2.
    发明授权
    有权

    公开(公告)号:US11654378B2

    公开(公告)日:2023-05-23

    申请号:US17352295

    申请日:2021-06-19

    Abstract: A method of preparing a Senna obtusifolia seed extract rich in anthraquinones and a galactomannan extract includes the following steps: (1) crushing Senna obtusifolia seeds into a Senna obtusifolia seed powder; (2) extracting the Senna obtusifolia seed powder with 40-85% ethanol, filtering to obtain an extract solution and a residue; (3) concentrating the extract solution under vacuum to obtain a concentrated extract solution, spray-drying the concentrated extract solution to obtain the Senna obtusifolia seed extract; (4) extracting the residue with membrane filtered water, conducting a centrifugation to obtain a supernatant; (5) adding ammonium sulfate and ethanol to the supernatant to form a two-phase aqueous system, collecting a bottom layer of the two-phase aqueous system; and (6) conducting an ultrafiltration of the bottom layer with a cut-off molecular weight of 50 k-200 k to obtain a galactomannan extract solution, drying the galactomannan extract solution under vacuum to obtain the galactomannan extract.

    METHOD OF PRODUCING HIGH PURITY OXYGEN
    5.
    发明申请
    METHOD OF PRODUCING HIGH PURITY OXYGEN 审中-公开
    生产高纯氧的方法

    公开(公告)号:US20160096732A1

    公开(公告)日:2016-04-07

    申请号:US14870906

    申请日:2015-09-30

    Abstract: A highly cost-efficient method and process for producing oxygen from a gaseous mixture such as air results in substantial energy savings compared to conventional methods. The gaseous mixture is fed to a membrane absorber in which oxygen from the gas is absorbed, through a first membrane by an oxygen-absorbing liquid that possesses suitable absorption and desorption properties. The resulting oxygen-rich carrier liquid is fed to a membrane desorber in which oxygen from the liquid is desorbed through a second membrane, suitably with the aid of a vacuum. The oxygen product suitably has greater than 95% purity, or greater than 99% purity.

    Abstract translation: 与常规方法相比,用于从诸如空气的气体混合物产生氧气的高成本有效的方法和方法导致显着的能量节省。 气体混合物被供给到膜吸收器,其中来自气体的氧被吸收,通过具有合适的吸收和解吸性能的吸氧液体通过第一膜。 将所得富氧载体液体进料到膜解吸器中,其中适当地借助于真空将来自液体的氧气通过第二膜解吸附。 氧气产物适当地具有大于95%的纯度或大于99%的纯度。

    Liquid-liquid extraction system and method
    8.
    发明授权
    Liquid-liquid extraction system and method 有权
    液 - 液萃取系统及方法

    公开(公告)号:US07517455B2

    公开(公告)日:2009-04-14

    申请号:US11468040

    申请日:2006-08-29

    Abstract: A method of extracting ethanol from a feed solution using a liquid-liquid extraction system including an outer chamber and an inner chamber. The outer chamber is adapted to contain one of a feed solution and a liquid extractant and defines a containment region. The inner chamber is adapted to contain the other of the feed solution and the liquid extractant within a lower portion of the inner chamber. The inner chamber is defined by a microporous membrane sleeve that internally maintains a frame. Upon final assembly, at least the lower portion of the inner chamber is positioned within the containment region of the outer chamber such that the microporous membrane sleeve establishes an extraction interface between contents of the inner and outer chambers.

    Abstract translation: 一种使用包括外室和内室的液 - 液萃取系统从进料溶液中提取乙醇的方法。 外室适于容纳进料溶液和液体萃取剂中的一种,并且限定了容纳区域。 内室适于将另一种进料溶液和液体萃取剂容纳在内室的下部内。 内室由内部保持框架的微孔膜套筒限定。 在最终组装时,至少内室的下部位于外室的容纳区域内,使得微孔膜套筒在内室和外室的内容物之间建立提取界面。

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