result in the productionProductions of an awaruiteAwaruite mineral concentrate grading 60% Ni, primarily through low-intensity wet magnetic separation followed by froth flotationFlotation. This awaruiteAwaruite mineral concentrate is of sufficient grade and purity to be used directly in stainless steel productionProductions as a low carbonLow carbon intensity replacement for ferronickelFerronickel or, in select instances, class 1 nickelNickel. Alternatively, the awaruiteAwaruite mineral concentrate can be refined to produce a high-purity nickelNickel product to meet the growing demandDemand from the batteryBattery electric vehicleElectric Vehicles (EVs) supplySupply chain. Part 2 of this paper summarizes the developmentDevelopment of a hydrometallurgyHydrometallurgy flowsheetFlowsheet to refine the Baptiste awaruiteAwaruite mineral concentrate into high-purity nickel sulphateNickel sulphate. The resultant flowsheetFlowsheet consists of a counter-current, sulphuric acidSulphuric acid leach using medium-temperature pressure oxidationPressure Oxidation (POX) and atmospheric oxidation leach stages, producing a neutralized, iron-free, high-nickelNickel grade pregnant leach solution suitable for downstream purification using conventional unit operations. Key metallurgical testingTesting completed to date at Sherritt International’s pilot plant facility includes continuous piloting of the leachingLeaching circuit and multiple batch purification campaigns to produce high-purity nickel sulphateNickel sulphate crystals.

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Development of the Baptiste Nickel Project—Part 2: Hydrometallurgical Refining

  • 会议论文

  • 发表日期：

    2025年

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  • Kyle Marte,
  • Mike Boone

摘要

The Baptiste deposit is a large tonnage, low-grade, near surface, nickelNickel deposit located in central British Columbia, Canada, that is currently being developed by FPX NickelNickel Corp. Baptiste is a serpentinized ultramaficUltramafic deposit that, critically, was near barren in sulphurSulphur during mineral alteration resulting in the formation of awaruiteAwaruite, a metallic nickelNickel-iron alloy (Ni3Fe), as the dominant nickelNickel mineral. Part 1 of this paper summarizes the mineral processingProcessing developmentsDevelopment that result in the productionProductions of an awaruiteAwaruite mineral concentrate grading 60% Ni, primarily through low-intensity wet magnetic separation followed by froth flotationFlotation. This awaruiteAwaruite mineral concentrate is of sufficient grade and purity to be used directly in stainless steel productionProductions as a low carbonLow carbon intensity replacement for ferronickelFerronickel or, in select instances, class 1 nickelNickel. Alternatively, the awaruiteAwaruite mineral concentrate can be refined to produce a high-purity nickelNickel product to meet the growing demandDemand from the batteryBattery electric vehicleElectric Vehicles (EVs) supplySupply chain. Part 2 of this paper summarizes the developmentDevelopment of a hydrometallurgyHydrometallurgy flowsheetFlowsheet to refine the Baptiste awaruiteAwaruite mineral concentrate into high-purity nickel sulphateNickel sulphate. The resultant flowsheetFlowsheet consists of a counter-current, sulphuric acidSulphuric acid leach using medium-temperature pressure oxidationPressure Oxidation (POX) and atmospheric oxidation leach stages, producing a neutralized, iron-free, high-nickelNickel grade pregnant leach solution suitable for downstream purification using conventional unit operations. Key metallurgical testingTesting completed to date at Sherritt International’s pilot plant facility includes continuous piloting of the leachingLeaching circuit and multiple batch purification campaigns to produce high-purity nickel sulphateNickel sulphate crystals.