СПОСОБ ИЗВЛЕЧЕНИЯ ИОНОВ МЕТАЛЛА

Дифосфоновые кислоты и их производные, такие как винилиден-1, 1-дифосфоновая кислота и 1,2-диоксиэтан-1,1-дифосфоновая кислота, комплексуют ионы металлов, особенно в II-IV окисленных состояниях, в результате чего образуются водорастворимые комплексы, особенно в сильно кислотной среде. После комплексообразования металлический комплекс отделяют и затем металл извлекают путем разложения в мягких условиях, предпочтительно и/или окисления, с высвобождением металла для его удаления или извлечения и с образованием, в основном, безвредных для окружающей среды побочных продуктов. 23 з.п. ф-лы, 6 табл.

АППАРАТ ДЛЯ РАЗДЕЛЕНИЯ ВЕЩЕСТВ С ПОМОЩЬЮ ЖИДКИХ МЕМБРАН

Аппарат для разделения веществ с помощью жидких мембран включает соединенные между собой заполненные жидкой мембраной первую и вторую камеры с устройствами для диспергирования соответствующих фаз, а также штуцеры для подачи и отвода фаз, при этом камеры соединены в верхних и нижних частях циркуляционными трубами так, что в каждой камере отверстие нижней трубы расположено выше границы раздела фазы и жидкой мембраны, когда плотность фазы превышает плотность жидкой мембраны, а отверстие верхней трубы расположено ниже границы раздела фазы и жидкой мембраны, когда плотность жидкой мембраны превышает плотность фазы. Аппарат может быть снабжен дополнительными камерами с циркуляционными трубами аналогичной конструкции, размещенными под первой и второй камерами. Размещенные друг под другом камеры разделены между собой перфорированными перегородками. Циркуляционные трубы могут быть расположены горизонтально или наклонно. 3 з.п. ф-лы, 2 ил.

ПОДПИТЫВАЮЩИЙ ЖИДКИЙ МАТЕРИАЛ ДЛЯ МЕМБРАНЫ

... 1. Способ проведения выделения по меньшей мере одного находящегося в газообразном пермеате рабочего материала из исходного газообразного материала, подаваемого в резервуар для исходного газообразного материала, находящийся во взаимосвязи с возможностью массопереноса с резервуаром для пермеата через мембрану, где исходный газообразный материал включает рабочий материал, представляющий собой находящийся в исходном газообразном материале рабочий материал, и мембрана включает гель, при этом способ включает:подачу исходного газообразного материала в резервуар для исходного газообразного материала и проникновение во время подачи исходного газообразного материала в резервуар для исходного газообразного материала по меньшей мере одной отделенной фракции находящегося в исходном газообразном материале рабочего материала из резервуара для исходного газообразного материала через мембрану в резервуар для пермеата, где проникновение по меньшей мере одной отделенной фракции находящегося в исходном газообразном ...

Жидкая мембрана для разделения водных растворов солей

IMMOBILISIERTE FLUESSIGMEMBRAN.

Allseitig abgeschlossene permselektive Fluessig-Membran

Membranen fuer ein in-vitro-Resorptionsmodell des Gastrointestinaltraktes

Vorrichtung zur Trennung von verschiedenartigen Seltenerdelementionen in flüssiger Lösung

Die Erfindung betrifft eine Vorrichtung zur Trennung von verschiedenartigen Seltenerdelementionen (50) in flüssiger Lösung, wobei mindestens eine Zelle 24 vorgesehen ist, die zumindest zwei unterschiedliche flüssige Phasen (26, 28) aufweist, dadurch gekennzeichnet, dass mindestens zwei Strömungskanäle (30, 32) vorgesehen sind, in denen sich jeweils eine der beiden flüssigen Phasen (26, 28) befindet, wobei eine erste flüssige Phase (26) in einem ersten Strömungskanal (30) ein Gemisch aus Seltenerdelementionen umfasst und wobei eine zweite flüssige Phase (28) in einem zweiten Strömungskanal (32) ein zu extrahierendes freies Seltenerdelemention mit niedrigerem chemischen Potential als im ersten Strömungskanal umfasst, und dass zwischen den beiden Strömungskanälen (30, 32) eine kationenpermeable Membran (34) angeordnet ist.

KUENSTLICHE HOHLFASERMEMBRAN-LUNGE UND VERFAHREN ZU IHRER HERSTELLUNG

VERFAHREN ZUR ABTRENNUNG VON AKTINIDEN UND LANTHANIDEN DURCH MEMBRANTRANSPORT UNTER VERWENDUNG EINES CALIXARENES

PROCESS FOR SEPARATING AN IONISED SUBSTANCE FROM AN AQUEOUS SOLUTION

... 1474238 Ion separation by cell membranes KERNFORSCHUNGSANLAGE JULICH GmbH 22 May 1974 [23 May 1973] 22898/74 Heading B1X [Also in Division Cl] An ionised substance is separated from an aqueous solution containing it by treating the solution with vesicles formed from cells of an organism and which contain an internal aqueous solution containing a complexing agent for the ionised substance, the osmolarities of the internal solution and of the aqueous solution being sufficiently similar as to maintain the cell membrane impermeable to the complexing agent, the ionized substance migrating through the cell membrane and being complexed therein, after which the vesicles are sperated from the aqueous solution. The aqueous solution may contain K+ and at least 0.5 mM/l of Mg++ or CA++ or both. The vesicles may be formed by introducing the cells into an exchange solution, also including complexing agent, whose osmolarity is lower than that of the cell contents and increasing ...

Method and apparatus for extracting metal ions from aqueous solutions

PROCEDURE FOR THE PRODUCTION OF AN IMMOBILIZED MULTILEVEL ONE ARTIFICIAL ONE LIPIDMEMBRAN FOR MEASUREMENTS OF PERMEABILITY WITH THE PAMPA METHOD

LIQUID DIAPHRAGM MODULES WITH EFFECTIVE DIAPHRAGM THICKNESS AND PROCEDURE FOR THEIR PRODUCTION NIEDRIGST

SEPARATION BY TRANSPORT OF MEANS OF A CARRIER

Process for fractionating a mixture of polyisocyanates

Latices from emulsified hydrocarbon rubber solutions by membrane separation

CATION-SELECTIVE LIQUID MEMBRANES AND THEIR USE

PRODUCTION OF LOW-ETHANOL BEVERAGES BY MEMBRANE EXTRACTION

Low ethanol wines and other alcoholic beverages are produced by treating ordinary alcoholic beverages with novel membrane extraction methods. Semipermeable membranes and extraction fluids comprised either of a non toxic, waterimmiscible organic solvent or an aqueous solution of a lowmolecular-weight but membrane-impermeable solute are used under mild conditions to selectively extract ethanol from alcoholic beverages, while leaving substantially intact the complement of other organic constituents that contribute to the color, aroma, and taste of the beverage. The methods disclosed may be adapted to continuous processing of alcoholcontaining beverages, in which an ethanol-rich product is continuously recovered from the organic or aqueous extraction fluid and the latter is continuously regenerated and subsequently recycled to the membrane extraction unit.

PROCESS FOR SEPARATION OF HYDROCARBONS FROM VAPOROUS MIXTURES

POROUS LIQUID POLYTETRAFLUOROETHYLENE MEMBRANE WITH HYDROPHOBIC AND HYDROPHILIC SURFACES

A liquid membrane is disclosed, which comprises a solvent, an active species capable of facilitated transport of a specific gas, and a support for maintaining a liquid body which comprises a mixture of said solvent and active species dissolved therein, said support being a porous polytetrafluoroethylene film one surface of which is hydrophobic and the other of which is hydrophilic.

HEMOFILTRATION DEVICE AND METHODS OF USE THEREOF

Parallel plate devices for hemofiltration or hemodialysis are provided. A parallel plate device includes a parallel plate assembly having an aligned stack of stackable plate subunits, each stackable plate subunit having a through channel for blood, where the blood channels are opened up at opposite ends of the parallel plate assembly. The parallel plate assembly is configured to form filtrate/dialysate channels interleaved with the blood channels, adjacent channels being separated by a silicon nanoporous filtration membrane. A blood conduit adaptor is attached to the parallel plate assembly at each of the ends, and is configured to distribute blood to or collect blood from the blood channels. Also provided are systems and methods for using the parallel plate devices.

AIR TREATMENT SYSTEMS AND METHODS

An air treatment unit may include an air inlet to receive a flow of input air for treatment and a reaction reservoir configured to hold an aqueous air treatment solution. The air treatment unit may also include an air dispersing element flow connected with the air inlet, wherein the air dispersing element is configured to convert at least a portion of the flow of input air into a plurality of microbubbles for introduction into the aqueous air treatment solution, such that an amount of one or more target gas species contained within the plurality of microbubbles is reduced through reaction with the aqueous air treatment solution. The unit may include an air outlet configured to output treated air from the reaction reservoir.

PROCESS FOR THE SEPARATION OF INDIUM FROM ACIDIC SOLUTIONS CONTAINING IT

SYSTEM OF LIQUID DIAPHRAGM CAPS SUSPENDED IN A WAESSRIGEN SUSPENSION PHASE, PROCEDURES FOR THEIR PRODUCTION AND THEIR USE.

Water purification by extraction by a vehicle drive system.

Separating technology of extractive phase pre-disperse immersion type hollow fiber support liquid membrane

The invention provides a separating technology of an extractive phase pre-disperse immersion type hollow fiber support liquid membrane, which is characterized by comprising the steps: taking an immersion type hollow fiber membrane component as a device in the process of liquid membrane; previously dipping a hollow fiber membrane silk with the extractive phase; and filling holes of a multi-hole inert support body with the extractive phase by the siphon action and the sorption action of a capillary tube to form a liquid membrane layer which selectively transmits solute. Back extractive phase anda small quantity of the extractive phase pass through a hollow fiber pipe, and the small quantity of extractive phase which flows in the pipe can compensate the lose of the liquid membrane layer to maintain the stability of the liquid membrane. The immersion type hollow fiber membrane component has no shell side, thereby being easily back washed; and by introducing the immersion type hollow fibermembrane ...

TOTALLY ENCLOSED LIQUID PERMSELECTIVE MEMBRANE

FACILITATED TRANSPORT OF HYDROGEN SULFIDE

MOLTEN SALT HYDRATE FOR SEPARATING GAS

A component (I) of a gas mixt. is sepd. from the mixt. by passing it over a membrane selectively permeable to (I) comprising a thin film at a molten salt hydrate. The molten salt hydrate may be immobilized within the pores of a thin, porous, inert support, or encapsulated in a non-porous, gas permeable polymer of polymer blend. The membrane is partic. useful of sepg. CO2 from CH4 and H2S from CH4 and H2, olefin gases from alkanes and water vapour from N2 and other permanent gases. Copyright 1997 KIPO ...

DEFINING AN ELECTRODE AREA

The present invention relates to a method for defining an area (4) of a layer on a porous substrate comprising compressing a volume of the substrate to produce a compressed region (8) which defines, or which in combination with an edge (7) of the substrate or of the layer defines, a boundary of the area and which substantially prevents the transport of material through or across its surface. The present invention also relates to an electrochemical sensing device comprising: a porous substrate; and an electrode (1) on one side of the substrate; wherein a region of the substrate is compressed to an extent which forms a barrier to migration of electrolyte within the substrate, the compressed region defining, or in combination with an edge of the substrate or the electrode defining, a zone on the electrode of predetermined area.

Two-stage hydroformylation process with circulating gas and SILP technology

The invention relates to processes for preparing aldehydes by hydroformylation of alkenes, in which an alkene-containing feed mixture is subjected to a primary hydroformylation with synthesis gas in the presence of a homogeneous catalyst system, the primary hydroformylation being effected in a primary reaction zone from which a cycle gas containing at least some of the products and unconverted reactants of the primary hydroformylation are drawn off continuously and partly condensed, with recycling of uncondensed components of the cycle gas into the primary reaction zone, and with distillative separation of condensed components of the cycle gas in an aldehyde removal stage to give an aldehyde-rich mixture and a low-aldehyde mixture. The problem that it addresses is that of developing the process such that it achieves high conversions and affords aldehyde in good product quality even in the case of a deteriorating raw material position. More particularly, a solution is to be found for making ...

FREE-STANDING LIQUID MEMBRANES FOR SUBSTANCE SEPARATION, FILTRATION, EXTRACTION, AND BLOCKAGE

A free standing liquid membrane is disclosed that can selectively separate objects based on the kinetic energy value of the objects such that either an object having a first kinetic energy value can pass through the free standing liquid membrane while retaining the membrane and/or an object having a second kinetic energy value is prevented from passing through the membrane while retaining the membrane. Advantageously, the free standing liquid membrane can remain intact for seconds to hours with multiple objects passing through the membrane. 113-. (canceled)14. A method of selectively separating objects , the method comprisingpassing at least one first object having a first kinetic energy value through a free standing liquid membrane while retaining the membrane and also preventing at least one second object having a second kinetic energy value from passing through the membrane while retaining the membrane, the at least one second object includes a gas or a non-solid object and the at least one first object includes a non-gaseous object or a solid object;wherein the first kinetic energy value is greater than the second kinetic energy value; andwherein the free-standing liquid membrane comprises at least one liquid and at least one surfactant.15. The method of claim 14 , wherein the passing of the at least one first object through the free standing liquid membrane while retaining the membrane occurs to prevent the at least one second object from passing through the membrane during a medical procedure claim 14 , the at least one first object including a mechanical tool utilized during the surgical procedure.16. The method of claim 14 , wherein the preventing of the at least one second object from passing through the free standing liquid membrane occurs at a medical care facility and the passing of the at least one first object through the free standing liquid membrane while retaining the membrane occurs at the medical care facility.17. The method of claim 14 , wherein ...

Method of defining an electrode area

The present invention relates to a method for defining an area (4) of a layer on a porous substrate comprising compressing a volume of the substrate to produce a compressed region (8) which defines, or which in combination with an edge (7) of the substrate or of the layer defines, a boundary of the area and which substantially prevents the transport of material through or across its surface. The present invention also relates to an electrochemical sensing device comprising: a porous substrate; and an electrode (1) on one side of the substrate; wherein a region of the substrate is compressed to an extent which forms a barrier to migration of electrolyte within the substrate, the compressedregion defining, or in combination with an edge of the substrate or the electrode defining, a zone on the electrode of predetermined area.

Liquid membrane coated ion-exchange column solids

This invention relates to a method for improving the performance of liquid membrane separations by coating a liquid membrane onto solid ion-exchange resin beads in a fixed bed. Ion-exchange beads fabricated from an ion-exchange resin are swelled with water and are coated with a liquid membrane material that forms a film over the beads. The beads constitute a fixed bed ion-exchange column. Fluid being treated that contains the desired ion to be trapped by the ion-exchange particle is passed through the column. A carrier molecule, contained in the liquid membrane ion-exchange material, is selected for the desired ion in the fluid. The carrier molecule forms a complex with the desired ion, transporting it through the membrane and thus separating it from the other ions. The solution is fed continuously until breakthrough occurs at which time the ion is recovered, and the bed is regenerated.

METHOD OF SEPARATING ALIPHATICALLY UNSATURATED HYDROCARBONS BY CONTACTING SAID HYDROCARBONS WITH A SOLID WATER-INSOLUBLE, SEMI-PERMEABLE FILM MEMBRANE

THERE IS DESCRIBED THE SEPARATION OF ALIPHATICALLY-UNSATURATED HYDROCARBONS FROM GASEOUS MIXTURES BY THE COMBINED USE OF FLOODED-CELL, LIQUID BARRIER PERMEATION AND METAL COMPLEXING TECHNIQUES. THE LIQUID BARRIER IS DISPOSED AS A CONTINUOUS, DISTINCT LIQUID PHASE IN CONTACT WITH A FILM MEMBRANE, AND THE BARRIER CONTAINS COMPLEXFORMING METAL IONS IN AQUEOUS SOLUTION. THE HYDROCARBON FEED GAS IS CONTACTED WITH THE LIQUID BARRIER CONTAINING A SURFACE-ACTIVE AGENT IN SOLUTION IN THE LIQUID BARRIER. THE SURFACE AGENT SERVES TO IMPROVE THE SELECTIVITY OF THE SEPARATION. THE METAL IONS IN THE LIQUID BARRIER MAY BE, FOR EXAMPLE, NOBLE METAL, NICKEL, MERCURIC, CUPROUS OR OTHER METAL IONS, AND MIXTURES OF THE METAL IONS, WITH OR WITHOUT OTHER CATIONS, MAY BE USED. THE SEPARATION OF ETHYLENE FROM ETHANE AND METHANE IS OF PARTICULAR INTEREST.

Membrane separation of carbon dioxide

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.

Liquid membrane

A liquid membrane is disclosed, which comprises a solvent, an active species capable of performing facilitated transport of a specific gas, and a support for maintaining a liquid mixture of the solvent and the active species, wherein the active species has the structure represented by the following formula: ...

ЖИДКАЯ МЕМБРАНА ДЛЯ ВЫДЕЛЕНИЯ СПИРТОВ ИЛИ ЭФИРОВ ИЗ ВОДНЫХ РАСТВОРОВ И СПОСОБ ВЫДЕЛЕНИЯ СПИРТОВ ИЛИ ЭФИРОВ

Изобретение относится к мембранным процессам выделения органических соединений из растворов. Предложена жидкая мембрана, размещаемая на поверхности раздела фаз и представляющая собой слой гидрофобной жидкости в виде масла толщиной 3-30 мм. Предложен способ выделения спиртов или эфиров из водных растворов путем их диффузионного испарения через заявленную жидкую мембрану с использованием газа или вакуума. Изобретение позволяет упростить и удешевить выделение упомянутых водорастворимых соединений из растворов. 2 н. и 3 з.п. ф-лы.

ПОДПИТЫВАЮЩИЙ ЖИДКИЙ МАТЕРИАЛ ДЛЯ МЕМБРАНЫ

Изобретение относится к мембранному разделению. Представлен способ проведения выделения по меньшей мере одного находящегося в газообразном пермеате рабочего материала из исходного газообразного материала, подаваемого в резервуар для исходного газообразного материала, находящийся во взаимосвязи с возможностью массопереноса с резервуаром для пермеата через мембрану, где исходный газообразный материал включает рабочий материал, представляющий собой находящийся в исходном газообразном материале рабочий материал, и мембрана включает гель. Способ относится к подпитывающему жидкому материалу, который обедняется из геля. Технический результат - улучшение производительности процессов пермеации. 4 н. и 79 з.п. ф-лы, 2 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 617 475 C2 (51) МПК B01D 61/38 (2006.01) B01D 53/22 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2013157902, 07.06.2012 (24) Дата начала отсчета срока действия патента: 07.06.2012 Дата регистрации: (73) Патентообладатель(и): ИМТЕКС МЕМБРЕЙНЗ КОРП. (CA) Приоритет(ы): (30) Конвенционный приоритет: R U 25.04.2017 (72) Автор(ы): ФЭН Сяньшэ (CA), ТОУ Ян Гленн (CA), ХАМЗА Али (CA), ПЕРЕС Хуан Карлос (CA) (56) Список документов, цитированных в отчете о поиске: US 3844735, (Standard Oil Co),1972. 07.06.2011 US 61/494,204 US 20040215045 A1, 28.10.2004. US 5670051 A1, 23.09.1997. (45) Опубликовано: 25.04.2017 Бюл. № 12 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 09.01.2014 (86) Заявка PCT: CA 2012/000554 (07.06.2012) (87) Публикация заявки PCT: 2 6 1 7 4 7 5 (43) Дата публикации заявки: 20.07.2015 Бюл. № 20 2 6 1 7 4 7 5 R U Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) ПОДПИТЫВАЮЩИЙ ЖИДКИЙ МАТЕРИАЛ ДЛЯ МЕМБРАНЫ (57) Формула изобретения 1. Способ проведения выделения по меньшей мере одного находящегося в газообразном пермеате рабочего материала ...

СПОСОБ ИЗВЛЕЧЕНИЯ ЖЕЛЕЗА (III) ИЗ КИСЛЫХ ХЛОРИДНЫХ РАСТВОРОВ

Использование: извлечение железа III из разбавленных технологических растворов и сточных вод при помощи жидких мембран. Сущность: железо III из исчерпываемой фазы извлекают в микрокапсулы диаметром 0,1 - 3,0 мм, заполненные принимающей фазой, сферическая оболочка которых имеет толщину (5-100)·10-5 мм и представляет собой жидкую мембрану. Микрокапсулы получают путем продавливания принимающей фазы, состоящей из 4,9 М нитрата натрия и 0,4 М соляной кислоты в воде, через пористый фильтр, предварительно смоченный образующим жидкую мембрану раствором, состоящим из 4 мас.% сорбитанмоноолеата и 1 мас.% тетраоктиламмоний хлорида или триоктиламина в н-декане, в перемешиваемую исчерпываемую фазу.

СПОСОБ ВЫДЕЛЕНИЯ ЭНАНТИОМЕРОВ ИЗ РАЦЕМИЧЕСКОЙ СМЕСИ

Изобретение относится к способу выделения энантиомеров из рацемической смеси противоточной экстракцией при помощи по меньшей мере двух жидкостей, имеющих взаимно различную хиральность, причем эти жидкости полностью смешиваются и разделены друг от друга фазой, с которой они не смешиваются. Разделяющую, несмешиваемую фазу можно вывести в твердый носитель, который может быть пористым или непористым и предпочтительно имеет форму полого волокна. Жидкости со взаимно различающейся хиральностью могут буть хирально активными по своей природе или альтернативно их можно получить введением хирального вспомогательного средства по меньшей мере в одну из экстрагирующих жидкостей. 12 з.п.ф-лы, 6 ил.

СПОСОБ ФРАКЦИОНИРОВАНИЯ СМЕСИ ПОЛИИЗОЦИАНАТОВ

Изобретение относится к способу фракционирования смеси полиизоцианатов. Способ представляет собой фракционирование смеси полиизоцианатов в жидкой фазе с помощью мембраны с избирательной проницаемостью на поток пермеата и поток ретентата полиизоцианатных составов, различающимися между собой и отличающимися от исходной смеси. Изобретение обеспечивает экономически выгодный способ фракционирования полиизоцианатов в плане простого технологического оборудования и низких эксплуатационных расходов. 15 з.п. ф-лы.

СПОСОБ И СИСТЕМА ДЛЯ РАЗДЕЛЕНИЯ ЛЕГКИХ ОЛЕФИНОВ

Изобретение касается способа разделения смесей олефинов и парафинов, включающего подачу по меньшей мере одного потока углеводородов в ректификационную колонну с получением потока верхнего продукта с более высокой концентрацией олефина, чем в указанном по меньшей мере одном потоке углеводородов, и потока нижнего продукта с более высокой концентрацией парафина, чем в указанном по меньшей мере одном потоке углеводородов. Затем осуществляют увлажнение части указанного верхнего потока путем нагнетания воды в указанный поток верхнего продукта, поддерживая постоянную температуру увлажненной части потока верхнего продукта, и подают часть указанного потока верхнего продукта, содержащего 72-90% олефина, в мембранный блок для разделения указанного потока верхнего продукта на поток пермеата, содержащий по меньшей мере 99,3 - 99,8 мол.% олефина, и поток ретентата, содержащий парафин. При этом часть потока верхнего продукта направляют на рецикл в ректификационную колонну после конденсации, при этом указанный ...

METHOD FOR PRODUCING OXYGEN AND NITROGEN AND MEMBRANE THEREFOR

METHOD OF TRANSFERING METAL IONS BY USE OF MICROPOROUS MEMBRANES

In transferring metal ions from an aq. liq. A to a non-aq. liq. B, and from B to an aq. liq. Z, B takes up the ions from A in a 1st transfer zone, and is fed to a 2nd transfer zone, where the ions are given up to Z. Liq. B is immiscible with A and with Z, contains a complex former for the ions, and is a solvent for the complexed metal ions. Liq.B is continuously circulated through the transfer zones, and liq. A is kept separate from the circulating liq. B by 1 or more microporous hydrophobic membranes, contg. in the pores part of the total amt. of liq.B. In the 2nd transfer zone, liq. B is mixed mechanically with liq. X, an aq. phase is sepd. from this mixt. by a mechanical separation process, and the remaining part of the mixt. is recycled into the circulation.

Gestützte Flüssigmembran und Abtrennverfahren unter Verwendung derselben

FLUESSIGMEMBRAN.

LIQUID MEMBRANE PROCESS FOR THE SEPARATION OF AQUEOUS MIXTURES

... 1370920 Removal of a dissolved species by diffusion ESSO RESEARCH & ENG CO 14 Sept 1971 42757/71 Heading C1A [Also in Divisions C2 and B1] A process for the removal of a dissolved species from an aqueous solution of the species comprises contacting a water in oil emulsion in which the exterior phase contains a surfactant and the interior phase comprises either (a) a reactant for the dissolved species, or (b) the aqueous solution of the dissolved species with either (a) the aqueous solution containing the dissolved species or (b) a solution comprising the reactant, whereby the dissolved species permeates the exterior phase and reacts with the reactant to give a non-permeable form. The dissolved species may be inorganic or organic, neutral or ionic, acidic or basic. Examples relate to removal of phosphoric acid and monosodium phosphate from an aqueous solution by mixing the phosphate solution and an emulsion of a solution of CaCl2 + NH4OH in a mixture of 1-amino-1,1,3,3,5,5,7,7,9,9-decamethyl ...

MAINTAINING OR RESTORING THE SEPARATION EFFICIENCY OF IMMOBILIZED LIQUID MEMBRANES IN GAS SEPARATION METHOD AND APPARATUS

SEPARATOR MEMBRANE AND PROCESS USING SUCH MEMBRANE FOR REMOVING IONS FROM AN AQUEOUS SOLUTION

PROCEDURE FOR THE SEPARATION OF METALLIC IONS WITH PHOSPHONIC ACIDS AS COMPLEXBILDNER

PROCEDURE AND DEVICE FOR THE SEPARATION OF AN INSATIATED HYDROCARBON FROM A HYDROCARBON MIXTURE

SUPPORTED CHIRALE LIQUID DIAPHRAGM FOR THE SEPARATION FROM ENANTIOMEREN

VERFAHREN ZUR ABTRENNUNG ALIPHATISCH- -UNGESAETTIGTER KOHLENWASSERSTOFFE MIT 2 BIS 8 KOHLENSTOFFATOMEN

PROCEDURE AND DEVICE FOR THE GAS SEPARATION

SEPARATION SYSTEMS WITH HYBRID DIAPHRAGM.

RUECKGEWINNUNG AND CONCENTRATION OF AQUEOUS ACIDS AND BASES.

PROCEDURE FOR THE SEPARATION ALIPHATIC - INSATIATED HYDROCARBONS WITH 2 TO 8 CARBON ATOMS

The treatment of waste water

ABSORPTION OF OXYGEN FROM AN OXYGEN-CONTAINING GAS

GAS SEPARATION BY COMPOSITE SOLVENT SWOLLEN MEMBRANES

Aeration device for filtration system

An aeration device configured to be fitted to a membrane filtration module having membranes mounted therein. The aeration device comprises a sleeve configured to at least partially surround the membrane filtration module. The sleeve has one end adapted to engage with the membrane filtration module and another end adapted to engage with a filtrate collection conduit or manifold.

PROCESS FOR SEPARATION OF UNSATURATED HYDROCARBONS

MOLTEN SALT HYDRATE MEMBRANES FOR THE SEPARATION OF GASES

The present invention is a membrane and a process for separating at least one component from at least one other component in a gas mixture. A gaseous mixture is passed over a membrane comprising a thin film of a molten salt hydrate which is selectively permeable to at least one component in the gaseous mixture.

IMMOBILIZED LIQUID MEMBRANE

... 71033-46 The present invention is a single-ply immobilized liquid membrane comprising an aqueous liquid membrane immobilized within a hydrophobic microporous support, and a method of preparing such an immobilized liquid membrane. The present invention also includes a method of preparing an ultrathin single-ply immobilized liquid membrane, comprising the steps of: (a) contacting a single-ply hydrophobic microporous support with an aqueous solution containing from about 40 to about 95 percent by volume of an exchange component until steady state is achieved; (b) removing said support from said aqueous solution; (c) contacting said support with water until steady state is achieved; (d) removing said support from said water; (e) repeating steps (a) to (d) until a water membrane is immobilized within substantially the entire thickness of said support; and (f) partially reducing the thickness of said membrane immobilized within said support by (i) establishing a moisture partial pressure gradient ...

PROTON IONIZABLE MACROCYCLIC COMPOUNDS AND SELECTIVE COMPETITIVE SEPARATION OF DESIRABLE METAL IONS FROM MIXTURES THEREOF WITH OTHER IONS

The invention has composition of matter and process aspects. The composition of matter aspect relates to compounds selected from the class consisting of where X = O and S; where n = integers where n = integers n = integers from from -1 to 3, inclusive from 1 to 4, inclusive -1 to 3, inclusive; R = C6-18H13-37 R = C6-18H13-37 R = C6-18H13-37 and where X = O and S; where n = integers from where n = integers from n = integers from -1 to 3, inclusive; 1 - 4, inclusive; -1 to 3, inclusive; R1 = H and Blocker; R1 = H and Blocker; R1 = H and Blocker; R2 = CH2OCH2CH=CH2, R2 = CH2OCH2CH=CH2, R2 = CH2OCH2CH=CH2, CH2O(CH2)3Si(R3)2Cl, CH2O(CH2)3Si(R3)2Cl, CH2O(CH2)3Si(R3)2Cl, CH2O(CH2)3Si(R4)2O- CH2O(CH2)3Si(R4)2OCH2O(CH2)3Si(R4)2O- SILICA GEL; SILICA GEL; SILICA GEL; R 3= CH3 and Cl; R 3 = CH3 and Cl; R 3 = CH3 and Cl; R4 = CH3 and O- R4 = CH3 and OR4 = CH3 and O- SILICA GEL SILICA GEL SILICA GEL The process aspect involves the use of these compounds to complex ...

PLASMA SEPARATION DEVICE

Devices and methods are provided that permit efficient and selective separation of liquid biological specimens into at least two constituent components to facilitate subsequent quantitative and qualitative analysis on at least one analyte of interest in at least one of the components. The devices generally include one or more sample deposition regions supported on a base. Each sample deposition region includes a separation membrane for separating the liquid biological specimen into two different fractions. The first fraction is trapped by the separation membrane while the second fraction passes through the separation membrane and into a respective collection membrane. The separation and collection membranes are easily separable from the devices and can be utilized for further processing and analysis.

METHOD FOR REPRODUCING OXYGEN AND NITROGEN AND MEMBRANE THEREFOR

SELECTIVE AQUEOUS EXTRACTION OF ORGANICS COUPLED WITH TRAPPING BY MEMBRANE SEPARATION

SELECTIVE AQUEOUS EXTRACTION OF ORGANICS COUPLED WITH TRAPPING BY MEMBRANE SEPARATION An improvement to processes for the selective extractation of organic solutes from organic solvents by water-based extractants is disclosed, the improvement comprising coupling various membrane separation processes with the organic extraction process, the membrane separation process being utilized to continuously recycle the water-based extractant and at the same time selectively remove or concentrate organic solute from the water-based extractant.

LIQUID MEMBRANE MODULES WITH MINIMAL EFFECTIVE MEMBRANE THICKNESS AND METHODS OF MAKING THE SAME

Modules for use in fluid separations, especially contained liquid membrane separations, exhibit minimal effective membrane thickness. The modules have a module case and first and second sets of superposed fabric layers within the case. Each fabric layer contains warp-wise extending hollow fiber membranes. In such a manner, the hollow fiber membranes of the first set of fabric layers alternate with the hollow fiber membranes in the second set of fabric layers so as to minimize the effective membrane thickness value of the module which thereby enhances the efficacy of fluid separations.

PROCESS FOR SEPARATING UNSATURATED HYDROCARBONS

METHOD OF SEPARATING PROTEIN AND FATTY ACIDS USABLE IN A METHOD FOR INDUSTRIAL FRACTIONATION OF SAID PROTEINS

Process and apparatus to modify the composition of a mixture of gas.

PROCEDE ET APPAREIL D'EXTRACTION CONTINUE D'ETHANOL CONTENU DANS UNE PHASE AQUEUSE

La présente invention concerne un procédé et un appareil d'extraction d'éthanol contenu dans une phase aqueuse à épurer, notamment d'éthanol produit par fermentation. Ce procédé est caractérisé en ce qu'on met en contact une phase aqueuse à épurer contenant l'éthanol avec une membrane liquide supportée (MLS, 15, 30) séparant ladite phase aqueuse à épurer d'une phase réceptrice aqueuse ou gazeuse, ladite membrane liquide supportée étant constituée d'une phase organique non miscible avec la phase aqueuse à épurer, non miscible avec la phase réceptrice si celle-ci est aqueuse, non volatile si la phase réceptrice est gazeuse et extrayant préférentiellement l'éthanol de ladite phase aqueuse à épurer, membrane liquide supportée MLS.

Process and apparatus for continuous extraction of ethanol contained in an aqueous phase

Process and means of separation of the metal ions

METHOD FOR LONG TERM AND CONTINUOS OPERATION OF SUPPORTED LIQUID MEMBRANE BY PERIODICAL SUPPLY OF EXTRACTION REAGENT

PURPOSE: Provided is a method for long term and continuos operation of supported liquid membrane by periodical supply of extraction reagent during the operation. The supported liquid membrane is used in separation of specific metal ions or proteins from the mixed and dissolved solution of various metal ions and proteins. CONSTITUTION: The operation method comprises: supplying solvent containing various metal ions to the supply tank(14); adjusting the acidity of the above solvent to the condition of extracting solvent and circulating the solvent in the supply tank(14) to one side in case of a flat membrane and to the exterior side in case of a hollow fiber membrane(16); installing two outlets, one at bottom and the other in the middle to the recovery tank(10) and connecting them to one pump(13); introducing the pH adjusted recovering liquid not to reach the middle outlet, and introducing solvent mixed with diluting liquid to the top of the recovery tank so that it enters through the middle ...

método para fracionar uma mistura de poliisocianatos na fase líquida

CONTINUOUS SEPARATOR BYPASS SYSTEMS AND METHODS OF USE THEREOF

The present disclosure provides for a continuous membrane separator bypass system and a continuous filtration separator system and methods of using the systems in the separation of liquid-liquid mixtures and filtration of process liquids. The methods and apparatus are useful for the production of fine chemicals and pharmaceuticals, particularly using Integrated Continuous Manufacturing (ICM), but can also be integrated with other manufacturing processes, such as batch and semi-continuous processes.

METHOD OF PURIFYING GAS, APPARATUS THEREFOR, AND ACID-GAS-ABSORBING LIQUID FOR USE IN THE PURIFICATION

An acid gas is efficiently separated and recovered from a gas mixture at a low cost. The amount of an acid gas to be absorbed per unit volume of an absorbing liquid is increased and the amount of the absorbing liquid to be circulated is reduced to save the circulatory energy. An absorbing liquid comprising an ionic liquid as the main ingredient is supplied to an upper part of an absorption column (13) kept at a given temperature and a given pressure, while a gas mixture comprising an acid gas and a nonacid gas is supplied to a lower part of the absorption column (13) to bring the gas mixture into contact with the absorbing liquid. Thus, the acid gas is absorbed in the absorbing liquid and the nonacid gas is separated from the acid gas and recovered from the absorption column (13). The absorbing liquid containing the acid gas absorbed therein is supplied to an upper part of a regeneration column (16) kept at a temperature which is equal to or higher than the temperature of the inside of ...

APPARATUS AND PROCESS FOR CARBON DIOXIDE ABSORPTION

Carbon dioxide is separated from a gas stream using a supported carrier liquid membrane having a selected concentration of carrier species, the method being especially suitable for use in anaesthesia under conditions of periodic flow.

Liquid membrane modules with minimal effective membrane thickness and methods of making the same

Modules for use in fluid separations, especially contained liquid membrane separations, exhibit minimal effective membrane thickness. The modules have a module case and bundle of a dense plurality of hollow fiber membranes contained in the case. One set of the fiber membranes in the bundle constitutes feed-fibers while another set of the fiber membranes in the bundle constitutes strip-fibers for use in contained liquid membrane separations. The feed-fibers and strip-fibers are disposed within the elongate module case in opposite generally wave-like paths such that the feed-fibers and strip-fibers converge at generally lengthwise-separated crossing regions within the module. This disposition of the feed-fibers and the strip-fibers minimizes the effective membrane thickness value of the module as compared to conventional contained liquid membrane modules thereby enhancing the efficacy of fluid separations.

FACILITATED TRANSPORT LIQUID MEMBRANE

Composition and method for chiral separations

Polymers are disclosed that are useful in performing chiral separations. A synthetic scheme for producing the novel polymers is also disclosed. The alkyl side chains of poly(γ-alkyl-α,L-glutamates) have been altered, allowing the facile substitution of the side chains with pendent functional groups. The compounds may be used as a stationary-phase or pseudo-stationary phase in separation techniques such as high performance liquid chromatography, or electrokinetic capillary chromatography. The novel compounds are water-soluble or water-swellable, and are particularly useful in separations of stereoisomers.

Systems and methods of microfluidic membraneless exchange using filtration of extraction outlet streams

A device, system and method for exchanging components between first and second fluids by direct contact in a microfluidic channel. The fluids flow as thin layers in the channel. One of the fluids is passed through a filter upon exiting the channel and is recycled through a secondary processor which changes the fluid's properties. The recycled fluid is reused for further exchange. The filter excludes blood cells from the recycled fluid and prevents or limits clogging of the filter. The secondary processor removes metabolic waste and water by diafiltration.

LIQUID-LIQUID EXTRACTION PROCESS OF METALS

AFFINITY CHROMATOGRAPHY DEVICES CONTAINING A FIBRILLATED POLYMER MEMBRANE FOR THE SEPARATION OF MRNA AND VIRAL VECTORS FROM AN AQUEOUS MIXTURE

The present disclosure is directed to affinity chromatography devices that include a fibrillated polymer membrane that contains therein inorganic particles that separate a targeted molecule from an aqueous mixture containing the targeted molecule. The targeted molecule includes proteins, antibodies, viral vectors, nucleic acids, and combinations thereof. The inorganic particles may be spherical or irregular in shape. A blend or combination of various sizes and/or shapes of inorganic particles may be utilized. An affinity ligand may be bonded to the inorganic particles and/or to the fibrillated polymer membrane. The affinity chromatography device may be repeatedly used and may be cleaned between uses. In some embodiments, the affinity chromatography devices separate nucleic acids (e.g., mRNA) and viral vectors (e.g., adeno-associated virus) from the aqueous mixture. Manifolds containing multiple affinity chromatography devices in a parallel configuration and multiple manifolds in a parallel ...

CARBON DIOXIDE SEPARATION MEMBRANE AND PRODUCTION METHOD THEREFOR

A carbon dioxide separation membrane according to the present invention includes: an ionic liquid affinitive porous layer (C) having an ionic liquid-containing liquid (A) retained in voids; and an ionic liquid non-affinitive porous layer (B). The ionic liquid affinitive porous layer (C) may contain inorganic materials (for example, metal oxide particles having an average particle size of about 0.001 to 5 µm on a number basis). An average thickness of the ionic liquid affinitive porous layer (C) may be about from 0.01 to 10 µm. The ionic liquid affinitive porous layer (C) may include the ionic liquid-containing liquid (A) at a ratio from 0.1 to 99 parts by volume with respect to 100 parts by volume of voids. It may be a carbon dioxide separation membrane for fertilizing plants with carbon dioxide. The carbon dioxide separation membrane can reduce a size of the carbon dioxide concentrating device and enables smooth operation of the device.

Liquid/liquid extractions with microporous membranes

АБСОРБЦИОННО-ДЕСОРБЦИОННОЕ УСТРОЙСТВО

Полезная модель относится к технике разделения и очистки газов. Абсорбционно-десорбционное устройство содержит мембранный блок для очистки исходной газовой смеси, выполненный в виде емкости, разделенной мембраной на камеру для исходной смеси, присоединенную со стороны входа к устройству подачи исходной газовой смеси и со стороны выхода - к потребителю очищенной газовой среды, и камеру для сорбирующей жидкости, при этом мембраны выполнены из непористого высокопроницаемого материала, устройство снабжено регенерационным мембранным блоком, выполненным в виде емкости, разделенной мембраной на камеру для отделенного газа и камеру для дегазации сорбирующей жидкости, причем камера для сорбирующей жидкости и камера для дегазации сорбирующей жидкости содержат турбулизирующую сетку и подключены к циркуляционной линии с насосом и емкостью для сорбирующей жидкости, камера для отделенного газа подключена к средству откачки отделенного газа, толщина слоя сорбирующей жидкости в камерах для сорбирующей ...

АППАРАТ ДЛЯ РАЗДЕЛЕНИЯ ВЕЩЕСТВ С ПОМОЩЬЮ ЖИДКИХ МЕМБРАН

Аппарат предназначен для проведения процессов массообмена методом жидких мембран и может быть использован в химической и других отраслях промышленности для очистки, извлечения и разделения веществ. Аппарат включает две камеры, снабженные устройствами для диспергирования фаз. Камеры соединены циркуляционными трубами в верхних и нижних частях. При ρф> ρм, отверстие нижней трубы расположено выше границы раздела фаз в камере, а при ρф< ρм отверстие верхней трубы расположено ниже границы раздела фаз в камере, где ρф- - плотность фазы, диспергируемой в камере, ρм- - плотность жидкой мембраны. Камеры попарно размещены друг над другом и соединены между собой, образуя многоступенчатый аппарат. Они расположены между перфорированными тарелками, размещенными в двух вертикальных колоннах. Циркуляционные трубы расположены наклонно между камерами. Аппарат позволяет проводить многоступенчатые процессы разделения веществ с помощью жидких мембран. 3 з. п. ф-лы, 2 ил.

VERFAHREN ZUM UEBERFUEHREN VON METALLIONEN UNTER VERWENDUNG MIKROPOROESER MEMBRANEN

Removing acid gases from fluid stream, especially natural gas, comprises using membrane unit comprising porous membrane in housing with plastic or rubber interior surface

Removing acid gases from a fluid stream involves passing the fluid stream over one side of a porous membrane while passing a liquid absorbent over the other side, the membrane being contained in a membrane unit with a housing having a plastic or rubber interior surface. Independent claims are also included for: (1) A method of desorbing acid gases from a loaded absorbent by passing the absorbent over one side of a membrane while passing an inert gas over the other side of the membrane; (2) A floating platform for producing and deacidifying natural gas, suitable for operation on open waters, comprising a natural gas production unit, a membrane unit as above for removing acid gases as above, and optionally a membrane unit for desorbing acid gases from the loaded absorbent.

VERFAHREN ZUR TRENNUNG EINER FLUESSIGEN EINSATZMISCHUNG VON KOHLENWASSERSTOFFOEL UND ORGANISCHEM LOESUNGSMITTEL.

APPARATUS AND METHOD FOR SEPARATING CONSTITUENT PARTS OF A SAMPLE LIQUID

A device and a process are proposed for separating constituents of a sample fluid, wherein the sample fluid is supplied by capillary force to a receiving region () for metering, stopping or delaying the sample fluid and the sample fluid is pre-treated with a soluble chemical () in the receiving region () before the sample fluid is supplied to a separating device () for separating off constituents of the sample fluid. 112. A device () for separating constituents of a sample fluid () , particularly blood ,{'b': 4', '2, 'having a receiving device () for receiving the sample fluid (),'}{'b': 3', '2', '2', '3', '4, 'having a separating device () for separating constituents of the sample fluid (), the sample fluid () being adapted to be supplied to the separating device () from the receiving device (), and'}{'b': 5', '3', '2, 'having a structure () provided downstream of the separating device () for draining the sample fluid () after constituents have been separated off,'}characterised in that{'b': 4', '7', '2', '13', '2', '2', '3, 'the receiving device () comprises a receiving region () for metering, stopping or delaying the sample fluid () by capillary force and/or a chemical () that can be dissolved by the sample fluid (), in order to pre-treat the sample fluid () before it is supplied to the separating device ().'}27323. The device according to claim 1 , characterised in that the receiving region () is movable over the separating device () claim 1 , particularly foldable claim 1 , and the sample fluid () can thereby be conveyed towards the separating device ().37212. The device according to claim 1 , characterised in that the receiving region () comprises a retaining or metering structure preferably with a plurality of elevations claim 1 , particularly columns () claim 1 , preferably arranged as a field claim 1 , for increasing the capillarity in certain areas and/or for metering the sample fluid ().4791122. The device according to claim 1 , characterised in that the ...

Gas separation membrane and method of manufacture and use

A method including contacting a support with a composition including an aluminum, silicon, phosphorous (SAPO) gel and/or an aluminophosphate (AlPO) gel; heating the support and the composition; and forming SAPO and/or AlPO crystals from the composition on the support; and after forming the crystals, modifying the contact between the support and the composition within a time to inhibit solubilization of a portion of the crystals. A method including seeding a support with an amount of uncalcined silicoaluminophosphate (SAPO) and/or aluminophosphate (AlPO) molecular sieve crystals; after seeding the support, contacting the support with a composition including a SAPO or AlPO gel; and heating the support and the composition to form SAPO and/or AlPO molecular sieve crystals from the gel on the support.

METHOD FOR HIGH-THROUGHPUT SCREENING OF DROPS BY OSMOTIC EXCHANGE AND DENSITY VARIATION

This method comprises bringing drops to be separated into contact with an interface () suitable for allowing an osmotic equilibrium between the content of each drop to be separated. The method comprises an osmotic flow between the drops (A) of the first group of drops through the interface () in order to modify the density of each drop (A) of the first group of drops and the separation of the drops (A, B) according to the density thereof or a combination of the density and the volume in order to isolate the drops (A) of the first group of drops from the drops (B) of a second group of drops. 1202024. A method for selecting at least one first group of drops (A) from among a plurality of drops () present in a continuous phase () , the method comprising the following steps:{'b': 20', '40', '20, 'bringing drops () to be separated into contact with an interface () suitable for allowing an osmotic equilibrium between the content of each drop () to be separated;'}{'b': 20', '40', '20, 'osmotic flow between the drops (A) of a first group of drops and the interface () in order to modify the volume of each drop (A) of the first group of drops,'}{'b': '20', 'characterized in that the osmotic flow step causes a significant variation in the density of each drop (A) of the first group of drops; and'}{'b': 20', '20', '20', '20, 'separating the drops (A, B) according to the density thereof or according to a combination of the density and the volume to isolate the drops (A) of the first group of drops from the drops (B) of a second group of drops.'}2402020. The method according to claim 1 , characterized in that the interface () is formed by at least one other drop () to be separated placed in contact with each drop () to be separated.32020. The method according to claim 2 , characterized in that at least one other drop () to be separated has an inverse density variation relative to the density variation of the drops of the first group of drops (A) during the osmotic exchange. ...

MOLTEN HYDROXIDE MEMBRANE FOR SEPARATION OF ACID GASES FROM EMISSIONS

In one embodiment, a method for separating acidic gases from a gas mixture includes exposing the gas mixture to a separation membrane at an elevated temperature, where the separation membrane includes a porous support and at least one molten alkali metal hydroxide disposed within pores of the porous support. 1. A method for separating acidic gases from a gas mixture , the method comprising:exposing the gas mixture to a separation membrane at an elevated temperature, wherein the separation membrane comprises a porous support and at least one molten alkali metal hydroxide disposed within pores of the porous support.2. The method as recited in claim 1 , comprising reversibly solvating the acidic gases in the at least one molten alkali metal hydroxide at an inlet of the separation membrane.3. The method as recited in claim 1 , comprising releasing solvated ions from an outlet of the separation membrane claim 1 , the solvated ions being anionic forms of the acidic gases.4. The method as recited in claim 1 , comprising applying a potential across the separation membrane.5. The method as recited in claim 1 , comprising applying an alternating current (A/C) across the separation membrane.6. The method as recited in claim 1 , comprising applying a pressure gradient across the separation membrane claim 1 , wherein the pressure gradient is in a range from about 0 atmospheres to about 20 atmospheres.7. The method as recited in claim 1 , wherein the elevated temperature is in a range from about 200 C to about 700 C.8. The method as recited in claim 1 , wherein the acidic gases are gases having a formula selected from a group consisting of: CO claim 1 , NOand SO claim 1 , wherein x is a value in a range from 1-2 claim 1 , y is a value in a range from 1-3 claim 1 , and z is a value in a range from 1-4.9. The method as recited in claim 1 , comprising exposing the separation membrane to a sweep gas on a side of the separation membrane opposite a side to which the gas mixture is ...

MOLTEN HYDROXIDE MEMBRANE FOR SEPARATION OF ACID GASES FROM EMISSIONS

In one embodiment, a separation membrane includes: a porous support structure, wherein the porous support structure comprises a system of continuous pores connecting an inlet of the separation membrane to an outlet of the separation membrane; and at least one alkali metal hydroxide disposed within pores of the porous support structure. Other aspects and embodiments of the disclosed inventive concepts will become apparent from the detailed description, which, when taken in conjunction with the drawings, illustrate by way of example the principles of the invention. 1. A separation membrane , comprising:a porous support structure, wherein the porous support structure comprises a system of continuous pores connecting an inlet of the separation membrane to an outlet of the separation membrane; andat least one alkali metal hydroxide disposed within pores of the porous support structure.2. The separation membrane as recited in claim 1 , wherein the at least one alkali metal hydroxide is selected from a group consisting of lithium hydroxide claim 1 , sodium hydroxide claim 1 , potassium hydroxide claim 1 , rubidium hydroxide claim 1 , and cesium hydroxide.3. The separation membrane as recited in claim 1 , wherein the at least one alkali metal hydroxide comprises a mixture of at least two alkali metal hydroxides selected from a group consisting of: lithium hydroxide claim 1 , sodium hydroxide and potassium hydroxide.4. The separation membrane as recited in claim 3 , the mixture comprising at least three alkali metal hydroxides.5. The separation membrane as recited in claim 1 , wherein the porous support structure comprises a material selected from a group consisting of: inconel 600 claim 1 , grade 316 stainless steel claim 1 , grade 304 stainless steel claim 1 , an alkaline earth oxide claim 1 , yttrium doped zirconium oxide claim 1 , cerium oxide claim 1 , magnesium oxide claim 1 , aluminum oxide claim 1 , calcium carbonate and silicon carbide.6. The separation membrane as ...

SYSTEMS AND METHODS OF MARKER BASED DIRECT INTEGRITY TESTING OF MEMBRANES

The present disclosure relates, according to some embodiments, to methods of marker based direct integrity testing of at least one membrane comprising: (a) dosing a feed fluid of a loop with at least one marker comprising at least one challenge particle, the loop comprising: the feed fluid; a pump comprising an outlet stream; a membrane module comprising the at least one membrane and a membrane module outlet stream, wherein the membrane module is in fluid communication with the outlet stream; a marker recycle stream in fluid communication with the membrane module outlet stream and the pump; and a means to measure particle concentrations; (b) circulating the feed fluid through the membrane module at least once to produce a filtrate comprising a filtered at least one marker; (c) measuring a filtrate particle concentration of the filtered at least one filtered marker in the filtrate to produce a filtrate concentration measurement; and (d) calculating a log removal value from the filtrate concentration measurement and the feed concentration measurement; wherein the log removal value is less than about 3 μm. 1. A marker based direct integrity of at least one membrane testing system comprising:(a) a feed fluid comprising at least one marker, the at least one marker comprising at least one challenge particle; a pump comprising an outlet stream;', 'wherein the membrane module is in fluid communication with the outlet stream; and', 'a membrane module comprising the at least one membrane and a membrane module outlet stream,'}, 'a marker recycle stream in fluid communication with the membrane module outlet stream and the pump; and, '(b) a loop comprising(c) a particle counter,wherein marker based direct integrity membrane testing system is configured to measure a log removal value.2. The system of claim 1 , further comprising:(d) a high solids contact reactor tank in fluid communication in fluid communication with the pump;(e) an inlet configured to receive an influent fluid, ...

BREATHABLE PRODUCT FOR PROTECTIVE MASS TRANSPORTATION AND COLD CHAIN APPLICATIONS

The present invention concerns a breathable product for protective mass transportation and cold chain applications, in particular a reflective sheet for covering temperature sensitive products the reflective sheet having at least a first layer made of a highly reflective moisture vapor permeable substrate having an outer side and an inner side, wherein said inner side comprises in addition at least a metal layer deposited by a PVD process to provide a thermal insulation through high reflection low convection while providing controlled moisture vapor permeability. 1. A sheet for covering products , said sheet comprising at least one layer made of a highly reflective moisture vapor permeable substrate having an outer side and an inner side as seen from the protected product , wherein said inner side comprises in addition at least one metal layer achieving appropriate emissivity to provide a thermal insulation through high reflection and low convection while providing controlled moisture vapor permeability.2. The sheet of claim 1 , wherein the at least one metal layer is deposited by a physical vapor deposition (PVD) process.3. The sheet of claim 1 , wherein the highly reflective moisture vapor permeable substrate is a nonwoven or woven fabric comprising one or more natural or synthetic fibers or filaments.4. The sheet of claim 3 , wherein the highly reflective moisture vapor permeable substrate is a flash-spun nonwoven fabric.5. The sheet of claim 1 , wherein it further comprises a protection layer deposited or coated on said metal layer.6. The sheet of claim 1 , wherein it further comprises on its inner side a controlled moisture vapor permeable flame retardancy layer positioned between its inner side and the metal layer.7. The sheet of claim 6 , wherein the flame retardancy layer comprises a controlled moisture vapor permeable coating or fibers.8. The sheet of claim 1 , wherein it further comprises on its inner side a controlled moisture vapor permeable insulating ...

Carbon dioxide separation member, method for producing same, and carbon dioxide separation module

A carbon dioxide separation member is disclosed, which includes: a hydrophobic porous membrane that has heat resistance to a temperature of 100° C. or higher; and a polymer compound layer that is formed on a surface of the porous membrane, the polymer compound layer including moisture, and at least one carbon dioxide carrier selected from the group consisting of alkali metal carbonates, alkali metal bicarbonates, and alkali metal hydroxides, and having a cross-linked structure that is formed with a specific single crosslinkable group and includes a specific hydrolysis-resistant bond, wherein the carbon dioxide separation member selectively allows a carbon dioxide gas in a mixture of the carbon dioxide gas and a hydrogen gas to permeate therethrough under temperature conditions of from 100° C. to 250° C.

Gas Separation Membrane

A gas separation membrane having a polyimide structure. The polyimide structure is provided to contain a repeating unit represented by general formula (1): (In the formula, R 1 is a divalent organic group and R 2 is a tetravalent organic group), wherein R 1 is a divalent organic group represented by general formula (2): (In the formula, R aa is a single bond, an oxygen atom, a sulfur atom, —SO 2 — group, —CH 2 — group, —C(═O)— group, —C(CH 3 ) 2 — group, —C(CH 3 )(CH 2 CH 3 )— group, —C(CF 3 ) 2 — group or a divalent organic group formed by removing any two hydrogen atoms from a C 3 -C 12 alicyclic hydrocarbon or C 6 -C 25 aromatic hydrocarbon. R ab is a C 1 -C 6 alkyl group. “ac” and “ad” mutually independently represent an integer of 0 to 2 such that 1 ≦ac+ad≦ 4. HFIP represents a —C(CF 3 ) 2 OH group. A straight line that intersects with a wiggly line represents a bonding moiety).

CARBON DIOXIDE SEPARATION MEMBRANE AND METHOD FOR PRODUCING SAME

A carbon dioxide separation membrane according to the present invention includes: an ionic liquid affinitive porous layer (C) having an ionic liquid-containing liquid (A) retained in voids; and an ionic liquid non-affinitive porous layer (B). The ionic liquid affinitive porous layer (C) may contain inorganic materials (for example, metal oxide particles having an average particle size of about 0.001 to 5 μm on a number basis). An average thickness of the ionic liquid affinitive porous layer (C) may be about from 0.01 to 10 μm. The ionic liquid affinitive porous layer (C) may include the ionic liquid-containing liquid (A) at a ratio from 0.1 to 99 parts by volume with respect to 100 parts by volume of voids. It may be a carbon dioxide separation membrane for fertilizing plants with carbon dioxide. The carbon dioxide separation membrane can reduce a size of the carbon dioxide concentrating device and enables smooth operation of the device. 1. A carbon dioxide separation membrane , comprising: an ionic liquid affinitive porous layer having an ionic liquid-containing liquid retained within voids; and an ionic liquid non-affinitive porous layer.2. The carbon dioxide separation membrane according to claim 1 , wherein the ionic liquid affinitive porous layer includes inorganic materials.3. The carbon dioxide separation membrane according to claim 2 , wherein the inorganic materials includes metal oxide particles having an average particle size from 0.001 to 5 μm on a number basis.4. The carbon dioxide separation membrane according to claim 1 , wherein an average thickness of the ionic liquid affinitive porous layer is from 0.01 to 10 μm.5. The carbon dioxide separation membrane according to claim 1 , wherein the ionic liquid-containing liquid includes an ionic liquid claim 1 , the ionic liquid including a cation selected from ammoniums claim 1 , imidazoliums claim 1 , and phosphoniums claim 1 , and an anion selected from a fluorine-containing anion claim 1 , a cyano group- ...

IMMOBILIZED MULTI-LAYER ARTIFICIAL MEMBRANE FOR PERMEABILITY MEASUREMENTS (PAMPA)

With the subject invention, a method is provided for preparing a filter membrane including the steps of dispersing a liquid which is generally hydrophobic into the pores of a porous membrane, and applying a solution containing lipids onto at least a first surface of the porous membrane containing the liquid. Advantageously, the subject invention allows for filter membranes to be prepared which can be stored for periods of time without degradation in performance. The subject invention may have applicability in various contexts, but is well-suited for preparing filter membranes for permeability screening, particularly Parallel Artificial Membrane Permeability Assay (PAMPA). 1. A porous filter membrane prepared by a method comprising:dispersing a hydrophobic liquid into the pores of a porous membrane; andapplying a solution containing lipids onto a first surface of the porous membrane.2. A filter membrane as in claim 1 , wherein the porous membrane includes a second surface spaced from the first surface.3. A filter membrane as in claim 2 , further comprising applying a solution containing lipids onto the second surface.4. A filter membrane as in claim 3 , wherein the first and second surfaces are parallel.5. A filter membrane as in claim 1 , wherein the lipids are amphiphilic constituents of biological membranes.6. A filter membrane as in claim 1 , wherein the lipids are phospholipids.7. A filter membrane as in claim 1 , wherein the lipids are components derived from a blood-brain barrier.8. A filter membrane as claim 1 , wherein the solution contains non-lipid components of biological membranes.9. A filter membrane as in claim 1 , wherein the liquid includes a non-volatile alkane.10. A filter membrane as in claim 9 , wherein the liquid includes hexadecane.11. A filter as in claim 9 , wherein the alkane includes a chain of more than twelve carbon atoms.12. A filter membrane as in claim 1 , wherein the solution includes a solvent in which the lipids are at least ...

PASSIVE DEVICES AND METHODS FOR SEPARATING INITIAL RAIN WATER RUNOFF AND SUBSEQUENT RAIN WATER RUNOFF

A passive device for controlling rain water runoff. The device including: an inlet for directing the rain water runoff; and a mechanism for directing a predetermined initial amount of the rain water runoff to a first outlet and passively directing a subsequent amount of the rain water runoff to a second outlet. 1. A passive device for controlling rain water runoff , the device comprising:an inlet for directing the rain water runoff; anda mechanism for directing a predetermined initial amount of the rain water runoff to a first outlet and passively directing a subsequent amount of the rain water runoff to a second outlet.2. The passive device according to claim 1 , further comprising a first container having a first inlet fluidly connected to the first outlet for accumulating the predetermined initial amount of the rain water runoff3. The passive device according to claim 2 , further comprising a filtering system disposed in one of the first container or between the first outlet and the first inlet.4. The passive device according to claim 2 , wherein the first container further comprises a valve for varying an amount of the predetermined initial amount of the rain water runoff.5. The passive device according to claim 1 , further comprising a second container having a second inlet fluidly connected to the second outlet for accumulating the subsequent amount of the rain water runoff.6. The passive device according to claim 1 , wherein the mechanism comprises:the first outlet and the second outlet comprising a common conduit that is movable between the first outlet and the second outlet;the first container is movable; anda linkage connected to the first container and to the common conduit such that upon the first container accommodating the predetermined initial amount of the rain water runoff, the linkage moves the common conduit from the first outlet to the second outlet.7. The passive device according to claim 6 , further comprising a spring for biasing the first ...

FREE-STANDING LIQUID MEMBRANES FOR SUBSTANCE SEPARATION, FILTRATION, EXTRACTION, AND BLOCKAGE

A free standing liquid membrane is disclosed that can selectively separate objects based on the kinetic energy value of the objects such that either an object having a first kinetic energy value can pass through the free standing liquid membrane while retaining the membrane and/or an object having a second kinetic energy value is prevented from passing through the membrane while retaining the membrane. Advantageously, the free standing liquid membrane can remain intact for seconds to hours with multiple objects passing through the membrane. 1. A method of selectively separating objects , the method comprisingpassing a first object having a first kinetic energy value through a free standing liquid membrane while retaining the membrane and/or preventing a second object having a second kinetic energy value from passing through the membrane while retaining the membrane;wherein the first kinetic energy value is greater than the second kinetic energy value; and wherein the free-standing liquid membrane comprises at least one liquid and at least one surfactant.2. The method of claim 1 , comprising passing the first object through the free standing liquid membrane while retaining the membrane to prevent the second object from passing through the membrane.3. The method of claim 1 , comprising preventing the second object from passing through the free standing liquid membrane while passing the first object through the free standing liquid membrane while retaining the membrane.4. The method of claim 1 , comprising preventing any one or combination of a small molecule claim 1 , virus claim 1 , germ claim 1 , dust claim 1 , insect from passing through the membrane and passing a macroscopic tool through the membrane.5. The method of claim 1 , comprising preventing a gas from passing through the membrane while passing a non-gaseous object through the membrane.6. The method of any one of - claim 1 , comprising passing multiple objects through the free standing liquid membrane and/ ...

Replenishing Liquid Material to Membrane

There is provided a process for effecting separation of at least a gaseous permeate-disposed operative material from a gaseous supply material that is being supplied to a gaseous supply material receiving space that is disposed in mass transfer communication with a permeate receiving space through a membrane, the gaseous supply material including an operative material that defines a gaseous supply material-disposed operative material, and the membrane including a gel. The process includes replenishing liquid material that has become depleted from the gel.

Gas filtering device

The present disclosure relates to a gas filtering device that allows to cover and filter gases emanating from liquid and/or solid substances without the use of auxiliary technologies. The gas filtering device comprises an air tight geomembrane that is adapted to cover and seal the surface from which the gas emanations come from, one or more air permeable filtering cartridge pocket(s) embedded within the air tight geomembrane that are adapted to adopt an opened configuration and a closed configuration, and one or more corresponding filtering cartridge(s) that are releasably secured within the air permeable filtering cartridge pocket.

IONIC LIQUID GRAFTED MESOPOROUS SILICA COMPOSITIONS FOR POLAR GAS/NON-POLAR GAS AND OLEFIN/PARAFFIN SEPARATIONS

A composition comprising a mesoporous silica having grafted therewith an ionic liquid to form a mesoporous silica composition offers desirable levels of functionality, sorption, specific surface functionalization, and selectivity for polar gas/non-polar gas and olefin/paraffin separations. One particular embodiment employs silylated 3,3′-(2,2-bis(hydroxymethyl)propane-1,3-diyl)bis(1-methyl-1H-imidazol-3-ium)bis-((trifluoromethyl-sulfonyl)amide as the ionic liquid. The mesoporous silica composition may be configured as, for example, a membrane. 1. A process for a separation comprising contacting: (1) a silicate composition , comprising a mesoporous silica or mesoporous aluminosilicate having grafted therewith an ionic liquid comprising silylated 3 ,3′-(2 ,2-bis(hydroxymethyl)propane-1 ,3-diyl)bis(1-methyl-1H-imidazol-3-ium)bis((trifluoro-methyl)sulfonyl)-amide; and (2) a mixture having at least two constituents; under conditions such that the at least two constituents are substantially separated from one another.2. The process of claim 1 , wherein the ionic liquid further comprises a salt selected from a silver salt including Ag claim 1 , a copper salt including Cu claim 1 , and a combination thereof.3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. The process of claim 1 , wherein the mesoporous silica composition forms a membrane.9. The process of claim 1 , wherein the constituents are selected from a polar gas claim 1 , a non-polar gas claim 1 , an alkane and an olefin.10. The process of claim 1 , being used in an application selected from gas separations claim 1 , electronic devices claim 1 , drug and fragrance release claim 1 , gas detection claim 1 , heavy metal removal claim 1 , water purification claim 1 , and combinations thereof. The present application claims the benefit of U.S. Provisional Application No. 61/708,219, filed on Oct. 1, 2012.1. Field of the InventionThe present invention relates to the field of mesoporous silica materials ...

Methods to Rapidly Deposit Thin Films (or Coatings) of Microporous Material on Supports Using Thermally Induced Self-Assembly

A method produces metal-organic framework. In one embodiment a method for producing a metal-organic framework comprises contacting a porous support with a solution comprising a metal and a solvent, contacting a porous support with a solution comprising a ligand and a second solvent, and heating the support for a period of time suitable to substantially evaporate the solution and produce crystals on the surface and the pores.

SYSTEM AND METHOD FOR CONTROLLING OUTLET FLOW OF A DEVICE FOR SEPARATING CELLULAR SUSPENSIONS

A system for separating a suspension of biological cells is disclosed comprising a single-use fluid circuit and a durable hardware component. The fluid circuit comprises a separator having a housing that includes an inlet for introducing the suspension of biological cells into the gap, a first outlet in communication with the gap for flowing a first type of cells from the separator, and a second outlet in communication with the second side of the filter membrane for flowing a second type of cells from the separator. The hardware component comprises a pump for flowing the suspension of biological cells to the inlet of the separator and at least one flow control device associated with the first outlet and the second outlet of the separator for selectively opening and closing the outlets so as to permit one of the first type of cells and the second type of cells to flow out of the separator in accordance with a predetermined duty cycle equal to the ratio of a target flow rate of first type of cells through the first outlet to the predetermined inlet flow rate. 1. A method for separating a suspension of biological cells using a system comprising a fluid circuit comprising a separator having a housing with an inlet for introducing the suspension of biological cells into the separator , a first outlet in communication with the separator for flowing a first type of cells from the separator and a second outlet in communication with separator for flowing a second type of cells from the separator , and a hardware component comprising a pump for flowing the suspension of biological cells to the inlet of the separator , at least one flow control device associated with the first outlet and the second outlet of the separator for selectively opening and closing the first and second outlets so as to permit one of the first type of cells and the second type of cells to flow out of the separator , the method comprising:a) operating the pump so as to flow the suspension of biological ...

REPLENISHING LIQUID MATERIAL TO MEMBRANE

There is provided a process for effecting separation of at least a gaseous permeate-disposed operative material from a gaseous supply material that is being supplied to a gaseous supply material receiving space that is disposed in mass transfer communication with a permeate receiving space through a membrane, the gaseous supply material including an operative material that defines a gaseous supply material-disposed operative material, and the membrane including a gel. The process includes replenishing liquid material that has become depleted from the gel. 1. A process for effecting separation of at least a gaseous permeate-disposed operative material from a gaseous supply material that is being supplied to a gaseous supply material receiving space that is disposed in mass transfer communication with a permeate receiving space through a membrane , the gaseous supply material including an operative material that defines a gaseous supply material-disposed operative material , and the membrane including a gel , comprising:supplying the gaseous supply material to the gaseous supply material receiving space, and while the supplying of the gaseous supply material to the gaseous supply material receiving space is being effected, effecting permeation of at least a separation fraction of the gaseous supply material-disposed operative material from the gaseous supply material receiving space, through the membrane, and into the permeate receiving space, wherein the permeation of at least a separation fraction of the gaseous supply material-disposed operative material to the permeate receiving space effects production of the gaseous permeate-disposed operative material, and wherein the permeation is effected in response to a differential in chemical potential of the operative material, as between the gaseous supply material receiving space and the permeate receiving space, and wherein the permeation includes transporting of a carrier-transported fraction of the gaseous supply ...

Free-standing liquid membranes for substance separation, filtration, extraction, and blockage

A free standing liquid membrane is disclosed that can selectively separate objects based on the kinetic energy value of the objects such that either an object having a first kinetic energy value can pass through the free standing liquid membrane while retaining the membrane and/or an object having a second kinetic energy value is prevented from passing through the membrane while retaining the membrane. Advantageously, the free standing liquid membrane can remain intact for seconds to hours with multiple objects passing through the membrane.

SYSTEMS AND METHODS OF MARKER BASED DIRECT INTEGRITY TESTING OF MEMBRANES

The present disclosure relates, according to some embodiments, to methods of marker based direct integrity testing of at least one membrane comprising: (a) dosing a feed fluid of a loop with at least one marker comprising at least one challenge particle, the loop comprising: the feed fluid; a pump comprising an outlet stream; a membrane module comprising the at least one membrane and a membrane module outlet stream, wherein the membrane module is in fluid communication with the outlet stream; a marker recycle stream in fluid communication with the membrane module outlet stream and the pump; and a means to measure particle concentrations; (b) circulating the feed fluid through the membrane module at least once to produce a filtrate comprising a filtered at least one marker; (c) measuring a filtrate particle concentration of the filtered at least one filtered marker in the filtrate to produce a filtrate concentration measurement; and (d) calculating a log removal value from the filtrate concentration measurement and the feed concentration measurement; wherein the log removal value is less than about 3 μm. 1. A method of marker based direct integrity testing of at least one membrane comprising: the feed fluid;', 'a pump comprising an outlet stream;', 'wherein the membrane module is in fluid communication with the outlet stream;', 'a membrane module comprising the at least one membrane and a membrane module outlet stream,'}, 'a marker recycle stream in fluid communication with the membrane module outlet stream and the pump; and', 'a means to measure particle concentrations;, '(a) dosing a feed fluid of a loop with at least one marker comprising at least one challenge particle, the loop comprising(b) circulating the feed fluid through the membrane module at least once to produce a filtrate comprising a filtered at least one marker;(c) measuring a filtrate particle concentration of the filtered at least one filtered marker in the filtrate to produce a filtrate ...

Ceramic material

The present invention relates to method for forming a porous ceramic material, the method comprising the steps of: providing a suspension of polymer-coated ceramic particles in a first solvent; contacting the suspension with a second solvent, whereby a ceramic material precursor is formed from the polymer and ceramic particles, heating the ceramic material precursor to at least partially decompose the polymer within the precursor into solid deposits, and then sintering the ceramic material precursor to form a porous ceramic material.

MICROCAPSULE FABRIC FOR ABSORPTION AND RELEASE

A permeable microcapsule embedded fabric acts as a sorbent that creates mold-able, variable geometry fabrics for static or dynamic use. The fabric is composed of micro encapsulated solvent spheres held together by structural members. The fabric provides an excellent means to absorb and separate gases and/or liquids, particularly to separate carbon dioxide from flue gases. 1. A fabric for removing carbon dioxide from a gas containing the carbon dioxide , comprising:a web of support material;spherical capsules contained in said web;a polymer surface layer on said spherical capsules, wherein said polymer surface layer is permeable to carbon dioxide; andstripping solvents encapsulated within said polymer surface layer of said spherical capsules, wherein said polymer surface layer absorbs the carbon dioxide.2. The fabric for removing carbon dioxide from a gas containing the carbon dioxide of wherein said web of support material comprises the spherical capsules directly welded together.3. The fabric for removing carbon dioxide from a gas containing the carbon dioxide of wherein said web of support material comprises fibers.4. The fabric for removing carbon dioxide from a gas containing the carbon dioxide of wherein said web of support material comprises tubes.5. The fabric for removing carbon dioxide from a gas containing the carbon dioxide of wherein said web of support material comprises polymer material.6. The fabric for removing carbon dioxide from a gas containing the carbon dioxide of wherein said polymer surface layer is made of a porous solid.7. The fabric for removing carbon dioxide from a gas containing the carbon dioxide of wherein said polymer surface layer is made of polystyrene claim 1 , polyethylene claim 1 , polypropylene claim 1 , silicones claim 1 , or nylon.8. The fabric for removing carbon dioxide from a gas containing the carbon dioxide of wherein said stripping solvents are powder.9. The fabric for removing carbon dioxide from a gas containing the ...

NANO WIRE MICROPOROUS STRUCTURE

A microporous structure includes an array of nano wires and a coating about the nano wires of the array. The coating defines pores between the nano wires. 1. An apparatus comprising:an array of joined nano wires; anda coating about the nano wires, the coating defining pores between the nano wires to form a microporous structure.2. The apparatus of further comprising an organic phase supported within the pores to form a supported liquid membrane.3. The apparatus of further comprising a substrate joining the nano wires of the array.4. The apparatus of claim 3 , wherein the substrate comprises a channel containing the array of nano wires.5. The apparatus of claim 1 , wherein the coating joins the nano wires of the array.6. The apparatus of claim 1 , wherein the nano wires of the array are bent.7. A sample preparation device comprising:a donor phase microfluidic channel;an acceptor phase microfluidic channel; and [ an array of nano wires; and', 'a coating about the nano wires, the coating defining pores between the nano wires; and, 'a microporous structure comprising, 'an phase supported within the pores., 'a supported liquid membrane between the donor phase microfluidic channel and the acceptor phase microfluidic channel, and supported liquid membrane comprising8. A method comprising:forming an array of nano wires upon a substrate;coating the nano wires of the array to form pores between the array of nano wires.9. The method of claim 8 , wherein the nano wires are coated such that coatings of different nano wires interconnect the different nano wires.10. The method of further comprising adjustably controlling a thickness of the coating to adjustably control a size of the pores of the microporous structure.11. The method of further comprising adjustably controlling a density of the array of nano wires upon the substrate to adjustably control a density of the pores of the microporous structure.12. The method of further comprising adjustably controlling a density of the ...

System and Method for Controlling Outlet Flow of a Device for Separating Cellular Suspensions

A system for separating a suspension of biological cells is disclosed comprising a single-use fluid circuit and a durable hardware component. The fluid circuit comprises a separator having a housing that includes an inlet for introducing the suspension of biological cells into the gap, a first outlet in communication with the gap for flowing a first type of cells from the separator, and a second outlet in communication with the second side of the filter membrane for flowing a second type of cells from the separator. The hardware component comprises a pump for flowing the suspension of biological cells to the inlet of the separator and at least one flow control device associated with the first outlet and the second outlet of the separator for selectively opening and closing the outlets so as to permit one of the first type of cells and the second type of cells to flow out of the separator in accordance with a predetermined duty cycle equal to the ratio of a target flow rate of first type of cells through the first outlet to the predetermined inlet flow rate. 1. A method for separating a suspension of biological cells comprising at least one type of cells suspended in a non-cellular fluid using a system comprising a fluid circuit comprising a separator having a housing with an inlet for introducing the suspension of biological cells into the separator , a first outlet in communication with the separator for flowing the cells from the separator and a second outlet in communication with separator for flowing the non-cellular fluid from the separator , and a hardware component comprising a pump for flowing the suspension of biological cells to the inlet of the separator , at least one flow control device associated with the first outlet and the second outlet of the separator for selectively opening and closing the first and second outlets so as to permit the cells and the non-cellular fluid to flow out of the separator , the method comprising:a) operating the pump so as ...

Method for making two-dimensional materials and composite membranes thereof having size-selective perforations

Two-dimensional materials having apertures in their basal planes are described, where at least a portion of the apertures are occluded with a selectively introduced occluding moiety. Occluding moieties that pass into apertures function to occlude apertures. Composite membranes are described having a porous substrate with a two-dimensional material disposed on the membrane and covering only a portion of the pores, wherein at least a portion of uncovered substrate pores are occluded. Pore occlusion can be achieved by introduction of an occluding particle optionally followed by chemical reaction, deformation or swelling of the particle to facilitate occlusion of pores. Two-dimensional materials covering substrate pores can be size-selected and optionally functionalized providing for selective permeability through composite membranes. Methods for occluding defects and apertures in two-dimensional materials and for selectively occluding pores in composite membranes are provided. Selectively occluded materials and membranes are useful in filtration and other applications.

METHOD FOR PRODUCING IONIC LIQUID-CONTAINING STRUCTURE, AND IONIC LIQUID-CONTAINING STRUCTURE

An object of the present invention is to provide a method which can produce an ionic liquid-containing network structure with high productivity. A method for producing an ionic liquid-containing structure, which includes an inorganic particle network structure forming step of forming a network structure by inorganic particles in the presence of an ionic liquid, and a polymer network structure forming step of forming a network structure by polymerization of a monomer component containing at least a polar group-containing monomer in the presence of the ionic liquid is provided. 1. A method for producing an ionic liquid-containing structure , comprising:an inorganic particle network structure forming step of forming a network structure by inorganic particles in the presence of an ionic liquid, anda polymer network structure forming step of forming a network structure by polymerization of a monomer component containing at least a polar group-containing monomer in the presence of the ionic liquid.2. The production method according to claim 1 , wherein the inorganic particles include inorganic oxide particles.3. The production method according to claim 2 , wherein the inorganic oxide particles include silica particles.4. The production method according to claim 1 , wherein the inorganic particles have a specific surface area of 20 to 300 m/g.5. The production method according to claim 1 , wherein the inorganic particles have an average primary particle diameter of 1 to 100 nm.6. The production method according to claim 1 , wherein the polar group of the polar group-containing monomer is an atomic group containing an N atom or an O atom.7. The production method according to claim 1 , wherein an amount of the ionic liquid to be used is 5 to 95% by mass based on 100% by mass of components constituting the ionic liquid-containing structure.8. The production method according to claim 1 , which further comprises claim 1 , before the inorganic particle network structure forming ...

Fluid separation membrane

The present invention provides a fluid separation membrane that can maintain separation performance for a long period of time. The present invention provides a fluid separation membrane including a separation layer including a dense layer, wherein 2 to 10,000 ppm of a total of a monocyclic or bicyclic aromatic compound being liquid or solid at 16° C. under atmospheric pressure and 10 to 250,000 ppm of water are adsorbed.

Process for separation of unsaturated hydrocarbons

There is described the separation of aliphatically unsaturated hydrocarbons from mixtures by the combined use of liquid barrier permeation and metal complexing techniques. The liquid barrier is in contact with a film membrane, and the barrier contains complex-forming metal ions in aqueous solution. The metal ions may be, for example, noble metal, mercuric, cuprous or other metal ions, and mixtures of these metal ions, with or without other cations, may be used. The separation of ethylene from ethane and methane is of particular interest.

Process for separating gas by diffusion

There is described the separation of aliphatically-unsaturated hydrocarbons of two to four carbon atoms from gaseous mixtures by the combined use of liquid barrier permeation and metal complexing techniques. The liquid barrier is in contact with a film membrane, and the barrier contains complex-forming metal ions in aqueous solution. The film membrane is contacted with a swelling agent to increase the selectivity of the separation and, preferably, increase permeation by the aliphatically unsaturated hydrocarbon to be separated. The metal ions in the liquid barrier may be, for example, noble metal, nickel, mercurous, cuprous or other metal ions, and mixtures of the metal ions, with or without other cations, may be used. The separation of ethylene from ethane and methane is of particular interest.

Process of separating complexable materials employing semipermeable polymer film

There is described the preparation of hydrophilic, semipermeable film membranes having an increase in pores and containing complex-forming metals. The films can be formed from solutions having film-forming material and pore-forming material dissolved in a solvent. The films can be useful for separating a component, e.g. an aliphatically-unsaturated hydrocarbon, from mixtures by the combined use of liquid barrier permeation and metal complexing techniques. The liquid barrier is at least partially within the hydrophilic film membrane during use, and the barrier contains complex-forming metal ions in aqueous solution. The metal ions may be, for example, noble metal, nickel, mercurous, cuprous or other metal ions, and mixtures of these metal ions, and the aqueous solution may contain other cations. The separation of ethylene from ethane and methane is of particular interest.

Membrane process and product

There is described an improved membrane-liquid barrier system of the type containing complex-forming, silver-containing ion component in an aqueous solution, and an improved process in which the membrane-liquid barrier combination can be employed to separate olefinically-unsaturated hydrocarbons. The membrane is in contact with an aqueous solution having dissolved therein complex-forming silver-containing ions, and further includes small but effective amounts of hydrogen peroxide to retard reduction of the ionic silver to elemental silver.

Membrane process for separating materials

A process is disclosed for separating components, e.g., olefinically-unsaturated hydrocarbons, from mixtures with other materials by liquid barrier permeation and metal-complexing techniques using a semi-permeable membrane and a partial pressure differential across the membrane for the material being separated. The process is characterized by the use of elevated pressure on the feed side of the membrane, preferably at least about 200 psig, a low total pressure differential, if any, across the membrane, and preferably a partial pressure of the material being separated on the exit side of the membrane which is at least about 20 psi less than on the feed side. The separated material may be removed with advantage by the use of a liquid solvent in which the material is soluble, and preferably the concentration of the material in the solvent is up to about 25 weight percent of saturation when the solvent is charged to the exit side of the membrane. The separation of ethylene from its mixture with methane and ethane is of particular interest.

Separation d'hydrocarbures a non saturation aliphatique

Process for separating a material from a mixture of mixture which comprises employing a solid water-insoluble, hydrophilic, semi permeable membrane

Novel gas separation film membranes are made by grafting alphaolefinic, polymerizable monomers having hydrophilic functional groups and having, e.g., about from 2 to about 12 carbon atoms, to nylon, and forming a film from the resulting copolymers. A complex-forming metal component which is active in the presence of water is provided in the film. The invention also includes the process of separating components from gaseous mixtures using the membranes. Of particular interest is the separation of aliphatically-unsaturated hydrocarbons from mixtures, for example, the separation of ethylene from one or more of ethane, methane and hydrogen.

Fluid separation process and membrane

There is described an improved separation membrane-liquid barrier system of the type containing complex-forming, metal-containing ionic components, and an improved separation process in which the membrane-liquid barrier is employed. The membrane is in contact with an aqueous liquid barrier containing cuprous ions, such as a cuprous salt or a cuprous salt complex, e.g. a CuCl complex, preferably a CuCl--NH 4 Cl--HCl complex, and the barrier is in contact with a reducing agent that retards the complexing Cu + ion from being oxidized to Cu + 2 . The reducing agent is relatively stable when positioned in the membrane and is not unduly oxidized by air nor does it unduly interfere with the essential function of the cuprous ions during the separation process. Elemental copper may function as a reducing agent that retards oxidation of Cu + ion to Cu + 2 . The liquid barrier containing complex-forming cuprous ions can be subjected to a strong reducing agent during the separation process to reduce some of the cuprous ions to elemental copper.

Use of aqueous, non-sweep liquid during membrane separation

A material is separated from a fluid mixture by contacting the mixture containing the material with a first side of essentially solid, water-insoluble, hydrophilic, semi-permeable membrane in contact with an aqueous liquid barrier having ions which combine with the material to be separated to form a water-soluble complex. The partial pressure of the material on a second side of the semi-permeable membrane is sufficiently less than the partial pressure of the material in the mixture to provide separated material on the second side of the membrane. The separated material can be removed from the vicinity of the second side of the membrane by a gas stream. The second side of the membrane is contacted with an aqueous liquid medium to reduce the loss of the aqueous liquid barrier from the membrane which may otherwise decrease in separation efficiency during use due to water losses. The gas stream used to remove the separated material may be supersaturated with the aqueous medium, e.g. water, and may contact the membrane with the aqueous medium via condensation. Alternatively, the aqueous medium such as water may be applied by a continuous or intermittent film, spray or mist. The process is particularly useful for separating olefins, especially ethylene.

Facilitated separation of a select gas through an ion exchange membrane

There is described the selective separation of a gas from a gaseous mixture utilizing a suitable ion-exchange membrane having specific counter-ions electrostatically retained therein, which counter-ions react reversibly with the specific gas molecules to be separated. By this method, the membrane exhibits high selectivity and facilitated transport of the gas across the membrane effecting superior separation of the select gas from the gas mixture.

Immobilized liquid membrane

The present invention is a single-ply immobilized liquid membrane comprising an aqueous liquid membrane immobilized within a hydrophobic microporous support, and a method of preparing such an immobilized liquid membrane. The present invention also includes a method of preparing an ultrathin single-ply immobilized liquid membrane.

Immobilized liquid membrane

The present invention is a single-ply immobilized liquid membrane comprising an aqueous liquid membrane immobilized within a hydrophobic microporous support.

Facilitated liquid membranes for olefin/paraffin gas separations and related process

A facilitated liquid membrane for the separation of olefins from a gaseous feed stream comprises a porous support structure (10, 15) and a liquid membrane which comprises an aqueous solution containing a metal salt facilitator capable of coordinating with olefin gases, and an alkyl carbonate co-solvent. A process for the separation of olefins from gaseous feed streams comprises the steps of passing a gaseous feed stream over one side of a facilitated liquid membrane according to the present invention and collecting the olefins on the other side of the membrane.

Facilitated transport membranes for an alkene Hydrocarbon separation

There is provided a facilitated transport membrane for separating alkene hydrocarbon comprising a solid polymer electrolyte layer consisting a transition metal salt, a polymer, an ionic liquid, and a porous supported membrane. The facilitated transport membrane of the present invention shows high selectivity and permeability for the alkene hydrocarbon. It further maintains the complex's activity as a carrier during a long operation, wherein the complex is formed by an interaction of the transition metal ion with the polymer ligand within the solid polymer electrolyte.

Replenishing liquid material to membrane

There is provided a process for effecting separation of at least a gaseous permeate-disposed operative material from a gaseous supply material that is being supplied to a gaseous supply material receiving space that is disposed in mass transfer communication with a permeate receiving space through a membrane, the gaseous supply material including an operative material that defines a gaseous supply material-disposed operative material, and the membrane including a gel. The process includes replenishing liquid material that has become depleted from the gel.

High selectivity membranes for hydrogen sulfide and carbon dioxide removal from natural gas

A thin film composite gas separation membrane comprising a polyether block amide copolymer coating layer and a nanoporous asymmetric support membrane with nanopores on the skin layer surface of the support membrane and gelatin polymers inside the nanopores on the skin layer surface of the support membrane. A method for making the thin film composite gas separation membrane is provided as well as the use of the membrane for a variety of separations such as separations of hydrogen sulfide and carbon dioxide from natural gas, carbon dioxide removal from flue gas, fuel gas conditioning, hydrogen/methane, polar molecules, and ammonia mixtures with methane, nitrogen or hydrogen and other light gases separations, but also for natural gas liquids recovery and hydrogen sulfide and carbon dioxide removal from natural gas in a single step.

Semi-permeable membrane extraction

Gas separation by differential permeation

Liquid membranes for use in the separation of gases

Procede de separation d'hydrocarbures non satures

Membrane process for separating materials

PROCESS FOR THE SEPARATION OF ALIPHATICALLY UNSATURATED HYDROCARBONS

Water-free hydrocarbon separation membrane and process

Water-free membranes suitable for separating aliphatically unsaturated hydrocarbons from saturated hydrocarbons, particularly ethylene from ethane, comprise a separation barrier material of metal ions dissolved in one or more polyhydric alcohols incorporated into the pores or on the surface of a porous support. The water-free membrane provides for facilitated transport of the unsaturated hydrocarbons across the membrane by virtue of the metal ions in the separation barrier material interacting selectively and reversibly with the unsaturated species.

Process for isolating unsaturated c2-c8 aliphatic hydrocarbons

1431946 Separating hydrocarbons STANDARD OIL CO 4 May 1973 [12 May 1972 13 Sept 1972] 21365/73 Heading C5E Aliphatically unsaturated hydrocarbon having 2 to 8 carbon atoms is separated from a mixture by selectively transferring it across a barrier which comprises an aqueous component containing metal ions which combine with the unsaturated hydrocarbon to form a water soluble complex and a semi-permeable member which is solid, water-insoluble and impermeable to the aqueous component; the partial pressure of the unsaturated hydrocarbon on the second side of the barrier being maintained lower than that on the first side so that the unsaturated hydrocarbon is released on the second side of the barrier. The metal ions can be silver, zinc or cuprous ammonium and the aqueous component can comprise silver nitrate, optionally together with UO 2 (NO 3 ) 2 or a nitrate of Cr, Ni, Zn, Cd, Al, Li, Sr, Ca, Mg, Co, Fe<SP>3+</SP>, Na, Pb, NH 4 or K. The semi-permeable membrane can comprise polyurethane, nylon, sodium cellulose xanthate or an ethylene glycol monomethacrylate polymer. The process can be used to separate acetylene and/or ethylene from mixtures which also comprise methane and/or ethane. Many examples are given in which the aqueous component is in the form of a liquid covering the first side of the semi-permeable membrane which is either in the form of a flat sheet or a hollow tube immersed in the liquid; alternatively the aqueous component can be held within the semi-permeable membrane, e.g. by being absorbed therein or absorbed on a material such as cellulose acetate which is held between two semi-permeable sheets.

Method of making a semi-permeable, essentially water-insoluble, hydrophilic nylon membrane and resultant product

There is described the preparation of hydrophilic, semi-permeable film membranes having an increase in pores and containing complex-forming metals. The films can be formed from solutions having film-forming material and pore-forming material dissolved in a solvent. The films can be useful for separating a component, e.g. an aliphatically-unsaturated hydrocarbon, from mixtures by the combined use of liquid barrier permeation and metal complexing techniques. The liquid barrier is at least partially within the hydrophilic film membrane during use, and the barrier contains complex-forming metal ions in aqueous solution. The metal ions may be, for example, noble metal, nickel, mercurous, cuprous or other metal ions, and mixtures of these metal ions, and the aqueous solution may contain other cations. The separation of ethylene from ethane and methane is of particular interest.

Selective-permeation gas-separation process and apparatus

A permeant gas is selectively transferred from a feed-gas mixture which comprises the permeant gas and at least one other component to an output fluid by the process of the invention. The process involves introducing a selective-permeation liquid into a permeation-transfer chamber. A gas-depletion channel and a gas-enrichment channel pass through the permeation chamber and are separated from the chamber respectively by porous walls. The selective-permeation liquid contacts the porous walls but does not flow into the gas-depletion or gas-enrichment channels. The feed-gas mixture is introduced into the gas-depletion channel so that permeant gas in the mixture can pass through the pores of the walls of the channel into the selective-permeation liquid and from the selective-permeation liquid through the pores of the walls of the gas-enrichment channel into the gas-enrichment channel. Permeant gas is withdrawn from the gas-enrichment channel and a stream of gas depleted in the permeant gas is withdrawn from the gas-depletion channel. A gas-transfer unit permits the process of the invention to be carried out effectively.

Filled membranes for separation of polar from non-polar gases

Gas permeable, filled pore membranes in which the pores are filled with a substantially non-aqueous mixture of a polyhydroxy solvent and a gas carrier. A typical example is a membrane filled with glycerol and triethanolamine.

Separating process oif unsaturated hydro carbons

Unsatd. aliphatic hydrocarbons were sepd. from gaseous C2-8 hydrocarbon mixts. by contacting the gaseous mixts. with a liq. barrier consisting of complex-forming metal ions in aq. soln. and supported with water insoluble semipermeable membrane which is substantially solid and impermeable to liq. barrier. The partial pressure of gas-fed cell to evolve the unsatd. hydrocarbon from aq. barrier was higher than that of the other.

Patent FR2400384B1

Immobilized liquid membrane

The present invention is a single-ply immobilized liquid membrane comprising an aqueous liquid membrane immobilized within a hydrophobic microporous support, and a method of preparing such an immobilized liquid membrane. The present invention also includes a method of preparing an ultrathin single-ply immobilized liquid membrane.

Acid gas scrubbing by composite solvent-swollen membranes

A composite immobilized liquid membrane suitable for acid gas scrubbing is disclosed. The membrane is a solvent-swollen polymer and a microporous polymeric support, the solvent being selected from a class of highly polar solvents containing at least one atom selected from nitrogen, oxygen, phosphorous and sulfur, and having a boiling point of at least 100°C and a solubility parameter of from about 7.5 to about 13.5 (cal/cm³-atm) 1/2 . Such solvents are homogeneously distributed through the solvent-swollen polymer from 20% to 95% by weight. Also disclosed are methods of acid gas scrubbing of high- and low-Btu gas effluents with such solvent-swollen membranes.

Gas separation by composite solvent-swollen membranes

A composite immobilized liquid membrane suitable for acid gas scrubbing and oxygen/nitrogen separation is disclosed. The membrane is a solvent-­swollen polymer and a microporous support, the solvent being selected from a class of highly polar solvents containing at least one atom selected from nitrogen, oxygen, phosphorous and sulfur, and having a boiling point of at least 100°C and a solubility parameter of from about 7.5 to about 13.5 (cal/cm³-atm) 1/2 . Such solvents are homogeneously distributed through the solvent-swollen polymer from 20% to 95% by weight. The microporous support may be polymeric or inorganic material.

Totally enclosed liquid permselective membrane

Membrane separation

The separation of mixtures; in which the various elements have different degrees of solubility in a liquid is enhanced by concurrently permeating vapor from said liquid and the membrane must have an attraction for said liquid.

Immobilized liquid membrane

Acid gas scrubbing by composite solvent-swollen membranes

Gas separation by composite solvent swollen membranes

Patent JPH0480725B2

Immobilized liquid membrane

Facilitated transport membranes for an alkene hydrocarbon separation

There is provided a facilitated transport membrane for separating alkene hydrocarbon comprising a solid polymer electrolyte layer consisting a transition metal salt, a polymer, an ionic liquid, and a porous supported membrane. The facilitated transport membrane of the present invention shows high selectivity and permeability for the alkene hydrocarbon. It further maintains the complex's activity as a carrier during a long operation, wherein the complex is formed by an interaction of the transition metal ion with the polymer ligand within the solid polymer electrolyte.

Procede de separation d'un gaz choisi d'un melange de gaz au moyen d'une membrane echangeuse d'ions

PROCEDE SUPPRIMANT LES LIMITATIONS INHERENTES AUX MEMBRANES A LIQUIDE IMMOBILISE. IL CONSISTE: A.A FOURNIR UNE MEMBRANE ECHANGEUSE D'IONS SEMI-PERMEABLE INCLUANT DES CONTRE-IONS QUI REAGISSENT SELECTIVEMENT AVEC DES MOLECULES D'UN GAZ CHOISI CONTENU DANS UN MELANGE GAZEUX; B.A METTRE EN CONTACT UN PREMIER COTE DE LA MEMBRANE SEMI-PERMEABLE AVEC UN MELANGE CONTENANT LE GAZ CHOISI; ET C.FOURNIR UN MOYEN D'ELIMINER LE GAZ DE PERMEATION DU COTE OPPOSE DE LA MEMBRANE, ASSURANT AINSI A TRAVERS LA MEMBRANE UN GRADIENT DE PRESSION PARTIEL DES GAZ A SEPARER, ET EN PARTICULIER DU GAZ DE PERMEATION. APPLICATION A LA SEPARATION DES OLEFINES.

Method for gas separation

A process for separating a gas from a mixture of gases comprises passing the gas mixture over a membrane, selectively permeable by the gas being separated, owing to the occurrence of one or more reversible oxidation-reduction reactions between a continuous layer of active molten material, immobilized in a rigid, porous, inert support therefor, and the gas being separated.

Method for gas separation

The present invention is a process for separating one or more components of a gas mixture. The process comprises passing the gas mixture over a membrane, which is selectively permeable to the component being separated, due to one or more reversible reactions between the component desired to be separated and a layer of active molten material immobilized in a suitable support material and/or encapsulated in a non-porous gas permeable polymer material.

Molten salt hydrate membranes for the separation of gases

The present invention is a membrane and a process for separating at least one component from at least one other component in a gas mixture. A gaseous mixture is passed over a membrane having a thin film of a molten salt hydrate which is selectively permeable to at least one component in the gaseous mixture.

Membrane process for separating materials

Werkwijze voor het uit een fluide mengsel afscheiden van een materiaal.

Procede de separation

MEMBRANE PROCESS FOR MATERIAL SEPARATION

Mebranverfahren zur abtrennung eines gasfoermigen aliphatisch ungesaettigten kohlenwasserstoffes, wie z.b. aethylen, oder von gemischen solcher kohlenwasserstoffe aus einem gasgemisch

Liquid/liquid extractions with microporous membranes

The rate of mass transfer in liquid/liquid extractions can be increased by the appropriate selection of a solubilizing liquid to wet a microporous membrane. A solute is transferred between immiscible liquids across the membrane where and interface between the liquids is immobilized at a surface of the membrane.

Facilitated liquid membranes for olefin/paraffin gas separations and related process

A process for the separation of olefins from gaseous feed streams comprises the steps of passing a gaseous feed stream over one side of a facilitated liquid membrane which comprises a porous support member (15) and a liquid membrane comprising an aqueous solution containing a metal salt facilitator e.g. silver nitrate capable of coordinating with olefin gases and an alkyl carbonate e.g. ethylene carbonate co-solvent, and collecting the olefins on the other side of the membrane.

Process and device for the separation of an unsaturated hydrocarbon from a fluid mixture with other hydrocarbons

A fluid mixture from which an unsaturated hydrocarbon has to be separated, is passed in the first stage at superatmospheric pressure to one side of a first semiselective gas separation membrane with a non-porous active layer, and a liquid complexing agent is passed along the other side of said first membrane, where said unsaturated hydrocarbon is bound through complexation in the interface of membrane and complexing agent. In the second stage said unsaturated hydrocarbon is dissociated from the complexing agent through temperature increase, the mixture of complexing agent and dissociated unsaturated preferably is passed at superatmospheric pressure to one side of a second semiselective membrane with a non-porous active layer and the unsaturated hydrocarbon migrates to the other side of the membrane and is discharged. Finally, the complexing agent is recycled.

Facilitated liquid membranes for olefin/paraffin gas separations and related process

Werkwijze en inrichting voor het afscheiden van een component uit een fluidummengsel.

Process and device for the separation of an unsaturated hydrocarbon from a fluid mixture with other hydrocarbons

A fluid mixture from which an unsaturated hydrocarbon has to be separated, is passed in the first stage at superatmospheric pressure to one side of a first semiselective gas separation membrane with a non-porous active layer, and a liquid complexing agent is passed along the other side of said first membrane, where said unsaturated hydrocarbon is bound through complexation in the interface of membrane and complexing agent. In the second stage said unsaturated hydrocarbon is dissociated from the complexing agent through temperature increase, the mixture of complexing agent and dissociated unsaturated preferably is passed at superatmospheric pressure to one side of a second semiselective membrane with a non-porous active layer and the unsaturated hydrocarbon migrates to the other side of the membrane and is discharged. Finally, the complexing agent is recycled.

Mebranverfahren zur abtrennung eines gas- foermigen aliphatisch ungesaettigten kohlen- wasserstoffes, wie z.b. aethylen, oder von gemischen solcher kohlenwasserstoffe aus einem gasgemisch

Membrane process for separating materials

PROCESS FOR SEPARATING A MATERIAL FROM A FLUID MIXTURE CONTAINING IT

L'invention concerne un procédé pour séparer une matière d'un mélange fluide la contenant Suivant ce procédé on met ce mélange en contact avec une membrane semi-perméable solide insoluble dans l'eau se trouvant au contact d'un obstacle aqueux liquide contenant des ions métalliques formant un complexe avec le constituant à séparer. Ce procédé peut être appliqué pour isoler, dans l'industrie gazière, l'éthylène de mélanges gazeux. The invention relates to a method for separating a material from a fluid mixture containing it. According to this method, this mixture is brought into contact with a solid semi-permeable membrane insoluble in water which is in contact with a liquid aqueous obstacle containing metal ions forming a complex with the component to be separated. This process can be applied to isolate ethylene from gas mixtures in the gas industry.

Verfahren zur abtrennung aliphatisch- -ungesaettigter kohlenwasserstoffe mit 2 bis 8 kohlenstoffatomen

Process for separating one or more components of a gaseous mixture

Novel separation film membranes are made with cross-linked hydrophilic polyvinyl alcohol and nylon, and the films contain complex-forming metal components which are active in the presence of water. The polyvinyl alcohol is cross-linked by reaction with a polycarboxylic acid. The invention includes the membranes, their method of manufacture, and the method of using them to separate one or more components of a gaseous mixture.

Diffusional gas transfer system and method of using same

A diffusional gas transfer system and method having a membrane disposed between a first gas domain and a second gas domain. The first gas domain includes a first mechanism for directing a first environmental gas flow transversely over and in contact with a first surface of the membrane. The second gas domain includes a second mechanism for directing a second environmental gas flow transversely over and in contact with a second surface of the membrane. The membrane is a diffusional gas transfer medium having a multiplicity of tortuous pathways extending from the first surface of the membrane to the second surface of the membrane. The void volume fraction of the membrane is at least 0.2. The membrane is capable of substantially blocking the transfer of particles from the first gas domain to the second gas domain, while permitting the diffusion of gases between the first and second gas domains, and the first gas domain is maintained at a pressure higher than the second gas domain.

Способ выделения олефинов из газообразного сырьевого потока

Сущность изобретения: способ выделения олефинов из газообразных сырьевых потоков включает стадии пропускания газообразного сырьевого потока над одной стороной жидкой мембраны с облегченным переносом согласно изобретению и отбор олефинов с другой стороны мембраны. Жидкая мембрана с облегченным переносом для выделения олефинов из газообразного сырьевого потока включает элемент конструкции в виде полимерной микропористой подложки и жидкого барьера, который включает водный раствор, содержащий переносчик в виде соли металла, способный к координационному связыванию олефиновых газов и этилен- или пропиленкарбонат в количестве 1-75 мас. 5 з. п. ф-лы, 9 ил. 609 9370Сс ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК ВИ” 2 045 509” С1 С 07С 7/144, В 010 53/22/(В 01 О 53/22, 151:00, 185:10) 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 4895488/04, 24.05.1991 (30) Приоритет: 25.05.1990 Ц$ 528849 (46) Дата публикации: 10.10.1995 (56) Ссылки: Патент США М 3758605, кл. С 07С 11/02, 1973.Патент США М 3758603, кл. С 07С 11/02, 1973. (71) Заявитель: Дзе Стандарт Ойл Компани (1$) (72) Изобретатель: Дин Т.Тсоу[ЧЗ], Марк В.Блэчмен[Ц$] (73) Патентообладатель: Дзе Стандарт Ойл Компани (ЦЗ) (54) СПОСОБ ВЫДЕЛЕНИЯ ОЛЕФИНОВ ИЗ ГАЗООБРАЗНОГО СЫРЬЕВОГО ПОТОКА (57) Реферат: Сущность изобретения: способ выделения олефинов из газообразных сырьевых потоков включает стадии пропускания газообразного сырьевого потока над одной стороной жидкой мембраны с —облегченным — переносом согласно изобретению и отбор олефинов с другой стороны мембраны. Жидкая мембрана с облегченным переносом для выделения олефинов из газообразного сырьевого потока включает элемент конструкции в виде полимерной микропористой подложки и жидкого барьера, который включает водный раствор, содержащий переносчик в виде соли металла, способный к координационному связыванию олефиновых газов и этилен- или пропиленкарбонат в количестве 1-75 мас. 5 3. п. ф-лы, 9 ил. 2045509 С1 КО 609 9370Сс ...

用于加湿促进输送膜的方法

一种用于加湿促进输送膜的改进方法结合了将掺有液态水的非选择性水合流体递送到包括所述促进输送膜的压力容器的渗透侧。所述非选择性水合流体包括水，并且可以以液体或气体形式配置在所述促进输送膜的渗透侧界面上。一种用于利用所述加湿方法分离气态混合物中的组分的方法通过所述促进输送膜产生了更高的气体渗透。所述非选择性水合流体可以是静态的或流动的，并且相比于其他组分对于某些渗透气体组分的渗透率是非选择性的。

一种气体分离用取向ltl型分子筛膜的制备方法

一种气体分离用取向LTL型分子筛膜的制备方法，包括以下步骤：(1)由碱源、铝源、硅源和去离子水混合成凝胶，水热晶化制备晶种；(2)将步骤(1)制备的晶种采用酸处理以脱除晶粒表面铝，之后在仲丁醇中配置成悬浊液，搅拌改性；(3)将步骤(2)改性后得到的LTL型分子筛悬浊液滴加到LB液槽中成膜，然后将得到的薄膜转移到载体表面；(4)将碱源、铝源、硅源和去离子水混合，配成二次生长合成液；(5)将步骤(3)的产物与步骤(4)的二次生长合成液接触，水热晶化，在载体上获得取向LTL型分子筛膜。本发明采用简单可控、高效可重复的LB法制备得到取向的LTL型分子筛晶种层，经过二次生长制备得到高度c‑轴取向的LTL型分子筛膜。操作简单，取向度易于控制，可重复性高。

Gas dehydration method

用于加湿促进输送膜的方法

一种用于加湿促进输送膜的改进方法结合了将掺有液态水的非选择性水合流体递送到包括所述促进输送膜的压力容器的渗透侧。所述非选择性水合流体包括水，并且可以以液体或气体形式配置在所述促进输送膜的渗透侧界面上。一种用于利用所述加湿方法分离气态混合物中的组分的方法通过所述促进输送膜产生了更高的气体渗透。所述非选择性水合流体可以是静态的或流动的，并且相比于其他组分对于某些渗透气体组分的渗透率是非选择性的。

저농도 이산화탄소 가스 혼합물로부터 이산화탄소를 분리하기 위한 분리막 기반 공정

본 개시 내용에서는 천연가스 복합화력 발전소(NGCC)로부터 발생되는 배가스와 같이 저농도의 이산화탄소를 함유하는 가스 혼합물에 함유된 이산화탄소를 분리(또는 포집)함에 있어서, 가스 혼합물을 저온으로 냉각하는데 필요한 에너지로서 액화천연가스(LNG)의 재기화 과정에서 방출되는 냉각 에너지를 활용하고, 더 나아가 배가스의 일부를 재순환시키는 방식을 더 포함함으로써 분리막 공정의 효율성을 개선할 수 있는 분리막 기반의 공정이 기재된다.

Xylene separation processes using a membrane separator

A process and system for separating paraxylene from a mixture of paraxylene, metaxylene, orthoxylene, and ethylbenzene in a simulated moving bed apparatus using a membrane to separate non-aromatics from a desorbent stream. The lower nonaromatics content in the desorbent improves paraxylene product purity, increases paraxylene production at the same desorbent rate, reduces the desorbent rate, and/or reduces energy consumption in the product tower.