Solvent extractionSolvent extraction (SX) is crucial in hydrometallurgical operationsOperation, particularly metal recoveryMetal recovery from leach solutions. Conventional SX systems rely on mechanical mixers, often resulting in energy losses due to inefficient fluid interactions. This study explores the potential of impinging flow technologyImpinging Flow Technology, complemented by static mixersStatic mixers, to enhance mass transferMass Transfer efficiencyEfficiency and reduce energy consumptionEnergy consumption. By leveraging the kineticKinetics energy of pumped fluids, we demonstrate that opposing impinging flow systems can achieve extractionExtraction efficienciesEfficiency comparable to those of traditional pump mixers while minimizing operational costs. The research integrates Python simulations and experimental validationsExperimental validation to quantify improvements in extractionExtraction efficiencyEfficiency. The findings indicate that opposing impinging flow combined with static mixing can achieve the same extractionExtraction efficiencyEfficiency as a mechanical mixing system (i.e., 35–50% for a single primary mixing conventional system). This suggests that primary mixers in a three-stage mixer-settle system may be unnecessary in some SX configurationsConfiguration. This study provides a framework for optimizing SX processes, making them more energy-efficient and sustainable.

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Mixing Theory and Application in Solvent Extraction with Opposing Impinging Flows and Static Mixers

  • Francis Dakubo

摘要

Solvent extractionSolvent extraction (SX) is crucial in hydrometallurgical operationsOperation, particularly metal recoveryMetal recovery from leach solutions. Conventional SX systems rely on mechanical mixers, often resulting in energy losses due to inefficient fluid interactions. This study explores the potential of impinging flow technologyImpinging Flow Technology, complemented by static mixersStatic mixers, to enhance mass transferMass Transfer efficiencyEfficiency and reduce energy consumptionEnergy consumption. By leveraging the kineticKinetics energy of pumped fluids, we demonstrate that opposing impinging flow systems can achieve extractionExtraction efficienciesEfficiency comparable to those of traditional pump mixers while minimizing operational costs. The research integrates Python simulations and experimental validationsExperimental validation to quantify improvements in extractionExtraction efficiencyEfficiency. The findings indicate that opposing impinging flow combined with static mixing can achieve the same extractionExtraction efficiencyEfficiency as a mechanical mixing system (i.e., 35–50% for a single primary mixing conventional system). This suggests that primary mixers in a three-stage mixer-settle system may be unnecessary in some SX configurationsConfiguration. This study provides a framework for optimizing SX processes, making them more energy-efficient and sustainable.