Method of making and using a hollow fiber microfiltration membrane
    1.
    发明授权
    Method of making and using a hollow fiber microfiltration membrane 失效
    制造和使用中空纤维微滤膜的方法

    公开(公告)号:US07070721B2

    公开(公告)日:2006-07-04

    申请号:US10970487

    申请日:2004-10-21

    IPC分类号: B01D65/00

    摘要: A hollow fiber microfiltration (MF) membrane is provided. The casting solution used to make this membrane includes a fiber-forming polymer having a degree of polymerization greater than about 1000, a water-soluble polymer, an anhydride with about 2 to 12 carbon atoms, and a solvent. The membrane is formed by mixing and heating these components to form a viscous dope and then extruding the dope through an annular orifice to form a hollow fiber MF membrane. The hollow fiber membrane is then fed through a coagulation bath and two leaching baths. The membrane is especially useful for filtering liquids, such as wine and juice, so as to remove bacteria, gel, and solid particles from the liquids.

    摘要翻译: 提供中空纤维微滤(MF)膜。 用于制造该膜的浇铸溶液包括聚合度大于约1000的纤维形成聚合物,水溶性聚合物,具有约2至12个碳原子的酸酐和溶剂。 通过混合和加热这些组分以形成粘性涂料形成膜,然后通过环形孔挤出涂料以形成中空纤维MF膜。 然后将中空纤维膜通过凝固浴和两个浸出浴进料。 该膜对于过滤液体如葡萄酒和果汁特别有用,以从液体中除去细菌,凝胶和固体颗粒。