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21.发明授权Pervaporation membranes highly selective for volatile solvents present in fermentation broths 有权渗透蒸发膜对发酵液中存在的挥发性溶剂具有高度的选择性公开(公告)号：US09085476B2
公开(公告)日：2015-07-21
申请号：US12202940
申请日：2008-09-02
申请人： Kamalesh K. Sirkar
发明人： Kamalesh K. Sirkar
CPC分类号： C02F1/44 , B01D61/362 , B01D61/38 , B01D69/08 , B01D69/105 , B01D2325/04 , B01D2325/38 , B01D2325/40 , C02F1/26 , C02F1/448 , C02F3/286 , C02F2101/322
摘要： Liquid membrane systems are provided for use in pervaporation techniques that achieves high selectivity, ensure stability and prevent contamination of the fermentation broth. Tri-n-octylamine (TOA), tri-laurlyamine or tri-decylamine as a liquid membrane is immobilized in the pores of a hydrophobic hollow fiber substrate having a nanoporous hydrophobic coating on the broth side. The liquid membrane in the coated hollow fibers demonstrate high selectivity and reasonable mass fluxes of solvents in pervaporation. The mass fluxes were substantially increased with the same selectivity of solvents when an ultrathin liquid membrane was used. The addition of butanol into the feed solution increases membrane selectivity.
摘要翻译： 提供液膜系统用于渗透蒸发技术，其实现高选择性，确保稳定性并防止发酵液的污染。 作为液膜的三正辛胺（TOA），三月桂胺或三癸胺固定在肉汤侧具有纳米多孔疏水涂层的疏水性中空纤维基材的孔中。 涂覆的中空纤维中的液膜在渗透蒸发中表现出高选择性和合理的溶剂质量通量。 当使用超薄液膜时，质量通量以相同的溶剂选择性显着增加。 向进料溶液中加入丁醇会增加膜选择性。
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22.发明授权Antisolvent crystallization in porous hollow fiber devices and methods of use thereof 有权多孔中空纤维装置中的抗溶剂结晶及其使用方法公开(公告)号：US07811381B2
公开(公告)日：2010-10-12
申请号：US11811557
申请日：2007-06-11
IPC分类号： C30B7/14
CPC分类号： C13K1/10 , B01D63/02 , B01D69/082 , B01D2323/225
摘要： Antisolvent crystallization systems and methods are provided that employ porous hollow fiber membranes. The porous hollow fiber membrane includes a plurality of porous hollow fibers positioned within a shell, each porous hollow fiber defining a lumen side and shell side. A crystallizing solution is introduced to one side of the hollow fibers and an antisolvent is introduced to the other side of the fibers, in either cocurrent or countercurrent flow. One of the antisolvent and the crystallizing solution permeates in part through the porous hollow fiber membrane to the other side and crystals are formed thereby. Permeation of the antisolvent or the crystallizing solution establishes advantageous radial mixing that facilitates crystal formation of a desired size distribution. Downstream mixing, e.g., a completely stirred tank or a static mixer, may be employed to further improve crystallization operations.
摘要翻译： 提供了使用多孔中空纤维膜的抗溶剂结晶体系和方法。 多孔中空纤维膜包括位于壳内的多个多孔中空纤维，每个多孔中空纤维限定内腔侧和外壳侧。 将结晶溶液引入中空纤维的一侧，并将反溶剂以并流或逆流流入纤维的另一侧。 反溶剂和结晶溶液中的一种通过多孔中空纤维膜渗透到另一侧，由此形成晶体。 反溶剂或结晶溶液的渗透产生有利的径向混合，其有利于所需尺寸分布的晶体形成。 可以使用下游混合，例如完全搅拌的罐或静态混合器，以进一步改善结晶操作。
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公开(公告)号：US07754083B2
公开(公告)日：2010-07-13
申请号：US12114315
申请日：2008-05-02
CPC分类号： C30B29/54 , C30B7/00 , Y10T117/10 , Y10T117/1024
摘要： A solid hollow fiber cooling crystallizer and method for crystallizing aqueous and organic solutions are provided. The solid hollow fiber crystallizer (SHFC) for carrying out cooling crystallization of inorganic/organic microsolutes/macrosolutes from solution generally includes a bundle of non-porous hollow fibers mounted within a shell where a feed solution for crystallization flows through the lumen side of the hollow fibers and a cooling solution flows through the shell side to form nuclei and subsequently crystals in the feed solution at a temperature below its saturation temperature. The solid hollow fiber crystallizer may be combined with a mixing device, such as a completely stirred tank or static mixer, to further effectuate crystallization. The solid hollow fiber crystallizer may be operated in a number of modes including feed recycle mode, once through mode, SHFC-in-line static mixer in series mode, and SHFC-CST in series mode. The advantages of solid hollow fiber cooling crystallization in comparison to conventional crystallization processes include improved temperature control between crystallizing solution and coolant, higher nucleation rates, improved control of crystal size and crystal size distribution, smaller crystal size, capability for decoupling crystal nucleation and crystal growth, decreased fouling of process equipment, and improved process scale-up.
摘要翻译： 提供了一种固体中空纤维冷却结晶器和用于结晶水溶液和有机溶液的方法。 用于从溶液中进行无机/有机微溶胶/大分子体的冷却结晶的固体中空纤维结晶器（SHFC）通常包括一束安装在壳体内的无孔中空纤维，其中用于结晶的进料溶液流过中空的内腔侧 纤维和冷却溶液流过壳侧以在低于其饱和温度的温度下形成核并随后在进料溶液中形成晶体。 固体中空纤维结晶器可以与混合装置如完全搅拌的罐或静态混合器结合，以进一步实现结晶。 固体中空纤维结晶器可以以包括进料循环模式，一次通过模式，串联模式中的SHFC在线静态混合器和串联模式的SHFC-CST的多种模式操作。 与常规结晶方法相比，固体中空纤维冷却结晶的优点包括改善结晶溶液和冷却剂之间的温度控制，更高的成核速率，改善晶体尺寸和晶体尺寸分布的控制，更小的晶体尺寸，解耦晶体成核和晶体生长的能力 减少工艺设备污染，改善工艺规模。
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24.发明授权System and method for selective separation of gaseous mixtures using hollow fibers 有权使用中空纤维选择性分离气态混合物的系统和方法公开(公告)号：US07318854B2
公开(公告)日：2008-01-15
申请号：US10976611
申请日：2004-10-29
申请人： Kamalesh K. Sirkar
发明人： Kamalesh K. Sirkar
CPC分类号： B01D53/229 , B01D53/22 , B01D63/02 , B01D2257/504 , B01D2313/40 , Y02C10/10
摘要： A system and method for separation of a gas, e.g., carbon dioxide, from a gaseous mixture using a hollow fiber membrane module. The module contains an absorbent solution that is effective in absorbing the gas for an extended period, e.g., eight hours, without regeneration or replacement. The absorbent solution is then regenerated by passing a sweep gas through the hollow fibers in the module. The separation system is particularly useful for fuel cell and battery applications.
摘要翻译： 使用中空纤维膜组件从气体混合物分离气体例如二氧化碳的系统和方法。 该模块包含吸收剂溶液，该吸收剂溶液有效吸收气体长达8个小时，无需再生或更换。 然后通过使吹扫气体通过模块中的中空纤维来再生吸收剂溶液。 分离系统特别适用于燃料电池和电池应用。
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25.发明授权Preparation of microporous films from immiscible blends via melt processing and stretching 失效通过熔融加工和拉伸从不混溶的共混物制备微孔薄膜公开(公告)号：US06824680B2
公开(公告)日：2004-11-30
申请号：US09851496
申请日：2001-05-07
IPC分类号： B01D7106
CPC分类号： B29C55/005 , B01D39/1692 , B01D67/0027 , B01D69/141 , B01D71/26 , B01D71/28 , B01D71/48 , B01D71/76 , B01D71/80 , B01D2323/08 , B01D2325/20 , B01D2325/30 , B29C47/00 , B29C47/0021 , B29K2105/0088 , B29K2105/04 , C08J5/18 , Y10T428/249978
摘要： The invention is directed broadly to microporous films prepared from immiscible blends of at least two components, preferably polymers, which are produced via melt processing, a film formed therefrom, for example by extrusion and post-film-forming treatments comprising uniaxial or biaxial cold-stretching and hot-stretching. The films have a three-dimensional reticulated or interconnected network of microcracks or crazing throughout the film, extending from one surface of the film to the other, providing a stable porosity and pore size useful for a variety of filtration and other applications.
摘要翻译： 本发明广泛地涉及由至少两种组分的混溶性混合物制备的微孔膜，所述共混物优选是通过熔体加工制备的聚合物，由其形成的膜，例如通过挤出和成膜后处理，包括单轴或双轴冷 - 拉伸和热拉伸。 这些膜具有三维网状或互连的微裂纹网络或从整个膜的一个表面延伸到另一个膜，从而为各种过滤和其它应用提供了稳定的孔隙率和孔径。
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公开(公告)号：US06635103B2
公开(公告)日：2003-10-21
申请号：US10200079
申请日：2002-07-19
申请人： Kamalesh K. Sirkar , A. Sarma Kovvali , Hua Chen
发明人： Kamalesh K. Sirkar , A. Sarma Kovvali , Hua Chen
IPC分类号： B01D5322
CPC分类号： B01D61/38 , B01D53/228 , B01D53/229 , Y02C10/10
摘要： A method for the separation of carbon dioxide from a gas mixture is described in which a dendrimer selective for carbon dioxide is present in an immobilized liquid membrane, the dendrimer being either in pure form or optionally with at least one solvent, such as but not limited to glycerol, polyethylene glycol, water, refrigerated methanol, NMP, or glycerol carbonate, the latter also having selective carbon dioxide properties as will be described below. In another embodiment, a dendrimer selective for carbon dioxide and capable of forming a film may be used in the method as the membrane itself, optionally with at least one solvent.
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27.发明授权Controlled release device based on aqueous-organic partitioning in porous membranes 失效基于多孔膜中水 - 有机分配的控制释放装置
公开(公告)号：US6110481A
公开(公告)日：2000-08-29
申请号：US205996
申请日：1994-03-04
CPC分类号： A61K9/0092 , A01N25/34 , Y10S424/07
摘要： A novel controlled release device employing microporous membranes with or without a nonporous coating and aqueous-organic partitioning of the bioreactive substances to be delivered is provided. Devices and methods for delivering pharmaceuticals, pest-control substances, hormones, nutrients and fragrances to humans, animals or any environment are also provided.
摘要翻译： 提供一种新颖的控制释放装置，其使用具有或不具有无孔涂层的微孔膜以及待递送的生物反应性物质的水 - 有机分配。 还提供了向人类，动物或任何环境递送药物，害虫控制物质，激素，营养物和香料的装置和方法。
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28.发明授权Controlled release device and method based on aqueous--organic partitioning in porous membranes 失效基于多孔膜中水 - 有机分配的控制释放装置和方法
公开(公告)号：US5858385A
公开(公告)日：1999-01-12
申请号：US897372
申请日：1997-07-21
CPC分类号： A61K9/0092 , A01N25/34 , Y10S424/07
摘要： A novel controlled release device employing microporous membranes with or without a nonporous coating and aqueous-organic partitioning of the bioreactive substances to be delivered is provided. Devices and methods for delivering pharmaceuticals, pest-control substances, hormones, nutrients and fragrances to humans, animals or any environment are also provided.
摘要翻译： 提供一种新颖的控制释放装置，其使用具有或不具有无孔涂层的微孔膜以及待递送的生物反应性物质的水 - 有机分配。 还提供了向人类，动物或任何环境递送药物，害虫控制物质，激素，营养物和香料的装置和方法。
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29.发明授权Method for solvent extraction using a dual-skinned asymmetric microporous membrane 失效使用双皮非对称微孔膜进行溶剂萃取的方法
公开(公告)号：US5714072A
公开(公告)日：1998-02-03
申请号：US552528
申请日：1995-11-06
CPC分类号： B01D61/246 , B01D11/0415
摘要： The instant invention is directed to a method of solvent extraction. The steps of the method include: providing a dual-skinned asymmetric membrane; providing a feed containing a solute; and providing a solvent. The feed and the solvent are contacted across the membrane. The solute of the feed is extracted, and forming thereby a raffinate and an extract.
摘要翻译： 本发明涉及溶剂萃取的方法。 该方法的步骤包括：提供双皮不对称膜; 提供含有溶质的饲料; 并提供溶剂。 进料和溶剂通过膜接触。 提取进料的溶质，由此形成萃余液和提取物。
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30.发明授权Hollow fiber contained liquid membrane pervaporation for removal of volatile organic compounds from aqueous solutions 失效中空纤维含有液膜，用于从水溶液中除去挥发性有机化合物
公开(公告)号：US5637224A
公开(公告)日：1997-06-10
申请号：US305873
申请日：1994-09-14
CPC分类号： B01D61/246 , B01D61/00 , B01D61/38
摘要： A vaporizable solute transfer system for transferring a vaporizable solute from an aqueous feed solution to an extractant liquid comprises a fluid tight housing, a porous membrane which divides the housing into a feed solution chamber and an extractant chamber, and a vacuum atmosphere chamber formed of a nonporous material. The housing has feed solution inlet and outlet ports which communicate with the feed solution chamber, an extraction inlet port which communicates with the extractant chamber, and a vacuum outlet port which communicates with the vacuum atmosphere chamber. The vaporizable solute transfer system also includes a pressure difference control means for maintaining a difference between a liquid pressure of a feed solution chamber and a liquid pressure of an extractant liquid in the extractant chamber substantially within a predetermined pressure range so that an interface between the feed solution and the extractant is substantially immobilized at the membrane. The vaporizable solute transfer system is particularly adapted for transferring vaporizable solute from a feed solution to an extractant, which feed solution and extractant may be immiscible with one another when in direct contact.
摘要翻译： 用于将可蒸发溶质从水性进料溶液转移到萃取剂液体的可汽化溶质转移系统包括流体密封壳体，将壳体分成进料溶液室和萃取室的多孔膜，以及由 无孔材料。 壳体具有与进料溶液室连通的进料溶液入口和出口，与萃取室连通的萃取入口和与真空气氛室连通的真空出口。 可蒸发溶质转移系统还包括压力差控制装置，用于保持进料溶液室的液体压力与萃取室中萃取剂液体的液体压力之间的差异，基本上在预定压力范围内，使得进料 溶液和萃取剂基本上固定在膜上。 可蒸发溶质转移系统特别适于将可蒸发溶质从进料溶液转移至萃取剂，该进料溶液和萃取剂在直接接触时可彼此混溶。
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