Mixed Matrix Membranes Containing Ion-Exchanged Molecular Sieves
    1.
    发明申请
    Mixed Matrix Membranes Containing Ion-Exchanged Molecular Sieves 审中-公开
    含离子交换分子筛的混合基质膜

    公开(公告)号:US20100018926A1

    公开(公告)日:2010-01-28

    申请号:US12145559

    申请日:2008-06-25

    摘要: The present invention discloses mixed matrix membranes (MMMs) comprising ion-exchanged molecular sieves such as UZM-5 zeolite ion-exchanged with Li+ cation (Li-UZM-5) and a continuous polymer matrix and methods for making and using these membranes. These MMMs, comprising ion-exchanged molecular sieves, in the form of symmetric dense films, asymmetric flat sheets, asymmetric hollow fibers, or thin-film composites, have exhibited simultaneously increased selectivity and permeability (or permeance) over polymer-only membranes and the mixed matrix membranes made from molecular sieves that have not been ion exchanged for gas separations. These MMMs are suitable for a variety of liquid, gas, and vapor separations such as desalination of water by reverse osmosis, deep desulfurization of gasoline and diesel fuels, ethanol/water separations, pervaporation dehydration of aqueous/organic mixtures, CO2/CH4, CO2/N2, H2/CH4, O2/N2, olefin/paraffin, iso/normal paraffins separations, and other light gas mixture separations.

    摘要翻译: 本发明公开了包含离子交换分子筛(例如与Li +阳离子(Li-UZM-5)离子交换的UZM-5沸石)和连续聚合物基质的混合基质膜(MMM)以及制造和使用这些膜的方法。 这些包含离子交换分子筛,以对称致密膜,不对称平板,不对称中空纤维或薄膜复合材料形式的MMM已经显示出与聚合物膜相比增加的选择性和渗透性(或渗透性),并且 由分子筛制成的未经离子交换进行气体分离的混合基质膜。 这些MMM适用于各种液体,气体和蒸汽分离,如通过反渗透脱水,汽油和柴油燃料的深度脱硫,乙醇/水分离,水/有机混合物的渗透蒸发脱水,CO 2 / CH 4,CO 2 / N2,H2 / CH4,O2 / N2,烯烃/石蜡,异/正链烷烃分离和其他轻质气体混合物分离。

    Microporous UZM-5 inorganic zeolite membranes for gas, vapor, and liquid separations
    2.
    发明授权
    Microporous UZM-5 inorganic zeolite membranes for gas, vapor, and liquid separations 失效
    用于气体,蒸汽和液体分离的微孔UZM-5无机沸石膜

    公开(公告)号:US08540800B2

    公开(公告)日:2013-09-24

    申请号:US13052720

    申请日:2011-03-21

    IPC分类号: B01D53/22 B01D71/02

    摘要: The present invention discloses microporous UZM-5 zeolite membranes, methods for making the same, and methods of separating gases, vapors, and liquids using the same. The small-pore microporous UZM-5 zeolite membrane is prepared by two different methods, including in-situ crystallization of one or more layers of UZM-5 zeolite crystals on a porous membrane support, and a seeding method by in-situ crystallization of a continuous second layer of UZM-5 zeolite crystals on a seed layer of UZM-5 zeolite crystals supported on a porous membrane support. The membranes in the form of disks, tubes, or hollow fibers have superior thermal and chemical stability, good erosion resistance, high CO2 plasticization resistance, and significantly improved selectivity over polymer membranes for gas, vapor, and liquid separations.

    摘要翻译: 本发明公开了微孔UZM-5沸石膜,其制造方法,以及使用其分离气体,蒸汽和液体的方法。 小孔微孔UZM-5沸石膜通过两种不同的方法制备,包括在多孔膜载体上的一层或多层UZM-5沸石晶体的原位结晶,以及通过原位结晶的接种方法 在支撑在多孔膜载体上的UZM-5沸石晶种的种子层上连续的第二层UZM-5沸石晶体。 圆盘,管或中空纤维形式的膜具有优异的热稳定性和化学稳定性,良好的抗侵蚀性,高的二氧化碳抗塑化性,并且对于气体,蒸汽和液体分离,在聚合物膜上显着提高了选择性。

    MICROPOROUS UZM-5 INORGANIC ZEOLITE MEMBRANES FOR GAS, VAPOR, AND LIQUID SEPARATIONS
    3.
    发明申请
    MICROPOROUS UZM-5 INORGANIC ZEOLITE MEMBRANES FOR GAS, VAPOR, AND LIQUID SEPARATIONS 失效
    用于气体,蒸气和液体分离的微波UZM-5无机沸石膜

    公开(公告)号:US20120240763A1

    公开(公告)日:2012-09-27

    申请号:US13052720

    申请日:2011-03-21

    IPC分类号: B01D53/22 B01J20/32

    摘要: The present invention discloses microporous UZM-5 zeolite membranes, methods for making the same, and methods of separating gases, vapors, and liquids using the same. The small-pore microporous UZM-5 zeolite membrane is prepared by two different methods, including in-situ crystallization of one or more layers of UZM-5 zeolite crystals on a porous membrane support, and a seeding method by in-situ crystallization of a continuous second layer of UZM-5 zeolite crystals on a seed layer of UZM-5 zeolite crystals supported on a porous membrane support. The membranes in the form of disks, tubes, or hollow fibers have superior thermal and chemical stability, good erosion resistance, high CO2 plasticization resistance, and significantly improved selectivity over polymer membranes for gas, vapor, and liquid separations.

    摘要翻译: 本发明公开了微孔UZM-5沸石膜,其制造方法,以及使用其分离气体,蒸汽和液体的方法。 小孔微孔UZM-5沸石膜通过两种不同的方法制备,包括在多孔膜载体上的一层或多层UZM-5沸石晶体的原位结晶,以及通过原位结晶的接种方法 在支撑在多孔膜载体上的UZM-5沸石晶种的种子层上连续的第二层UZM-5沸石晶体。 圆盘,管或中空纤维形式的膜具有优异的热稳定性和化学稳定性,良好的抗侵蚀性,高的二氧化碳抗塑化性,并且对于气体,蒸汽和液体分离,在聚合物膜上显着提高了选择性。

    PROCESS OF MAKING ASYMMETRIC POLYBENZOXAZOLE MEMBRANES
    4.
    发明申请
    PROCESS OF MAKING ASYMMETRIC POLYBENZOXAZOLE MEMBRANES 审中-公开
    制备不对称聚苯并噻唑膜的方法

    公开(公告)号:US20110316181A1

    公开(公告)日:2011-12-29

    申请号:US12823154

    申请日:2010-06-25

    IPC分类号: B01D67/00 B01D63/02

    摘要: The present invention provides a process for making an integrally skinned asymmetric polybenzoxazole hollow fiber membrane comprising spinning a dope solution via a dry-wet phase inversion technique to form a porous integrally skinned asymmetric o-hydroxy substituted polyimide or an o-hydroxy substituted polyamide hollow fiber membrane comprising microporous inorganic molecular sieve followed by thermal rearrangement at a temperature from about 250° to 500° C. to convert the polyimide or polyamide membrane into a polybenzoxazole membrane. These membranes contain microporous inorganic molecular sieve materials that can have a particle size from about 20 nm to 10 μm.

    摘要翻译: 本发明提供一种制备整体表皮的不对称聚苯并恶唑中空纤维膜的方法,包括通过干 - 湿相转化技术纺丝掺杂溶液以形成多孔整体表皮的不对称羟基取代的聚酰亚胺或邻羟基取代的聚酰胺中空纤维 膜,其包含微孔无机分子筛,随后在约250℃至500℃的温度下热重排,以将聚酰亚胺或聚酰胺膜转化为聚苯并恶唑膜。 这些膜含有可以具有约20nm至10μm的粒度的微孔无机分子筛材料。

    Processes for making nano zeolites and for recovery of nano zeolites from an aqueous suspension
    8.
    发明授权
    Processes for making nano zeolites and for recovery of nano zeolites from an aqueous suspension 有权
    用于制备纳米沸石和从水悬浮液中回收纳米沸石的方法

    公开(公告)号:US09133037B2

    公开(公告)日:2015-09-15

    申请号:US12909643

    申请日:2010-10-21

    申请人: Jaime G. Moscoso

    发明人: Jaime G. Moscoso

    摘要: Embodiments of a process for recovery of nano zeolites from an aqueous suspension are provided. The process comprises the steps of applying centrifugal force to the aqueous suspension to separate a supernatant phase from a solid phase that comprises the nano zeolites and residuals. The solid phase is contacted with a solution effective to dissolve or digest the residuals and to agglomerate the nano zeolites forming agglomerated nano zeolites. The solution is filtered to recover the agglomerated nano zeolites.

    摘要翻译: 提供了从水性悬浮液中回收纳米沸石的方法的实施方案。 该方法包括以下步骤:将离心力施加到水悬浮液中,以将上清液相从包含纳米沸石和残余物的固相中分离出来。 使固相与有效溶解或消化残余物的溶液接触,并使形成凝聚的纳米沸石的纳米沸石凝聚。 将溶液过滤以回收附聚的纳米沸石。

    UZM-37 aluminosilicate zeolite method of preparation
    9.
    发明授权
    UZM-37 aluminosilicate zeolite method of preparation 有权
    UZM-37铝硅酸盐沸石的制备方法

    公开(公告)号:US08158103B2

    公开(公告)日:2012-04-17

    申请号:US12750923

    申请日:2010-03-31

    CPC分类号: C01B39/48

    摘要: A new family of crystalline aluminosilicate zeolites has been synthesized. These zeolites are represented by the empirical formula. Mmn+Rr+Al(1−x)ExSiyOz where M represents a combination of potassium and sodium exchangeable cations, R is a singly charged organoammonium cation such as the propyltrimethylammonium cation and E is a framework element such as gallium. These zeolites are similar to MWW but are characterized by unique x-ray diffraction patterns and compositions and have catalytic properties for carrying out various hydrocarbon conversion processes.

    摘要翻译: 已经合成了一系列结晶硅铝酸盐沸石。 这些沸石由经验公式表示。 Mmn + Rr + Al(1-x)ExSiyOz其中M表示钾和钠可交换阳离子的组合,R是单电荷的有机铵阳离子,例如丙基三甲基铵阳离子,E是骨架元素如镓。 这些沸石类似于MWW,但是其特征在于独特的x射线衍射图和组成,并且具有用于进行各种烃转化方法的催化性能。