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    1. Extraction

      Tank Unit Type CounterCurrent Extractor Unit

      Technical advantages of tank unit type counter-current extractor unit

      1.It can enhance the strength difference between solvent and medicine and extract the effective components from the medi-cine to the maximum extent with high extracting rate.

      2.It can make use of the forced circulation method to accelerate the diffusion of effective components.

      3.With small solvent quantity,it can greatly reduce the energy consumption in subsequent procedure and reduce the produc-tion cost.

      4.With continuous operation,the pr


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      Technical advantages of tank unit type counter-current extractor unit

      1.It can enhance the strength difference between solvent and medicine and extract the effective components from the medi-cine to the maximum extent with high extracting rate.

      2.It can make use of the forced circulation method to accelerate the diffusion of effective components.

      3.With small solvent quantity,it can greatly reduce the energy consumption in subsequent procedure and reduce the produc-tion cost.

      4.With continuous operation,the pr


      Characteristics of tank unit type counter-cur-rent extractor unit

      1.With pipe and modular extracting tank unit, each extracting unit can independently carry out extracting operation (leaching, dynam-ic extraction, high temperature extraction), and also can be com-bined (continuous counter-current extraction, periodic continu-ous counter-current extraction).

      2.SpeciaI separating device is adopted to prevent the discharging be-ing blocked.

      3.Standard automatic operation bow can realize the automatic con-trol of temperature, liquid medicine pH (optional), bow speed (option-al) etc. key technological parameters, so as to guarantee the stability and reliability of continuous counter-current extracting technology.

      4.Near-infrared online detection system can be allocated for the re-al-time measurement of content of effective components of tradition-al Chinese medicine for the convenience of optimizing the technolog-ical parameters.

      5.Advanced traditional Chinese medicine manufacturing process analysis software platform and database management system can be allocated.


      Application Examples

      Tank unit type counter-current extracting technology for soluble salvianolic acids

      Comparison project Hot reflux extraction Tank group countercurrent extraction
      Extraction temperature (℃ ) 500 2000
      Solvent usage (L) 80 80
      Danshensu extract content (mg/g) 16 28
      Amount of solvent used per gram of medicinal material (ml) 0.5565 0.6646
      Medicinal dosage (g) 32 12

      Compared with the hot reflux extraction process, the extraction rate is increased by 19.4% and the solvent usage is reduced by 3/4.


      Tank unit type counter-current extracting technology for total panax notoginseng saponins

      Comparison project Tank group countercurrent extraction Hot reflux extraction Ultrasonic extracti Soxhlet extraction
      Extraction temperature (℃ ) 50 90 room temperature 90
      Ethanol concentration (%) 70 70 70 70
      Number of extraction tanks 4 1 1 1
      Saponins R1 content (mg/g) 8.65 9.70 5.14 2.07
      Saponins RG1 content 31.12 32.34 21.56 9.15
      Saponins RG1 content (mg/g) 126.63 176.03 104.81 102.84
      Extraction time per gram of medicine (min) 4 12 8 60
      Amount of solvent used per gram of medicinal material (ml) 8 24 16 10


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