Microporous aluminophosphate molecular sieve membranes for highly selective separations
    32.
    发明授权
    Microporous aluminophosphate molecular sieve membranes for highly selective separations 有权
    用于高选择性分离的微孔磷酸铝分子筛膜

    公开(公告)号:US08262779B2

    公开(公告)日:2012-09-11

    申请号:US12857308

    申请日:2010-08-16

    IPC分类号: B01D53/22 B01D71/02

    摘要: The present invention discloses microporous aluminophosphate (AlPO4) molecular sieve membranes and methods for making and using the same. The microporous AlPO4 molecular sieve membranes, particularly small pore microporous AlPO-14 and AlPO-18 molecular sieve membranes, are prepared by three different methods, including in-situ crystallization of a layer of AlPO4 molecular sieve crystals on a porous membrane support, coating a layer of polymer-bound AlPO4 molecular sieve crystals on a porous membrane support, and a seeding method by in-situ crystallization of a continuous second layer of AlPO4 molecular sieve crystals on a seed layer of AlPO4 molecular sieve crystals supported on a porous membrane support. The microporous AlPO4 molecular sieve membranes have superior thermal and chemical stability, good erosion resistance, high CO2 plasticization resistance, and significantly improved selectivity over polymer membranes for gas and liquid separations, including carbon dioxide/methane (CO2/CH4), carbon dioxide/nitrogen (CO2/N2), and hydrogen/methane (H2/CH4) separations.

    摘要翻译: 本发明公开了微孔磷酸铝(AlPO4)分子筛膜及其制造和使用方法。 微孔AlPO 4分子筛膜,特别是小孔微孔AlPO-14和AlPO-18分子筛膜通过三种不同的方法制备,包括在多孔膜载体上原位结晶一层AlPO 4分子筛晶体, 多孔膜载体上的聚合物结合的AlPO 4分子筛晶体层,以及通过在多孔膜载体上负载的AlPO 4分子筛晶体的种子层上原位结晶连续的第二层AlPO 4分子筛晶体的接种方法。 微孔AlPO4分子筛膜具有优异的耐热和化学稳定性,良好的耐侵蚀性,高的二氧化碳增塑性,并且对于气体和液体分离,包括二氧化碳/甲烷(CO2 / CH4),二氧化碳/氮气 (CO2 / N2)和氢/甲烷(H2 / CH4)分离。

    AROMATIC POLYSULFONE RESIN AND MEMBRANES THEREOF
    33.
    发明申请
    AROMATIC POLYSULFONE RESIN AND MEMBRANES THEREOF 有权
    芳香聚氧乙烯树脂及其膜

    公开(公告)号:US20120190764A1

    公开(公告)日:2012-07-26

    申请号:US13498877

    申请日:2010-09-14

    IPC分类号: C08G75/20

    摘要: According to the present invention, an aromatic polysulfone resin is offered which is suitable as film material, especially in porous membranes. The aromatic polysulfone resin of the present invention has a reduced viscosity of 0.55-0.65 dL/g, and preferably 0.58-0.62 dL/g, number average molecular weight (Mn) of 22000 or more, and preferably 23500 or more, and a value of the ratio of weight average molecular weight (Mw) relative to number average molecular weight (Mn) of 2.54 or less, and preferably 2.50 or less.

    摘要翻译: 根据本发明,提供了适合作为膜材料的芳族聚砜树脂,特别是在多孔膜中。 本发明的芳香族聚砜树脂的比浓粘度为0.55〜0.65dL / g,优选为0.58〜0.62dL / g,数均分子量(Mn)为22000以上,优选为23500以上, 的重均分子量(Mw)相对于数均分子量(Mn)的比例为2.54以下,优选为2.50以下。

    POROUS INORGANIC MEMBRANES AND METHOD OF MANUFACTURE
    35.
    发明申请
    POROUS INORGANIC MEMBRANES AND METHOD OF MANUFACTURE 有权
    多孔无机膜及其制造方法

    公开(公告)号:US20110293917A1

    公开(公告)日:2011-12-01

    申请号:US13115349

    申请日:2011-05-25

    摘要: A method is provided for making a porous inorganic membrane by using a mixture of an inorganic material, organic polymer particles and a solvent to form a slurry, the particles being non-spherical, distributing the slurry onto a surface, drying the slurry to remove the solvent and firing the dried slurry to produce the porous inorganic membrane. Examples of organic polymer particles include particles of acrylic. A substrate with a porous inorganic membrane disposed on the substrate is also provided, the inorganic membrane having an average thickness of from about 0.5 micron to about 30 microns, a porosity of from about 30% to about 65%, a median pore size (d50) of from about 0.01 micron to about 1 micron, and a value of (d90−d10)/d50 less than about 2, as measured by mercury porosimetry. An example of a substrate includes an inorganic porous support.

    摘要翻译: 提供了一种通过使用无机材料,有机聚合物颗粒和溶剂的混合物来制造多孔无机膜以形成浆料的方法,该颗粒是非球形的,将浆料分布在表面上,干燥浆料以除去 溶剂并焙烧干燥的浆料以产生多孔无机膜。 有机聚合物颗粒的实例包括丙烯酸颗粒。 还提供了具有设置在基底上的多孔无机膜的基底,无机膜的平均厚度为约0.5微米至约30微米,孔隙率为约30%至约65%,中值孔径(d50 )为约0.01微米至约1微米,并且通过水银孔率法测定的值(d90-d10)/ d50小于约2。 基材的实例包括无机多孔载体。

    MICROPOROUS ALUMINOPHOSPHATE MOLECULAR SIEVE MEMBRANES FOR HIGHLY SELECTIVE SEPARATIONS
    36.
    发明申请
    MICROPOROUS ALUMINOPHOSPHATE MOLECULAR SIEVE MEMBRANES FOR HIGHLY SELECTIVE SEPARATIONS 有权
    用于高选择性分离的微波铝磷酸酯分子筛

    公开(公告)号:US20100311565A1

    公开(公告)日:2010-12-09

    申请号:US12857308

    申请日:2010-08-16

    IPC分类号: B01J20/282

    摘要: The present invention discloses microporous aluminophosphate (AlPO4) molecular sieve membranes and methods for making and using the same. The microporous AlPO4 molecular sieve membranes, particularly small pore microporous AlPO-14 and AlPO-18 molecular sieve membranes, are prepared by three different methods, including in-situ crystallization of a layer of AlPO4 molecular sieve crystals on a porous membrane support, coating a layer of polymer-bound AlPO4 molecular sieve crystals on a porous membrane support, and a seeding method by in-situ crystallization of a continuous second layer of AlPO4 molecular sieve crystals on a seed layer of AlPO4 molecular sieve crystals supported on a porous membrane support. The microporous AlPO4 molecular sieve membranes have superior thermal and chemical stability, good erosion resistance, high CO2 plasticization resistance, and significantly improved selectivity over polymer membranes for gas and liquid separations, including carbon dioxide/methane (CO2/CH4), carbon dioxide/nitrogen (CO2/N2), and hydrogen/methane (H2/CH4) separations.

    摘要翻译: 本发明公开了微孔磷酸铝(AlPO4)分子筛膜及其制造和使用方法。 微孔AlPO 4分子筛膜,特别是小孔微孔AlPO-14和AlPO-18分子筛膜通过三种不同的方法制备,包括在多孔膜载体上原位结晶一层AlPO 4分子筛晶体, 多孔膜载体上的聚合物结合的AlPO 4分子筛晶体层,以及通过在多孔膜载体上负载的AlPO 4分子筛晶体的种子层上原位结晶连续的第二层AlPO 4分子筛晶体的接种方法。 微孔AlPO4分子筛膜具有优异的耐热和化学稳定性,良好的耐侵蚀性,高的二氧化碳增塑性,并且对于气体和液体分离,包括二氧化碳/甲烷(CO2 / CH4),二氧化碳/氮气 (CO2 / N2)和氢/甲烷(H2 / CH4)分离。

    METHOD FOR REMOVING DILUENT FROM A POLYMER EXTRUDATE, AND ITS APPLICATIONS
    37.
    发明申请
    METHOD FOR REMOVING DILUENT FROM A POLYMER EXTRUDATE, AND ITS APPLICATIONS 有权
    从聚合物挤出机中除去二氧化碳的方法及其应用

    公开(公告)号:US20100289174A1

    公开(公告)日:2010-11-18

    申请号:US12808095

    申请日:2008-12-12

    IPC分类号: B29C47/08 C08J3/00

    摘要: The invention relates to a method for removing a process solvent (P-sol) from a polymer extrudate, especially in connection with a process for producing a microporous membrane. The method involves contacting the extrudate with chlorinated hydrocarbon (CHC) and hydrofluoroether (HFE) in a first stage; contacting the extrudate from the first stage with HFE in a second stage; combining the first and second waste streams and then separating the P-sol from the combined streams to make an HFE-CHC stream; cooling the HFE-CHC stream to make an HFE-rich phase and a CHC-rich phase; and conducting the CHC-rich phase and/or the HFE-rich phase to step (A).

    摘要翻译: 本发明涉及一种从聚合物挤出物中除去工艺溶剂(P-sol)的方法,特别是与微孔膜的制造方法有关。 该方法包括在第一阶段使挤出物与氯化烃(CHC)和氢氟醚(HFE)接触; 在第二阶段将来自第一阶段的挤出物与HFE接触; 组合第一和第二废物流,然后将P-sol与合并的流分离以制备HFE-CHC流; 冷却HFE-CHC流以形成富含HFE的相和富CHC相; 并且将富CHCl相和/或富HFE相进行到步骤(A)。

    PROCESS FOR PRODUCING COMPOSITE SEMIPERMEABLE MEMBRANE
    38.
    发明申请
    PROCESS FOR PRODUCING COMPOSITE SEMIPERMEABLE MEMBRANE 审中-公开
    生产可复合膜的方法

    公开(公告)号:US20100176052A1

    公开(公告)日:2010-07-15

    申请号:US12593844

    申请日:2008-03-27

    IPC分类号: C02F1/28 B05D3/00

    摘要: The present invention aims at providing a process for producing composite semipermeable membrane excellent in water permeability and salt-blocking rate, and including an extremely small amount of unreacted components in the membrane, and at providing a composite semipermeable membrane obtained by the production process. The present invention relates to a process for producing a composite semipermeable membrane, comprising the steps of: producing an unwashed composite semipermeable membrane by forming a skin layer including a polyamide resin obtained by reaction between a polyfunctional amine component and a polyfunctional acid halide component on the surface of a porous support; and pretreating the unwashed composite semipermeable membrane by contact to a solution containing a water-soluble alcohol, and subsequently performing a membrane washing treatment by contact to pure water or ion exchange water.

    摘要翻译: 本发明的目的在于提供一种具有优异的透水性和防盐性的复合半透膜的方法,并且在膜中包含极少量的未反应组分,以及提供通过该制备方法获得的复合半透膜。 复合半透膜的制造方法技术领域本发明涉及复合半透膜的制造方法,其特征在于,包括以下步骤:通过形成包含通过多官能胺成分与多官能酰卤成分反应得到的聚酰胺树脂的表皮层来制造未洗涤的复合半透膜 多孔载体的表面; 并且通过与含有水溶性醇的溶液接触来预处理未洗涤的复合半透膜,然后通过与纯水或离子交换水接触进行膜洗涤处理。

    DIALYSIS MEMBRANE WITH IMPROVED REMOVAL OF MIDDLE MOLECULES
    39.
    发明申请
    DIALYSIS MEMBRANE WITH IMPROVED REMOVAL OF MIDDLE MOLECULES 有权
    透析膜改善中间体分子的去除

    公开(公告)号:US20100089820A1

    公开(公告)日:2010-04-15

    申请号:US12637268

    申请日:2009-12-14

    摘要: A hydrophilic semipermeable hollow-fibre membrane for blood treatment, with an integrally asymmetric structure based on a synthetic polymer. The hollow-fibre membrane possesses on its inner surface a separating layer and an adjoining open-pored supporting layer, and has an ultrafiltration rate in albumin solution of 5 to 25 ml/(h·m2·mmHg). The hollow-fibre membrane is free from pore-stabilising additives and has a maximum sieving coefficient for albumin of 0.005 and a sieving coefficient for cytochrome c that satisfies the equation SCCC≧5·10−5·UFRAlb3−0.004·UFRAlb2+1.081·UFRAlb−0.25 A method for producing such membranes by a coagulation process induced by a non-solvent, in which a spinning solution comprising a synthetic first polymer and possibly a hydrophilic second polymer is extruded through the annular slit of a hollow-fibre die to give a hollow fibre, and a coagulation medium that initiates coagulation in the interior of the hollow fibre is simultaneously extruded through the central opening of the hollow-fibre die, the coagulation medium initiating coagulation in the interior of the hollow fibre for formation of a separating layer on the inner surface of the hollow fibre and formation of the membrane structure, the method being characterised in that the interior filler contains a polyelectrolyte with negative fixed charges.

    摘要翻译: 一种用于血液处理的亲水性半透性中空纤维膜,具有基于合成聚合物的整体不对称结构。 中空纤维膜的内表面具有分离层和相邻的开孔支撑层,并且在白蛋白溶液中具有5至25ml /(h·m 2·mmHg)的超滤速率。 中空纤维膜没有孔稳定添加剂,白蛋白的最大筛分系数为0.005,细胞色素c的筛分系数满足方程式SCCC≥5·10-5·UFRAlb3-0.004·UFRAlb2 + 1.081·UFRAlb -0.25通过由非溶剂诱导的凝结过程制造这种膜的方法,其中包含合成的第一聚合物和可能的亲水性第二聚合物的纺丝溶液通过中空纤维模头的环形狭缝挤出,得到 中空纤维和在中空纤维内部引起凝结的凝固介质同时挤出通过中空纤维模头的中心开口,凝固介质在中空纤维内部起始凝结以形成分离层, 中空纤维的内表面和膜结构的形成,其特征在于,内部填料含有具有n的聚电解质 特惠固定费用。