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    • 4. 发明授权
    • Gas separation membrane with organosilicon-treated molecular sieve
    • 气体分离膜用有机硅处理分子筛
    • US06508860B1
    • 2003-01-21
    • US09960194
    • 2001-09-21
    • Sudhir S. KulkarniDavid J. HasseDavid R. CorbinAspi N. Patel
    • Sudhir S. KulkarniDavid J. HasseDavid R. CorbinAspi N. Patel
    • B01D5322
    • B01D69/148B01D53/228B01D67/0079B01D69/145B01D2323/21
    • A mixed matrix membrane for gas separations is provided with a nonporous continuous phase of a polymer and a dispersed phase of molecular sieve particles reacted with a monofunctional organosilicon compound. The monofunctional organosilicon compound is characterized by (a) at least one silicon substituent group which reacts or is compatible with the polymer, and (b) at most one displaceable radical that can react with the molecular sieve. A process for making a selectively gas permeable mixed matrix membrane involves reacting a molecular sieve with the monofunctional organosilicon compound, uniformly dispersing the reacted sieve with a polymer, and forming the resulting mixed matrix composition into a membrane structure. These mixed matrix membranes provide an improved combination of permeability and selectivity as compared to polymer-only membranes and mixed matrix membranes in which the molecular sieve is not reacted with a monofunctional organosilicon compound.
    • 用于气体分离的混合基质膜具有聚合物的无孔连续相和与单官能有机硅化合物反应的分子筛颗粒的分散相。 单官能有机硅化合物的特征在于:(a)至少一个与聚合物反应或相容的硅取代基,和(b)至多一个可与分子筛反应的位移基团。 制造选择性透气的混合基质膜的方法包括使分子筛与单官能有机硅化合物反应,将反应的筛与聚合物均匀分散,并将所得的混合基质组合物形成膜结构。 与仅聚合物膜和分子筛不与单官能有机硅化合物反应的混合基质膜相比,这些混合基质膜提供了改善的渗透性和选择性的组合。