Membranes from UV-curable resins
    3.
    发明授权
    Membranes from UV-curable resins 失效
    紫外线固化树脂膜

    公开(公告)号:US5102552A

    公开(公告)日:1992-04-07

    申请号:US587891

    申请日:1990-09-25

    IPC分类号: B01D69/12

    CPC分类号: B01D69/125

    摘要: A composite membrane is disclosed having a microporous support which is coated with a UV curable polymer composition having a sufficiently high viscosity to prevent pore filling upon coating and curing. A process for making and a process for using the membrane is also disclosed.

    摘要翻译: 公开了一种具有微孔载体的复合膜,该微孔载体涂覆有具有足够高粘度的UV可固化聚合物组合物,以防止涂布和固化时的孔填充。 还公开了一种制备方法和使用该膜的方法。

    Systems and methods for predetermining maximum pressure differentials
for microporous hollow fibers employed in liquid-liquid extractions
    8.
    发明授权
    Systems and methods for predetermining maximum pressure differentials for microporous hollow fibers employed in liquid-liquid extractions 失效
    用于预测液 - 液萃取中使用的微孔中空纤维的最大压差的系统和方法

    公开(公告)号:US4976867A

    公开(公告)日:1990-12-11

    申请号:US333410

    申请日:1989-04-05

    摘要: Systems and methods for predetermining maximum pressure differentials for particular microporous hollow fiber membranes and essentially immiscible feed and extractant liquids to be employed in liquid-liquid extractions include a test module having a number of such fibers formed into a loop between the opposing ends thereof. A tubular sleeve element encompasses these opposing ends, and a potting compound positionally retains the opposing ends within the tubular sleeve. The hollow fiber lumens are fluid-connected to a reservoir containing a pressurized feed liquid, and the loops of hollow fiber are immersed in an essentially unpressurized extractant liquid. The pressure of the feed liquid is continually increased until there is an incipient presence of the feed liquid in the extractant liquid. The pressure of the feed liquid at that incipient presence may therefore be used to calculate a maximum pressure differential tolerated by the microporous hollow fibers for the feed and extractant liquids used. The system which detects the incipient presence may also be associated with full scale liquid-liquid extraction modules so that malfunctions and/or module failures may be determined.