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    • 81. 发明申请
    • UV CROSS-LINKED POLYMER FUNCTIONALIZED MOLECULAR SIEVE/POLYMER MIXED MATRIX MEMBRANES FOR SULFUR REDUCTION
    • UV交联聚合物功能化分子筛/聚合物混合基体膜减少硫化
    • US20080295692A1
    • 2008-12-04
    • US11757030
    • 2007-06-01
    • Chunqing LiuJeffrey J. ChiouStephen T. Wilson
    • Chunqing LiuJeffrey J. ChiouStephen T. Wilson
    • B01D46/00B29C71/04C08K3/30C08K3/32C08K3/34
    • B01D69/125B01D53/228B01D67/0006B01D69/141B01D2323/345
    • The present invention discloses high performance UV cross-linked polymer functionalized molecular sieve/polymer mixed matrix membranes (MMMs), the method of making these membranes, and the use of such membranes for separations. These UV cross-linked MMMs were prepared by incorporating polyethersulfone functionalized molecular sieves such as AlPO-14 and UZM-25 into a continuous UV cross-linkable polymer matrix followed by UV cross-linking. The UV cross-linked MMMs in the form of symmetric dense film, asymmetric flat sheet membrane, or asymmetric hollow fiber membranes described in the current invention have good flexibility and high mechanical strength, and exhibit significantly enhanced selectivity and permeability over the polymer membranes made from the corresponding continuous polyimide polymer matrices for carbon dioxide/methane (CO2/CH4) and hydrogen/methane (H2/CH4) separations. The MMMs of the present invention are suitable for a variety of liquid, gas, and vapor separations such as deep desulfurization of gasoline and diesel fuels.
    • 本发明公开了高性能的紫外线交联聚合物官能化分子筛/聚合物混合基质膜(MMM),制备这些膜的方法以及使用这种膜进行分离。 这些UV交联的MMM通过将聚醚砜官能化分子筛(例如AlPO-14和UZM-25)掺入连续的UV可交联聚合物基质中随后进行UV交联来制备。 本发明所述的对称致密膜,不对称平板膜或不对称中空纤维膜形式的UV交联MMM具有良好的柔韧性和高的机械强度,并且显示出比由 二氧化碳/甲烷(CO2 / CH4)和氢/甲烷(H2 / CH4)分离的相应的连续聚酰亚胺聚合物基质。 本发明的MMM适合于各种液体,气体和蒸气分离,例如汽油和柴油的深度脱硫。
    • 88. 发明授权
    • High plasticization-resistant cross-linked polymeric membranes for separations
    • 用于分离的高增塑抗性交联聚合物膜
    • US08816003B2
    • 2014-08-26
    • US12145153
    • 2008-06-24
    • Chunqing LiuStephen T. WilsonDavid A. Lesch
    • Chunqing LiuStephen T. WilsonDavid A. Lesch
    • C08F12/22
    • C08B15/10B01D53/228B01D67/0093B01D71/16B01D2323/30B01D2325/30C08G18/6484C08L71/02C08L81/06Y02P20/152
    • This invention involves a composition, a method of making, and an application of high plasticization-resistant chemically cross-linked polymeric membranes such as cross-linked cellulose acetate (CA) membrane. These cross-linked polymeric membranes with covalently interpolymer-chain-connected rigid networks showed no decrease in CO2/CH4 ideal selectivity under 690 kPa (100 psig) pure CO2 pressure and also no CO2 plasticization up to 3447 kPa (500 psig) pure CO2 pressure. By using the method of chemical cross-linking as described in this invention, the separation characteristics of the polymeric membranes can be decisively improved. These new cross-linked polymeric membranes can be used not only for gas separations such as CO2/CH4 and CO2/N2 separations, O2/N2 separation, olefin/paraffin separations (e.g. propylene/propane separation), iso/normal paraffins separations, but also for liquid separations such as pervaporation and desalination.
    • 本发明涉及一种组合物,制备方法,以及应用高耐增塑作用的化学交联聚合物膜,例如交联乙酸纤维素(CA)膜。 这些具有共价互聚链连接的刚性网络的交联聚合物膜在690kPa(100psig)纯二氧化碳压力下没有显示CO 2 / CH 4理想选择性的降低,并且也没有CO2增塑达3447kPa(500psig)纯二氧化碳压力 。 通过使用如本发明所述的化学交联方法,可以确定地提高聚合物膜的分离特性。 这些新的交联聚合物膜不仅可用于气体分离,如CO2 / CH4和CO2 / N2分离,O2 / N2分离,烯烃/石蜡分离(如丙烯/丙烷分离),异/正链烷烃分离,但 还用于液体分离,例如渗透蒸发和脱盐。