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Shell GTLGas-To-Liquids (GTL) G75, G80 and G85 are synthetic, aliphatic miningMining fluids supplied by Shell for copper solvent extractionCopper solvent extraction (CuSX) operationsOperation which represents the 4th generation of SX diluentsDiluent. Shell GTLGas-To-Liquids (GTL) fluids are produced from natural gas via the gas-to-liquids (GTLGas-To-Liquids (GTL)) process, resulting in a unique mixture of hydrocarbon distillate different from common market diluentsDiluent. Laboratory tests of different blendsBlend under common operating SX conditions showed about 5–20% faster phase disengagementPhase disengagement. This was associated to the complex interplay between viscosityViscosity, density, and hydrocarbon composition of linear and lightly (methyl, ethyl) branched iso-paraffins, as opposed to other diluentsDiluent which may contain naphthenes and aromatics. The evaporationEvaporation rate was lower than common aromatic and de-aromatized diluentsDiluent, likely resulting in less top-up necessary.

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Benefits of Shell GTL Mining Diluents in Copper SX for Low-Grade Copper Ore

  • 会议论文

  • 发表日期：

    2025年

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  • Miguel Rivera-Torrente,
  • Nick Lokum

摘要

Shell GTLGas-To-Liquids (GTL) G75, G80 and G85 are synthetic, aliphatic miningMining fluids supplied by Shell for copper solvent extractionCopper solvent extraction (CuSX) operationsOperation which represents the 4th generation of SX diluentsDiluent. Shell GTLGas-To-Liquids (GTL) fluids are produced from natural gas via the gas-to-liquids (GTLGas-To-Liquids (GTL)) process, resulting in a unique mixture of hydrocarbon distillate different from common market diluentsDiluent. Laboratory tests of different blendsBlend under common operating SX conditions showed about 5–20% faster phase disengagementPhase disengagement. This was associated to the complex interplay between viscosityViscosity, density, and hydrocarbon composition of linear and lightly (methyl, ethyl) branched iso-paraffins, as opposed to other diluentsDiluent which may contain naphthenes and aromatics. The evaporationEvaporation rate was lower than common aromatic and de-aromatized diluentsDiluent, likely resulting in less top-up necessary.