Simulation of Extraction Process in Dual-Flow Countercurrent Extraction

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In the extractive purification of commercial glycyrrhizin (about 90% in purity) with dual-flow countercurrent extraction, the extractive recovery of an impurity in the sample was wrongly estimated by a reported calculation method. To investigate the cause, we simulated the extractive separation of the impurity from glycyrrhizin by dual-flow countercurrent extraction. If one used the reported calculation method, the extraction recoveries of the impurity into the organic phase were calculated as 40.6% or as 99.3%, on two different assumptions: (1) the distribution ratio of the impurity changed depending on its concentration, or (2) it varied with the concentration of glycyrrhizin in the extraction apparatus. The experimental results (99.1% recovery of the impurity in the organic phase) agreed with the calculation based on the latter assumption. With the calculation method, the distribution map of the components in the extraction column could be shown as well.

収録刊行物

  • Analytical sciences : the international journal of the Japan Society for Analytical Chemistry  

    Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 11(1), 109-112, 1995-01-10 

    The Japan Society for Analytical Chemistry

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各種コード

  • NII論文ID(NAID)
    10002404696
  • NII書誌ID(NCID)
    AA10500785
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09106340
  • データ提供元
    CJP書誌  J-STAGE 
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