Solvent Extraction of Copper Enhanced by Mixing Cavities in Micromixer

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  • Rauf SHEIK Abdul
    CSIR-Institute of Minerals and Materials Technology Academy of Scientific and Innovative Research (AcSIR)
  • KULKARNI Amol A
    CSIR-National Chemical Laboratory Academy of Scientific and Innovative Research (AcSIR)
  • SANJAY Kali
    CSIR-Institute of Minerals and Materials Technology Academy of Scientific and Innovative Research (AcSIR)

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<p>A Y micromixer with a macroscopic mixing cavity at the inlet junction was developed. The effects of the mixing cavity on the improvement of extraction of copper by LIX 84I were investigated. The investigated parameters and their ranges were: overall flow rate: 10 – 200 mL/min; microchannel size: 0.5 – 1 mm and mixing cavity diameter: 5 – 20 mm. Extraction efficiency, volumetric mass transfer coefficient, kinetics and pressure drop were investigated. The extraction efficiency and the volumetric mass transfer coefficient in the cavity micromixer were significantly higher than the Y micromixer. The volumetric mass transfer coefficient ranged between 1 – 93 s-1, and the pressure drop between 50 – 500 kPa. The residence time required in the micromixers was two orders of magnitude lesser than that of an agitated batch reactor. </p>

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