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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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27-10-2015 дата публикации

ФИЛЬТРУЮЩИЙ ПАТРОН

Номер: RU0000156036U1
Автор: Чечевичкин Алексей Викторович
Принадлежит: Чечевичкин Алексей Викторович

1. Фильтрующий патрон для очистки сточной воды, состоящий из непроницаемого для воды корпуса и проницаемых верхнего и нижнего днищ, снабжённый опорным фланцем и строповочными проушинами, содержащий ионообменную загрузку, отличающийся тем, что ионообменная загрузка является катионообменной и представляет собой частицы на основе нерастворимой матрицы с сульфо-группами. 2. Фильтрующий патрон по п. 1, отличающийся тем, что над и/или под катионообменной загрузкой находится слой волокнистого фильтрующего материала. 3. Фильтрующий патрон по п. 2, отличающийся тем, что волокнистый фильтрующий материал в нём химически модифицирован с обеспечением увеличения гидрофильности или гидрофобности поверхности этого материала. 4. Фильтрующий патрон по п. 2, отличающийся тем, что волокнистый фильтрующий материал в нём химически модифицирован с обеспечением наличия у фильтрующего материала катионообменных свойств или сам фильтрующий материал является катионообменным. И 1 156036 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ ВУ” 156 036” 44 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ ММ9К Досрочное прекращение действия патента из-за неуплаты в установленный срок пошлины за поддержание патента в силе Дата прекращения действия патента: 09.07.2020 Дата внесения записи в Государственный реестр: 11.05.2021 Дата публикации и номер бюллетеня: 11.05.2021 Бюл. №14 Стр.: 1 па 95 09< р ЕП

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Номер записи: 1
05-07-2017 дата публикации

НАНОСТРУКТУРНЫЙ КОМПОЗИТ ДЛЯ ГЛУБОКОГО УДАЛЕНИЯ КИСЛОРОДА ИЗ ВОДЫ

Номер: RU0000172363U1
Автор: Кравченко Тамара Александровна, Крысанов Вячеслав Александрович, Плотникова Наталья Викторовна
Принадлежит: федеральное государственное бюджетное образовательное учреждение высшего образования "Воронежский государственный университет" (ФГБОУ ВО "ВГУ")

Полезная модель относится к композитным материалам, а именно к нанокомпозитам на основе ионообменных матриц, и может быть использована для глубокого обескислороживания воды. Технический результат заключается в разработке нового композитного материала, обладающего высокой скоростью и степенью поглощения растворенного в воде кислорода, и достигается тем, что наноструктурный композит для глубокогоудаления кислорода из воды состоит из ионообменной матрицы Lewatit K 2620 или Lewatit SP-112H, обработанной раствором 6% сульфата меди, а затем 6% щелочным раствором дитионита натрия. Полученные материалы отличаются изопористой структурой и монодисперсным распределением частиц меди по размеру. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 172 363 U1 (51) МПК C02F 1/20 (2006.01) C01G 3/00 (2006.01) B01J 39/18 (2006.01) B82B 1/00 (2006.01) B82Y 30/00 (2011.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2016140241, 12.10.2016 (24) Дата начала отсчета срока действия патента: 12.10.2016 Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 12.10.2016 (45) Опубликовано: 05.07.2017 Бюл. № 19 2217382 C1, 27.11.2003. US 20120051999 A1, 01.03.2012. US 20110175039 A1, 21.07.2011. ХОРОЛЬСКАЯ С.В., Кооперативные взаимодействия наночастиц металла (Cu, Ag, Bi, Ni) в ионообменной матрице при восстановлении растворенного в воде кислорода, Диссертация на соискание ученой степени кандидата химических наук, Воронеж, (см. прод.) R U (54) НАНОСТРУКТУРНЫЙ КОМПОЗИТ ДЛЯ ГЛУБОКОГО УДАЛЕНИЯ КИСЛОРОДА ИЗ ВОДЫ (57) Реферат: Полезная модель относится к композитным для глубокогоудаления кислорода из воды материалам, а именно к нанокомпозитам на состоит из ионообменной матрицы Lewatit K 2620 основе ионообменных матриц, и может быть или Lewatit SP-112H, обработанной раствором использована для глубокого обескислороживания 6% сульфата меди, а затем 6% щелочным воды. Технический результат заключается в раствором дитионита натрия. Полученные ...

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Номер записи: 2
15-03-2012 дата публикации

Method of Recovering Potassium from Waste Waters for Use in Purification of Waste Water, including the Waste Water from which the potassium is Recycled, while retaining the Potassium in forms suitable for use as a Nutrient in Growing Microbes, Plants and Algae

Номер: US20120061315A1
Автор: Gerald J Grott
Принадлежит: Individual

A method for recovering and/or utilizing potassium from waste waters for a plurality of applications. As algae and plants are able to survive and flourish in environments with high salt concentrations, waste waters containing potassium can be applied as fertilizers to the growth of microbes, algae and plants. The microbes, plants, and algae are able to absorb the necessary nutrients, such as nitrogen and potassium, from the waste waters. After depletion of the potassium content from the waste water, that waste water can then be treated to separate other contaminants. In another aspect of the present invention, the potassium content may be first separated from the waste water to be applied for growth of microbes, plants, and algae and again used for regeneration of cation resins in specific potassium forms. The remaining contaminants that are separated through treatment of the waste water can be utilized for different productions.

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Номер записи: 3
12-04-2012 дата публикации

Method of separating microorganism using nonplanar solid substrate and device for separating microorganism using the same

Номер: US20120088286A1
Автор: Joon-Ho Kim, Kyu-Youn Hwang, Sung-Young Jeong
Принадлежит: SAMSUNG ELECTRONICS CO LTD

Provided is a method of separating microorganisms from a sample including contacting the sample containing microorganisms with an inorganic on exchange material such that the sample reacts with the inorganic on exchange material, and contacting the reacted sample with a means for capturing microorganisms.

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Номер записи: 4
19-04-2012 дата публикации

Process for producing middle distillates by hydroisomerization and hydrocracking of a heavy fraction derived from a fischer-tropsch effluent

Номер: US20120091034A1
Автор: Aurelie Dandeu, Vincent Coupard
Принадлежит: Eni Spa, IFP Energies Nouvelles IFPEN

The present invention describes a process for producing middle distillates from a C5+ liquid paraffinic fraction, termed a heavy fraction, with an initial boiling point in the range 15° C. to 40° C. produced by Fischer-Tropsch synthesis, comprising the following steps in succession: passing said C5+ liquid paraffinic fraction, termed a heavy fraction, over at least one ion exchange resin at a temperature in the range 80° C. to 150° C., at a total pressure in the range 0.7 to 2.5 MPa, at an hourly space velocity in the range 0.2 to 2.5 h −1 ; eliminating at least a portion of the water formed in step a); hydrogenating the unsaturated olefinic type compounds of at least a portion of the effluent derived from step b) in the presence of hydrogen and a hydrogenation catalyst; and hydroisomerization/hydrocracking of at least a portion of the hydrotreated effluent derived from step c) in the presence of hydrogen and a hydroisomerization/hydrocracking catalyst.

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Номер записи: 5
07-06-2012 дата публикации

Removal of light fluoroalkanes from hydrocarbon streams

Номер: US20120142792A1
Автор: Kenneth A. BOATENG, Marc-Andre Poirier
Принадлежит: ExxonMobil Research and Engineering Co

The removal of fluoroalkanes from fluoroalkane-containing hydrocarbon streams, preferably C 3 to C 5 hydrocarbon streams. The fluoroalkane-containing hydrocarbon stream is contacted with an adsorbent containing a strong acid function, preferably a silica gel or a strong cation ion-exchange resin having sulfonic acid functionality.

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Номер записи: 6
14-06-2012 дата публикации

Polymer composite for extracting cesium from nuclear waste and/or other inorganic wastes/solutions

Номер: US20120144957A1
Автор: Amar Kumar, Lalit Varshney
Принадлежит: India Atomic Energy Department of

A polymer composite with superior granulometric properties for the extraction of active and non-active cesimn from high level acidic radioactive nuclear waste and/or other inorganic wastes/solutions that is particularly useful to nuclear industry. The void volumes of the said polymer composite is varied to obtain the desired Cs ion exchange kinetics wherein the composite material is radiation resistant and stable in highly acidic and alkaline medium.

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Номер записи: 7
20-09-2012 дата публикации

Water Purification Cartridge Using Zirconium Ion-Exchange Sorbents

Номер: US20120234762A1
Автор: Raymond Wong
Принадлежит: Fresenius Medical Care Holdings Inc

A cartridge having at least one layer containing sodium zirconium phosphate and at least one layer containing a combination of acid zirconium phosphate and alkaline hydrous zirconium oxide is described. Methods of using the cartridge for water purification are also described.

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Номер записи: 8
04-10-2012 дата публикации

Curable Compositions And Membranes

Номер: US20120248029A1
Автор: Bastiaan Van Berchum, Harro Antheunis, Jacko Hessing
Принадлежит: FUJIFILM MANUFACTURING EUROPE BV

A curable composition comprising: (i) 2.5 to 50 wt % crosslinker comprising at least two acrylamide groups; (ii)12 to 65 wt % curable ionic compound comprising an ethylenically unsaturated group and a cationic group; (iii) 10 to 70 wt % solvent; (iv) 0 to 10 wt % of free radical initiator; and (v) lithium and/or calcium salt. The compositions are useful for preparing ion exchange membranes.

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Номер записи: 9
04-10-2012 дата публикации

Curable Compositions And Membranes

Номер: US20120248030A1
Автор: Bastiaan Van Berchum, Harro Antheunis, Jacko Hessing
Принадлежит: FUJIFILM MANUFACTURING EUROPE BV

A curable composition comprising: (i) 2.5 to 50 wt % crosslinker comprising at least two acrylamide groups; (ii) 12 to 65 wt % curable ionic compound comprising an ethylenically unsaturated group and a cationic group; (iii) 15 to 70 wt % solvent; and (iv) 0 to 10 wt % of free radical initiator; and (v) 2 to 50 wt % of non-curable salt; wherein the composition has a pH of 1 to 12. The compositions are useful for preparing ion exchange membranes.

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Номер записи: 10
11-10-2012 дата публикации

Curable Compositions And Membranes

Номер: US20120259027A1
Автор: Bastiaan Van Berchum, Harro Antheunis, Jacko Hessing
Принадлежит: FUJIFILM MANUFACTURING EUROPE BV

A curable composition comprising: (i) 2.5 to 50 wt % crosslinker comprising at least two acrylamide groups; (ii) 20 to 65 wt % curable ionic compound comprising an ethylenically unsaturated group and an anionic group; (iii) 15 to 45 wt % solvent; and (iv) 0 to 10 wt % of free radical initiator; wherein the molar ratio of (i):(ii) is 0.1 to 1.5. The compositions are useful for preparing ion exchange membranes.

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Номер записи: 11
03-01-2013 дата публикации

Biologically Efficacious Compositions, Articles of Manufacture and Processes for Producing and/or Using Same

Номер: US20130004586A1
Автор: David J. Vachon, Nathan Knapp
Принадлежит: Individual

Compositions, solid polymeric compositions, and/or articles of manufacture are provided that can include a polymer matrix having a plurality of ion-exchange particles distributed therein. Products by process are provided that can include prior to solidifying the polymeric precursors, blending the precursors with ion-exchange particles to form a mixture, and solidifying the mixture to form a solid polymeric composition product. Solid polymeric composition production methods are also provided that can include providing a plurality of ion-exchange particles, prior to solidifying the polymeric precursors, blending the precursors with the ion-exchange particles to form a mixture, and solidifying the mixture to form a solid polymeric composition. Article of manufacture production methods are provided that can include incorporating a solid polymeric composition into an article of manufacture, the solid polymeric composition including a polymer matrix and a plurality of ion-exchange particles distributed therein.

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Номер записи: 12
07-02-2013 дата публикации

Methods for Coupling of Molecules to Metal/Metal Oxide Surfaces

Номер: US20130034893A1
Автор: JUN Gao, Thomas Russell, Zhiyu Li
Принадлежит: Individual

Functionalized magnetic particles are emerging as a reliable and convenient technique in the purification of biomacromolecules (proteins and nucleic acids). We disclose a novel coupling procedure that can be used to create stable ferromagnetic nickel particles coated with Protein A for the affinity purification of antibody. The protein purification procedure is gentle, scalable, automatable, efficient and economical. By modifying the functional groups of amino acids in the protein coating, nickel particles can be used not only for affinity purification but for other sample preparation and chromatographic applications as well including nucleic acid isolations. The method can be easily modified for small and medium scale antibody purification in lab and pre-clinical research.

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Номер записи: 13
21-02-2013 дата публикации

Polymeric acid catalysts and uses thereof

Номер: US20130042859A1
Автор: Brian M. Baynes, John M. GEREMIA
Принадлежит: Midori Renewables Inc

Polymers useful as catalysts in non-enzymatic saccharification processes are provided. Provided are also methods for hydrolyzing cellulosic materials into monosaccharides and/or oligosaccharides using these polymeric acid catalysts.

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Номер записи: 14
04-04-2013 дата публикации

Composite Additive Materials

Номер: US20130081643A1
Автор: Branton Peter, Mola Michele
Принадлежит: BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED

The invention relates to composite materials comprising particles of at least two different additive materials and a polymer binding said additive particles together the composite material. The invention also relates to incorporating at least two different additive materials into a filter material, using the composite material. 1. An agglomerated composite material comprising particles of an ion exchange resin as a first additive material , particles of at least one second additive material and a polymer binding said first and at least one second additive particles together in the composite material.2. The material as claimed in claim 1 , wherein the first and second additive materials have at least one of different densities and different particle sizes.3. The material as claimed in claim 1 , wherein the at least one second additive material is selected from at least one of: porous carbonation materials; inorganic oxides; and aluminosilicates.4. The material as claimed in claim 1 , wherein the polymer is at least one of: cellulose or a derivative thereof; starch or a derivative thereof; an alginate or derivative thereof; polyethylene; agar; a gum; and a polyvinyl alcohol or derivative thereof.5. The material as claimed in wherein the polymer is cellulose acetate.6. The material as claimed in claim 1 , wherein the composite material has an average particle size of at least 250 μm.7. The method of preparing a composite material claim 1 , said composite material comprising particles of an ion exchange resin as a first additive material claim 1 , particles of at least one second additive material and a polymer binding said first and at least one second additive particles together in the composite material claim 1 , wherein particles of the additive materials are mixed with the binding polymer to form the composite material.89-. (canceled)10. A filter element for a smoking article claim 1 , comprising a composite material claim 1 , said composite material comprising ...

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Номер записи: 15
11-04-2013 дата публикации

SEMI-INTERPENETRATING POLYMER NETWORK

Номер: US20130090397A1
Автор: Ansera Taib K., Bothof Catherine A., Fitzsimons, Hembre James I., JR. Robert T., Lawson Del R., Rabins Andrew W., Rasmussen Jerald K., Seshadri Kannan
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

Semi-interpenetrating polymeric networks are described. More specifically, the semi-interpenetrating polymeric networks include at least two polymers that are closely associated. The first polymer is an ionic polymer that is not crosslinked. The second polymer is a cross-linked polymer that can be either another ionic polymer or a non-ionic polymer. Methods of making the semi-interpenetrating polymeric networks, articles containing the semi-interpenetrating polymeric networks, and methods of using the semi-interpenetrating polymeric networks are also described. The semi-interpenetrating polymeric networks can function as ion exchange resins. 1. A polymeric material comprising a semi-interpenetrating polymeric network comprising:an ionic first polymer having a first ionic group; anda crosslinked second polymer prepared by free radical polymerization of a second monomer composition in the presence of the ionic first polymer, the second monomer composition comprising at least 30 weight percent of a crosslinking monomer based on a total weight of monomer in the second monomer composition.2. The polymeric material of claim 1 , wherein the polymeric material comprises at least 10 weight percent of the ionic first polymer.3. The polymeric material of claim 1 , wherein the crosslinked second polymer has a second ionic group with a charge that is opposite that of the first ionic group.4. The polymeric material of claim 1 , wherein the crosslinked second polymer is non-ionic.5. The polymeric material of claim 1 , wherein the semi-interpenetrating polymeric network is in the form of a bead.6. The polymeric material of claim 1 , wherein the semi-interpenetrating polymeric network is macroporous.7. The polymeric material of claim 1 , wherein the ionic first polymer comprises poly(methacrylamidopropyltrimethylammonium chloride) claim 1 , poly(acrylamidopropyltrimethylammonium chloride) claim 1 , or poly(diallyldimethylammonium chloride).8. The polymeric material of claim 1 , ...

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Номер записи: 16
30-05-2013 дата публикации

Steam purification

Номер: US20130134099A1
Автор: Michael Schelhaas, Pierre Vanhoorne, Reinhold Klipper, Wolfgang Wambach, Wolfgang Zarges
Принадлежит: LANXESS DEUTSCHLAND GMBH

This invention relates to an improved process for producing weakly acidic cation exchange resins, in particular the purification of weakly acidic cation exchange resins derived from crosslinked poly(acrylonitrile) and also the use of steam for reducing the leaching of weakly acidic cation exchangers and finally a process for increasing the performance of water treatment systems, preferably of tap water treatment systems, using the weakly acidic cation exchangers produced according to the invention.

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Номер записи: 17
13-06-2013 дата публикации

COLUMN PACKING FOR LIQUID CHROMATOGRAPHY, SEPARATION COLUMN, AND LIQUID CHROMATOGRAPHY DEVICE

Номер: US20130145828A1
Автор: ITO Masahito, Kawarai Masako, Minamoto Norimasa
Принадлежит: HITACHI HIGH-TECHNOLOGIES CORPORATION

To provide a column packing, a separation column, an analysis device, and an analysis method to reduce the analysis time without deteriorating the separation of multi-component amino acids. Disclosed are a column packing comprising a core portion made of a styrene-di-vinylbenzene copolymer having a cross-linkage degree of 50% or more and a shell portion made of a styrene-di-vinylbenzene copolymer having a cross-linkage degree of 20% or less; a separation column using the column packing; and a high-speed liquid chromatography analysis device and a analysis method using the separation column. 1. A column packing for liquid chromatography comprising:a shell with certain permeability for a specific sample molecule; anda core with lower permeability than that of the shell for the specific sample molecule,wherein the core is covered with the shell of a polymer coating.2. The column packing according to claim 1 , wherein the core is made of a polymer.3. The column packing according to claim 1 , wherein both the shell and the core are styrene-di-vinylbenzene copolymers and have different cross-linkage degrees to provide the certain permeability and lower permeability claim 1 , respectively.4. The column packing according to claim 1 , wherein the core is a styrene-di-vinylbenzene copolymer core claim 1 , and the shell is a styrene-di-vinylbenzene copolymer shell incorporating a functional group.5. The column packing according to claim 1 , wherein the core is made of a styrene-di-vinylbenzene copolymer having a cross-linkage degree of 50% or more.6. The column packing according to claim 1 , wherein the shell is made of a styrene-di-vinylbenzene copolymer having a cross-linkage degree of 20% or less.7. The column packing according to claim 1 , wherein the shell is a styrene-di-vinylbenzene copolymer retaining a strongly acidic cation-exchange group claim 1 , and the core is a styrene-di-vinylbenzene copolymer not retaining said strongly acidic cation-exchange group.8. The ...

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Номер записи: 18
27-06-2013 дата публикации

ALKALINE-STABLE CHROMATOGRAPHIC RESINS

Номер: US20130165539A1
Автор: CARBONELL RUBEN G., MENEGATTI STEFANO, NAIK AMITH D.
Принадлежит: North Carolina State University

This invention is directed to the production of improved chromatographic resins and method of making and using such resins. 1. A method of preparing an alkaline-stable functionalized solid support which comprises:(a) contacting a solid support comprising hydroxyl groups and additional nucleophilic groups under suitable conditions with an alkaline-stable protected (i) biomonomer or (ii) biopolymer so as to form a coupled solid support;(b) reacting the coupled solid support under suitable conditions so as to cleave any alkaline-labile bonds formed between any hydroxyl groups and the alkaline-stable protected (i) biomonomer or (ii) biopolymer;(c) acylating the hydroxyl groups in the coupled solid support to form an acylated coupled solid support;(d) removing the alkaline-stable protecting group from the biomonomer or biopolymer to yield a deprotected biomonomer or biopolymer on the acylated coupled solid support;(e) contacting the acylated coupled solid support with suitable reagents so as to link at least one additional protected biomonomer or biopolymer to the deprotected biomonomer or biopolymer on the acylated coupled solid support; and(f) deacylating the acylated coupled solid support so as to form the alkaline-stable functionalized solid support.2. The method of claim 1 , wherein the alkaline-stable functionalized solid support is stable to alkaline conditions up to about 1.0 M NaOH.3. The method of claim 1 , wherein acylating is performed by an anhydride or an acyl halide.4. The method of claim 3 , wherein the anhydride or the acyl halide is acetic anhydride claim 3 , acetyl chloride claim 3 , benzoic anhydride claim 3 , or benzyl chloride.5. The method of claim 1 , wherein step (e) is repeated so as add a plurality of protected biomonomers to the acylated coupled solid support.6. The method of claim 5 , wherein the protected biomonomers are protected amino acids claim 5 , nucleic acids claim 5 , or saccharides.7. The method of claim 1 , wherein the additional ...

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Номер записи: 19
04-07-2013 дата публикации

Purification of Metals

Номер: US20130171046A1
Автор: Luis Antonio Miguel Marques Barbosa
Принадлежит: Mallinckrodt LLC

A solid composition comprises: MnO 2 ; and a compound represented by the general formula (I) wherein: R is a polymer; each Y is independently a hydrogen or a negative charge; Z is either hydrogen or is not present; each n is independently 1, 2, 3, 4, 5 or 6; wherein the MnO 2 is bound to the compound of formula (I) so as to coat the surface thereof. Such a composition may be used for the separation of polyvalent metal species, such as Mo, from one or more accompanying impurities.

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Номер записи: 20
15-08-2013 дата публикации

Dispersion Composition of Fluorine-Containing Ion Exchange Resin

Номер: US20130210943A1
Автор: KITA Kohei, MURAI Takahiko, SAKAMOTO Naoki
Принадлежит: ASAHI KASEI E-MATERIALS CORPORATION

The disclosure includes dispersion compositions of fluorine-containing ion exchange resin. 18-. (canceled)10. The method for producing the dispersion composition according to claim 9 , wherein the alcohol is one or more of alcohols selected from the group consisting of methanol claim 9 , ethanol claim 9 , 1- propanol claim 9 , and 2-propanol.11. The method for producing the dispersion composition according to claim 9 , wherein the aqueous composition is subjected to the dispersion treatment at 220° C. or less.12940. The method for producing the dispersion composition according to claim claim 9 , wherein the fluorine-containing ion exchange resin comprises a copolymer represented by the formula (2) wherein n=0 and m=2.13. The method for producing the dispersion composition according to claim 10 , wherein the aqueous composition is subjected to the dispersion treatment at 220° C. or less.14. The method for producing the dispersion composition according to claim 10 , wherein the fluorine-containing ion exchange resin comprises a copolymer represented by the formula (2) wherein n=0 and m=2. The present invention relates to a dispersion composition of fluorine-containing ion exchange resin, a method for producing the same, an electrolyte membrane for a polymer electrolyte fuel cell, and a gas diffusion electrode and a fuel cell for a polymer electrolyte fuel cell.In recent years, an electrolyte membrane and an electrode for a polymer electrolyte fuel cell have been highly demanded. A dispersion composition of fluorine-containing ion exchange resin having a sulfonic acid functional group (hereinafter simply referred to as a “fluorine-containing ion exchange resin” at times) has been used for the production or repairing of electrolyte membranes for polymer electrolyte fuel cells, the production of electrodes containing catalyst particles, and the like.A dispersion composition of ion exchange resin has been required to have low viscosity in a higher concentration, so that ...

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Номер записи: 21
29-08-2013 дата публикации

GRAFTING METHOD TO IMPROVE CHROMATOGRAPHY MEDIA PERFORMANCE

Номер: US20130225701A1
Автор: Soice Neil, Umana Joaquin, Zhang Yu
Принадлежит: EMD MILLIPORE CORPORATION

The invention relates to improved methods of grafting polymer extenders onto porous substrates having diffusive pores, such as those used in protein separations, without filing the diffusive pores of the substrate, and restricting diffusion there through. By changing the grafting conditions and/or monomer composition(s) the resulting porous substrates having polymer extenders grafted thereto have increased protein binding capacity and resin selectivity, thereby enhancing the protein separation effectiveness of the substrate. The grafted polymer extenders provide the substrate with significant binding capacity at higher conductivity. The invention also relates to kits, and methods of using and grafting polymer extenders on porous resin substrates having diffusive pores. 1. A method of modifying a porous substrate having diffusive pores and surface reactive unsaturated functionalities , said method comprising:a) providing a porous substrate having diffusive pores and surface reactive unsaturated functionalities attached to the surface of the substrate.b) providing a solution comprising a grafting monomer or a mixture of grafting monomers, and a soluble radical polymerization initiator;c) contacting the substrate with the solution; andd) initiating free radical polymerization between the surface reactive unsaturated functionalities on the surface of the substrate and the grafting monomors or mixture of grafting monomers by the introducing the free radical polymerization initiator in the solution to form polymeric chains coupled to the substrate.2. The method of claim 1 , wherein the substrate is selected from the group consisting of porous polymeric beads claim 1 , porous agarose beads and porous ceramic beads.3. The method of claim 1 , further comprising after step (d):e) washing the substrate to remove any excess unreacted grafting monomers, mixture of grafting monomers, or unattached polymer chains, resulting in a porous substrate having a protein binding capacity ...

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Номер записи: 22
12-09-2013 дата публикации

Methods and materials for removing metals in block copolymers

Номер: US20130233827A1
Автор: Hengpeng Wu, Jian Yin, Mark Neisser, Muthiah Thiyagarajan, Sungeun Hong, Yi Cao
Принадлежит: AZ Electronic Materials Luxembourg SARL

The present invention relates to a method for treating a block copolymer solution, wherein the method comprises: providing a solution comprising a block copolymer in a non aqueous solvent; and, treating the solution to remove metals using an ion exchange resin. The invention also relates to a method of forming patterns using the treated block copolymer.

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Номер записи: 23
28-11-2013 дата публикации

TEMPERATURE RESPONSIVE ADSORBENT HAVING A STRONG CATION EXCHANGE GROUP AND METHOD FOR PRODUCING THE SAME

Номер: US20130317129A1
Автор: Akiyama Yoshikatsu, Koguma Ichiro, Nagase Kenichi, OKANO Teruo, Okuyama Kazuo, Shigematsu Hiroki
Принадлежит: ASAHI KASEI MEDICAL CO., LTD.

Provided is a temperature responsive adsorbent prepared by immobilizing a copolymer containing at least N-isopropylacrylamide to a base material surface. The copolymer has at least a strong cation exchange group. In addition, the copolymer contains the strong cation exchange group in an amount of 0.01 to 5 mol % relative to N-isopropylacrylamide in terms of monomer. 1. A temperature responsive adsorbent in which a copolymer containing at least N-isopropylacrylamide is immobilized to a base material surface , wherein the copolymer has at least a strong cation exchange group , and contains the strong cation exchange group in an amount of 0.01 to 5 mol % relative to the N-isopropylacrylamide in terms of monomer.2. The temperature responsive adsorbent according to claim 1 , wherein at least a portion of monomer units of the copolymer having the strong cation exchange group is an acrylic acid derivative or a methacrylic acid derivative and has a group represented by the following chemical formula (1) or (2):{'br': None, 'sub': 2', '3, '—CH(—OH)—CH—SOH\u2003\u2003(1)'}{'br': None, 'sub': 3', '2, '—CH(—SOH)—CH—OH\u2003\u2003(2)'}3. The temperature responsive adsorbent according to claim 1 , wherein at least a portion of monomer units of the copolymer having the strong cation exchange group is derived from a vinyl monomer having a sulfonic acid group.4. The temperature responsive adsorbent according to claim 3 , wherein at least a portion of the monomer units of the copolymer having the strong cation exchange group is represented by the following chemical formula (3):{'br': None, 'sub': 1', '2', '3', '3, '—CRR—CR(—SOH)—\u2003\u2003(3)'}{'sub': 1', '2', '3, 'where R, R, Rare each independently H or Me.'}5. A temperature responsive adsorbent in which a copolymer containing at least N-isopropylacrylamide is immobilized to a base material surface claim 3 , wherein the copolymer has at least a strong cation exchange group claim 3 , and wherein the temperature responsive ...

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Номер записи: 24
02-01-2014 дата публикации

Expandable Functional TFE Copolymer Fine Powder, Expanded Products and Reacted Products Therefrom

Номер: US20140005286A1
Автор: Chen Xin Kang, Drumheller Paul D., Hegenbarth Jack J., Johnson William B., Liu Wen K., Radspinner Rachel, Xu Ping
Принадлежит: W.L. Gore & Associates, Inc.

A functional TFE copolymer fine powder is described, wherein the TFE copolymer is a polymer of TFE and at least one functional comonomer, and wherein the TFE copolymer has functional groups that are pendant to the polymer chain. The functional TFE copolymer fine powder resin is paste extrudable and expandable. Methods for making the functional TFE copolymer are also described. The expanded functional TFE copolymer material may be post-reacted after expansion. 154-. (canceled)55. A composite membrane comprising:a. An expanded polymeric material comprising a functional TFE copolymer material having a microstructure characterized by nodes interconnected by fibrils wherein the TFE copolymer comprises a polymer chain of TFE and at least one comonomer having a functional group that is pendant to the polymer chain; andb. a material at least partially imbibed into said expanded polymeric material.56. The composite membrane of wherein the imbibed material substantially occludes the pores of the expanded polymeric material.57. The composite membrane of wherein the imbibed material substantially occludes the pores of the expanded polymeric material and has a gurley value of greater than 10 claim 55 ,000 seconds.58. The composite membrane of wherein the imbibed material comprises a polymer.59. The composite membrane of wherein the imbibed material is covalently bonded to said at least one functional group that is pendant to the polymer chain.60. The composite membrane of wherein the imbibed material comprises an ion exchange material.61. The composite membrane of wherein the ion exchange material comprises a perfluorosulfonic acid.62. An expanded polymeric material comprising a functional TFE copolymer material having a microstructure characterized by nodes interconnected by fibrils wherein the TFE copolymer comprises:a) a polymer chain of TFE and at least one comonomer having a functional group that is pendant to the polymer chain; andb) a filler material.63. The composite ...

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Номер записи: 25
16-01-2014 дата публикации

Ion-exchange membrane

Номер: US20140014519A1
Автор: Kazunori Nishio, Kazuo Mizuguchi, Nobuhiko Ohmura, Toshio Aritomi
Принадлежит: Astom Corp

An ion-exchange membrane including a porous unstretched polyethylene sheet in which fine pores are piercing, the pores being filled with an ion-exchange resin. The ion-exchange membrane exhibits excellent concentration property.

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Номер записи: 26
16-01-2014 дата публикации

PROCESS FOR THE PREPARATION OF CROSS-LINKED FLUORINATED POLYMERS

Номер: US20140017599A1
Автор: Merlo Luca, Oldani Claudio
Принадлежит: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

A process for the preparation of cross-linked fluorinated polymers comprising sulfonic acid functional groups comprising the steps of: a) providing at least one fluorinated polymer (P) comprising at least one —SOM functional group and less than 2% of —SOF functional groups with respect to the total amount of —SO3M and —SOF functional groups, wherein each M is selected from H and alkaline metals; and b) reacting said fluorinated polymer with at least one cross-linking agent of formula R(X)n under conditions that promote the formation of covalent bonds between the at least one functional group —SOM of fluorinated polymer (P) and at least one functional group X of the cross-linking agent. 2. Process according to wherein the fluorinated polymer (P) contains less than 0.1% of —SOF functional groups with respect to the total number of —SOM and —SOF functional groups.3. Process according to further comprising the steps of: c) preparing a liquid composition comprising said fluorinated polymer (P) and said cross-linking agent (XL); d) applying the liquid composition prepared in step c) onto a substrate; said steps c) and d) being carried out before step b).4. Process according to wherein said liquid composition is applied onto an inert claim 3 , non porous claim 3 , support in a film-forming layer which claim 3 , after step b) claim 3 , is removed from the support providing an article consisting of the cross-linked fluorinated polymer (XLP).5. Process according to wherein said liquid composition is applied onto a porous support.6. Process according to wherein the formation of covalent bonds between at least one functional group X of the cross-linking agent (XL) and the at least one —SOM functional group in the fluorinated polymer (P) is promoted by heating.7. Process according to wherein said formation of covalent bonds is promoted by heating at a temperature of at least 150° C.8. Process according to wherein the amount of cross-linking agent (XL) is such that the total ...

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Номер записи: 27
20-02-2014 дата публикации

FILTRATION MEDIA

Номер: US20140048741A1
Автор: Gieger Robert, Prince Richard A., Pulek John L.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A filtration media is disclosed comprising functionalized particles distributed throughout a sintered porous matrix, the sintered porous matrix derived from a combination of components comprising first ultra-high molecular weight polyethylene initially comprising a plurality of non-porous particles having a first shape that is substantially spherical; second ultra-high molecular weight polyethylene initially comprising a plurality of non-spherical perforated particles having a second shape that is convoluted; and third ultra-high molecular weight polyethylene initially comprising a plurality of non-spherical perforated particles having a third shape that is convoluted, wherein the functionalized particles comprise a range from about 20% by weight to about 90% by weight of the sintered porous matrix. 1. Filtration media , comprising:functionalized particles distributed throughout a sintered porous matrix, the sintered porous matrix derived from a combination of components comprising:(i) first ultra-high molecular weight polyethylene, the first ultra-high molecular weight polyethylene initially comprising a plurality of non-porous particles having a first shape that is substantially spherical;(ii) second ultra-high molecular weight polyethylene, the second ultra-high molecular weight polyethylene initially comprising a plurality of non-spherical perforated particles having a second shape that is convoluted;(iii) third ultra-high molecular weight polyethylene, the third ultra-high molecular weight polyethylene initially comprising a plurality of non-spherical perforated particles having a third shape that is convoluted; andwherein the functionalized particles comprise a range from about 20% by weight to about 90% by weight of the sintered porous matrix.2. The filtration media of wherein the functionalized particles comprise about 50% by weight or more of the sintered porous material claim 1 , the functionalized particles having an average particle size claim 1 , when ...

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Номер записи: 28
27-02-2014 дата публикации

System and method for conditioning a liquid such as water

Номер: US20140054211A1
Автор: Berthold Conradt
Принадлежит: BRITA GMBH

A system for conditioning a liquid such as water, includes a first holder of a medium for treating liquid, the medium in the first holder including an ion exchange material loaded with at least a first counter ion species, and a second holder of a medium for treating liquid, the medium in the second holder including an ion exchange material loaded with at least a second counter ion species of the same polarity as the first. The media in the first and second holders are configured to exchange at least one of the first and second counter ion species for ions in the liquid to a different extent. The system is arranged to lead a first fraction of the liquid to be treated through only the first of the first and second holders and a second fraction of the liquid to be treated through at least the second of the first and second holders.

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Номер записи: 29
27-02-2014 дата публикации

LIQUID CATION EXCHANGER

Номер: US20140054224A1
Автор: Demicoli Daniel, Erhardt Frank, Haas Thomas, Häger Harald, Pfeffer Jan Christoph, Pfennig Andreas, Pötter Markus, Przybylski-Freund Marie-Dominique, Roos Martin, Schubert Anja, Tacke Thomas
Принадлежит: EVONIK DEGUSSA GmbH

The present application relates to a process for removing an organic compound having one or more positive charges from an aqueous solution, comprising the steps a) provision of the aqueous solution comprising the organic compound and of a hydrophobic organic solution which comprises a liquid cation exchanger, where the liquid cation exchanger is hydrophobic, and where the liquid cation exchanger has one or more negative charges and an overall negative charge, b) contacting the aqueous solution and the organic solution, and c) separating off the organic solution from the aqueous solution. 1. A process for removing an organic compound comprising one or more positive charges from an aqueous solution , the process comprising:providing the aqueous solution comprising the organic compound and a hydrophobic organic solution comprising a liquid cation exchanger,contacting the aqueous solution and the hydrophobic organic solution, andseparating off the hydrophobic organic solution from the aqueous solution, wherein the liquid cation exchanger is a hydrophobic fatty acid, and the organic compound comprises at least two amino groups and no negatively charged functional group.2. The process according to claim 1 ,wherein a temperature of the contacting is from 28 to 70° C.3. The process according to claim 1 ,wherein a pH of the contacting is from 6 to 8.4. The process according to claim 1 ,{'sub': 2', '2', 'x', '2, 'wherein the organic compound is a compound of Formula HN—(CH)—NH, wherein x is 1 to 20.'}5. The process according to claim 1 ,wherein the organic compound is a cyclic sugar comprising at least two amino groups.6. The process according to claim 1 ,wherein a quantitative ratio of the liquid cation exchanger to the organic compound is at least 1.7. The process according to claim 1 ,wherein a volume ratio of the hydrophobic organic solution to the aqueous solution is from 1:10 to 10:1.8. The process according to claim 1 ,wherein the liquid cation exchanger is a fatty ...

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Номер записи: 30
27-02-2014 дата публикации

METHODS FOR SULFATE REMOVAL IN LIQUID-PHASE CATALYTIC HYDROTHERMAL GASIFICATION OF BIOMASS

Номер: US20140054507A1
Автор: Elliott Douglas C., Oyler James R.
Принадлежит:

Processing of wet biomass feedstock by liquid-phase catalytic hydrothermal gasification must address catalyst fouling and poisoning. One solution can involve heating the wet biomass with a heating unit to a pre-treatment temperature sufficient for organic constituents in the feedstock to decompose, for precipitates of inorganic wastes to form, for preheating the wet feedstock in preparation for subsequent removal of soluble sulfate contaminants, or combinations thereof. Processing further includes reacting the soluble sulfate contaminants with cations present in the feedstock material to yield a sulfate-containing precipitate and separating the inorganic precipitates and/or the sulfate-containing precipitates out of the wet feedstock. Having removed much of the inorganic wastes and the sulfate contaminants that can cause poisoning and fouling, the wet biomass feedstock can be exposed to the heterogeneous catalyst for gasification. 1. A hydrothermal process for treating a wet biomass feedstock comprising biomass , inorganic contaminants , soluble sulfate contaminants , and sub-critical liquid water , the process operated at temperatures and pressures that maintain the wet biomass feedstock in liquid phase without forming a supercritical fluid and characterized by:heating under pressure the wet biomass feedstock to a pre-treatment temperature sufficient for organic constituents in the feedstock to decompose, for precipitates of inorganic wastes to form, and for preheating the wet feedstock in preparation for removal of the soluble sulfate contaminants;reacting the soluble sulfate contaminants with cations present in the feedstock to yield a sulfate-containing precipitate; andseparating the precipitates of inorganic wastes and the sulfate-containing precipitates out the wet biomass feedstock to yield a liquid of the wet biomass feedstock having a decreased sulfate content.2. The process of claim 1 , wherein the biomass comprises the cations.3. The process of claim 1 , ...

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Номер записи: 31
27-02-2014 дата публикации

Pharmaceutical compound which includes clinoptilolite

Номер: US20140056804A1
Автор: Kevin Gast
Принадлежит: Individual

This invention is for a compound for treating a human or animal body to relieve the symptoms of any one of chemical-, substance-, and medicine induced gastrointestinal tract irritation, the compound including clinoptilolite. The invention is also for a compound for treating a human or animal body to lower the incidences of gastic events in persons using non-steroidal, anti-inflammatory medications, the compound including clinoptilolite.

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Номер записи: 32
13-03-2014 дата публикации

Zirconium Phosphate Particles Having Improved Adsorption Capacity And Method Of Synthesizing The Same

Номер: US20140069858A1
Автор: Wong Raymond June-Hin
Принадлежит:

Zirconium phosphate particles are synthesized by providing a solution of zirconium oxychloride in an aqueous solvent, adding at least one low molecular weight, oxygen containing, monofunctional, organic additive to the solution, and combining this solution with heated phosphoric acid or a phosphoric acid salt to obtain zirconium phosphate particles by sol gel precipitation. 128-. (canceled)29. Zirconium phosphate (ZrP) particles having the following characteristics:an average particle size of about 45-90 microns,{'sup': '2', 'a BET surface area of at least 2 m/g ZrP, and'}{'sub': 4', '4, 'an ammonia capacity in dialysate of at least about 15 mg NH—N/g ZrP, at 20 mg/dL NH—N.'}30. The particles of having a BET surface area of at least 10 m/g ZrP.31. The particles of further having a pore volume of at least 0.0071 mL/g claim 29 , a monolayer volume of at least 0.5 mL/g (STP) claim 29 , and a 20-80 nm pore size content of at least 30%.32. A dialysis cartridge comprising a cartridge that contains the zirconium phosphate particles of .33. Zirconium phosphate (ZrP) particles having the following characteristics:a pore volume of at least 0.0071 mL/g,a monolayer volume of at least 0.5 mL/g (STP), anda 20-80 nm pore size content of at least 30%.34. A dialysis cartridge comprising a cartridge that contains the zirconium phosphate particles of . This application claims the benefit under 35 U.S.C. §119(e) of prior U.S. Provisional Patent Application No. 61/102,466, filed Oct. 3, 2008, which is incorporated in its entirety by reference herein.The present invention relates to zirconium phosphate particles, and to methods of making zirconium phosphate particles, such as by sol gel synthesis, that have improved porosity, BET surface area, and/or ammonium ion adsorption properties.Zirconium phosphate (ZrP) particles are used as ion exchange materials and are particularly useful as a sorbent material for regenerative dialysis. Zirconium phosphate (ZrP) particles can be synthesized by ...

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Номер записи: 33
27-03-2014 дата публикации

HYDROLYTICALLY STABLE ION-EXCHANGE STATIONARY PHASES AND USES THEREOF

Номер: US20140083946A1
Автор: ANDREI BORDUNOV
Принадлежит: AGILENT TECHNOLOGIES, INC.

The invention provides novel ion-exchange media and related methods for their preparation and use. Ion-exchange stationary phases according to the invention are suitable for chromatographic separation of a variety of biomolecules. Distinguishing characteristics of ion-exchange media according to this invention includes, for example, their ability to separate variants of monoclonal antibodies via cation-exchange liquid chromatography using porous substrates with particle sizes <5 μm. The ion-exchange stationary media include a hydrolytically stable layer, which inhibits surface degradation of the particles in 100% aqueous media. Another unique feature is low molecular weight building blocks used to functionalize the particles with ion-exchange groups. 2. The ion-exchange medium of claim 1 , wherein the particulate substrate is porous.3. The ion-exchange medium of claim 1 , wherein the particulate substrate comprises a non-porous core and a porous shell.4. The ion-exchange medium of claim 1 , wherein the particulate substrate is non-porous.5. The ion-exchange medium of claim 2 , wherein the particulate substrate has an average pore size of about 60 Å to about 2 claim 2 ,000 Å.9. The ion-exchange medium of claim 1 , wherein the ion-exchange layer of one or more ion-exchange organic compounds covalently bond to the hydrolytically stable monolayer comprises one or more cation-exchange organic compounds covalently bond to the hydrolytically stable monolayer.10. The ion-exchange medium of claim 1 , wherein the ion-exchange layer of one or more ion-exchange organic compounds covalently bond to the hydrolytically stable monolayer comprises one or more anion-exchange organic compounds covalently bond to the hydrolytically stable monolayer.12. The method of claim 11 , wherein the particulate substrate is porous claim 11 , comprises a non-porous core and a porous shell claim 11 , or is non-porous.13. The method of claim 11 , wherein the biological analyte is selected from ...

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Номер записи: 34
27-03-2014 дата публикации

ION-EXCHANGE MANGANESE OXIDE LITHIUM ADSORBENT USING POROUS STRUCTURE AND METHOD FOR PREPARING THE SAME

Номер: US20140087071A1
Автор: CHUNG Kang-Sup, HONG Hye-Jin, Kim ByounGyu, Park In-Su, Ryu Jung-Ho, Ryu Tae-Gong
Принадлежит: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES

The present invention relates to an ion-exchange manganese oxide lithium adsorbent using a porous structure and a method for preparing the same. The lithium adsorbent according to the present invention is highly dispersed on the surface of the porous structure, and thus it has excellent adsorption performance and physical stability and is easy to handle. Moreover, through the porous structure, the contact between a lithium-containing solution and the adsorbent is facilitated to maximize the adsorption capacity, thus making it possible to highly efficiently recover lithium ions from a solution containing a small amount of lithium ions. 1. A method for preparing a manganese oxide lithium adsorbent using a porous structure , the method comprising the steps of:(a) preparing a lithium-manganese mixed solution;(b) impregnating a porous glass structure with a pore size of 1 to 500 μm in the lithium-manganese mixed solution prepared in step (a) and drying the resulting porous glass structure;(c) preparing a lithium-manganese oxide by subjecting the porous glass structure dried in step (b) to a sintering process; and(d) preparing a manganese oxide lithium adsorbent by adding the prepared lithium-manganese oxide to an acid solution and reacting the mixture.2. The method of claim 1 , wherein in step (a) claim 1 , the mixed solution is prepared by mixing lithium acetate dihydrate (LiCHCOO·2HO) and manganese acetate tetrahydrate (Mn(CHCOO)·4HO).3. The method of claim 1 , wherein in step (b) claim 1 , the drying is performed at 40 to 100° C. for 2 to 10 hours.4. The method of claim 1 , wherein in step (c) claim 1 , the sintering process is performed at 300 to 900° C. for 0.1 to 50 hours.5. The method of claim 1 , wherein in step (d) claim 1 , the reaction is performed in a 0.01 to 5 M acid solution for 5 to 170 hours.6. The method of claim 1 , wherein in step (d) claim 1 , the acid solution comprises at least one selected from the group consisting of a hydrochloric acid solution ...

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Номер записи: 35
27-03-2014 дата публикации

Expanded ionomers and their uses

Номер: US20140088208A1
Автор: Alastair M. Hodges, Garry Chambers
Принадлежит: EXONOMER PTY LTD

Disclosed herein are expanded ionomer materials including a plurality of voids. Also disclosed are methods of making and using the expanded ionomer materials.

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Номер записи: 36
10-04-2014 дата публикации

Porous materials for solid phase extraction and chromatography and processes for preparation and use thereof

Номер: US20140096596A1
Автор: Darryl W. Brousmiche, Kevin D. Wyndham
Принадлежит: Waters Technologies Corp

The invention provides novel porous materials that are useful in chromatographic processes, e.g., solid phase extraction, and that provide a number of advantages. Such advantages include superior wetting characteristics, selective capture of analytes of interest, and non-retention of interfering analytes. The invention advantageously provides novel porous materials having a large percentage of larger pores (i.e. wide pores). The invention advantageously provides novel porous materials that overcome the problems of SPE of biological samples.

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Номер записи: 37
10-04-2014 дата публикации

SYNTHESIS OF LAYERED METAL SULFIDE ION-EXCHANGERS

Номер: US20140097141A1
Автор: FARD Zohreh Hassanzadeh, Kanatzidis Mercouri G.
Принадлежит:

Methods for the synthesis of compounds of the formula AMSnS, where x has a value in the range from 0.5 to 1; A is Li, Na, K, or Rb; and M is Mg, Mn, Zn, or Fe, are provided. Also provided are methods of remediating fluid samples using the compounds. 1. A method for the synthesis of a compound of the formula AMSnS , where x has a value in the range from 0.5 to 1; A is Li , Na , Rb , or Cs; and M is Mg , Ca , Mn , Zn , or Fe , wherein the method is a solid state method comprising heating a reaction mixture of ACO , M , S and Sn to a temperature and for a time sufficient to produce the compound of the formula AMSnS , via a solid state reaction.2. The method of claim 1 , wherein the reaction mixture consists of ACO claim 1 , M claim 1 , S and Sn.3. The method of claim 1 , wherein heating the reaction mixture comprises heating the mixture to a temperature of no greater than about 1000° C. for a time of no greater than about 15 hours and further wherein the method provides a yield of the compound having the formula AMSnSof at least about 50% claim 1 , based on total mass.4. The method of claim 1 , further comprising ball milling the reaction mixture prior to heating.5. The method of claim 1 , wherein A is K and M is Mg.6. A method for the synthesis of a compound of the formula AMSnS claim 1 , where x has a value in the range from 0.5 to 1; A is Li claim 1 , Na claim 1 , Rb claim 1 , or Cs; and M is Mg claim 1 , Ca claim 1 , Mn claim 1 , Zn claim 1 , or Fe claim 1 , wherein the method is a hydrothermal method comprising heating a reaction mixture of ACO claim 1 , M claim 1 , S claim 1 , Sn and water to a temperature and for a time sufficient to produce the compound of the formula AMSnS claim 1 , via a hydrothermal reaction claim 1 , and further wherein heating the reaction mixture comprises heating the mixture to a temperature of no greater than about 250° C. for a time of no greater than about 10 hours and further wherein the method provides a yield of the compound having ...

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Номер записи: 38
06-01-2022 дата публикации

CROSSLINKED CATION EXCHANGE POLYMERS, COMPOSITIONS AND USE IN TREATING HYPERKALEMIA

Номер: US20220000906A1
Автор: Albrecht Detlef, Burdick Michael, Chang Han-Ting, Charmot Dominique, Chidambaram Ramakrishnan, Connor Eric, Halfon Sherin, Huang I-Zu, Liu Mingjun, Mansky Paul, Mills Jonathan, Strüver Werner
Принадлежит:

The present invention is directed to crosslinked cation exchange polymers comprising a fluoro group and an acid group, pharmaceutical compositions of these polymers, compositions of a linear polyol and a salt of such polymer. Crosslinked cation exchange polymers having beneficial physical properties, including combinations of particle size, particle shape, particle size distribution, viscosity, yield stress, compressibility, surface morphology, and/or swelling ratio are also described. These polymers and compositions are useful to bind potassium in the gastrointestinal tract. 1193-. (canceled)196. The pharmaceutical composition of claim 194 , wherein the cation of the crosslinked cation exchange polymer comprises calcium claim 194 , sodium claim 194 , or a combination thereof.197. The pharmaceutical composition of claim 194 , wherein the cation of the crosslinked cation exchange polymer comprises calcium.198. The pharmaceutical composition of claim 197 , wherein m is in the range of from about 87 to about 94 mol % and the ratio of n:p is from about 0.2:1 to about 7:1.199. The pharmaceutical composition of claim 197 , wherein m is in the range of from about 85 to 93 mol % claim 197 , n is in the range of from about 1 to about 10 mol % claim 197 , and p is in the range of from about 1 to about 10 mol %.200. The pharmaceutical composition of claim 194 , wherein the linear sugar alcohol is selected from the group consisting of arabitol claim 194 , erythritol claim 194 , glycerol claim 194 , maltitol claim 194 , mannitol claim 194 , ribitol claim 194 , sorbitol claim 194 , xylitol claim 194 , threitol claim 194 , galactitol claim 194 , isomalt claim 194 , iditol claim 194 , lactitol and combinations thereof.201. The pharmaceutical composition of claim 200 , wherein the linear sugar alcohol is selected from the group consisting of arabitol claim 200 , erythritol claim 200 , glycerol claim 200 , maltitol claim 200 , mannitol claim 200 , ribitol claim 200 , sorbitol claim ...

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Номер записи: 39
07-01-2016 дата публикации

MICROPOROUS ZIRCONIUM SILICATE FOR THE TREATMENT OF HYPERKALEMIA

Номер: US20160000825A1
Автор: GUILLEM Alvaro F., KEYSER Donald Jeffrey
Принадлежит:

The present invention relates to novel microporous zirconium silicate compositions that are formulated to remove toxins, e.g. potassium ions, from the gastrointestinal tract at an elevated rate without causing undesirable side effects. The preferred formulations are designed avoid increase in pH of urine in patients and/or avoid potential entry of particles into the bloodstream of the patient. Also disclosed is a method for preparing high purity crystals of UZSi-9 exhibiting an enhanced level of potassium exchange capacity. These compositions are particularly useful in the therapeutic treatment of hyperkalemia. 146-. (canceled)47. A method of treating hyperkalemia comprising administering to a patient in need thereof a zirconium silicate composition having a median particle size of greater than 3 microns that is essentially free of particles having a diameter below 1 micron.48. The method of claim 47 , wherein less than 7% of the particles in the composition have a diameter less than 3 microns.49. The method of claim 47 , wherein less than 3% of the particles in the composition have a diameter less than 3 microns.50. The method of claim 47 , wherein less than 1.4% of the particles in the composition have a diameter less than 2 microns.51. The method of claim 47 , wherein the zirconium silicate exhibits a sodium content below 12% by weight.52. The method of claim 47 , wherein the zirconium silicate exhibits a sodium content below 9% by weight.53. The method of claim 47 , wherein the zirconium silicate is a particle represented by formula (I):{'br': None, 'sub': p', 'x', '1-x', 'n', 'y', 'm, 'AMZrSiGeO\u2003\u2003(I)'}whereA is a potassium ion, sodium ion, rubidium ion, cesium ion, calcium ion, magnesium ion, hydronium ion or mixtures thereof,M is at least one framework metal, wherein the framework metal is hafnium (4+), tin (4+), niobium (5+), titanium (4+), cerium (4+), germanium (4+), praseodymium (4+), terbium (4+) or mixtures thereof,“p” has a value from about 1 ...

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Номер записи: 40
06-01-2022 дата публикации

Block polymer composite membranes

Номер: US20220002497A1
Автор: Bryan W. Boudouris, Matthew J. WEBBER, William A. Phillip, Yizhou Zhang
Принадлежит: PURDUE RESEARCH FOUNDATION, University of Notre Dame

A highly permeable sorbent platform based on polysulfone and polystyrene-b-poly(acrylic acid) composite membranes. The membranes possess a fully interconnected network of poly(acrylic acid)-lined pores, which enables the surface chemistry to be tailored through sequential attachment of polyethyleneimine moieties and metal-binding terpyridine ligands. The polyethyleneimine moieties increase the saturation capacity, while the addition of terpyridine enables high-affinity binding to a diversity of transition metal ions. This membrane platform removes such metal contaminants from solution. The metal capture performance of the functionalized membranes persists even in high concentrations of competitive ions. Also, fluorescence quenching of the terpyridine moiety upon metal ion complexation offers an in-situ probe to monitor the extent of sorbent saturation. The permeability, capacity, and affinity of these membranes, with high-density display of a metal-binding ligand, offer a chemically tailored platform to address the challenges that arise in ensuring clean water.

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Номер записи: 41
06-01-2022 дата публикации

METHOD AND DEVICE OF REMOVING AND RECYCLING METALS FROM MIXING ACID SOLUTION

Номер: US20220002891A1
Автор: CHIANG YUNG-CHENG, Li Yu-Hsuan, Lin Kuo-Ching, SHIU Shr-Han, TEY WEI-RONG
Принадлежит:

A method and device of removing and recycling metals from a mixing acid solution, includes adsorbing a mixing acid solution with a pH value of −1 to 4 and a cobalt ion concentration of 100 to 1,000 mg/L by at least two cation resins in series setting to the cobalt ion concentration in the mixing acid solution is less than 10 mg/L, and then adjusting the pH value of the mixing acid solution after adsorption to meet a discharge standard, wherein the particle size of the at least two cation resins in series setting is 150˜1,200 μm. After the cation resins are saturated by adsorption, regenerating the cation resins by sulfuric acid to form a cobalt sulfate solution, and then electrolytically treating the cobalt sulfate solution to obtain electrolytic cobalt and sulfuric acid electrolyte. The operation process is simple without complicated equipment, and it can effectively recycle metals from mixing acid solutions. The cationic resin and sulfuric acid solution can also be reused, so the method of the present invention has environmental and economic benefits. 1. A method of removing and recycling metals from a mixing acid solution , comprises:adsorbing the mixing acid solution with a pH value of −1 to 4 and a cobalt ion concentration of 100 to 1,000 mg/L by at least two cation resins in series setting to the cobalt ion concentration in the mixing acid solution is less than 10 mg/L; andgenerating the at least two cation resins in series setting with 5-20% sulfuric acid to form a sulfuric acid regeneration solution with a cobalt ion concentration of 200-1,000 mg/L after the at least two cation resins in series setting are saturated.2. The method according to claim 1 , further comprising a step of adjusting the pH value of the mixing acid solution after adsorption treatment to 6-9.3. The method according to claim 1 , wherein the mixing acid solution with the pH value of −1 to 2 and the cobalt ion concentration of 400 to 1 claim 1 ,000 mg/L.4. The method according to claim 1 ...

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Номер записи: 42
03-01-2019 дата публикации

ISOTOPE PURIFICATION METHOD

Номер: US20190001005A1
Автор: FRENVIK Janne Olsen, RYAN Olav B.
Принадлежит:

The invention provides a method for the purification of 227 Th from a mixture comprising 227 Th and 223 Ra, said method comprising: i) preparing a first solution comprising a mixture of 227 Th and 223 Ra ions dissolved in a first aqueous buffer; ii) loading said first solution onto a separation material such as a strong cation exchange resin; iii) eluting 227 Th from the separation material, whereby to generate a second solution comprising 227 Th; iv) Optionally rinsing said separation material using a first aqueous washing medium; The invention additionally provides a method for forming a radio pharmaceutical comprising complexing the purified 227 Th, the pharmaceutical product and its use in treatment of disease such as cancer and a kit for generation of such a product. 1) A method for the purification of Th from a mixture comprising Th and Ra , said method comprising:{'sup': 227', '223, 'i) preparing a first solution comprising a mixture of Th and Ra ions dissolved in a first aqueous buffer;'}ii) loading said first solution onto a separation material;{'sup': 227', '227, 'iii) eluting Th from said separation material whereby to generate a second solution comprising Th;'}iv) Optionally rinsing said separation material using a first aqueous washing medium;2) The method of further comprising at least one of the following optional steps:{'sup': '227', 'v) assaying for the Th content of said second solution;'}vi) evaporating the liquid from said second solution;{'sup': '227', 'vii) forming at least one radiopharmaceutical from at least a portion of the Th contained in said second solution;'}viii) sterile filtering said radiopharmaceutical.3) The method of wherein the first aqueous buffer solution is at a pH of between 3 and 6.5.4) The method of wherein the first aqueous buffer solution comprises at least one organic acid buffer selected from citrate buffer claim 1 , acetate buffer and mixtures thereof.5) The method of wherein the first aqueous buffer solution further ...

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Номер записи: 43
04-01-2018 дата публикации

CHROMATOGRAPHIC SEPARATION OF SACCHARIDES USING WHOLE CRACKED BEADS OF GEL-TYPE STRONG ACID EXCHANGE RESIN

Номер: US20180001228A1
Автор: EICHER Christopher R., GISCH Daryl J., MARTIN Collin H.
Принадлежит:

A method for chromatographically separating a first saccharide from a liquid eluent comprising the first saccharide and a second saccharide by passing the liquid eluent through a bed comprising a gel-type strong acid cation exchange resin in calcium form, wherein the resin is provided in bead form and is characterized by comprising at least 20% whole cracked beads. 1. A method for chromatographically separating a first saccharide from a liquid eluent comprising the first saccharide and a second saccharide by passing the liquid eluent through a bed comprising a gel-type strong acid cation exchange resin in calcium form , wherein the resin is provided in bead form and is characterized by comprising at least 20% whole cracked beads.2. The method of wherein the resin comprises at least 40% whole cracked beads.3. The method of wherein the resin comprises at least 20% whole un-cracked beads.4. The method of wherein the resin comprises at least 40% whole un-cracked beads.5. The method of wherein the first and second saccharide comprises glucose and fructose claim 1 , respectively. The invention relates the use of gel-type strong acid cation exchange resins to chromatographically separate sugars including monosaccharides such as fructose and glucose.The current state of the art for chromatographic separation of sugars (e.g. fructose and glucose) utilizes strong acid gel-type ion exchange resins in calcium form (Ca+). A representative resin is DOWEX™ MONOSPHERE™ 99Ca/320 available from The Dow Chemical Company. See also U.S. Pat. No. 5,176,832. These types of chromatographic resins do not “exchange” ions in the traditional sense. Rather the bound Ca+ions form ligand interactions with the hydroxyl (—OH) and carbonyl (C═O) groups of sugar molecules. Fructose has more “absorbing” interactions with the Ca+ions and thus is more strongly retained by the resin as compared with glucose. Fructose with three —OH groups and two C═O groups is classified as a ketone while glucose with ...

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Номер записи: 44
05-01-2017 дата публикации

ELECTRODE COMPOSITION FOR CAPACITIVE DEIONIZATION DEVICE, AND ELECTRODE FOR CAPACITIVE DEIONIZATION DEVICE CONTAINING THE SAME

Номер: US20170001188A1
Автор: Choi Yeong Suk, LIM Ju Wan
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Provided are a binder composition for an electrode for a capacitive deionization device including a first polymer including a first structural unit including a zwitterionic functional group and a second structural unit including a cross-linkable functional group, a cross-linking agent, and ionic functional group, an electrode for a capacitive deionization device including the composition, a capacitive deionization device including the electrode, and a method of removing ions from a fluid using the device. 3. The electrode binder composition for a capacitive deionization device of claim 1 , wherein A of Chemical Formula 1 is a hydroxy group claim 1 , a carboxyl group claim 1 , a sulfonic acid group claim 1 , a phosphonic acid group claim 1 , an acrylate group claim 1 , a methacrylate group claim 1 , or a halogenated salt.4. The electrode binder composition for a capacitive deionization device of claim 1 , wherein Rto Rof Chemical Formula 1 are all hydrogen claim 1 , Lis a C1 to C10 alkylene group claim 1 , and A is a sulfonic acid group.5. The electrode binder composition for a capacitive deionization device of claim 1 , wherein Rof Chemical Formula 2 is methyl claim 1 , Rand Rare hydrogen claim 1 , Lis a C1 to C10 alkylene group claim 1 , and Ris a hydroxy group.6. The electrode binder composition for a capacitive deionization device of claim 2 , wherein Rof Chemical Formula 3 is hydrogen or methyl claim 2 , Rand Rare hydrogen claim 2 , Lis a single bond or —(C═O)O— claim 2 , and Ris a methyl claim 2 , phenyl claim 2 , or cyano group.8. The electrode binder composition for a capacitive deionization device of claim 1 , further comprising:at least one second hydrophilic polymer selected from polystyrene, polyacrylic acid-co-maleic acid, polyvinyl alcohol, carboxylmethyl cellulose, hydroxypropyl cellulose, polyvinylchloride, carboxylated polyvinylchloride, polyvinylfluoride, polyvinyl amine, chitosan, polyamide, polyurethane, polyacrylamide, polyacrylamide-co-acrylic ...

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Номер записи: 45
04-01-2018 дата публикации

CHROMATOGRAPHIC SEPARATION OF SACCHARIDES USING STRONG ACID EXCHANGE RESIN INCORPORATING PRECIPITATED BARIUM SULFATE

Номер: US20180001313A1
Автор: EICHER Christopher R., GISCH Daryl J.
Принадлежит:

A method for chromatographically separating a first saccharide from a liquid eluent comprising the first saccharide and a second saccharide by passing the liquid eluent through a bed comprising a gel-type strong acid cation exchange resin in calcium form, wherein precipitated barium sulfate is incorporated within the resin. 1. A method for chromatographically separating a first saccharide from a liquid eluent comprising the first saccharide and a second saccharide by passing the liquid eluent through a bed comprising a strong acid cation exchange resin in calcium form , wherein precipitated barium sulfate is incorporated within the resin.2. The method of wherein the cation exchange resin is a gel-type resin.3. The method of wherein the cation exchange resin is in bead form having a median diameter from 150 to 500 microns.4. The method of wherein the cation exchange resin has a total wet volume capacity of from 0.5 to 1.5 meg/ml.5. The method of wherein the first and second saccharide comprises glucose and fructose claim 1 , respectively. The invention relates the use of strong acid cation exchange resins to chromatographically separate sugars including monosaccharides such as fructose and glucose.The current state of the art for chromatographic separation of sugars (e.g. fructose and glucose) utilizes strong acid gel-type ion exchange resins in calcium form (Ca+). A representative resin is DOWEX™ MONOSPHERE™ 99Ca/320 available from The Dow Chemical Company. See for example U.S. Pat. No. 5,176,832.Strong acid ion exchange resins in alternative ionic forms have also been described in the literature (e.g. barium, lead, silver and strontium). See for example U.S. Pat. No. 3,044,905. Concerns regarding residual leakage of such metals have limited their use in food and beverage related applications.These types of chromatographic resins do not “exchange” ions in the traditional sense. Rather the bound Ca+ions form ligand interactions with the hydroxyl (—OH) and carbonyl (C ...

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Номер записи: 46
03-01-2019 дата публикации

Grafted Islands-In-The-Sea Nonwoven For High Capacity Ion Exchange Bioseparation

Номер: US20190001281A1
Автор: CARBONELL RUBEN G., Heller Michael Leonard, Pourdeyhimi Behnam
Принадлежит:

The invention provides polymer-grafted and functionalized nonwoven membranes adapted for use in bioseparation processes, the membranes including a nonwoven web of polyester fibers having an average fiber diameter of less than about 1.5 microns, each of the plurality of polyester fibers having grafted thereon a plurality of polymer segments constructed of a methacrylate polymer, each polymer segment carrying a functional group adapted for binding to a target molecule. The invention also provides a method of bioseparation comprising passing a solution comprising the target molecule, such as a protein, through the nonwoven membrane of the invention such that at least a portion of the target molecule in the solution binds to the nonwoven membrane. A method for preparing a polymer-grafted and functionalized nonwoven membrane adapted for use in bioseparation processes is also provided. 1. A polymer-grafted and functionalized nonwoven membrane adapted for use in bioseparation processes , comprising a nonwoven web comprising a plurality of polyester fibers having an average fiber diameter of less than about 1.5 microns , each of the plurality of polyester fibers having grafted thereon a plurality of polymer segments constructed of a methacrylate polymer , each polymer segment carrying a functional group adapted for binding to a target molecule.2. The nonwoven membrane of claim 1 , wherein the methacrylate polymer is constructed from one or more monomers selected from the group consisting of glycidyl methacrylate claim 1 , methacrylic acid claim 1 , 2-(diethylamino)ethyl methacrylate claim 1 , [2-(methacryloyloxy)ethyl]trimethyl-ammonium chloride claim 1 , 2-hydroxyethyl methacrylate claim 1 , 2-acrylamido-2-methylpropane sulfonic acid claim 1 , 2-(dimethylamino)ethyl methacrylate claim 1 , butyl methacrylate claim 1 , 3-chloro-2-hydroxypropyl methacrylate claim 1 , 2-ethylhexyl methacrylate claim 1 , and combinations thereof.3. The nonwoven membrane of claim 1 , wherein the ...

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Номер записи: 47
03-01-2019 дата публикации

ZIRCONIUM PHOSPHATE RECHARGING METHOD AND APPARATUS

Номер: US20190001303A1
Автор: Gerber Martin T., Hobot Christopher M., Pudil Bryant J.
Принадлежит:

Methods and related apparatuses for sorbent recharging are provided. The methods and related apparatuses for recharging can recharge a specific rechargeable layer or module of a sorbent material such as zirconium phosphate in a sorbent cartridge. The methods and apparatuses include a fluid source containing at least one recharging fluid, wherein the fluid source is fluidly connectable to at least one rechargeable sorbent module for use in sorbent dialysis in a fluid flow path. The methods and apparatuses include passing a single solution through the zirconium phosphate for ion exchanges, resulting in zirconium phosphate to maintain a substantially consistent pH in a dialysate used during dialysis. 136-. (canceled)37. A solution for recharging zirconium phosphate , comprising a combination of at least one sodium salt and at least one acid , the solution having a predetermined pH value that results in a substantially consistent pH in a dialysate passing through the zirconium phosphate after the solution is used for recharging zirconium phosphate.38. The solution of claim 37 , wherein the solution is selected from the group consisting of sodium acetate/acetic acid solution claim 37 , glycolic/glycolate solution claim 37 , citric/citrate solution claim 37 , propionate/propionic solution claim 37 , phosphate-monobasic solution claim 37 , or any combination thereof.39. The solution of claim 37 , wherein the solution consists essentially of sodium chloride claim 37 , sodium acetate and acetic acid.40. The solution of claim 39 , wherein concentrations of the sodium chloride claim 39 , the sodium acetate claim 39 , and the acetic acid are about 3.60M claim 39 , 0.40M claim 39 , and 0.40M claim 39 , respectively claim 39 , or about 3.88M claim 39 , 0.12M claim 39 , and 0.40M claim 39 , respectively. The present application is a Divisional of U.S. patent application Ser. No. 14/722,119 filed May 26, 2015, which is a continuation-in-part (CIP) application of U.S. patent ...

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Номер записи: 48
04-01-2018 дата публикации

PROCESS AND DEVICE FOR ENRICHING WATER WITH MAGNESIUM IONS

Номер: US20180002197A9
Автор: Bissen Monique, Johann Jürgen
Принадлежит: BWT Aktiengesellschaft

The invention relates to a process and a device for enriching water, in particular drinking water, with magnesium ions. In order to enable enrichment of water with magnesium ions in exchange for calcium ions and/or heavy metal ions during treatment of water, and in particular of drinking water, it is proposed according to the invention to pass the water through an ion exchanger which contains a weakly acidic ion exchange material, wherein at least a part of its ion exchange capacity is loaded with magnesium ions. 110-. (canceled)11. A device for enriching drinking water with magnesium ions , comprising an ion exchanger which contains a weakly acidic ion exchanger material , the ion exchanger material being loaded at least to a part of its ion exchanger capacity with magnesium ions and loaded in the range of 70 to 30% of its ion exchanger capacity with hydrogen ions.12. The device of claim 11 , wherein the ion exchanger material comprises a weakly acidic cationic exchanger resin.13. The device of claim 11 , wherein the ion exchanger material is loaded with magnesium ions in the range of 30 to 70% of its ion exchanger capacity.14. The device of claim 11 , wherein the ion exchanger comprises a bed made of weakly acidic ion exchanger material.15. The device of claim 11 , further comprising a filter arranged before or after the ion exchanger material in the direction of the flow of water through the ion exchanger.16. The device of claim 11 , wherein the ion exchanger comprises a part of a cartridge for use in a drinking water container.17. A cartridge for use in a water treatment system claim 11 , comprising:a cartridge housing which is insertable into a water treatment system;an ion exchanger material disposed in the cartridge housing, the ion exchanger material being loaded at least to a part of its ion exchanger capacity with magnesium ions and loaded in the range of 70 to 30% of its ion exchanger capacity with hydrogen ions.18. The cartridge of claim 17 , wherein the ...

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Номер записи: 49
02-01-2020 дата публикации

HIGH-PURITY CARBOXYLIC ACID ESTER AND METHOD FOR PRODUCING SAME

Номер: US20200002264A1
Автор: MUNEYASU Kuniaki
Принадлежит: MITSUBISHI GAS CHEMICAL COMPANY, INC.

A method for producing a high-purity carboxylic acid ester, the method including bringing a crude carboxylic acid ester that contains anionic impurities and Ag, Al, Au, Ca, Cr, Cu, Fe, K, Mg, Na, Sn, and Zn metal impurities into contact with a cation-exchange resin, followed by bringing the crude carboxylic acid ester into contact with an anion-exchange resin to obtain to provide a high-purity carboxylic acid ester in which the Ag, Al, Au, Ca, Cr, Cu, Fe, K, Mg, Na, Sn, and Zn metal impurity content are each less than 1 ppb and the anionic impurity content is less than 1 ppm. 1. A method for producing a high-purity carboxylic acid ester , the method comprising:contacting a first carboxylic acid ester composition that contains anionic impurities and at least silver, aluminum, gold, calcium, copper, iron, potassium, magnesium, sodium, tin, and zinc as metal impurities with a first weakly basic anion-exchange resin to obtain a second carboxylic acid ester composition;contacting the second carboxylic acid ester composition with a strongly acidic cation-exchange resin to obtain a third carboxylic acid ester composition; andcontacting the third carboxylic acid ester composition with a second weakly basic anion-exchange resin to obtain the high-purity carboxylic acid ester,wherein:an amount of the silver, the aluminum, the gold, the calcium, the chromium, the copper, the iron, the potassium, the magnesium, the sodium, the tin, and the zinc metal impurities in the high-purity carboxylic acid ester is each less than 1 ppb, andan amount of the anionic impurities in the high-purity carboxylic acid ester is less than 1 ppm.2. The method according to claim 1 , wherein the carboxylic acid ester is at least one selected from the group consisting of propyl lactate claim 1 , methyl α-hydroxyisobutyrate claim 1 , ethyl α-hydroxyisobutyrate claim 1 , propyl α-hydroxyisobutyrate claim 1 , butyl α-hydroxyisobutyrate claim 1 , methyl β-hydroxyisobutyrate claim 1 , ethyl β- ...

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Номер записи: 50
03-01-2019 дата публикации

Purification method

Номер: US20190002363A1
Автор: Janne Olsen FRENVIK, Olav B. Ryan
Принадлежит: Bayer AG

The invention provides a method for the purification of complexed 227Th from a mixture comprising complexed 227Th and 223Ra (complexed or in solution), said method comprising: i) preparing a first solution comprising a mixture of complexed 227Th ions and 223Ra ions in a first aqueous buffer; ii) loading said first solution onto a separation material; iii) eluting complexed 227Th from said separation material whereby to generate a second solution comprising complexed 227Th; iv) Optionally rinsing said separation material using a first aqueous washing medium; The invention additionally provides a purified 227Th solution, a pharmaceutical product and its use in treatment of disease such as cancer and a kit for generation of such a product.

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Номер записи: 51
05-01-2017 дата публикации

MODIFIED BIOPOLYMERS AND METHODS OF PRODUCING AND USING THE SAME

Номер: US20170002098A1
Автор: Ayoub Ali, Bray James Charles, Chan Ryan Nicholas
Принадлежит:

Modified biopolymers, such as, charge-modified biopolymers, cross-linked biopolymers, and cross-linked, charge-modified biopolymers are provided along with methods of producing and using the same. 1. A method for producing a cross-linked , charge-modified biopolymer comprising:combining a biopolymer and at least one charge-modifying agent to form a homogenous reaction blend;reacting the biopolymer and the at least one charge-modifying agent in the homogenous reaction blend; andcross-linking the biopolymer in the homogeneous reaction blend to form a cross-linked, charge-modified biopolymer.2. The method of claim 1 , wherein the combining step further comprises combining a plasticizer and optionally a catalyst with the biopolymer and the at least one charge-modifying agent to form the homogenous reaction blend.3. The method of claim 1 , wherein the cross-linking step further comprises reacting the charge-modified biopolymer with at least one cross-linking agent claim 1 , optionally in the presence of an initiator.4. The method of claim 1 , wherein the reacting and cross-linking steps occur simultaneously.5. The method of any one of claim 1 , further comprising foaming the cross-linked claim 1 , charge-modified biopolymer.6. The method of claim 1 , wherein the cross-linked claim 1 , charge-modified biopolymer comprises a plurality of void spaces formed therein having an average diameter of about 0.1 to about 500 microns.7. The method of claim 1 , wherein the biopolymer comprises at least two different biopolymers claim 1 , optionally wherein one of the at least two different biopolymers is a charge-modified biopolymer.8. The method of claim 1 , wherein the cross-linked claim 1 , charge-modified biopolymer has a net positive charge or a net negative charge.9. The method of claim 1 , wherein the cross-linked claim 1 , charge-modified biopolymer is a polyampholyte.10. The method of claim 1 , wherein the combining step comprises melting blending the biopolymer and the at ...

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Номер записи: 52
01-01-2015 дата публикации

Microporous Zirconium Silicate for the Treatment of Hyperkalemia

Номер: US20150004235A1
Автор: GUILLEM Alvaro F., KEYSER Donald Jeffrey
Принадлежит:

The present invention relates to novel microporous zirconium silicate compositions that are formulated to remove toxins, e.g. potassium ions, from the gastrointestinal tract at an elevated rate without causing undesirable side effects. The preferred formulations are designed avoid increase in pH of urine in patients and/or avoid potential entry of particles into the bloodstream of the patient. Also disclosed is a method for preparing high purity crystals of UZSi-9 exhibiting an enhanced level of potassium exchange capacity. These compositions are particularly useful in the therapeutic treatment of hyperkalemia. 146-. (canceled)47. A cation exchange composition comprising a zirconium silicate of formula (I):{'br': None, 'sub': p', 'x', '1-x', 'n', 'y', 'm, 'AMZrSiGeO\u2003\u2003(I),'}where A is a potassium ion, hydronium ion or mixtures thereof, M is at least one framework metal, wherein the framework metal is hafnium (4+), tin (4+), niobium (5+), titanium (4+), cerium (4+), germanium (4+), praseodymium (4+), terbium (4+) or mixtures thereof, “p” has a value from about 1 to about 20, “x” has a value from 0 to less than 1, “n” has a value from about 0 to about 12, “y” has is value from 0 to about 12, “m” has a value from about 3 to about 36 and 1≦n+y≦12,wherein the composition exhibits a median particle size of greater than 3 microns and less than 7% of the particles in the composition have a diameter less than 3 microns.48. The composition of claim 47 , wherein 4% of the particles in the composition have a diameter less than 3 microns.49. The composition of claim 47 , wherein less than 1% of the particles in the composition have a diameter less than 3 microns.50. The composition of claim 47 , wherein the median particle size ranges from 5 to 1000 microns.51. The composition of claim 47 , wherein the median particle size ranges from 20 to 100 microns.53. The composition of claim 47 , wherein the zirconium silicate is a ZS-1.54. The composition of claim 47 , wherein ...

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Номер записи: 53
04-01-2018 дата публикации

COMPOUND COMPRISING AROMATIC RING, POLYMER COMPRISING SAME, AND POLYELECTROLYTE MEMBRANE USING SAME

Номер: US20180006320A1
Автор: Han Joong Jin, Jang Yong Jin, JUNG Sehee, KANG Esder, KIM Youngjea, RYU Hyun Woog, YU Yunah
Принадлежит: LG CHEM, LTD.

The present specification relates to a compound comprising an aromatic ring, a polymer comprising the same, a polyelectrolyte membrane comprising the same, a membrane-electrode assembly comprising the polyelectrolyte membrane, a fuel cell comprising the membrane-electrode assembly, and a redox flow battery comprising the polyelectrolyte membrane. 2. The compound of claim 1 , wherein R1 and R5 are a halogen group claim 1 , and R2 to R4 are hydrogen.3. The compound of claim 1 , wherein R2 and R5 are a halogen group claim 1 , and R1 claim 1 , R3 claim 1 , and R4 are hydrogen.4. The compound of claim 1 , wherein R3 and R5 are a halogen group claim 1 , and R1 claim 1 , R2 claim 1 , and R4 are hydrogen.5. The compound of claim 1 , wherein R2 and R4 are a halogen group or a hydroxy group claim 1 , and R1 claim 1 , R3 claim 1 , and R5 are hydrogen.6. The compound of claim 1 , wherein at least one of R7 to R9 is —SOH or —SOM claim 1 , the others are hydrogen claim 1 , and the definition of M is the same as that in Chemical Formula 1.8. A polymer comprising a monomer derived from the compound of .10. A polyelectrolyte membrane comprising the polymer of .11. The polyelectrolyte membrane of claim 10 , wherein the polyelectrolyte membrane has an ion exchange capacity (IEC) value of 0.01 mmol/g to 7 mmol/g.12. The polyelectrolyte membrane of claim 10 , wherein the polymer has a weight average molecular weight of 500 or more and 5 claim 10 ,000 claim 10 ,000 or less (g/mol).13. The polyelectrolyte membrane of claim 10 , wherein the polyelectrolyte membrane has a thickness of 1 μm or more and 500 μm or less.14. The polyelectrolyte membrane of claim 10 , wherein the polyelectrolyte membrane has ion conductivity of 0.01 S/cm or more and 0.5 S/cm or less.15. A membrane-electrode assembly comprising:an anode;a cathode; and{'claim-ref': {'@idref': 'CLM-00010', 'claim 10'}, 'the polyelectrolyte membrane of disposed between the anode and the cathode.'}16. A polyelectrolyte-type fuel cell ...

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Номер записи: 54
12-01-2017 дата публикации

METHOD FOR PURIFYING PEGylated ERYTHROPOIETIN

Номер: US20170008941A1
Автор: Falkenstein Roberto, KOEHNLEIN Wolfgang, Kuhne Wolfgang, Schurig Hartmut
Принадлежит: Hoffmann-La Roche Inc.

Herein is reported a method for the purification of a protein comprising erythropoietin and a single poly (ethylene glycol) residue from reaction by-products or not reacted starting material by a cation exchange chromatography method. It has been found that by employing a cation exchange SP Sephacryl™ S 500 HR chromatography material conditioned to a conductivity of 21 mS/cm and a linear gradient elution a fusion protein of erythropoietin and a single poly (ethylene glycol) residue can be obtained in a single step with high purity and yield. 1. A method for obtaining a protein , which comprises erythropoietin and a single poly (ethylene glycol) residue , comprising the following steps:a) applying a solution comprising a mixture of erythropoietin and conjugates of erythropoietin and poly (ethylene glycol) with one or more poly (ethylene glycol) residues per erythropoietin molecule to a column, comprising SP Sephacryl™ S 500 HR chromatography material, to which a solution with a conductivity of about 21 mS/cm has been applied,b) applying a solution with a conductivity of about 21 mS/cm to the column and thereby recovering free poly (ethylene glycol), and proteins comprising two or more poly (ethylene glycol) residues,c) applying a solution with linearly increasing conductivity up to a final value of about 62.5 mS/cm to the column and thereby recovering separately the protein, which comprises erythropoietin and a single poly (ethylene glycol) residue, and erythropoietin, whereby the protein comprising erythropoietin and a single poly (ethylene glycol) residue is recovered first.2. The method according to claim 1 , characterized in that the solution with a conductivity of about 21 mS/cm is a solution with a pH value of from pH 2.5 to pH 3.5.3. The method according to any one of the preceding claims claim 1 , characterized in that the solution with a conductivity of about 21 mS/cm is a phosphate buffered solution with a pH value of from pH 2.5 to pH 3.5.4. The method ...

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Номер записи: 55
14-01-2021 дата публикации

PROCESS FOR REMOVING COBALT, LEAD, CADMIUM AND CHROMIUM IONS FROM BODILY FLUIDS USING METALLATE ION EXCHANGE COMPOSITIONS

Номер: US20210008266A1
Автор: Jakubczak Paulina, Lewis Gregory John, Marte Julio C., Sheets William Christopher
Принадлежит:

A process for removing Co, Pb, Cd and Cr toxins from bodily fluids is disclosed. The process involves contacting the bodily fluid with an ion exchange composition to remove the metal toxins in the bodily fluid, including blood and gastrointestinal fluid. Alternatively, blood can be contacted with a dialysis solution which is then contacted with the ion exchange composition. The ion exchange compositions are represented by the following empirical formula: 2. The process of wherein the bodily fluid is selected from the group consisting of whole blood claim 1 , blood plasma claim 1 , or other component of blood claim 1 , gastrointestinal fluids and dialysate solution containing blood claim 1 , blood plasma claim 1 , other component of blood or gastrointestinal fluids.3. The process of where M is hafnium (+4) or niobium.4. The process of where x=0.5. The process of where a+c+d=0.6. The process of where A is a mixture of calcium and sodium.7. The process of wherein the ion exchanger is packed into hollow fibers incorporated into a membrane.8. The process of wherein said ion exchanger is contained on particles coated with a coating comprising a cellulose derivative composition.9. The process of wherein said process is a hemoperfusion process wherein said bodily fluid is passed through a column containing said ion exchanger.10. The process of wherein a dialysate solution is introduced into a peritoneal cavity and then is flowed through at least one adsorbent bed containing at least one of said ion exchanger.11. The process of wherein said ion exchanger is formed into a shaped article to be ingested orally claim 1 , followed by ion exchange between said ion exchanger and said Co claim 1 , Pb claim 1 , Cd claim 1 , Cr toxins contained in a gastrointestinal fluid in a mammal's intestines and then by excretion of said ion exchanger containing said toxins.12. The process of wherein said shaped article is coated with a coating that is not dissolved by conditions within a stomach ...

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Номер записи: 56
14-01-2021 дата публикации

PROCESS FOR REMOVING STRONTIUM IONS FROM BODILY FLUIDS USING METALLATE ION EXCHANGE COMPOSITIONS

Номер: US20210008267A1
Автор: Jakubczak Paulina, Lewis Gregory John, Marte Julio C., Sheets William Christopher
Принадлежит:

A process for removing Sr toxins from bodily fluids is disclosed. The process involves contacting the bodily fluid with an ion exchanger to remove the metal toxins in the bodily fluid, including blood and gastrointestinal fluid. Alternatively, blood can be contacted with a dialysis solution which is then contacted with the ion exchanger. The ion exchangers are represented by the following empirical formula: 1. A process for removing Sr toxins from bodily fluids selected from the group consisting of blood , gastrointestinal fluids and dialysate solution comprising contacting the fluid containing the toxins with a metallate ion exchanger at ion exchange conditions thereby removing the toxins from the fluid , the metallate ion exchanger selected from the group consisting of zirconium metallate , titanium metallate , tin metallate , multinary metallate containing more than one of zirconium , titanium and tin , and mixtures thereof , the metallates respectively having an empirical formula on an anhydrous basis of:{'br': None, 'sub': m', 'a', 'b', 'c', 'd', 'x', 'y, 'AZrTiSnMSiO'}where A is an exchangeable cation selected from the group consisting of potassium ion, sodium ion, rubidium ion, cesium ion, calcium ion, magnesium ion, hydronium ion or mixtures thereof, M is at least one framework metal selected from the group consisting of hafnium (4+) or niobium (5+), “m” is the mole ratio of A to total metal (total metal=Zr+Ti+Sn+M) and has a value from 0.10 to 9, “a” is the mole fraction of the total metal that is Zr and has a value from zero to 1, “b” is the mole fraction of the total metal that is Ti and has a value from zero to 1, “c” is the mole fraction of the total metal that is Sn and has a value from zero to 1, a+b+c>0, “d” is the mole fraction of the total metal that is M and has a value from zero to less than 1, a+b+c+d=1 and, “x” has a value from 0 to 6, and “y” has a value from 2.1 to 19.2. The process of wherein the bodily fluid is selected from whole blood ...

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Номер записи: 57
12-01-2017 дата публикации

POLYMER OF FLUORINE-CONTAINING SULFONATED POLY(ARYLENE ETHER)S AND METHOD OF MANUFACTURING THE SAME

Номер: US20170009016A1
Автор: BRITTON Benjamin, Holdcroft Steven, HSU Yi-yun, Huang Wen-yao, LEE CHUN-CHE, Lee Hsu-feng, PANG Jun-jie, TSENG Yu-chao
Принадлежит:

A polymer of fluorine-containing sulfonated poly(arylene ether)s and a manufacturing method thereof are provided. The polymer is formed by processing a nucleophilic polycondensation between a fluorine-containing monomer having an electron-withdrawing group and a multi-phenyl monomer. A main structure of the polymer of fluorine-containing sulfonated poly(arylene ether)s has a first portion with fluoro or trifluoromethyl substituted phenyl groups, and a second portion with sulfonated phenyl groups. 3. The polymer of fluorine-containing sulfonated poly(arylene ether)s according to claim 1 , wherein the polymer of fluorine-containing sulfonated poly(arylene ether)s is coated to form a thin film which is used as a proton exchange membrane and applied to a fuel cell system.804. The method according to claim 4 , wherein the step (S) is performed by: dissolving the polymer of fluorine-containing poly(arylene ether)s in dichloromethane to be a first solution;adding a mixture formed by lauric acid and chlorosulfonic acid into the first solution under a nitrogen atmosphere, so as to be a second solution which proceeds the sulfonation modification;adding cyclohexane and ether into the second solution after the sulfonation modification, so as to be a third solution;separating a reaction product from the third solution, and collecting the reaction product; anddrying the reaction product to obtain the polymer of fluorine-containing sulfonated poly(arylene ether)s.90504. The method according to claim 4 , wherein the method further comprises a step (S) after the step (S) for:dissolving the polymer of sulfonated poly(arylene ether)s in an organic solvent by phase changing, and forming a thin film by coating.10. The method according to claim 9 , wherein the thin film is used as a proton exchange membrane and applied to a fuel cell system. This invention is partly disclosed in a thesis entitled “Fluorine-containing Hydrocarbon Ionic Polymer as Proton Exchange Membrane in PEMFC” on Jul. ...

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Номер записи: 58
12-01-2017 дата публикации

POLYMERIC ION CONDUCTOR WITH IMPROVED THERMAL CHARACTERISTICS

Номер: US20170009032A1
Автор: Hudson Reuben H., Katz Jeffrey L.
Принадлежит:

The present disclosure provides polymers comprising at least one repeat unit represented by any one of structural formulas (IA)-(IE) disclosed herein, for example: 6. The polymer of claim 1 , wherein:{'sup': 1', '6', '6', '6', '6', '6', '4', '8', '9, 'sub': 2', '3', '2', '2', '3', '2', '2', '1', '6', '2', '6', '2', '6', '3', '10', '6', '10', '1', '6', '6', '10', '1', '6', '6', '10', '1', '10', '1', '6, 'b': '13', 'each Ris, independently, R—COOH, R—SOH, R—SOH, R—POH, R—POH, P(O)(OR), a C-Calkyl, a C-Calkenyl, a C-Calkynyl, a C-Ccycloalkyl, a 5-10 atom heterocyclyl, a C-Caryl, a 5-10 atom heteroaryl, a C-Calkoxy, a C-Caryloxy, a C-Calkylthio, a C-Carylthio, a C-Csulfone, —(NRR)—, a halo, hydroxyl, —CN, nitro, or a C-Cacyl; and'}{'sup': 3', '6', '6', '6', '6', '6', '4', '8', '9, 'sub': 2', '3', '2', '2', '3', '2', '2', '1', '6', '2', '6', '2', '6', '3', '10', '6', '10', '1', '6', '6', '10', '1', '6', '6', '10', '1', '10', '1', '6, 'each Ris, independently, R—COOH, R—SOH, R—SOH, R—POH, R—POH, —P(O)(OR), a C-Calkyl, a C-Calkenyl, a C-Calkynyl, a C-Ccycloalkyl, a 5-10 atom heterocyclyl, a C-Caryl, a 5-10 atom heteroaryl, a C-Calkoxy, a C-Caryloxy, a C-Calkylthio, a C-Carylthio, a C-Csulfone, —(NRR)—, a halo, hydroxyl, —CN, nitro, or a C-Cacyl.'}7. The polymer of claim 6 , wherein:{'sup': 1', '6', '6', '6', '6', '6', '4, 'sub': 2', '3', '2', '2', '3', '2', '2', '1', '6', '2', '6', '2', '6', '3', '10', '6', '10', '1', '6', '1', '6, 'each Ris, independently, R—COOH, R—SOH, R—SOH, R—POH, R—POH, —P(O)(OR), a C-Calkyl, a C-Calkenyl, a C-Calkynyl, a C-Ccycloalkyl, a 5-10 atom heterocyclyl, a C-Caryl, a 5-10 atom heteroaryl, a C-Calkoxy, a C-Calkylthio, a halo, —CN, or nitro; and'}{'sup': 3', '6', '6', '6', '6', '6', '4, 'sub': 2', '3', '2', '2', '3', '2', '2', '1', '6', '2', '6', '2', '6', '3', '10', '6', '10', '1', '6', '1', '6, 'each Ris, independently, R—COOH, R—SOH, R—SOH, R—POH, R—POH, —P(O)(OR), a C-Calkyl, a C-Calkenyl, a C-Calkynyl, a C-Ccycloalkyl, a 5-10 atom ...

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Номер записи: 59
11-01-2018 дата публикации

UREA SULFATE AND SODIUM CHLORIDE BLEND FOR REGENERATION OF CATION EXCHANGE RESINS

Номер: US20180008974A1
Автор: Everson Terrence P., Tan Lylien, Toetschinger Mark, Voss Peter, Wen Li
Принадлежит:

Methods and systems for an integrated acid regeneration of ion exchange resins are disclosed for use in cleaning applications. Acid resins designed for use in a variety of cleaning application using a treated, softened, acidic water source are disclosed. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins within a cleaning application, e.g. ware wash machine, are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications. 1. A method for treating hard water for use in a cleaning application using an acid regenerated ion exchange resin comprising:contacting a hard water source for use in a dilution system or a ware wash machine with a water treatment composition, wherein the water treatment composition comprises at least one ion exchange resin, wherein the ion exchange resin generates a treated water source by exchanging protons on said resin for dissolved cations including water hardness ions and total dissolved solids in said water source, wherein said ion exchange resin is an acid form or in an inert metal form, and wherein said ion exchange resin is regenerated using an acid salt regenerant;generating the treated water source within a ware wash machine; andproviding the treated water source to a chamber into which articles are placed for cleaning;wherein the treated water source meets a defined water specification, and wherein the water specification is a softened, acidic water with a total dissolved solids (TDS) of less than about 300 ppm, a hardness level of less than about 2 grains and a pH less than about 6,wherein the use of said treated water source improves cleaning efficacy as measured by a reduction in spotting and filming and/or preventing scale build up on articles and ...

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Номер записи: 60
14-01-2021 дата публикации

BIPOLAR MEMBRANE AND PROCESS FOR PRODUCING THE SAME

Номер: US20210008499A1
Автор: Fukuta Kenji, KAWASHIMA Minoru
Принадлежит: ASTOM CORPORATION

A bipolar membrane BP characterized in that particles of a basic metal chloride are distributed in the interface between a cation-exchange membrane and an anion-exchange membrane 1. A bipolar membrane in which a cation-exchange membrane and an anion-exchange membrane are joined together , characterized in that particles of a basic metal chloride are distributed in the interface between said cation-exchange membrane and said anion-exchange membrane.2. The bipolar membrane according to claim 1 , wherein the metal contained in said basic metal chloride is Sn or Ru.3. The bipolar membrane according to claim 1 , wherein the particles of said basic metal chloride are distributed in an amount of 0.01 to 5 g/m.4. A process for producing a bipolar membrane comprising the steps of:providing an ion-exchange membrane that has been prepared in advance as a base membrane;providing a coating liquid in which the particles of a basic metal chloride have been dispersed, and applying the coating liquid onto the surface of said base membrane followed by drying so that the particles of said basic metal chloride are distributed on the surface of said base membrane; andapplying a counter ion-exchange resin solution onto the surface of said base membrane on which the particles of said basic metal chloride have been distributed followed by drying so as to form a layer of the counter ion-exchange resin on said base membrane. This invention relates to a bipolar membrane in which a cation-exchange membrane and an anion-exchange membrane are stuck together, and to a process for producing the same.The bipolar membrane is a composite membrane in which a cation-exchange membrane and an anion-exchange membrane are stuck together, and has a function of establishing a phenomenon called water splitting which dissociates the water in the membrane into protons and hydroxide ions when a voltage is applied to both sides of the bipolar membrane which is dipped in an aqueous solution. By utilizing this ...

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Номер записи: 61
14-01-2021 дата публикации

Process for removing mercury ions from bodily fluids using titanium metallate ion exchange compositions

Номер: US20210008537A1
Автор: Gregory John LEWIS, Julio C. Marte, Paulina Jakubczak, William Christopher Sheets
Принадлежит: UOP LLC

A process for removing Hg 2+ toxins from bodily fluids is disclosed. The process involves contacting the bodily fluid with a titanium metallate ion exchanger to remove the metal toxins in the bodily fluid, including blood and gastrointestinal fluid. Alternatively, blood can be contacted with a dialysis solution which is then contacted with the ion exchanger. The titanium metallate ion exchangers are represented by the following empirical formula: A m TiNb a Si x O y . A composition is provided with the combination of the titanium metallate ion exchanger and bodily fluids or dialysis solutions. Also, provided is an apparatus comprising a matrix and the titanium metallate ion exchanger.

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Номер записи: 62
14-01-2021 дата публикации

Multi-Column Continuous Resin Regeneration System

Номер: US20210008539A1
Автор: Pool Russell D., Vanier Jay
Принадлежит:

A continuous resin regeneration system includes a process by which resin in need of being recharged is continuously recharged and cleaned with a plurality of two-set filtration columns so that resin regeneration and the flow of influent is continuous and interrupted. Downstream filtration columns also undergo this cycling but at slower and related rates as the first column with the dirtiest water will naturally degrade resin faster than the downstream columns. Contaminated influent is cleaned by the continuously recharged resin in multiple column sets. The degree of cleaning of earlier filtration columns affects the resin flow rate of later filtration columns. 1. A continuous resin regeneration system for use in cleaning a water stream from a contaminated water reservoir , comprising:a first anion resin set having a first anion column and a second anion column in fluid communication with the first anion column, said first anion column and said second anion column of said first anion resin set including an anion resin;a first cation resin set having a first cation column and a second cation column in fluid communication with the first cation column, said first cation column and said second cation column of said first cation resin set including a cation resin;a first set control valve in fluid communication with the water reservoir, with said first anion column of said first anion resin set, and with said second anion column of said first anion resin set;a second set control valve in fluid communication with the water reservoir, said first cation column of said first cation resin set, and with said second cation column of said first cation resin set; anda controller in data communication with said first set control valve, said controller configured to determine if said anion resin associated with said first anion column of said first anion resin set is greater than a predetermined parameter and, if so, to actuate said first set control valve to direct the water stream ...

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Номер записи: 63
27-01-2022 дата публикации

Resin for desalination and process of regeneration

Номер: US20220025091A1
Автор: Mojtaba Taseidifar, Richard Mark Pashley, Tanita Gettongsong
Принадлежит: NEWSOUTH INNOVATIONS PTY LTD

Disclosed is an ion exchange resin comprising a polymer having strong acid and strong base groups on the same polymer. In some forms the resin comprises a high density of polymers having strong acid and strong base groups on the same polymer. In some forms the strong acid and strong base groups are in close proximity to one another on the polymer. The disclosure further relates to a mixed bead resin for high salt level desalination.

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Номер записи: 64
10-01-2019 дата публикации

ISOTOPE PREPARATION METHOD

Номер: US20190009265A1
Автор: Karlson Jan Roger, MANTZILAS Dimitrios, ØSTBY Judit Tjelmeland
Принадлежит:

The present invention comprises a method for the generation of Th of pharmaceutically tolerable purity comprising i) preparing a generator mixture comprising Ac, Th and Ra; ii) loading said generator mixture onto a strong base anion exchange resin; iii) eluting a mixture of said Ra and Ac from said strong base anion exchange resin using a first mineral acid in an aqueous solution; iv) eluting Th from said strong base anion exchange resin using a second mineral acid in an aqueous solution whereby to generate a first Th solution containing contaminant Ra and Ac; v) loading the first Th solution onto a strong acid cation exchange resin; vi) eluting at least a part of the contaminant Ra and Ac from said strong acid cation exchange resin using a third mineral acid in aqueous solution; and vii) eluting the Th from said strong acid cation exchange resin using a first aqueous buffer solution to provide a second Th solution. Purified thorium-227 of pharmaceutical purity and a pharmaceutical composition comprising the same are also provided. 1) A method for the generation of Th of pharmaceutically tolerable purity comprising the steps of:{'sup': 227', '227', '223, 'i) preparing a generator mixture comprising Ac, Th and Ra;'}ii) loading said generator mixture onto a strong base anion exchange resin;{'sup': 223', '227, 'iii) eluting a mixture of said Ra and Ac from said strong base anion exchange resin using a first mineral acid in an aqueous solution;'}{'sup': 227', '227', '223', '227, 'iv) eluting Th from said strong base anion exchange resin using a second mineral acid in an aqueous solution whereby to generate a first Th solution containing contaminant Ra and Ac;'}{'sup': '227', 'v) loading the first Th solution onto a strong acid cation exchange resin;'}{'sup': 223', '227, 'vi) eluting at least a part of the contaminant Ra and Ac from said strong acid cation exchange resin using a third mineral acid in aqueous solution; and'}{'sup': 227', '227, 'vii) eluting the Th from ...

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Номер записи: 65
10-01-2019 дата публикации

PURIFICATION PROCESS FOR HYDROPHILIC ORGANIC SOLVENT

Номер: US20190009266A1
Автор: Abe Shinnosuke, Iida Masonori, Ishibashi Ryo, Kishizaki Osamu, Masudo Takashi, Ohba Kaoru, Takano Kenji, YAMASHITA Yusuke
Принадлежит:

Methods for the removal of ionic contaminants from a hydrophilic organic solvent by a mixed bed of ion exchange resins are described. A mixed bed of ion exchange resins with gel-type strong-acid cationic ion exchange resin with a specific moisture holding capacity and gel-type anionic ion exchange resin is used in some embodiments of such methods. 1. A method for removing ionic contamination from a hydrophilic organic solvent , the method comprising: (a) the cationic ion exchange resins are hydrogen (H) form strong-acid cationic ion exchange resins with a moisture holding capacity from 40 to 55 wt %, and', {'sup': 3', '2, '(b) both the cationic ion exchange resins and the anionic ion exchange resins have a porosity of 0.001 to 0.1 cm/g, an average pore size of 0.001 to 1.7 nm, and a B.E.T. surface area of 0.001 to 10 m/g.'}], 'contacting the hydrophilic organic solvent with a mixed bed of ion exchange resins comprising cationic ion exchange resins and anionic ion exchange resins, wherein2. The method of claim 1 , wherein the mixed bed of ion exchange resins show 10 ppb or less of total organic carbon measured by the following method:washing the mixed bed of ion exchange resins with 25 bed volumes (BV) of ultra pure water for 24 hours; and then analyzing total organic carbon of the ultra pure water.3. The method of claim 1 , wherein the contents of Na claim 1 , K claim 1 , Ca claim 1 , Al claim 1 , Fe claim 1 , Ni claim 1 , Zn claim 1 , Cu claim 1 , Cr and Sn in the H form strong cationic ion exchange resins and the anionic ion exchange resins are each 10 mg/kg or less based on dry weight of the ion exchange resins.4. A hydrophilic organic solvent obtained by the method of claim 1 , wherein the concentration of Na claim 1 , K claim 1 , Ca claim 1 , Al claim 1 , Fe claim 1 , Ni claim 1 , Zn claim 1 , Cu claim 1 , Cr and Sn in the hydrophilic organic solvent after contacting with the mixed bed of ion exchange resins is each 0.1 ppb or less.5. A method for removing ...

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Номер записи: 66
10-01-2019 дата публикации

PURIFICATION PROCESS FOR HYDROLYSABLE ORGANIC SOLVENT

Номер: US20190009267A1
Автор: Abe Shinnosuke, Iida Masonori, Ishibashi Ryo, Kishizaki Osamu, Masudo Takashi, Ohba Kaoru, Takano Kenji, YAMASHITA Yusuke
Принадлежит:

Methods for the removal of ionic contaminants from hydrolysable organic solvent by ion exchange resins are described. A mixed bed of ion exchange resin with cationic ion exchange resin and weak-base anionic ion exchange resin is used in such methods. 1. A method for removing ionic contaminants from a hydrolysable organic solvent , the method comprising contacting the hydrolysable organic solvent with a mixed bed of ion exchange resin comprising cationic ion exchange resins and anionic ion exchange resins , wherein the anionic ion exchange resins are selected from weak-base anionic ion exchange resins.2. The method of claim 1 , wherein the weak-base anionic ion exchange resins have tertiary amine groups.3. The method of claim 1 , wherein the content of water in the cationic ion exchange resins and the anionic ion exchange resins are 5 weight % or less respectively.4. The method of claim 1 , wherein the contents of Na claim 1 , K claim 1 , Ca claim 1 , Al claim 1 , Fe claim 1 , Ni claim 1 , Zn claim 1 , Cu claim 1 , Cr and Sn in the cationic ion exchange resins and the anionic ion exchange resins are 5 ppm or less based on the dry-weight of the cationic ion exchange resins and anionic ion exchange resins.5. The method of claim 1 , the mixed bed of ion exchange resin comprises 10 ppb or less of leachable species of low-molecular organic compound measured by the following method:washing the ion exchange resin by 50 BV/Hr of ultra pure water flow for 2 hours, analyzing total organic carbon values of water before and after contacting with the washed ion exchange resin, then calculating the difference of the total organic carbon values of the water by subtracting the total organic carbon value of water after contacting with the ion exchange resin from the total organic carbon value of water before contacting with the ion exchange resin.6. The method of claim 1 , wherein the hydrolysable organic solvent is a compound having an ester bond.7. A compound having an ester bond ...

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Номер записи: 67
10-01-2019 дата публикации

MONTMORILLONITE SLURRY, CLAY FILM AND METHOD OF PRODUCING MONTMORILLONITE SLURRY

Номер: US20190009431A1
Автор: KUBOTA Munehiro
Принадлежит: KUNIMINE INDUSTRIES CO., LTD.

A montmorillonite slurry, containing a lithium-immobilized montmorillonite having a cation exchange capacity of 50 meq/100 g or less, ammonia, water, and an organic solvent, in which the organic solvent includes at least one kind of organic solvent selected from the group consisting of acetonitrile and methyl ethyl ketone, the proportion occupied by the organic solvent in the total amount of the water and the organic solvent in the slurry is 10% by mass or more and 90% by mass or less, and the content of ammonia in the slurry is 0.1 mmol or more per gram of the lithium-immobilized montmorillonite in the slurry; 2. The montmorillonite slurry according to claim 1 , wherein the lithium-immobilized montmorillonite is obtained by subjecting a lithium type montmorillonite to a heating treatment at 180° C. to 600° C.3. A clay film using the montmorillonite slurry according to .4. A method of producing a montmorillonite slurry claim 1 , comprising mixing at least a lithium-immobilized montmorillonite having a cation exchange capacity of 50 meq/100 g or less claim 1 , ammonia claim 1 , water claim 1 , and an organic solvent claim 1 ,wherein the organic solvent includes at least one kind of organic solvent selected from the group consisting of acetonitrile and methyl ethyl ketone,wherein the proportion occupied by the organic solvent in the total amount of the water and the organic solvent in the slurry is 10% by mass or more and 90% by mass or less, andwherein the mixing amount of ammonia is 0.1 mmol or more per gram of the lithium-immobilized montmorillonite.5. The method of producing a montmorillonite slurry according to claim 4 , wherein the lithium-immobilized montmorillonite is obtained by subjecting a lithium-type montmorillonite to a heating treatment at 180° C. to 600° C.6. The method according to claim 4 , wherein an aqueous ammonia solution is mixed as the ammonia. The present invention relates to a slurry formed by stably dispersing lithium-immobilized ...

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Номер записи: 68
09-01-2020 дата публикации

POROUS MATERIALS FOR SOLID PHASE EXTRACTION AND CHROMATOGRAPHY AND PROCESSES FOR PREPARATION AND USE THEREOF

Номер: US20200009545A1
Автор: Brousmiche Darryl W., Wyndham Kevin D.
Принадлежит:

The present invention provides porous materials for use in solid phase extractions and chromatography. In particular, the materials exhibit superior properties in the SPE analysis of biological materials. In certain aspects, the materials feature at least one hydrophobic component, at least one hydrophilic component and a average pore diameter of about 100 Å to about 1000 Å. In certain embodiments the materials also exhibit a nitrogen content from about 1% N to about 20% N. In certain embodiments, the materials feature at least one hydrophobic component, at least one hydrophilic component wherein more than 10% of the BJH surface area of the porous material is contributed by pores that have a diameter greater than or equal to 200 Å. 1. A porous material comprising a copolymer of a least one hydrophobic monomer and at least one hydrophilic monomer , wherein more than 10% of the BJH surface area of the porous material is contributed by pores that have a diameter greater than or equal to 200 Å225-. (canceled)26. A porous material comprising a copolymer of at least one hydrophobic monomer and at least one hydrophilic monomer , wherein said material has a median pore diameter of about 100 Å to about 1000 Å.2743-. (canceled)45102-. (canceled) This application is a continuation of U.S. application Ser. No. 14/114,440, filed Dec. 12, 2013, which is a 371 of U.S. National Phase Application of PCT/US2012/038501, filed May 18, 2012, which claims the benefit of U.S. Provisional Application Ser. No. 61/488,561, filed May 20, 2011, the entire disclosures of which are incorporated herein by this reference.Solid phase extraction (SPE) is a chromatographic technique that is widely used, e.g., for preconcentration and cleanup of analytical samples, for purification of various chemicals, and for removal of toxic or valuable substances from aqueous solutions. SPE is usually performed using a column or cartridge containing an appropriate material or sorbent. SPE procedures have been ...

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Номер записи: 69
10-01-2019 дата публикации

DEIONIZATION DEVICE

Номер: US20190010063A1
Автор: SCHMIDT Harald
Принадлежит:

A deionization device for liquids includes a first chamber for a first ion exchange agent that has a first intake opening and a first discharge opening. A second chamber for a second ion exchange agent has a second intake opening and a second discharge opening. A line connects the first chamber and the second chamber that has a third intake opening and a third discharge opening. The third intake opening is dedicated to the first discharge opening of the first chamber and the third discharge opening is dedicated to the second intake opening of the second chamber. The line also has a first regeneration opening for a first regeneration liquid, wherein the first regeneration opening can be closed for deionization, and wherein the line can be closed for regenerating the deionization device such that the third intake opening can be isolated from the third discharge opening. 1. A deionization device for liquids , comprising:a first chamber for a first ion exchange agent that has a first intake opening and a first discharge opening, a second chamber for a second ion exchange agent that has a second intake opening and a second discharge opening, a line for connecting the first chamber and the second chamber, that has a third intake opening and a third discharge opening, wherein the third intake opening is dedicated to the first discharge opening of the first chamber and the third discharge opening is dedicated to the second intake opening of the second chamber, wherein the line also has a first regeneration opening for a first regeneration liquid, wherein the first regeneration opening is closed for deionization, and wherein the line is closed for regenerating the deionization device such that the third intake opening can be is isolated from the third discharge opening.2. The deionization device according to claim 1 , wherein the line has a second regeneration opening for a second regeneration liquid claim 1 , wherein the second regeneration opening is closed for ...

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Номер записи: 70
14-01-2021 дата публикации

CATIONIC POLYMERS FOR USE AS ANION EXCHANGE POLYELECTROLYTES

Номер: US20210009728A1
Автор: Fort Eric H., Kaplun Marina M., LASKOWSKI Carl A., QUAST Matthew J., Yandrasits Michael A.
Принадлежит:

Described herein are cationic polymers having a plurality of quaternary amino groups, methods of making such polymers, and uses of such polymers as ion exchange membranes in electrochemical devices. 2. The method of claim 1 , wherein the precursor copolymer is a copolymer of ethylene and (meth)acrylic acid.3. The method of claim 1 , wherein the amine compound that is reacted with the first precursor polymer has at least two amino groups and at least one of these amino groups is a primary or secondary amino group.7. The method of claim 1 , wherein the amine compound is imidazoline claim 1 , piperazine claim 1 , morpholine claim 1 , 2 claim 1 ,6-dimethylmorpholine claim 1 , 2-azatricyclo[3.3.1.1]decane claim 1 , and 2 claim 1 ,6-diazatricyclo[3.3.1.1]decane.16. A membrane comprising the cationic polymer of claim 10 , wherein the membrane optionally further comprises a reinforcement material.17. The membrane of claim 14 , wherein the membrane has a positive charge density equal to 1 to 5 milliequivalent per gram of membrane.18. An electrochemical device comprising:an anode;a cathode;{'claim-ref': {'@idref': 'CLM-00016', 'claim 16'}, 'and a membrane positioned between the anode and cathode, wherein the membrane is according to .'} This application claims the benefit of U.S. Provisional Patent Application No. 62/641,709, filed Mar. 12, 2018, the disclosure of which is incorporated by reference herein in its entirety.This invention was made with Government support under Contract No. DE-AR0000776 awarded by DOE. The Government has certain rights in this invention.Polymeric ion exchange membranes for electrochemical devices are disclosed.The successful commercialization of base-stable anion exchange membranes has yet to be realized due to the difficulty in obtaining a polyelectrolyte capable of withstanding highly basic media (pH greater than 14) for extended periods of time without degradation and having sufficiently low membrane ionic resistance to allow for high ...

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Номер записи: 71
09-01-2020 дата публикации

PROCESS FOR THE RECOVERY OF COBALT AND TUNGSTIC ACID AND/OR ITS DERIVATIVES FROM AQUEOUS SOLUTIONS

Номер: US20200010923A1
Автор: BORSOTTI Giampietro, Digioia Francesca
Принадлежит:

This invention relates to a process for the recovery of cobalt ions and tungstic acid and/or its derivatives from aqueous solutions, such as in particular the spent catalytic waters deriving from processes for the oxidative cleavage of vegetable oils. In particular this invention relates to a process for the recovery of cobalt ions and tungstic acid and/or its derivatives which provides for the use of cation-exchange resins. 1. A process for oxidative cleavage of vegetable oils containing monounsaturated fatty acid triglycerides comprising:1) a first step of hydroxylation of the double bond present in the monounsaturated fatty acid triglycerides in the presence of a catalyst comprising tungstic acid and/or its derivatives, to yield a vicinal diol,2) a subsequent second step of oxidation of the vicinal diol in the presence of catalysts comprising cobalt salts, thereby obtaining a mixture comprising saturated monocarboxylic acids and saturated carboxylic acid triglycerides having more than one acid group,3) a step of separation of an aqueous solution containing cobalt ions and tungstic acid and/or their derivatives from said mixture of step 2) and a) removing the cobalt ions by placing said aqueous solution in contact with a cation-exchange resin;', 'b) separating said aqueous solution from said cation-exchange resin;', 'c) concentrating said aqueous solution obtained from stage b, thereby obtaining a concentrated aqueous solution containing tungstic acid and/or its derivatives,, '4) a step of separation of cobalt ions from said aqueous solution of step 3) comprising the operations ofwherein said concentrated aqueous solution obtained at the end of step 4-c) is recycled as catalyst to said first step 1) of hydroxylation.2. The process according to wherein said tungstic acid derivatives of step 1) are selected from the group consisting of phosphotungstic acid claim 1 , pertungstic acid and polytungstates and their cobalt salts.3. The process according to wherein said ...

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Номер записи: 72
09-01-2020 дата публикации

MATRICES CONTAINING LITHIUM ALUMINATES

Номер: US20200010926A1
Автор: Costeux Chunxia, ZHANG Zheng
Принадлежит:

Provided is a particulate composition comprising a collection of resin beads and LiX.2Al(OH).nHO, wherein n is 0 to 10, wherein X is a halogen, 1. A particulate composition comprising a collection of resin beads and LiX.2Al(OH).nHO ,wherein n is 0 to 10, wherein X is a halogen,wherein the resin beads contain polymer having 0.5 to 3 equivalents of amine pendant groups per liter of the particulate composition,wherein the resin beads have average pore diameter of 5 to 100 nm,wherein the collection of resin beads has harmonic mean particle diameter of 200-1000 micrometers;{'sup': '2', 'wherein the collection of resin beads has surface area of 20 to 150 m/g;'}and wherein aluminum is present in an amount of 14.5% percent or higher, by weight of aluminum atoms based on the total weight of the particulate composition.2. The particulate composition of claim 1 , wherein X is chlorine.3. The particulate composition of claim 1 , wherein the aluminum is present in an amount of 15% percent or higher claim 1 , by weight of aluminum atoms based on the total weight of the particulate composition.4. A method of making a particulate composition comprising depositing LiX.2Al(OH).nHO claim 1 ,wherein n is 0 to 10, wherein X is a halogen, in the pores of a preliminary particulate composition, wherein the preliminary particulate composition comprises a collection of preliminary resin beads,wherein the preliminary resin beads contain polymer having 0.5 to 3 equivalents of amine pendant groups per liter of the preliminary particulate composition,wherein the preliminary resin beads have average pore diameter of 5 to 25 nm,wherein the collection of preliminary resin beads has harmonic mean particle diameter of 200-1000 micrometers;{'sup': '2', 'wherein the collection of preliminary resin beads has surface area of 20 to 150 m/g.'}5. A method of removing lithium from a brine claim 1 ,wherein the brine comprises dissolved lithium cations in an amount of 50 ppm or more of lithium based on the ...

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Номер записи: 73
14-01-2016 дата публикации

METHOD OF PRODUCING CONDUCTIVE POLYMER PARTICLE DISPERSION, AND METHOD OF PRODUCING ELECTROLYTIC CAPACITOR USING SAID CONDUCTIVE POLYMER PARTICLE DISPERSION

Номер: US20160012971A1
Автор: Aoyama Tatsuji, TAKATANI KAZUHIRO
Принадлежит:

A dispersion liquid including one of thiophene and derivatives thereof, a polyanion, and a solvent is prepared. Then, the dispersion liquid is mixed with an oxidizing agent so as to oxidatively polymerize the one of thiophene and derivatives thereof. During the oxidative polymerization, a temperature of the dispersion liquid is 35° C. or less and a dissolved oxygen concentration of the dispersion liquid is 7 ppm or less. 1. A method of manufacturing a conductive polymer microparticle dispersion , the method comprising:preparing a dispersion liquid including one of thiophene and derivatives thereof, a polyanion, and a solvent; andmixing the dispersion liquid with an oxidizing agent so as to oxidatively polymerize the one of thiophene and derivatives thereof,wherein, during the oxidative polymerization, a temperature of the dispersion liquid is 35° C. or less and a dissolved oxygen concentration of the dispersion liquid is 7 ppm or less.2. The method according to claim 1 , wherein during the oxidative polymerization claim 1 , the temperature of the dispersion liquid is 20° C. or less and the dissolved oxygen concentration of the dispersion liquid is 5 ppm or less.3. The method according to claim 1 , wherein during the oxidative polymerization claim 1 , the dissolved oxygen concentration of the dispersion liquid is 3 ppm or less.4. A method of manufacturing an electrolytic capacitor claim 1 , the method comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'impregnating a capacitor element including a positive electrode, and a dielectric oxide film layer formed on the positive electrode with the conductive polymer microparticle dispersion manufactured by the method of ; and'}forming a conductive polymer solid electrolyte layer on the dielectric oxide film layer by removing a solvent component contained in the conductive polymer microparticle dispersion. 1. Technical FieldThe present invention relates to a method of manufacturing a conductive polymer ...

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Номер записи: 74
10-01-2019 дата публикации

Process for producing Gallium-68 through the irradiation of a solution target

Номер: US20190013108A1
Автор: ABRUNHOSA Antero, ALVES Francisco, ALVES Vítor
Принадлежит:

The present disclosure relates to a process for purifying and concentrating Ga isotope produced by the irradiation with an accelerated particle beam of a Zn target in solution. The process according to the present disclosure allows for the production of pure and concentrated Ga isotope in hydrochloric acid solution. The present disclosure also relates to a disposable cassette for performing the steps of purification and concentration of the process. 1. A process for producing and purifying Gallium radioisotope , the process comprising:irradiating a target containing a target solution comprising zinc using an accelerated particle beam;diluting the irradiated target solution with water;feeding the diluted target solution into a strong cation exchanger;washing the strong cation exchanger;eluting zinc isotopes from the strong cation exchanger with a zinc elution solution including acetone;washing the strong cation exchanger;{'sup': '68', 'eluting Gallium isotope from the strong cation exchanger with hydrochloric acid solution to obtain an eluted solution;'}feeding the eluted solution into a strong anion exchanger,washing the strong anion exchanger; and{'sup': '68', 'eluting Gallium isotope from the strong anion exchanger with hydrochloric acid solution to obtain a final solution'}wherein the irradiated target solution is diluted at least 5 volume times with water.2. The process according to claim 1 , wherein the irradiated target solution is diluted at least 10 volume times with water.3. The process according to claim 1 , further comprising:complementing the eluted solution with another hydrochloric acid solution to obtain a complemented solution, wherein the complementing is performed before feeding said the eluted solution into the strong anion exchanger.4. The process according to claim 3 , wherein the complemented solution includes a molarity in hydrochloric acid between 7 M and 10 M.5. The process according to claim 1 , wherein the accelerated particle beam is a ...

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Номер записи: 75
03-02-2022 дата публикации

GRAFTED POLYSULFONE MEMBRANES

Номер: US20220032282A1
Автор: Gjoka Alketa, Jaber Jad Ali, Ly Saksatha
Принадлежит:

A polysulfone membrane is modified so that monomers are wafted onto the surface of the membrane. The polysulfone membranes can be grafted by contacting the membrane with a grafting solution and exposing the membrane to electromagnetic radiation, typically within the ultraviolet portion of the spectrum. The monomers that are grafted are typically anionic or cationic. The grafted membranes can be used for filtering impurities, such as positively and negatively charged particles, from a liquid. Anionic membranes provide improved filtration of negatively charged impurities, while cationic membranes provide improved filtration of positively charged impurities. 113-. (canceled)14. A method of making a grafted polysulfone membrane , comprising:a) contacting the polysulfone membrane with an alcohol solution comprising benzophenone;b) contacting the polysulfone membrane with an aqueous exchange solution; i) an anionic or cationic monomer;', 'ii) sodium sulfate; and', 'iii) sodium persulfate; and, 'c) contacting the polysulfone membrane with an aqueous grafting solution comprisingd) exposing the polysulfone membrane to electromagnetic radiation, thereby resulting in a grafted polysulfone membrane.15. The method of claim 14 , wherein the anionic monomer is one or more of 2-ethylacrylic acid claim 14 , acrylic acid claim 14 , 2-carboxyethyl acrylate claim 14 , 3-sulfopropyl acrylate potassium salt claim 14 , 2-propyl acrylic acid claim 14 , 2-(trifluoromethyl)acrylic acid claim 14 , methacrylic acid claim 14 , 2-methyl-2-propene-1-sulfonic acid sodium salt claim 14 , mono-2-(methacryloyloxy)ethyl maleate claim 14 , and 3-sulfopropyl methacrylate potassium salt claim 14 , 2-acrylamido-2-methyl-1-propanesulfonic acid claim 14 , 3-methacrylamido phenyl boronic acid claim 14 , vinyl sulfonic acid claim 14 , and vinyl phosphonic acid.16. The method of claim 14 , wherein the anionic monomer is vinylsulfonic acid or vinylsulfonic acid sodium salt.17. The method of claim 14 , wherein ...

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Номер записи: 76
10-01-2019 дата публикации

POLYMERIC ION TRAPS FOR SUPPRESSING OR MINIMIZING TRANSITION METAL IONS AND DENDRITE FORMATION OR GROWTH IN LITHIUM-ION BATTERIES

Номер: US20190013551A1
Автор: Fuller Timothy J., Halalay Ion C., JR. Bob R., Li Zicheng, Powell
Принадлежит:

Electrochemical cells that cycle lithium ions and methods for suppressing or minimizing dendrite formation are provided. The electrochemical cells include a positive electrode, a negative electrode, and a separator disposed therebetween. At least one transition metal ion-trapping moiety, including one or more polymers functionalized with one or more trapping groups, may be included within the electrochemical cell as a coating, pore filler, substitute pendant group, or binder. The one or more trapping groups may be selected from the group consisting of: crown ethers, siderophores, bactins, ortho-phenanthroline, iminodiacetic acid dilithium salt, oxalates malonates, fumarates, succinates, itaconates, phosphonates, and combinations thereof, and may bind to metal ions found within the electrochemical cell to minimize or suppress formation of dendrite protrusions on the negative electrode. 1. An electrochemical cell that cycles lithium ions having improved capacity retention comprising:a positive electrode comprising a positive lithium-based electroactive material and one or more polymeric binder materials;a negative electrode comprising a negative electroactive material;a microporous polymeric separator disposed therebetween; andat least one transition metal ion-trapping moiety comprising one or more polymers functionalized with one or more trapping groups selected from the group consisting of: ortho-phenanthroline, malonates, fumarates, succinates, and combinations thereof, wherein the one or more trapping groups bind to at least one transition metal ion within the electrochemical cell to minimize or suppress formation of dendrite protrusions on the negative electrode.2. The electrochemical cell of claim 1 , wherein the at least one transition metal ion-trapping moiety is included in one or more of the following:a) coated on a surface of the positive electrode;b) coated on a surface of the negative electrode;c) coated on a surface of the separator;d) disposed in pores ...

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Номер записи: 77
18-01-2018 дата публикации

ZEOLITE ADSORBENTS HAVING A HIGH EXTERNAL SURFACE AREA AND USES THEREOF

Номер: US20180015407A1
Автор: Bouvier Ludivine, LUTZ CÉCILE, NICOLAS Serge, Ortiz Guillaume, VITTENET Jullian
Принадлежит: Arkema France

The present invention concerns the use, for gas separation and/or gas drying, of at least one zeolite adsorbent material comprising at least one type A zeolite, said adsorbent having an external surface area greater than 20 m.g, a non-zeolite phase (PNZ) content such that O Подробнее

Номер записи: 78
21-01-2016 дата публикации

METHOD FOR REMOVING METAL IONS IN PHOSPHORIC ACID SOLUTION

Номер: US20160016799A1
Автор: CHANG Wook, HAN Seung-Hyun
Принадлежит:

The present invention relates to a method for removing metal ions in the phosphoric acid solution, and particularly to a method for removing metal ions in the phosphoric acid solution which comprises a step of passing an ion exchange resin through the acid solution to activate the ion exchange resin; a step of filling a resin tower with the activated ion exchange resin and washing it with ultra-pure water, and a step of passing the phosphoric acid solution to the washed ion exchange resin, thereby causing each individual concentration of metal ions with the oxidation number of 2 to 7 in the phosphoric acid solution to be less than 100 ppb.

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Номер записи: 79
21-01-2016 дата публикации

Methods of Reducing Level of One or More Impurities in a Sample During Protein Purification

Номер: US20160016992A1
Автор: Bian Nanying, Chen Jie, Gillespie Christopher, Kozlov Mikhail, Siwak Martin, Stone Matthew T.
Принадлежит:

The present invention provides novel and improved protein purification processes which incorporate certain types of carbonaceous materials and result in effective and selective removal of certain undesirable impurities without adversely effecting the yield of the desired protein product.

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Номер записи: 80
21-01-2016 дата публикации

POLYMER COMPOUND FOR A CONDUCTIVE POLYMER AND METHOD FOR PRODUCING SAME

Номер: US20160017066A1
Автор: Hasegawa Koji, Hatakeyama Jun, Nagasawa Takayuki, OHASHI Masaki, Sagehashi Masayoshi
Принадлежит:

The present invention provides a polymer compound for a conductive polymer, containing one or more repeating units (a) represented by the following general formula (1), the polymer compound for a conductive polymer being synthesized by ion-exchange of a lithium salt, a sodium salt, a potassium salt, or a nitrogen compound salt of a sulfonic acid residue, and having a weight average molecular weight in the range of 1,000 to 500,000.

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Номер записи: 81
15-01-2015 дата публикации

Fc-receptor based affinity chromatography

Номер: US20150018241A1
Автор: Hubert Hertenberger, Petra Rueger, Roberto Falkenstein, Tilman Schlothauer
Принадлежит: Hoffmann La Roche Inc

Herein is reported the use of an immobilized non-covalent complex of a neonatal Fc receptor (FcRn) and beta-2-microglobulin (b2m) as affinity chromatography ligand in general and, for example, for the determination of the in vivo half-live of an antibody by determining the ratio of the retention times of the antibody and a reference antibody.

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Номер записи: 82
15-01-2015 дата публикации

Temperature-responsive polymer particles in protein separation applications

Номер: US20150018440A1
Автор: Brad William Woonton, Kirthi De Silva, Milton Thomas William Hearn, Pankaj Maharjan, William Roy Jackson
Принадлежит: Commonwealth Scientific and Industrial Research Organization CSIRO, MONASH UNIVERSITY

The present invention relates to a method for isolating proteins from a solution containing the proteins. The invention also relates to a method for the chromatographic separation of proteins. The present invention also relates to crosslinked hydroxylic polymer particles functionalized with temperature-responsive copolymer, and to methods of preparing such particles.

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Номер записи: 83
16-01-2020 дата публикации

Reclaiming method

Номер: US20200016529A1
Автор: Akiyori Hagimoto, Atsuhiro Yukumoto, Tsutomu Hamada, Tsuyoshi Oishi
Принадлежит: Mitsubishi Heavy Industries Engineering Ltd

A reclaiming method is disclosed including conducting evaporation by introducing a part of the absorbent to recover CO2 or H2S in a gas in a closed system recovery unit and separating a degraded substance contained in the absorbent from the absorbent to be introduced into an evaporator and obtain recovery steam containing an absorbent and CO2 or H2S by a heating section that is provided on a circulation line that circulates in the evaporator; and removing ionic degraded substance by cooling the concentrate obtained in the evaporation and removing an ionic degraded substance in the concentrate after the cooling, wherein a purified concentrate from which the ionic degraded substance has been removed is reused as a purified absorbent.

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Номер записи: 84
16-01-2020 дата публикации

Alkaline earth metal ion adsorbent, and production method of the same, and alkaline earth metal ion-containing liquid treatment apparatus

Номер: US20200016570A1
Автор: Ayaka ANDO, Hidenori Ishioka, Hiroaki Uchida, Makoto Komatsu, Nobuyuki Hashimoto, Shigeru Nagaoka, Takafumi Tanaka, Takashi Sakuma, Takayasu Tanaka, Takeshi Izumi, Tomoko Yoshimi
Принадлежит: Ebara Corp, Titan Kogyo KK

Provided is a particulate alkaline earth metal ion adsorbent having a large adsorption capacity. The particulate alkaline earth metal ion adsorbent comprising: a potassium hydrogen dititanate hydrate represented by a chemical formula K 2-x H x O.2TiO 2 .nH 2 O, wherein x is 0.5 or more and 1.3 or less, and n is greater than 0; and no binder, wherein the particulate alkaline earth metal ion adsorbent has a particle size range of 150 μm or more and 1000 μm or less.

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Номер записи: 85
21-01-2021 дата публикации

FUNCTIONALIZED POLYOLEFIN CAPILLARIES FOR OPEN TUBULAR ION CHROMATOGRAPHY

Номер: US20210016266A1
Автор: DASGUPTA Purnendu K., HUANG Weixiong, Pohl Christopher A.
Принадлежит:

Open tubular capillary columns for liquid and ion chromatography, based upon an ionically impermeable polyolefin capillary having a bore with a sulfonate-group- or amine-group-functionalized internal surface. The capillary columns may include a coating of ion exchanging nanoparticles electrostatically bound to the functionalized internal surface. The capillary columns may be made by exposing the interior surface to a sulfonating reagent comprising chlorosulfonic acid (CISOH), preferably from 85 wt % to 95 wt % chlorosulfonic acid at a process temperature of 20 to 25° C. The interior surface may be subsequently exposed to an asymmetrical diamine to form a sulfonic mid-linkage to the diamine, i.e., to form a sulfonamide-linked, amine-group-functionalized internal surface. The coating may be provided by subsequently exposing the interior surface to an aqueous suspension of ion exchanging nanoparticles to electrostatically bond the ion exchanging nanoparticles to the functionalized internal surface. 1. An open tubular capillary column for liquid and ion chromatography , the column comprising:an ionically impermeable capillary of a polyolefin material;{'sub': '3', 'the capillary having a bore with an internal surface that has been exposed to a sulfonating reagent comprising chlorosulfonic acid (ClSOH) to sulfonate the polyolefin material to a sulfonated polyolefin material, wherein, after exposure to the sulfonating reagent, the internal surface has been exposed to an asymmetrical diamine aminating agent to form a sulfonamide-linked, amine-group-functionalized internal surface.'}2. The open tubular capillary column of claim 1 , wherein the aminating reagent comprised N—N-dimethylethylenediamine.3. The open tubular capillary column of claim 1 , wherein claim 1 , after exposure to the aminating agent claim 1 , the internal surface has been exposed to a methylating agent to form a sulfonamide-linked claim 1 , quaternary-amine-group-functionalized internal surface.4. The ...

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Номер записи: 86
22-01-2015 дата публикации

ORGANIC/INORGANIC NANOCOMPOSITE CAPABLE OF ADSORPTION/DESORPTION OF METAL IONS, AND PREPARATION METHOD THEREOF

Номер: US20150021511A1
Автор: CHEONG In Woo, KIM Jung Hyun, Kim Yong Seok
Принадлежит: Industry-Academic Cooperation Foundation, Yonsei University

The present invention relates to an organic-inorganic nanocomposite comprising a polymer having temperature dependent volume phase transition characteristics, and magnetic particles embedded in the polymer, and a preparation method thereof. The present invention induces more rapid adsorption and desorption of metal ions and can effectively recover the used organic-inorganic nanocomposite. 1. An organic-inorganic nanocomposite comprising:a polymer having temperature dependent volume phase transition characteristics; andmagnetic particles embedded in the polymer.2. The organic-inorganic nanocomposite of claim 1 , wherein he polymer is one or more selected from the group consisting of an amide-based polymer and an acrylic-based polymer.3. The organic-inorganic nanocomposite of claim 1 , wherein the polymer is one or more selected from the group consisting of N-isopropylacrylamide claim 1 , N-isopropylmethacrylamide claim 1 , N-n-propylacrylamide claim 1 , N-tertbutylacrylamide claim 1 , dimethylaminopropyl methacrylamide claim 1 , N claim 1 ,N-dimethylacetamide claim 1 , dimethylacetamide claim 1 , ethanamide claim 1 , acetamide claim 1 , phosphonamide claim 1 , sulfonamide claim 1 , N claim 1 ,N-dimethylformamide claim 1 , and derivatives thereof.4. The organic-inorganic nanocomposite of claim 1 , wherein the polymer having temperature dependent volume phase transition characteristics further comprises a selective adsorption functional group for metal ions claim 1 , wherein the selective adsorption functional group is copolymerized with the polymer.5. The organic-inorganic nanocomposite of claim 4 , wherein the selective adsorption functional group for metal ions is one or more selected from the group consisting of 15-crown-5-ether claim 4 , 18-crown-6-ether claim 4 , 12-crown-4-ether claim 4 , 24-crown-8-ether claim 4 , and derivatives thereof.6. The organic-inorganic nanocomposite of claim 1 , wherein the magnetic particle is a metal claim 1 , a magnetic material ...

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Номер записи: 87
26-01-2017 дата публикации

POTASSIUM-BINDING AGENTS FOR TREATING HYPERTENSION AND HYPERKALEMIA

Номер: US20170020916A1
Автор: Berman Lance, Klaerner Gerrit
Принадлежит:

The present invention generally relates to methods of treating hypertension (HTN) in patients in need thereof wherein the patient optionally further suffers from chronic kidney disease (CKD) or Type II diabetes mellitus (T2DM). The invention also relates to methods of treating hyperkalemia in a patient in need thereof, wherein the patient suffers from CKD, T2DM or HTN and are optionally being treated with an effective amount of a renin-angiotensin-aldosterone system (RAAS) agent. The invention also relates to methods of treating kidney disease in a patient in need thereof, wherein the patient is optionally being treated with an effective amount of a renin-angiotensin-aldosterone system (RAAS) agent. The methods can comprise administering an effective amount of a potassium-binding agent to the patient to lower the patient's blood pressure and/or increase or stabilize the patient's kidney function. 1137.-. (canceled)138. A method of treating hyperkalemia in a chronic kidney disease patient in need thereof optionally being treated with an effective amount of a renin-angiotensin-aldosterone system (RAAS) agent , the method comprising:administering an effective amount of a potassium-binding agent to the patient;{'sup': '2', 'wherein the patient had a serum potassium level of greater than or equal to 5.5 mEq/L and an estimated glomerular filtration rate (eGFR) of from 15 to 44 mL/min/1.73 mbefore treatment with the potassium-binding agent and wherein the potassium-binding agent is administered to the patient daily for more than 8 weeks;'}wherein when the potassium-binding agent is a polymer, the polymer comprises a crosslinked cation exchange polymer other than a polystyrene cation exchange polymer.139. The method of claim 138 , further comprising observing an increase or stabilization of estimated glomerular filtration rate (eGFR) as compared to the patient's eGFR before treatment with the potassium-binding agent.140. The method of claim 138 , further comprising ...

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Номер записи: 88
28-01-2016 дата публикации

DEVELOPMENT OF A HIGH-EFFICIENCY ADSORBENT FROM E-WASTE AND ALUMINOSILICATE-BASED MATERIALS FOR THE REMOVAL OF TOXIC HEAVY METAL IONS FROM WASTEWATER

Номер: US20160023202A1
Автор: Hadi Myavagh Pejman, McKay Gordon
Принадлежит: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

An impregnated and activated ion exchange material prepared by a process is provided that includes: impregnating an ion exchange precursor material, wherein impregnation of the ion exchange precursor material includes reacting the ion exchange precursor material with an impregnator solution, thereby increasing the surface area and the hydrophilicity of the ion exchange precursor material; activating the impregnated ion exchange precursor material to increase the porosity of the impregnated ion exchange precursor material, wherein the ion exchange precursor material comprises at least one of nonmetallic printed (NMP) circuit board, amorphous aluminosilicate, or mixtures thereof. In other aspects, a method for fabricating an ion exchanger and a method for removing heavy metal ions from a solution are provided. 1. A method for fabricating an ion exchanger , the method comprising: 'reacting the ion exchange precursor material with an impregnator solution, thereby increasing the surface area and the hydrophilicity of the ion exchange precursor material;', 'impregnating an ion exchange precursor material, wherein impregnating the ion exchange precursor material comprisesactivating the impregnated ion exchange precursor material to increase the porosity of the impregnated ion exchange precursor material.2. The method according to claim 1 , wherein the method for fabricating an ion exchanger further comprises washing and drying the impregnated and activated ion exchange precursor material.3. The method according to claim 1 , wherein during the impregnating of the ion exchange precursor material claim 1 , a portion of the bonds in the ion exchange precursor material is broken up into hydroxyl moieties.4. The method according to claim 1 , wherein during the impregnating of the ion exchange precursor material claim 1 , a first plurality of alkali metal ions present in the impregnator solution is exchanged with hydrogen atoms at the surface of the ion exchange precursor ...

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Номер записи: 89
28-01-2016 дата публикации

Purification Platform for Bispecific Antibodies

Номер: US20160024147A1
Автор: Andrew TUSTIAN, Benjamin Adams, Christine ENDICOTT, Hanne BAK, John MATTILA
Принадлежит: Regeneron Pharmaceuticals Inc

High resolution protein A chromatography employing a chaotropic agent and pH gradient or pH step elution buffer results in improved peak resolution between closely related molecular species. Bispecific antibodies containing a protein A-binding-ablating substitution CH3 domain paired with a protein A-binding CH3 domain are separated with high peak resolution from monospecific antibodies containing a protein A-binding-ablating substituted CH3 domain paired with the protein A-binding-ablating substituted CH3 domain and monospecific antibodies containing a protein A-binding CH3 domain paired with the protein A-binding CH3 domain. Useful chaotropic agents include magnesium chloride and calcium chloride.

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Номер записи: 90
26-01-2017 дата публикации

CRYSTALLINE MOLECULAR SIEVES AND SYNTHESIS THEREOF

Номер: US20170022066A1
Автор: Zones Stacey Ian
Принадлежит:

Crystalline molecular sieves and their synthesis using quaternary N-methyl-diisoalkylammonium cations as organic structure directing agents are disclosed. The structure directing agent has the following structure (1): 2. The method of claim 1 , wherein crystallization of the molecular sieve is conducted in the presence of an oxide of silicon; fluoride ions; water; and at least one structure directing agent selected from N claim 1 ,N-dimethyl-diisopropylammonium cations claim 1 , N-ethyl-N-methyl-diisopropylammonium cations claim 1 , N-hydroxymethyl-N-methyl-diisopropylammonium cations claim 1 , and N claim 1 ,N-dimethyl-di-sec-butylammonium cations.3. The method of claim 2 , wherein the molecular sieve has a *BEA framework type claim 2 , a NON framework type claim 2 , or a STF framework type.4. The method of claim 1 , wherein crystallization of the molecular sieve is conducted in the presence of oxides of silicon and germanium; fluoride ions; water; and at least one structure directing agent selected from N-ethyl-N-methyl-diisopropylammonium cations and N claim 1 ,N-dimethyl-di-sec-butylammonium cations.5. The method of claim 4 , wherein the molecular sieve has a BEC framework type.6. The method of claim 1 , wherein crystallization of the molecular sieve is conducted in the presence of oxides of silicon and boron; fluoride ions; water; and at least one structure directing agent selected from N claim 1 ,N-dimethyl-diisopropylammonium cations claim 1 , N-ethyl-N-methyl-diisopropylammonium cations and N claim 1 ,N-dimethyl-di-sec-butylammonium cations.7. The method of claim 6 , wherein the molecular sieve has a DDR framework type claim 6 , an EUO framework type claim 6 , or a framework type of SSZ-36.8. The method of claim 1 , wherein crystallization of the molecular sieve is conducted in the presence of oxides of silicon and aluminum; fluoride ions; water; and at least one structure directing agent selected from N claim 1 ,N-dimethyl-diisopropylammonium cations claim ...

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Номер записи: 91
26-01-2017 дата публикации

FUNCTIONALIZED TRIPTYCENE POLYMERS AND THEIR USES

Номер: US20170022323A1
Автор: Goods John B., Moh Chuanhui L., Swager Timothy M.
Принадлежит: Massachusetts Institute of Technology

Embodiments described herein relate to compositions including iptycene-based structures. Some embodiments provide compositions including polymers having a backbone comprising an iptycene-based compound. Some embodiments described herein provide compositions having enhanced properties such as enhanced porosity, increased glass transition temperatures, and/or improved solubility as compared to traditional poly(aryl ether)-based compounds or traditional iptycene-based compounds. In some cases, the compositions may include various aryl ether compounds such as an aryl ether ketone incorporated into the polymer backbone. Non-limiting examples of suitable aryl ether compounds include polyaylethersulfones, polyaryletherketones, polyetherimides, and polyphenylene ethers. The compositions described herein may be useful in a wide variety of applications, including structural materials, flexible composites, ion conductors, fuel cell membranes such as proton exchanging membranes, sensors, preconcentrators, absorbents, or the like. 1. A composition , comprising:a polymer having a backbone, the backbone comprising an iptycene-based compound and an aryl ether-based compound.2. A composition as in claim 1 , comprising:the first polymer having a backbone, the backbone comprising an iptycene-based compound and an aryl ether compound; anda second polymer different than the first polymer.3. A composition as in claim 2 , wherein the second polymer is selected from the group consisting of poly(THF) claim 2 , polyamide claim 2 , polyurethane claim 2 , poly(ethylene glycol) claim 2 , and poly(dimethylsiloxane).4. A composition as in claim 2 , wherein the second polymer has a glass transition temperature less than 25° C.7. A composition as in claim 5 , wherein the nitrogen containing compound is selected from the group consisting of NO claim 5 , NH claim 5 , and diazonium claim 5 ,8. A composition as in claim 5 , wherein the sulfur containing compound is SOH.9. A composition as in claim 5 , ...

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Номер записи: 92
24-01-2019 дата публикации

FLUID PURIFICATION BY FORWARD OSMOSIS, ION EXCHANGE AND RE-CONCENTRATION

Номер: US20190022591A1
Автор: GRIESSLER Thomas
Принадлежит:

An apparatus () for purifying fluid, wherein the apparatus () comprises an osmosis unit () configured for pre-purifying the fluid to be purified by forward osmosis of the fluid, which is to be purified, through an osmosis membrane () into a chamber () comprising dissolved first ions, in particular first cations and first anions, an ion exchange unit () configured for exchanging at least part of the first ions, in particular at least part of at least one of the first cations and the first anions, by second ions, in particular at least one of second cations and second anions, and a re-concentration unit () configured for separating the pre-purified fluid after the ion exchange into purified fluid and into a re-concentrate enriched with the respective ions, in particular anions and cations. 1. An apparatus for purifying fluid , the apparatus comprising:an osmosis unit configured for pre-purifying the fluid to be purified by forward osmosis of the fluid to be purified through an osmosis membrane into a chamber comprising dissolved first ions, in particular first cations and first anions;an ion exchange unit configured for exchanging at least part of the first ions, in particular at least part of at least one of the first cations and the first anions, by second ions, in particular at least one of second cations and second anions;a re-concentration unit configured for separating the pre-purified fluid after the ion exchange into purified fluid and into a re-concentrate enriched with the respective ions, in particular anions and cations.2. The apparatus according to claim 1 , wherein the osmosis unit is configured for promoting a flow of the fluid to be purified through the osmosis membrane while inhibiting a flow of contaminants from the fluid to be purified towards the chamber and while inhibiting the first ions claim 1 , in particular the first cations and the first anions claim 1 , from flowing through the osmosis membrane towards the fluid to be purified.3. The ...

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Номер записи: 93
22-01-2015 дата публикации

MEMBRANE SEPARATION OF OLEFIN AND PARAFFIN MIXTURES

Номер: US20150025293A1
Автор: Feiring Andrew Edward, Lazzeri Jonathan, Majumdar Sudipto
Принадлежит: CMS TECHNOLOGIES HOLDINGS, INC.

A metal exchanged fluorinated ionomer is a copolymer minimally including repeating units of (i) a polymerized derivative of a perfluorinated cyclic or cyclizable monomer and (ii) a strong acid highly fluorinated vinylether compound in which the acid moiety is exchanged with a cation of a Group 11 metal. Metal exchanged fluorinated ionomers are readily soluble and can be formed into thin, selectively gas permeable membranes by solution deposition methods. These membranes are suitable for separating olefins from gas olefin/paraffin mixtures. Good selectivity and transmembrane flux can be obtained without humidifying the membrane feed gas mixture. 2. The membrane of in which the perfluorinated cyclic or cyclizable compound is selected from the group consisting of perfluoro-2 claim 1 ,2-dimethyl-1 claim 1 ,3-dioxole (PDD) claim 1 , perfluoro-2-methylene-4-methyl-1 claim 1 ,3-dioxolane (PMD) claim 1 , perfluoro (alkenyl vinylether) (“PFVE”) claim 1 , and 2 claim 1 ,2 claim 1 ,4-trifluoro-5-trifluoromethoxy-1 claim 1 ,3-dioxole (TFMD).3. The membrane of in which the repeating units B are a polymerized derivative of a highly fluorinated vinylether compound selected from the group consisting of vinylethers containing sulfonyl fluoride claim 1 , vinylethers containing sulfonamide claim 1 , vinylether carboxylates claim 1 , and a blend thereof.4. The membrane of in which the highly fluorinated vinylether compound is selected from the group consisting of CF═CFOCFCF(CF)OCFCFSOF (“SEFVE”) claim 3 , CF═CFOCFCFSOF claim 3 , CF═CFOCFCFCFCFSOF claim 3 , CF═CFOCFCF(CF)OCFCFCOCH claim 3 , and a blend thereof.5. The membrane in in which the metal exchanged fluorinated ionomer further comprises repeating units that are polymerized derivatives of fluorinated monomers selected from the group consisting of chlorotrifluoroethylene (CTFE) claim 1 , trifluoroethylene (TrFE) claim 1 , and vinylidene fluoride (VF).7. The method of in which the liquid solvent system consists essentially of ...

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Номер записи: 94
10-02-2022 дата публикации

METHOD FOR PREPARING NEEDLE COKE FOR ULTRA-HIGH POWER (UHP) ELECTRODES FROM HEAVY OIL

Номер: US20220041934A1
Автор: Du Hui, GONG Xin, LI JUN, Li Zhihao, Liu Dong, LOU BIN
Принадлежит: CHINA UNIVERSITY OF PETROLEUM

A method for preparing needle coke for ultra-high power (UHP) electrodes from heavy oil is provided. In this method, heavy oil is used as a raw material. The size exclusion chromatography (SEC) is conducted with polystyrene (PS) as a packing material to separate out specific components with a relative molecular weight of 400 to 1,000. The ion-exchange chromatography (IEC) is conducted to remove acidic and alkaline components to obtain a neutral raw material. The neutral raw material is subjected to two-stage consecutive carbonization to obtain green coke, and the green coke is subjected to high-temperature calcination to obtain the needle coke for UHP electrodes. The needle coke has a true density of more than 2.13 g/cmand a coefficient of thermal expansion (CTE) of ≤1.15×10/° C. at 25° C. to 600° C. 1. A method for preparing needle coke for ultra-high power (UHP) electrodes from heavy oil , comprising the following steps:(1) selecting heavy oil as a raw material;(2) subjecting the raw material to size exclusion chromatography (SEC) to separate out components with a relative molecular weight of 400 to 1,000;(3) removing acidic and alkaline components by ion-exchange chromatography (IEC) to obtain a neutral raw material;(4) subjecting the neutral raw material to first-stage carbonization for 1 h to 6 h at a pressure of 2 MPa to 8 MPa and a temperature of 400° C. to 450° C.;(5) after the first-stage carbonization is completed, heating a reactor to 460° C. to 520° C., conducting second-stage carbonization for 6 h to 12 h at a pressure of 0 MPa to 2 MPa to obtain a green coke product, and subjecting the green coke product to high-temperature calcination to obtain the needle coke for the UHP electrodes;wherein a packing material used for the SEC is an organogel, and the organogel is one from the group consisting of polystyrene (PS), polyvinyl acetate (PVA), cross-linked dextran, and cross-linked polyacrylamide (CL-PAM); an eluate used for the SEC is one from the group ...

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Номер записи: 95
24-01-2019 дата публикации

METHOD FOR PURIFYING PROTEIN

Номер: US20190023736A1
Автор: Taniguchi Hiroki, Yokoyama Yoshiro
Принадлежит: ASAHI KASEI MEDICAL CO., LTD.

The present invention provides a method for purifying a protein, comprising: providing a solution containing a monomer and aggregates of the protein of interest; a purification step of removing the aggregates of the protein of interest using a cation-exchange chromatographic support media to obtain a purified solution of the monomer, the cation-exchange chromatographic support media comprising at least one type of weak cation-exchange group and having a cation-exchange group density higher than 30 mmol/L; and a virus removal step of removing viruses from the purified solution using a virus removal membrane having a virus logarithmic reduction value of 3 or more. 1. A method for purifying a protein , comprising:providing a solution containing a monomer and aggregates of the protein of interest;removing the aggregates of the protein of interest using a cation-exchange chromatographic support media to obtain a purified solution of the monomer, the cation-exchange chromatographic support media comprising at least one type of weak cation-exchange group and having a cation-exchange group density higher than 30 mmol/L; andremoving viruses from the purified solution using a virus removal membrane having a virus logarithmic reduction value of 3 or more.2. The method for purifying a protein according to claim 1 , wherein the cation-exchange chromatographic support media comprises a membrane matrix and a copolymer immobilized on the surface of the membrane matrix claim 1 , and the copolymer comprises a (meth)acrylamide-based compound and/or a (meth)acrylate-based compound as monomer units.3. The method for purifying a protein according to claim 2 , wherein monomer units other than monomer units having cation-exchange groups in the copolymer are neutral monomers having no charge claim 2 , and the neutral monomers are a hydrophobic monomer unit and/or a hydrophilic monomer unit.4. The method for purifying a protein according to claim 3 , wherein the hydrophobic monomer unit has ...

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Номер записи: 96
23-01-2020 дата публикации

Ligands for Removal of Liquid Phase Cations and Methods for Same

Номер: US20200023347A1
Автор: Frattini Paul L., Yengoyan Leon
Принадлежит:

The invention provides chemical compounds for binding to a liquid phase cation having the formula R—SO—S—R—SH, wherein Rcomprises a support molecule, such as a polymer, and Rcomprises an alkyl. The polymer may be a crosslinked, polystyrene divinylbenzene copolymer having a plurality of pendant benzyl groups to which the —SO—S—R—SH ligand is attached. The alkyl group may be ethyl or propyl. The chemical compound may be used to complex cation lead or mercury, in which the cation is complexed with mercapto-sulfur of the thio-sulfonyl moiety and the terminal mercaptan to form a heterocyclic ring-like geometry incorporating the cation. A method for removing cations from a liquid stream using the chemical compounds of the present invention is also provided. 1. A chemical compound for binding to a liquid phase cation , comprising:{'sub': 1', '2', '2', '1', '2, 'a chemical compound having the formula R—SO—S—R—SH, wherein Rcomprises a support molecule and Rcomprises an alkyl.'}2. The chemical compound of claim 1 , wherein said support molecule comprises a polymer and said alkyl comprises ethyl.3. The chemical compound of claim 2 , wherein said polymer comprises a crosslinked claim 2 , polystyrene divinylbenzene copolymer having a plurality of pendant benzyl groups to which the —SO—S—R—SH is attached.4. The chemical compound of claim 1 , wherein said support molecule comprises a polymer and said alkyl comprises propyl.5. The chemical compound of claim 4 , wherein said polymer comprises a crosslinked claim 4 , polystyrene divinylbenzene copolymer having a plurality of pendant benzyl groups to which the —SO—S—R—SH is attached.6. A chemical compound bound to a liquid phase cation claim 4 , comprising:{'sub': 1', '2', '2', '1', '2, 'a chemical compound having the formula RSO—S—R—SH, wherein Rcomprises a support molecule and Rcomprises an alkyl; and'}a cation complexed with said chemical compound.7. The chemical compound of claim 6 , wherein said cation is complexed with at least ...

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Номер записи: 97
24-01-2019 дата публикации

METHODS OF PREPARING AND PURIFYING POLYALKYLENE GLYCOL DERIVATIVE

Номер: US20190023841A1
Автор: Harada Yuji, NONAKA Shiori, SUKA Yuki
Принадлежит: SHIN-ETSU CHEMICAL CO., LTD.

A polyalkylene glycol derivative with a minimal impurity content is prepared simply by the steps of reacting a compound having formula (III-I) or (III-II) with an electrophile having formula (IV) in the presence of an optional basic compound, to form a reaction solution containing a compound having formula (V), and passing the reaction solution through a column of cation and anion exchange resins to remove water-soluble impurities, for thereby purifying the desired polyalkylene glycol derivative. 5. The method of wherein Rand/or Ris an amino group having a protective group of the formula (IV-I) claim 1 , a hydroxy group having a protective group of the formula (IV-II) claim 1 , or an acetal group of the formula (IV-III) claim 1 , the protecting group being deprotected under acidic conditions.6. The method of wherein Rand/or Ris a group having the formula (IV-I).8. The method of claim 1 , further comprising claim 1 , between steps (3) or (3′) and (4) claim 1 , the step of reacting the polyalkylene glycol derivative having a protective group with an acid in water or an alcohol solvent for deprotection.9. The method of wherein in step (4) claim 1 , the cation exchange resin and the anion exchange resin are used to deprotect the polyalkylene glycol derivative having formula (V) and simultaneously remove water-soluble impurities claim 1 , for thereby purifying the desired polyalkylene glycol derivative.10. The method of wherein the cation exchange resin is a styrenic H type strong acid cation exchange resin claim 1 , and the anion exchange resin is a styrenic OH type strong base anion exchange resin.11. The method of wherein the cation exchange resin is a styrenic H type strong acid cation exchange resin of gellular type or porous type having a degree of crosslinking of at least 10.12. A method for purifying a mixture containing a polyalkylene glycol derivative and water-soluble impurities claim 1 , comprising the step of letting a cation exchange resin and an anion ...

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Номер записи: 98
23-01-2020 дата публикации

WASTEWATER FILTRATION METHOD AND SYSTEM

Номер: US20200024163A1
Автор: Jasti Shravya
Принадлежит:

The invention is a method of and system for removing bacteria and other contaminants in water by utilizing bentonite clay impregnated with metal ion, such as silver or copper ion. The method and system may alternatively or additionally include a cation exchange resin impregnated with metal ion, such as silver or copper ion. 1. A system for removing contaminants in water comprising substrates of bentonite clay impregnated with metal ion.2. The system of wherein the bentonite is impregnated with silver.3. The system of wherein the bentonite is impregnated with copper.4. The system of wherein the bentonite is impregnated with silver and copper.5. The system of comprising a cation exchange resin impregnated with metal ion.6. The system of comprising a cation exchange resin impregnated with metal ion.7. The system of comprising a cation exchange resin impregnated with metal ion.8. The system of comprising a cation exchange resin impregnated with metal ion.9. The system of wherein the resin is impregnated with silver.10. The system of wherein the resin is impregnated with silver.11. The system of wherein the resin is impregnated with silver.12. The system of wherein the resin is impregnated with silver.13. The system of wherein the resin is impregnated with copper.14. The system of wherein the resin is impregnated with copper.15. The system of wherein the resin is impregnated with copper.16. The system of wherein the resin is impregnated with copper.17. The system of wherein the resin is impregnated with silver and copper.18. The system of wherein the resin is impregnated with silver and copper.19. The system of wherein the resin is impregnated with silver and copper.20. The system of wherein the resin is impregnated with silver and copper. This application claims priority to and the benefit of U.S. Provisional Application No. 62/702,333 filed Jul. 23, 2018, which is hereby incorporated by reference in its entirety.None.The present invention relates to a wastewater ...

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Номер записи: 99
28-01-2021 дата публикации

POLYMER NANOCOMPOSITE BASED COMPOSITION AND METHOD FOR CONTROLLING WATER HARDNESS

Номер: US20210024379A1
Автор: Mirhoseini Farid, Salabat Alireza
Принадлежит:

A nanocomposite composition for controlling water hardness and a method of producing the nanocomposite, is disclosed. The nanocomposite composition comprises a plurality of semi-interpenetrating polymer network/zeolite-silver nanocomposite, including a polymer matrix. The polymer matrix is dispersed with a plurality of zeolite nanoparticles and a plurality of silver nanoparticles. The method of producing semi-interpenetrating polymer networks/zeolite-silver nanocomposite as hydrogel form comprises microemulsion polymerization of monomeric mixture uses methyl methacrylate (MMA) in presence of ethylene glycol dimethacrylate (EGDM) cross-linker for MMA monomer, acrylamide (AAm), acrylic acid (AAc) and linear poly vinyl alcohol (PVA) monomers in the presence of N,N′-methylene bisacrylamide (MBA) cross-linker and TX-100 surfactant. Further, the prepared nanocomposite is a water hardness removal filter and an efficient inhibition of sulfate-reducing bacteria nanocomposite. Also, the water filter cartridge exhibits a stable filtration performance during large scale production with reduced fluctuation infiltration flow rate and shows highly stable behaviors in high salt concentration. 1. A composition for controlling water hardness , comprising:a plurality of semi-interpenetrating polymer nanocomposite, including a polymer matrix dispersed with a plurality of zeolite nanoparticles and a plurality of silver (Ag) nanoparticles.2. The composition of claim 1 , wherein the silver nanoparticles with homogeneous particle size distribution is dispersed in the zeolite nanoparticles with a mono-dispersed particle size distribution.3. The composition of claim 1 , wherein the nanocomposite is polymerized using methyl methacrylate (MMA) in presence of ethylene glycol dimethacrylate (EGDM) cross-linker for MMA monomer claim 1 , acrylamide (AAm) claim 1 , acrylic acid (AAc) and linear poly vinyl alcohol (PVA) monomers in the presence of N claim 1 ,N′-methylene bisacrylamide (MBA) cross- ...

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Номер записи: 100