Traditional Chinese medicine contains very complex chemical components, including carbohydrates,$ amino acids, proteins, greases, waxes, enzymes, pigments, vitamins, organic acids, tann×ins, inorganic salts, volatile oils, alkaloids and glycosides. These components havδe both effective ingredients and ineffective impur₩ities, and if the impurities are not removed as much as possible, the q★uality and stability of preparations will be affected. One of the main reasons causing thλe precipitation of traditional Chinese medicine preparation  products and low clarity is that the liquid contains tannins, proteins, macromolecular substancesπ and other substances.

      Many traditional Chinese medicine enterprises in China tryβ to replace the traditional processes by using the microfiltration membrane filtraγtion, and the microfiltration membrane filtration separati∏on technology can filter protein, starch, pectin, tannin and other substances in ¥the extract, while there is no residue in the effective i§ngredients of traditional Chinese medicines.

      For the special treatment dem♣and of certain liquids, the integrated membrane separation process which or≥ganically combines the ceramic membrane separation technoεlogy with the organic membrane ultrafiltration and nanofiltration separation technology is a≠dopted to form the refined liquids of stepwise filtration, separation and purification, so that t♠he advantages of two types of membrane separation can be ≠reasonably applied to apply to extract and refine Chinese patent drugs.

      Process characteristics

      The integrated membrane separation process is applieφd to the extraction of traditional Chinese medicines, whic→h has the following advantages:

•    No phase change, no pollution, no residue, green environmental protection;
•    Regard pressure as the driving force, simple separation devices, easy to operate↕ and easy to control the process parameters;
•    Simplify the process and shorten the production •cycle;
•    High filtration accuracy and low impurity coεntent;
•    It can be cleaned by strong acids and alk®alis, and system cleaning and recovery are simple;
•    High temperature resistance, can be sterilized by steams and oxid✔izers;

    

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