The Effects of Surfactant on the Mass Transfer in Extraction Column

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A single-drop extraction apparatus was used to investigate the dependency of mass transfer coefficient on the amount of surfactant added. The mass transfer rate during drop formation and falling period, as well as the overall mass transfer coefficient were studied. The theory of dynamic surface effect was used to explain these phenomena. The results show that the mass transfer resistance increases with the added amount of SLS when the surfactant concentration is below 20 ppm. If the concentration is higher than this value, the resistance becomes constant. The mass transfer during drop formation plays an important part on the overall mass transfer efficiency and will be significantly affected by the presence of surfactant. According to this study, it is more appropriate to explain the mass transfer resistance induced by the surfactant from the viewpoint of hydrodynamics, rather than from the model of barrier layer.

収録刊行物

  • Journal of chemical engineering of Japan  

    Journal of chemical engineering of Japan 31(3), 340-346, 1998-06 

    The Society of Chemical Engineers, Japan

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各種コード

  • NII論文ID(NAID)
    10002065444
  • NII書誌ID(NCID)
    AA00709658
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00219592
  • NDL 記事登録ID
    4539056
  • NDL 雑誌分類
    ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-R395
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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