АДСОРБИРУЮЩИЙ МАТЕРИАЛ, СОСТОЯЩИЙ ИЗ ПОРИСТОГО ФУНКЦИОНАЛЬНОГО ТВЕРДОГО ВЕЩЕСТВА, ВВЕДЕННОГО В ПОЛИМЕРНУЮ МАТРИЦУ

Настоящее изобретение относится к адсорбирующему материалу, который содержит, по меньшей мере, одно пористое функциональное твердое вещество, например цеолит, введенное в полимерную матрицу. Адсорбирующий материал содержит пористое функциональное твердое вещество в количестве 45-80 мас.%. Полимерная матрица содержит, по меньшей мере, один органический полимер, в частности, выбранный из термопластов, и имеет объем вторичных пор в дополнение к объему первичных пор пористого функционального твердого вещества. Кроме того, настоящее изобретение относится к формованному изделию, которое содержит или состоит из вышеуказанного адсорбирующего материала, к способу его получения и к его применению. Изобретение обеспечивает получение материала с хорошей кинетикой сорбции, высокой прочностью и возможностью его регенерации. 11 н. и 32 з.п. ф-лы, 1 табл., 6 ил.

МЕТОД АФФИННОЙ ХРОМАТОГРАФИИ АНТИТРОМБИНА III

Изобретение относится к области хроматографии. Предложена колонка для аффинной хроматографии, содержащая белок антитромбин III (ATIII), связанный со смолой, в соотношении менее 2 мг белка на 1 мл гидратированной смолы, при этом белок ATIII предварительно активирован при помощи инкубации с немодифицированным низкомолекулярным гепарином (ГНММ) с высоким содержанием активных видов. Изобретение обеспечивает повышенную селективность хроматографической колонки. 2 н. и 5 з.п. ф-лы, 2 ил.

Состав и способ получения композиционного гранулированного сорбента на основе алюмосиликатов кальция и магния

Группа изобретений относится к составу и способу получения композиционного гранулированного сорбента и может быть использована в технологии очистки природных вод для хозяйственно-питьевого водоснабжения, очистки слабозагрязненных сточных вод в фильтровальных сооружениях и промышленных стоков от катионов тяжелых металлов и радионуклидов. Представлен способ получения композиционного гранулированного сорбента на основе алюмосиликатов кальция и магния, включающий приготовление смеси компонентов, гранулирование смеси и ее термообработку, характеризующийся тем, что в качестве компонентов применяют глинистые минералы: каолинит или монтмориллонит или гидрослюды и минеральные добавки: доломит и трепел, взятые в соотношении, масс.%: 90:5:5; гранулирование и термообработку осуществляют в режиме твердофазного синтеза при температуре 950-1000°С, при этом в гранулах формируют единый алюмокремнекислородный каркас с ионообменными центрами, структурно связанными с остаточными группами СО32-. В другом воплощении ...

ВЫСОКОЭФФЕКТИВНЫЕ АДСОРБЕНТЫ НА ОСНОВЕ АКТИВИРОВАННОГО УГЛЯ С ВЫСОКОЙ ПОРИСТОСТЬЮ, ПРЕДСТАВЛЕННОЙ МЕЗО- И МАКРОПОРАМИ

Изобретение относится к высокоэффективным адсорбентам на основе активированного угля с высокой пористостью, представленной мезо- и макропорами, имеющим форму отдельных зерен активированного угля, где по меньшей мере, 55% общего объема пор высокоэффективных адсорбентов составляют поры (то есть, мезо- и макропоры) диаметром более 20 Å, при этом адсорбенты характеризуются мерой центра распределения диаметра пор более 25 Å, обладают удельной поверхностью, измеренной методом БЭТ, по меньшей мере, 1250 м2/г, йодным числом 1250-2100 мг/г, и получены из гранул сульфонированных поперечносшитых дивинилбезолом полистиролов путем карбонизации и двухстадийной активации. Изобретение позволяет получить адсорбенты, которые помимо указанных выше свойств имеют стойкость к абразивному износу и разрушению и пригодны для применения во множестве различных областей. 4 н. и 3 з.п. ф-лы, 2 ил., 1 табл.

Способ получения магнитного композиционного сорбента

Изобретение относится к способам получения наноструктурированных магнитных алюмосиликатных композитов для сорбции радионуклидов цезия и стронция из водных сред. Предложен способ получения магнитного композиционного сорбента, включающий синтез наночастиц магнетита путем совместного осаждения хлоридов железа (II) в водном растворе и их последующую обработку, отличается тем, что для получения наночастиц магнетита при постоянном перемешивании и поддержании температуры раствора 75-85°C в 120 мл смеси, содержащей воду и этиленгликоль в равном объемном соотношении, последовательно вносят порошки 12 ммоль FeCl3⋅6H2O и 8.3 ммоль Fe(NH4)2(SO4)2⋅6H2O и 35 мл 24%-ного водного раствора аммиака, через 20 минут добавляют 17.2 мл 2 M водного раствора Na2SiO3⋅5H2O и 52.8 мл 0.325 M водного раствора NaAlO2 и выдерживают в течение 30 минут, далее полученный раствор с наночастицами магнетита помещают в автоклав и выдерживают при температуре 90-180°C и давлении 70.12-1001.9 кПа в течение 6 часов, отделяют полученный ...

ГИБКИЕ АДСОРБИРУЮЩИЕ ИЗДЕЛИЯ

Изобретение относится к водопоглощающим адсорбирующим материалам. Предложено гибкое адсорбирующее изделие, содержащее термопластичную полимерную матрицу и пористый адсорбирующий материал, причем изделие обладает при 23°С модулем упругости при изгибе более чем примерно 10 МПа. Упомянутое изделие используется в устройствах для кондиционирования или очистки газов и жидкостей. Предложены также способы изготовления материала и устройства, содержащего этот материал. Изобретение обеспечивает получение изделия заданной формы, наполненного большим количеством пористого твердого функционального материала. 5 н. и 48 з.п. ф-лы, 5 ил.

Аппарат для разделения эмульсий

Предложенное решение относится к области разделения эмульсий фильтрацией, в частности к области очистки жидкостей от маслонефтепродуктов и органических веществ. Может быть использовано в нефтедобывающей, химической, нефтехимической, пищевой, фармацевтической, машиностроительной и других отраслях промышленности, а также в системах очистки сточных вод.Аппарат для разделения эмульсий содержит корпус, в котором размещена фильтрующая загрузка. В качестве фильтрующей загрузки используются гранулы, сформированные из измельченных частиц диатомита и обожженные при температуре 700-1000°С, что обеспечивает спекание частиц диатомита между собой при сохранении имеющихся между частицами пор.При очистке воды от нефти фильтровальную засыпку предварительно заливают чистой водой, которая заполняет поры гранул, создав в местах выхода пор на поверхность гранулы зоны несмачиваемые для нефти (дисперсной фазы). Только после этого приступают к фильтрации водонефтяной эмульсии через слой диатомитовых гранул.Поскольку ...

Способ получения адсорбента из листьев пальмы для очистки вод

Изобретение относится к способу получения адсорбента из листьев пальмы, который может быть использован для очистки поверхностных, подземных и/или сточных вод. Представлен способ получения адсорбента из листьев пальмы для очистки вод, включающий промывку листьев водопроводной водой, высушивание, разрезание и ввод их в обрабатываемую жидкость, характеризующийся тем, что высушивание осуществляют при комнатной температуре в течение суток, разрезание листьев производят на фракции до 6 мм, а ввод измельченных листьев в обрабатываемую воду производят при перемешивании в течение от 1 минуты дозами 0,1- 0,4 г/0,05 дм3. Изобретение обеспечивает снижение энергопотребления, времени обработки и отсутствие необходимости использования химических реагентов на очистку вод. 9 табл.

СПОСОБ ДЕКАРБОНИЗАЦИИ ГАЗОВЫХ ПОТОКОВ

Настоящее изобретение относится к способу декарбонизации газового потока, причем указанный способ включает, по меньшей мере, следующие стадии: a) подача газового потока, содержащего от 15 до 60% диоксида углерода по объему относительно общего объема газового потока, b) пропускание указанного газового потока через цеолитный агломерат и c) извлечение газового потока, обедненного CO2, способ, в котором цеолитный агломерат содержит по меньшей мере одно глинистое связующее и по меньшей мере один цеолит типа FAU и имеет объем мезопор от 0,02 до 0,15 см3/г и объемную долю мезопор от 0,1 до 0,5. Изобретение также относится к применению цеолитного агломерата для декарбонизации газового потока, содержащего от 15 до 60% диоксида углерода по объему относительно общего объема газового потока, при этом цеолитный агломерат содержит по меньшей мере одно глинистое связующее и по меньшей мере один цеолит типа FAU и имеет объем мезопор от 0,02 до 0,15 см3/г и объемную долю мезопор от 0,1 до 0,5. 2 н. и 16 ...

НОСИТЕЛЬ ДЛЯ АФФИННОЙ ХРОМАТОГРАФИИ И СПОСОБ ОЧИСТКИ БИОЛОГИЧЕСКОГО ВЕЩЕСТВА

Изобретение относится к носителю для аффинной хроматографии и способу очистки биологического вещества с использованием носителя для аффинной хроматографии. Носитель для аффинной хроматографии содержит: подложку; гидрофильный полимер; и аффинный лиганд, в котором подложка состоит из по меньшей мере одного выбранного из группы, состоящей из полисахарида, полимера на основе акрилата, полимера на основе метакрилата и полимера на основе стирола, гидрофильный полимер представляет собой по меньшей мере одно выбранное из группы, состоящей из декстрана, карбоксиметилдекстрана и пуллулана, аффинный лиганд представляет собой по меньшей мере одно выбранное из группы, состоящей из антителосвязывающего белка и антителосвязывающего полипептида, карбоксигруппу вводят в носитель для аффинной хроматографии и количество введенной карбоксигруппы составляет от 15 ммоль/л геля до 60 ммоль/л геля в отношении ионообменной емкости. Техническим результатом является создание носителя для аффинной хроматографии с ...

СПОСОБ ПОЛУЧЕНИЯ МИКРОПОРИСТОГО ТРИМЕЗИАТА МЕДИ(II)

Изобретение относится к области химии и химической технологии, а именно к координационной и синтетической химии металл-органических координационных полимеров, обладающих сорбционной ёмкостью, в частности к способу получения микропористого тримезиата меди(II), включающему этапы, на которых в этиловом спирте растворяют тримезиновую кислоту и добавляют водный раствор соли меди(II) с получением смеси, в которой следующее соотношение компонентов, масс.%: 50–80% спирта, 5–10% тримезиновой кислоты, 10–20% соли меди, вода — остальное, причем смесь нагревают при 20–100°C в течение 0,5–5 часов с периодическим добавлением по каплям 0,5–2%-ого раствора щелочного агента или добавлением щелочного агента в количестве от 0,5 до 2 мольных частей на каждую мольную часть соли меди, выделяют осадок, который охлаждают до 20-30°C, очищают последовательной обработкой этанолом и дистиллированной водой или водным раствором этанола с концентрацией 10–30% и высушивают на воздухе при 70-80°C до появления у порошка ...

Аппарат для разделения эмульсий

Изобретение относится к области разделения эмульсий фильтрацией, в частности к области очистки жидкостей от маслонефтепродуктов и органических веществ, и может быть использовано в нефтедобывающей, химической, нефтехимической, пищевой, фармацевтической, машиностроительной и других отраслях промышленности, а также в системах очистки сточных вод. Аппарат для разделения эмульсий содержит корпус с фильтрующей загрузкой. В качестве фильтрующей загрузки используют открытопористые гранулы. Открытые поры гранул обладают капиллярным эффектом по отношению к дисперсионной среде. Часть поверхности гранул выполнена несмачиваемой для дисперсной фазы. Несмачиваемость поверхности гранул дисперсной фазой обеспечивается путем предварительной пропитки поверхности дисперсионной средой. В ходе фильтрации в пирамидоподобных полостях между гранулами скорость потока резко снижается и дисперсная фаза начинает оседать на выступах поверхности гранул, постепенно заполняя эти полости полностью. При обратной промывке ...

СТРУКТУРЫ СЛИТОГО БЕЛКА ШЕЛКА ПАУКОВ ДЛЯ СВЯЗЫВАНИЯ С ОРГАНИЧЕСКОЙ МИШЕНЬЮ

... 1. Белковая структура, способная к селективному взаимодействию с органической мишенью, выбранной из группы, состоящей из области кристаллизующегося фрагмента (F) IgG и молекул, содержащих IgG или его производные, где указанная белковая структура представляет собой полимер, содержащий в качестве повторяющегося структурного элемента рекомбинантный слитый белок, который способен к селективному взаимодействию с органической мишенью, и содержащий части B, REP и CT, где полимер содержит более 100 структурных элементов слитого белка и где:B представляет собой неспидроиновую часть из более чем 30 аминокислотных остатков, которая обеспечивает способность к селективному взаимодействию с органической мишенью, где часть B выбрана из группы, состоящей из Z-домена белка A стафилококков, белка A стафилококков и его доменов E, D, A, B и C; и белковых фрагментов, имеющих по меньшей мере 70% идентичность с любой из этих аминокислотных последовательностей;части REP и CT обеспечивают способность образовывать ...

ВЫСОКОЭФФЕКТИВНЫЕ АДСОРБЕНТЫ НА ОСНОВЕ АКТИВИРОВАННОГО УГЛЯ С ВЫСОКОЙ ПОРИСТОСТЬЮ, ПРЕДСТАВЛЕННОЙ МЕЗО- И МАКРОПОРАМИ

... 1. Высокоэффективные адсорбенты на основе активированного угля в форме отдельных зерен активированного угля, в которых: ! по меньшей мере, 70% общего объема пор высокоэффективных адсорбентов составляют поры диаметром более 20 Å, ! высокоэффективные адсорбенты характеризуются мерой центра распределения диаметра пор (средним диаметром пор) более 25 Å, ! высокоэффективные адсорбенты обладают удельной поверхностью, измеренной методом БЭТ, по меньшей мере, 1250 м2/г, и ! высокоэффективные адсорбенты характеризуются йодным числом, по меньшей мере, 1250 мг/г. ! 2. Высокоэффективные адсорбенты на основе активированного угля по п.1, в которых удельная поверхность по БЭТ высокоэффективных адсорбентов соответствует диапазону от 1250 до 2800 м2/г. ! 3. Высокоэффективные адсорбенты на основе активированного угля по п.1, отличающиеся тем, что высокоэффективные адсорбенты характеризуются адсорбцией бутана в диапазоне от 30 до 80%. ! 4. Высокоэффективные адсорбенты на основе активированного угля по п.1 ...

АДСОРБИРУЮЩИЙ МАТЕРИАЛ, СОСТОЯЩИЙ ИЗ ПОРИСТОГО ФУНКЦИОНАЛЬНОГО ТВЕРДОГО ВЕЩЕСТВА, ВВЕДЕННОГО В ПОЛИМЕРНУЮ МАТРИЦУ

... 1. Адсорбирующий материал, содержащий, по меньшей мере, одно пористое функциональное твердое вещество, введенное в полимерную матрицу, причем указанный адсорбирующий материал содержит пористое функциональное твердое вещество в количестве 45-80 мас.% по отношению к массе обработанного и активированного адсорбирующего материала и указанную полимерную матрицу, содержащую, по меньшей мере, один органический полимер и имеющую объем вторичных пор в дополнение к объему первичных пор пористого функционального твердого вещества. 2. Адсорбирующий материал по п.1, в котором количество органического полимера составляет 20-55 мас.% по отношению к массе обработанного и активированного адсорбирующего материала. 3. Адсорбирующий материал по п.1 или 2, в котором пористым функциональным твердым веществом является адсорбирующее вещество. 4. Адсорбирующий материал по п.3, в котором адсорбирующее вещество выбрано из цеолитов групп 1, 2, 3, 4, 5, 6 и 7, композиций со структурами изо-типа, соответственно, изоморфными ...

Polymer composites for sepn. and carrier materials e.g. in dialysis - contains high polymer component consisting of more than 50 per cent cellulose, and sulphonate and/or sulphate contg. polymers

A polymer composite to be used as a separating and carrier material in the form of moulded bodies based on cellulose and water- and/or alkali-soluble or dispersible polymer systems has a high polymer component which consits of (a) more than 50% cellulose and the rest (b) sulphonate- and/or sulphate- gp. contg. polymers and/or copolymers and/or polysaccharide derivs. USE/ADVANTAGE - The composites can be used as separating and carrier materials in blood detoxification processes in dialysis, ultrafiltration and haemoperfusion. The composite can be prepd. economically by a viscose process and has better compatibility with blood than previously used cellulose regenerate materials. (4pp Dwg.No.0/0) ...

SAUGFÄHIGER WEGWERFARTIKEL

Adsorptionsmittel mit hoher spezifischer Oberfläche.

ULTRADÜNNE MATERIALIEN AUS FASER UND SUPERABSORBER

Adsorptionsvlies, insbesondere zur Adsorption von petrochemischen Substanzen aus flüssigen Phasen und/oder zur Adsorption von Geruchsstoffen aus Gasphasen mit zumindest einem Spinnvlies und Verfahren zur Herstellung eines Adsorptionsvlieses

Adsorptionsvlies, insbesondere zur Adsorption von petrochemischen Sub stanzen aus flüssigen Phasen und/oder zur Adsorption von Geruchsstoffen aus Gasphasen, mit zumindest einem Vlies. Auf zumindest einer Oberfläche des Vlieses ist ein Polymer aufgetragen, wobei das Polymer zumindest einen Adsorptionsstoff als Füllstoff enthält, welcher Adsorptionsstoff Mikroporen und/oder Mesoporen und/oder Makroporen aufweist.

Chromatography column

A chromatography column 50 containing a bed of packed particles comprising fused core particles. The bed comprises a plurality of bed sections 51,53 and each bed section has an average particle diameter calculated from the particles in that section. There are at least two different average particle diameter bed sections, wherein the particles of each bed are separated from particles of an adjacent bed by a partition 78 that is liquid permeable to allow through a flow of mobile phase. Preferably each partition is a frit and the partition prevents particles from one section from mixing with particles of an adjacent section. In use, a liquid mobile phase containing a sample to be separated into components is flowed through the packed column. Advantageously a high column efficiency can be provided with lower pressure drop per unit length of the column.

Method for preparing a sorbent

Solar energy collector

Hollow glass microspheres (62) made from a low heat conductivity glass composition containing a high vacuum and a thin metal coating (63) deposited on the inner wall surface of the microspheres are described. The hollow glass microspheres are used to make superior insulation materials in the construction of highly efficient solar energy collectors. The hollow glass microspheres can also be made to contain a thin transparent or reflective metal coating deposited on the inner wall surface of the microspheres by adding to the blowing gas small dispersed metal particles and/or gases of organo-metal compounds and decomposing the organo-metal compounds. The hollow glass microspheres can be made from low heat conductivity glass compositions. The microspheres can be used to make improved insulation materials and composites and insulating systems, and panels (61). The hollow glass microspheres can be used as filler materials in plastics, in plastic foam compositions and in concrete and asphalt compositions ...

Copper sorbents suitable for the removal of mercury from fluid streams

A SOLAR ENERGY COLLECTOR

A method of preparation of superfically porous particles with precisely controlled particle density, and a use thereof

DUCTILE COMPOSITIONS FROM ACTIVATED CARBON AND FROM THIS MANUFACTURE FORMED ARTICLES

ELECTRICALLY HEATABLE ONE ACTIVATED CHARCOAL BODY FOR ADSORPTION AND DESORPTION USES

GIS-type zeolite

Provided is a GIS-type zeolite having a (101) diffraction peak where a diffraction angle 2θ=12.55° to 12.90° in a spectrum obtained by x-ray diffraction.

ADSORBING MATERIAL COMPRISED OF POROUS FUNCTIONAL SOLID INCORPORATED IN A POLYMER MATRIX

Method for preparing a sorbent

A method is described for preparing a sorbent comprising the steps of: (i) forming agglomerates comprising a particulate support material, (ii) coating the agglomerates with a coating mixture powder comprising a particulate copper sulphide and a particulate calcined, rehydratable alumina to form a coated agglomerate, and (iii) drying the coated agglomerate to form a dried sorbent.

Molecularly Imprinted Polymer beads for extraction of metals and uses thereof

The present disclosure provides Molecularly Imprinted Polymer (MIP) technology for selectively sequestering one or more target molecules from chemical mixtures. Also disclosed herein are MIP beads and methods of making and using thereof.

Electronically heatable activated carbon bodies for adsorption and desorption applications

METHOD AND APPARATUS FOR PRODUCING HOLLOW MICROSPHERES

Hollow glass microspheres made from a low-heat conductivity glass composition containing a high vacuum and a thin metal coating deposited on the inner wall surface of the microspheres are described. The hollow glass microspheres are used to make superior insulation materials in the construction of highly efficient solar energy collectors. The hollow glass microspheres are made by forming a liquid film of molten glass across a coaxial blowing nozzle, applying a metal vapor blowing gas at a positive pressure on the inner surface of the glass film to blow the film and form an elongated cylinder shaped liquid film of molten glass. A transverse jet is used to direct an inert entraining fluid over and around the blowing nozzle at an angle to the axis or the blowing nozzle. The entraining fluid as it passes over and around the blowing nozzle fluid dynamically induces a pulsating or fluctuating pressure field at the opposite or lee side of the blowing nozzle in the wake or shadow of the coaxial ...

CENTRIFUGE APPARATUS AND METHOD FOR PRODUCING HOLLOW MICROSPHERES

A centrifuge apparatus and a method of using the apparatus to make hollow glass microspheres and hollow glass vacuum microspheres. The centrifuge has a rotor with a plurality of coaxial blowing nozzles disposed in the outer peripheral wall of the rotor. Molten glass is supplied to the centrifuge and by centrifugal force is caused to coat the inner wall surface of the rotor and be fed to the coaxial nozzles. A blowing gas or metal vapor blowing gas is supplied to the centrifuge and fed to the coaxial blowing nozzles. An entraining fluid is also supplied to the centrifuge which flows through the centrifuge and is directed at the coaxial blowing nozzles. The hollow glass vacuum microspheres are made by forming a liquid film of molten glass across the coaxial blowing nozzles, applying a metal vapor blowing gas at a positive pressure on the inner surface of the glass film to blow the film which combines with the centrifugal force to form an elongated cylinder shaped liquid film of molten glass ...

ADSORBENT PARTICLES

Provided is an adsorbent material comprising iron oxyhydroxide, the adsorbent material being superior in adsorption rate and adsorption efficiency to conventional adsorbent products. The adsorbent material of the present invention is adsorbent particles having a crystal structure constituted of ß-iron oxyhydroxide and having an average crystallite diameter, as determined by X-ray diffractometry, of 10 nm or smaller. At least 90% by volume of the particles are configured of granular crystals having a crystal grain diameter of 20 nm or smaller or columnar crystals having a width of 10 nm or less and a length of 30 nm or less. The adsorbent particles are characterized by the following (A) and/or (B). (A) To contain a metallic element other than iron in an amount of 0.1-20 mass% with respect to the iron element. (B) To contain sulfur oxoacid ions in an amount of 0.01-20 mass% in terms of sulfur element amount with respect to the iron element.

ANTICANCER AGENT ADSORBING SHEET BODY

... [Problem] To provide an anticancer agent-adsorptive sheet body which can exhibit a sufficient effect of adsorbing and holding a highly toxic drug such as an anticancer agent, and which makes it possible to further improve the safety of medical practitioners in medical environments. [Solution] An anticancer agent-adsorptive sheet body 1A provided with a laminate composed of: a drug solution-absorptive layer part 10a which can absorb a drug solution containing a drug molecule of an anticancer agent; a drug solution-permeable part 20 which is arranged on a first surface 18 side of the drug solution-absorptive layer part, and through which the drug solution can penetrate toward the drug solution-absorptive layer part side; and a penetration blocking part 30 which is arranged on a second surface 19 side of the drug solution-absorptive layer part, and which can prevent the leakage of the drug solution from the drug solution-absorptive layer part side. In the anticancer agent-adsorptive sheet ...

IMMUNOSUPPRESSIVE PROTEIN ADSORPTION MATERIAL AND ADSORPTION COLUMN

The purpose of the present disclosure is to provide an adsorbing material in which the physical strength of a carrier material is maintained and immunosuppressive proteins are efficiently adsorbed. The present disclosure provides an immunosuppressive-protein-adsorbing material that includes a water-insoluble carrier to which is bonded one or more nitrogen-containing compounds selected from polyamines represented by a prescribed formula and aliphatic amines represented by a prescribed formula, the total amount of amino groups on the water-insoluble carrier being greater than 0 µmol and no greater than 2500 µmol per gram, and the amount of primary amino groups on the water-insoluble carrier being no greater than 450 µmol per gram.

PRESSURE DRIVEN ENZYME COUPLED MEMBRANES

AGGLOMERATED ZEOLITIC ADSORBENTS, THEIR METHOD OF PREAPRATION AND THEIR USES

La pr‚sente invention concerne des adsorbants z‚olitiques agglom‚r‚s … ba se de z‚olite X de rapport Si/Al tel que 1,15 Подробнее

APPARATUS AND SYSTEMS HAVING AN ENCASED ADSORBENT CONTACTOR AND SWING ADSORPTION PROCESSES RELATED THERETO

Provided are encased parallel channel adsorbent contactor apparatus and systems and swing adsorption processes related thereto. Encased parallel channel adsorbent contactors are useful in swing adsorption processes. A plurality of the encased adsorbent contactors are loaded and sealed together in a swing adsorption vessel such that substantially an entire feed stream must pass through the channels of the contactors and not through stray gaseous stream paths between contactors.

ABSORBENT UNITS FOR CHEMICAL HEAT PUMPS AND PROCESS FOR THEIR PRODUCTION

... 2126992 9411457 PCTABS00166 Ces blocs sont constitués d'une trame thermoconductrice, par exemple une éponge métallique, et de zéolite hydrophile agglomérées par un liant zéolitisé. Ces blocs, perméables aux gaz ont une bonne conductibilité thermique, sont moulables aux dimensions des réacteurs des pompes à chaleur chimiques à cycles d'adsorption/désorption rapides dont ils constituent l'élément actif.

HETEROGENEOUS ADSORBENT AND THE USE THEREOF FOR DIFFUSION SEPARATION METHODS

The inventive heterogeneous adsorbent comprises a core and at least one external continuous layer. The core of said adsorbent exhibits a volume adsorption capacity which is equal to or higher than 35 % of the volume of the adsorbent, and the layer exhibits a diffusion selectivity higher than 5. Said adsorbent is used for gas or liquids separation methods. © KIPO & WIPO 2007 ...

Recovery of xe and other high value compounds

MIXTURE TO BE APPLIED ONTO A DUMP OF RESIDUE SALT

The invention relates to a mixture (2) to be applied onto a dump of residue salt (1) as an infiltration-inhibiting layer for reducing the occurrence of pile waste water caused by precipitation, wherein the mixture comprises residue salt and a mineral additive which is poorly soluble to insoluble and has hydraulically and/or pozzolanically setting properties, and wherein an impermeable barrier layer (3) forms resulting from a chemical reaction after the admission of water.

Exhaust gas-purifying composition

An exhaust gas purifying composition of the present invention contains zeolite that is BEA zeolite having an SiO2/Al2O3 molar ratio of greater than 25 and 600 or less and containing phosphorus. Furthermore, the exhaust gas purifying composition preferably contains zirconium in addition to phosphorus. Furthermore, the zeolite has an SiO2/Al2O3 molar ratio of from 30 to 150. The present invention provides an exhaust gas purifying composition having excellent HC adsorbability for exhaust gas purification in internal combustion engines such as gasoline engines.

Filter materials for treating and purifying gas

The invention relates to a filter material which is used, in particular in filters or as a filter for treating and/or purifying gas, in particular for clean room environments. The filter material comprises at least one activated carbon, in particular with reactive and/or catalytic finishing and the activated carbon is present in the form of discrete activated carbon particles, preferably in a spherical and/or grain form. The activated carbon comprises and/or is provided with at least one metal component which contains at least one metal-containing ionic liquid (IL), containing in particular metal ions, preferably based on a metal compound.

Methods for purifying a solvent

An improved inclusive method for purifying a polar solvent such as water includes the re-suspension of finely divided layered materials within which contaminants have been captured, wherein the re-suspension is in a solvent selected primarily on the basis of its ability to re-suspend the finely divided layered materials and/or for its effect on the included contaminant material, and within which additional materials may or may not be intentionally dissolved, mixed, or suspended, in order to recover and reuse the finely divided layered material and/or to selectively recover a specific included contaminant or several specific included contaminants in series. The process is useful in the rapid and efficient recovery of the finely divided layered materials, and in the removal of suspended particles, dissolved materials, immiscible liquids, and living organisms from the polar solvent.

Реакционное средство, содержащее пористую подложку, пропитанную органическим соединением, способным образовывать газовые клатраты, и его использование для отделения и хранения СО

Изобретение относится к реакционному средству, содержащему пористую подложку, на которую нанесено органическое соединение в твердой форме, способное образовывать газовые клатраты. Описано реакционное средство, содержащее пористую подложку, на поверхность и/или внутрь пор которой нанесено органическое соединение в твердой форме, выступающее в качестве молекулы-хозяина, образующей клатрат, отличающееся тем, что массовый процент нанесенного органического соединения составляет от 5% до 60% по массе в расчете на общую массу указанного реакционного средства, причем указанное органическое соединение выбрано из гидрохинона и его производных и фенола и его производных. Также описаны способ выделения СОиз газовой смеси и реактор для выделения СОиз газовой смеси. Технический результат: получено реакционное средство эффективное в отношении улавливания газов, в частности CO. 4 н. и 12 з.п. ф-лы, 10 ил., 4 табл., 3 пр.

Композиционный магнитосорбент для удаления нефти, нефтепродуктов и масел с поверхности воды

Изобретение относится к области очистки промышленных сточных вод. Предложен композиционный магнитосорбент для удаления нефти, нефтепродуктов и масел с поверхности воды, представляющий собой пористую матрицу на основе шелухи целлюлозосодержащих отходов растениеводства с размерами пор 0,5-1,3 мм, характеризующийся тем, что он дополнительно содержит пыль газоочистки стальную незагрязненную с размером частиц 5-10 мкм, распределенную в шелухе как на внешней поверхности матрицы, так и в ее порах, при этом тонкоизмельченная шелуха подсолнечника составляет 35-50 мас.%, пыль газоочистки стальная незагрязненная - 25-40 мас.% и связующее парафин - 10-40 мас.%. Технический результат - получение магнитосорбента, имеющего высокую активность в магнитном поле, высокие эксплуатационные характеристики, который способен быстро и эффективно удалять разливы нефти и нефтепродуктов с поверхности воды при использовании магнитного устройства. 4 ил., 8 табл., 8 пр.

СПОСОБ УВЕЛИЧЕНИЯ ОБЪЕМНОЙ ВМЕСТИМОСТИ В СИСТЕМАХ ХРАНЕНИЯ И ВЫСВОБОЖДЕНИЯ ГАЗА

Группа изобретений относится к пористому газосорбирующему материалу с превосходной рабочей весовой вместимостью и объемной вместимостью, а также к системе хранения газа и к способу хранения газа. Пористый газосорбирующий материал содержит менее чем приблизительно 100 куб. см/л объема сорбирующего материала в порах с размерами, составляющими менее чем приблизительно 9 ; более чем приблизительно 200 куб. см/л объема сорбирующего материала в порах с размерами, составляющими приблизительно от 9 до 27 ; и более чем приблизительно 50 куб. см/л объема сорбирующего материала в порах с размерами, составляющими приблизительно от 27 до 490 . Техническим результатом является увеличение объемной вместимости резервуара. 3 н. и 28 з.п. ф-лы, 16 ил.

СПОСОБ СИНТЕЗА ОТРИЦАТЕЛЬНО ЗАРЯЖЕННОГО ФЕРОКСИГИТА МАРГАНЦА ДЛЯ СЕЛЕКТИВНОГО УДАЛЕНИЯ РТУТИ ИЗ ВОДЫ

Изобретение относится к области химической инженерии, в частности к технологии очистки воды твердыми адсорбентами. В частности, изобретение относится к способу синтеза абсорбирующего материала, состоящего из фазового четырехвалентного фероксигита марганца δ-Fe(1-x)MnxOOH с отрицательно заряженной поверхностью гранулы, в которой от 0,05 до 25% железа изоморфно замещено атомами марганца. Получение осуществляют в двух проточных реакторах непрерывного действия с мешалкой, расположенных последовательно, при слабокислых условиях в первом реакторе (pH от 5 до 6) и слабощелочных условиях во втором реакторе (pH от 9 до 10) и окислительно-восстановительном потенциале от 600 до 700 мВ. Материал может быть применен для поглощения ртути, а также других тяжелых металлов из потоков воды и горячего газа. Обеспечивается высокая эффективность удаления ртути из воды при сохранении окислительной способности и низкой себестоимости. 4 н. и 3 з.п. ф-лы, 4 ил., 5 пр.

Способ получения гранулированного сорбента на основе вермикулита для удаления углеводородов из водных растворов

Изобретение относится к химической промышленности, а именно к получению гранулированного сорбента на основе вермикулита, используемого в химической и нефтехимической промышленности в качестве адсорбента для удаления углеводородов из водных растворов. В способе получения сорбента на основе вермикулита для удаления углеводородов из водных растворов, заключающемся в обработке вермикулита, сушке, формовании и прокаливании гранул, согласно изобретению, обработку вермикулита осуществляют модифицированием его структуры механохимической активацией в течении 5÷30 минут в ролико-кольцевой вибромельнице, из полученного материала готовят шихту мокрым способом с влажностью 20÷25 мас.%, затем формуют гранулы, полученный гранулят сушат 4÷4,5 часа при температуре 70÷90°С и направляют в печь для последующего прокаливания при 400÷900°С на протяжении 4÷5 часов. Технический результат - увеличение удельной поверхности сорбента, увеличение адсорбционной емкости, увеличение степени извлечения нефтепродуктов, ...

ГРАНУЛЯТЫ ИЗ НАТУРАЛЬНЫХ СЛОИСТЫХ МИНЕРАЛОВ И СПОСОБ ИХ ПОЛУЧЕНИЯ

Изобретение относится к способу получения гранулятов из глины, а также к грануляту, полученному этим способом. В способе используется глинистый материал, удельная поверхность которого составляет более 150 м2/г, объем пор более 0,45 мл/г и катионообменная емкость более 15 мг-экв/100 г. В исходный материал вводят жидкий агент грануляции в количестве, по меньшей мере, 20 мас.% и полезное вещество предпочтительно из группы ПАВ, силиконов и кормовых добавок. Изобретение обеспечивает получение гранулята с высокой поглотительной способностью по полезным веществам. 4 н. и 18 з.п. ф-лы, 10 табл.

ПОГЛОТИТЕЛЬ И ВПИТЫВАЮЩЕЕ ИЗДЕЛИЕ

Этот поглотитель (1) содержит впитывающий лист (2), который содержит слой подложки (20) и слой поглотителя (21), который содержит поглощающие полимеры (P1), зафиксированный на одной из поверхностей слоя подложки (20); и слой переплетенных волокон (3). Поглощающие полимеры (P1) слоя поглотителя (21) находятся рядом со слоем переплетенных волокон (3). Поглощающие полимеры (P1) слоя (21) поглотителя предпочтительно фиксируются на одной из поверхностей слоя подложки (20) с помощью термоплавкого адгезива. Поглотитель (1), имеющий такую конфигурацию, тонкий и имеет превосходные характеристики впитывания и стабильности формы. 2 н. и 17 з.п. ф-лы, 4 ил.

СПОСОБ ПОЛУЧЕНИЯ УГЛЕРОДНОГО АДСОРБЕНТА

Изобретение относится к способу получения углеродного адсорбента, в котором нафталин растворяют в углеводородном растворителе и добавляют сажу и концентрированную (98 мас.%) серную кислоту, при этом сажу берут в количестве от 2 до 15 массовых частей на 100 объемных частей растворителя, нафталин в количестве от 0,5 до 2,0 массовых частей на 1 массовую часть сажи, а концентрированную серную кислоту (98 мас.%) в количестве 0,1-0,4 объемных частей на 1 массовую часть нафталина; далее полученную смесь при непрерывном интенсивном перемешивании нагревают до 90-160°С и выдерживают в течение 1-4 часов; затем полученную смесь охлаждают с получением твердого продукта; после чего твердый продукт отделяют от раствора и высушивают; далее из полученного твердого продукта отделяют готовые гранулы и стабилизируют их в инертной газовой среде при температуре не более 250°С, далее гранулы карбонизуют при температуре 600-1200°С и охлаждают до температуры окружающей среды. 1 з.п. ф-лы, 1 табл., 17 пр.

ВЫСОКОЭФФЕКТИВНЫЕ УГЛЕРОДНЫЕ АДСОРБЕНТЫ

Изобретение относится к углеродному адсорбенту со структурой ядро–оболочка для применения при разделении газов, содержащему адсорбирующую оболочку и 10–90 об.% инертного ядра, с пористостью менее 10%. При этом указанная адсорбирующая оболочка содержит от около 75 до 99 мас.% по меньшей мере одного углеродного адсорбента и от около 1 до 25 мас.% по меньшей мере одного связующего, при этом размер частиц указанного адсорбента составляет от около 0,5 до 5 мм со сферичностью > 0,8, и причем указанный адсорбент характеризуется потерями при прокаливании (ППП) при температуре активации от 200 до 500°C в диапазоне от около 2 мас.% до около 15 мас.%. Также изобретение относится к циклическому процессу разделения объемных газов. Предлагаемый адсорбент обладает превосходными адсорбционными свойствами и физической прочностью. 2 н. и 15 з.п. ф-лы, 1 ил., 2 табл., 3 пр.

КРИСТАЛЛИЧЕСКИЕ ГЕРМАНОСИЛИКАТНЫЕ МАТЕРИАЛЫ НОВОЙ ТОПОЛОГИИ CIT-13 И СПОСОБЫ ИХ ПОЛУЧЕНИЯ

Изобретение относится к новым кристаллическим германосиликатным композициям и способам их получения. Кристаллические германосиликатные композиции, пригодные в катализе и для разделения газов, представляют собой композиции, содержащие трехмерный каркас, имеющий поры, определяемые 10- и 14-членными кольцами. Изобретение описывает способы получения данных композиций с использованием замещенных бензилимидазолиевых органических структурообразующих агентов (ОСОА). Также раскрыты способы применения данных кристаллических композиций. Обеспечиваются композиции с увеличенными размерами пор, способные обрабатывать более крупные молекулы. 7 н. и 30 з.п. ф-лы, 37 ил., 15 табл., 25 пр.

Гранула фильтрующего материала

Предложенное решение относится к области очистки жидкостей фильтрацией, в частности к очистке воды от нефти, нефтепродуктов, масел и других органических веществ; к очистке нефти, нефтепродуктов и масел от воды и пр. Может быть использовано в нефтедобывающей, химической, нефтехимической, пищевой, целлюлозно-бумажной, фармацевтической, машиностроительной и других отраслях промышленности, в частности для очистки технологических и сточных вод целлюлозно-бумажных производств, для очистки сточных вод от нефти, нефтепродуктов, масел растительного происхождения и животных жиров.Образец разбавленной битумной водной эмульсии (ГОСТ Р 52128-2003) объёмом 5 л с концентрацией битума в конечном растворе 250 мг/л пропускали через цилиндрическую сорбционную колонку (диаметр – 100 мм, высота фильтрующего слоя 1000 мм), наполненную керамическими гранулами (фракции 0,5-1,0 мм), выполненными из смеси на основе трепела с добавлением 5 % измельчённого мусковита. Трепел имеет высокоразвитую пористую структуру ...

Гранула фильтрующего материала для разделения эмульсий

Предложенное решение относится к области разделения несмешивающихся жидкостей контактированием с избирательно смачивающимся твердым телом, в частности к области очистки жидкостей от маслонефтепродуктов и органических веществ. Может быть использовано в нефтедобывающей, химической, нефтехимической, пищевой, фармацевтической, машиностроительной и других отраслях промышленности, а также в системах очистки сточных вод.Гранулы фильтрующего материала для разделения эмульсий, эквивалентный диаметр которых находится в интервале от 0,1 до 6,0 мм, формируют из измельченных частиц диатомита и обжигают при температуре 700-1000°С, что обеспечивает спекание частиц диатомита между собой при сохранении имеющихся между частицами пор.При очистке воды от нефти фильтровальную засыпку предварительно заливают чистой водой, которая заполняет поры гранул, создав в местах выхода пор на поверхность гранулы зоны, несмачиваемые для нефти (дисперсной фазы). Только после этого приступают к фильтрации водонефтяной эмульсии ...

Гранула фильтрующего материала для деэмульсации

Предложенное решение относится к области разделения эмульсий фильтрацией, в частности к области очистки жидкостей от маслонефтепродуктов и органических веществ. Может быть использовано в нефтедобывающей, химической, нефтехимической, пищевой, фармацевтической, машиностроительной и других отраслях промышленности, а также в системах очистки сточных вод.Гранулы фильтрующего материала для разделения эмульсий, эквивалентный диаметр которых находится в интервале от 0,1 до 6,0 мм, формируют из измельченных частиц диатомита и обжигают при температуре 700-1000°С, что обеспечивает спекание частиц диатомита между собой при сохранении имеющихся между частицами пор.При очистке воды от нефти фильтровальную засыпку предварительно заливают чистой водой, которая заполняет поры гранул, создав в местах выхода пор на поверхность гранулы зоны несмачиваемые для нефти (дисперсной фазы). Только после этого приступают к фильтрации водонефтяной эмульсии через слой диатомитовых гранул.Поскольку в ходе фильтрации в ...

Гранула фильтрующего материала для разделения эмульсий

Предложенное решение относится к области разделения эмульсий фильтрацией, в частности к области очистки жидкостей от маслонефтепродуктов и органических веществ. Может быть использовано в нефтедобывающей, химической, нефтехимической, пищевой, фармацевтической, машиностроительной и других отраслях промышленности, а также в системах очистки сточных вод.Гранулы фильтрующего материала для разделения эмульсий, эквивалентный диаметр которых находится в интервале от 0,1 до 6,0 мм, формируют из измельченных частиц диатомита и обжигают при температуре 700-1000°С, что обеспечивает спекание частиц диатомита между собой при сохранении имеющихся между частицами пор.При очистке воды от нефти фильтровальную засыпку предварительно заливают чистой водой, которая заполняет поры гранул, создав в местах выхода пор на поверхность гранулы зоны, несмачиваемые для нефти (дисперсной фазы). Только после этого приступают к фильтрации водонефтяной эмульсии через слой диатомитовых гранул.Поскольку в ходе фильтрации ...

Блочный композитный материал для аккумулирования газов и способ его получения

Изобретение относится к способу получения блочного композитного материала для аккумулирования газов. Способ включает смешение компонентов со связующим, формование получаемой смеси в блоки и их последующую сушку. Способ характеризуется тем, что в качестве компонентов используют металлоорганический координационный полимер и нанопористый углеродный адсорбент или адсорбент на основе углеродных нанотрубок, которые смешивают в пропорции от 30/70 до 95/5% масс., эффективные внутренние диаметры микропор смешиваемых компонентов отличаются между собой не менее чем на 0,4 и не более чем на 0,8 нм, в качестве связующего используют 2-15% водный раствор соединений из ряда: поливиниловый спирт, раствор хитозана в уксусной кислоте, оксиэтилцеллюлоза. Полученную смесь формуют под прессом в блоки в течение 1-2 мин при силе нагружения от 25 до 75 кН, блоки помещают в сушильную камеру при нормальных условиях, после чего поднимают температуру со скоростью не более 60 град/ч до 110-120°С и сушат не менее 12 ...

МЕТОД ХРОМАТОГРАФИИ СРОДСТВА К АНТИТРОМБИНУ III

... 1. Колонка хроматографии сродства, содержащая белок антитромбин III (ATIII), связанный с твердой подложкой, отличающаяся тем, что: ! а. белок ATIII является природным белком или его вариантом, ! б. белок ATIII предварительно активируют при помощи инкубации с не активированным низкомолекулярным гепарином (ГНММ) с высоким содержанием активных видов, ! в. белок ATIII ковалентно связан со смолой в соотношении примерно менее 2 мг белка на мл гидратированной смолы. ! 2. Колонка по п.1, отличающаяся тем, что соотношение между количеством узлов связи с ATIII, присутствующих в ГНММ, и количеством молекул ATIII находится в пределах примерно от 5 до 15. ! 3. Колонка по п.2, отличающаяся тем, что это соотношение составляет примерно 10. ! 4. Колонка по любому из пп.1-3, отличающаяся тем, что в качестве ГНММ используют эноксапарин®. ! 5. Колонка по п.1, отличающаяся тем, что соотношение ATIII/смола находится в пределах примерно от 0,5 до 1,5 мг белка на мл смолы. ! 6. Способ выделения видов, обладающих ...

СПОСОБ ПОЛУЧЕНИЯ КОМПОЗИЦИОННЫХ МАТЕРИАЛОВ

... 1. Способ получения нанокомпозиционного материала изa) по меньшей мере одной неорганической или металлорганической фазы; а такжеb) органической полимерной фазы,включающий полимеризацию по меньшей мере одного мономера, который включает- по меньшей мере одну первую способную к полимеризации мономерную структурную единицу А, которая содержит металл или полуметалл М, а также- по меньшей мере одну вторую способную к полимеризации органическую мономерную структурную единицу В, которая связана со способной к полимеризации структурной единицей А с помощью ковалентной химической связи,в условиях полимеризации, при которых как способная к полимеризации мономерная структурная единица А, так и способная к полимеризации мономерная структурная единица В полимеризуются с разрушением связи между А и В,причем мономеры, подлежащие полимеризации, включают первый мономер М1 и по меньшей мере один второй мономер М2, который отличается от мономера М1 по меньшей мере в одной из мономерных структурных единиц А ...

ФИЛЬТРЫ ДЛЯ ВОДЫ И СПОСОБЫ ИХ ПРИМЕНЕНИЯ

... 1. Фильтр для обеспечения питьевой водой, содержащий корпус, имеющий подводящий патрубок, отводящий патрубок и фильтрующее вещество, расположенное внутри указанного корпуса, отличающийся тем, что указанное фильтрующее вещество формируется, по меньшей мере, частично из множества фильтрующих частиц, имеющих точку нулевого заряда большую, чем 7, и сумма объемов мезопор и макропор указанных фильтрующих частиц является большей, чем 0,12 мл/г. 2. Фильтр по п.1, в котором сумма объемов мезопор и макропор указанного множества фильтрующих частиц находится между примерно 0,2 и примерно 2 мл/г. 3. Фильтр по п.2, в котором указанное множество фильтрующих частиц имеет точку нулевого заряда между примерно 9 и примерно 12. 4. Фильтр по п.3, в котором отношение суммы объемов мезопор и макропор указанного множества фильтрующих частиц к общему объему пор указанных фильтрующих частиц составляет больше, чем примерно 0,3. 5. Фильтр по п.4, в котором указанное множество фильтрующих частиц выбирается из группы ...

Тонкодисперсный адсорбент и способ получения адсорбента для глубокой осушки газа

Группа изобретений относится к способам адсорбционной осушки газов и может найти применение в различных отраслях промышленности для осушки газа вплоть до температуры точки росы минус 70°С. Тонкодисперсный адсорбент состоит из металлической ваты с размером волокон до 90 мкм и пористостью 90%, на поверхность которой нанесено адсорбирующее покрытие толщиной до 100 мкм из силикагеля или цеолита с размером частиц до 1 мкм. Для получения тонкодисперсного адсорбента адсорбирующее вещество измельчают до 1 мкм. Измельченное адсорбирующего вещество, в качестве которого используют силикагель или цеолит, смешивают с органическим растворителем при массовом соотношении от 1:3 до 1:10 и наносят полученную суспензию на металлическую вату. Затем сушат при температуре 50°С-100°С и подвергают термической обработке при температуре до 700°С. В результате на металлической вате образуется адсорбирующее покрытие. Группа изобретений обеспечивает повышение скорости адсорбции и упрощение способа приготовления тонкодисперсного ...

New polyurethanes containing cyclodextrins in chemically bonded form, show complexing power and are useful e.g. in producing filter materials or protective clothing

New polyurethanes (I), prepared from polyols and polyisocyanates, contain cyclodextrins and/or cyclodextrin derivatives in chemically bonded form, in an amount of 0.1-45 (preferably 1-12.5) wt. % based on the polyol components. An independent claim is included for a support material (II) coated with (I).

Superficially porous particles with precisely controlled particle density, and methods of preparation and use thereof

The invention relates superficially porous particles, wherein each particle comprises a hollow core, a non-porous inner shell, and a porous outer shell. The hollow core has a radius ranging from 20% to 90% of the radius of the entire particle, the particles have a median size range from about 0.5 μm to 100 μm, with a particle size distribution (one standard deviation) of no more than 15% of the median particle size, the particles have a specific surface area of from 5 to 1000 m2 /g, and the particles comprise a metal oxide selected from silica alumina, titania or zirconia. The particles may constitute a stationary phase in a separation device such as a chromatographic column. Further, a method for making these superficially porous particles is disclosed.

Adsorbent and analysis method using same

Absorber and absorbent article

Compounds

SCENT DISPENSER

... 1282833 Odour dispenser ARROWHEAD INDUSTRIES Inc 19 April 1971 9799/71 Heading B8C [Also in Division A5] A deodorizing and perfuming device comprises a package made by heat sealing together two sheets of a laminated sheet material so that they form an envelope which encloses an absorbent material, e.g. paper, impregnated with a perfume. The sheet material is a laminate having an (inner) heat-sealable plastic layer, an intermediate metal foil layer and an (outer) paper layer. The envelope is openable so that the perfume-impregnated material may be exposed. On the outside of the envelope are means such as an adhesive strip whereby the device can be attached to a surface.

Method for compressing gaseous materials in a contained volume

Hollow glass microspheres (62) made from a low heat conductivity glass composition containing a high vacuum and a thin metal coating (63) deposited on the inner wall surface of the microspheres are described. The hollow glass microspheres are used to make superior insulation materials in the construction of highly efficient solar energy collectors. The hollow glass microspheres can also be made to contain a thin transparent or reflective metal coating deposited on the inner wall surface of the microspheres by adding to the blowing gas small dispersed metal particles and/or gases of organo-metal compounds and decomposing the organo-metal compounds. The hollow glass microspheres can be made from low heat conductivity glass compositions. The microspheres can be used to make improved insulation materials and composites and insulating systems, and panels (61). The hollow glass microspheres can be used as filler materials in plastics, in plastic foam compositions and in concrete and asphalt compositions ...

ADSORBENT WITH HIGH SPECIFIC SURFACE.

PSA PROCEDURE USING A COMPOUND MATERIAL ADSORPTION BED WITH AN ADSORBENT AND PCM AGGLOMERATES

ABSORBENT THROW-AWAY ARTICLE

FILTER LAYER AND THEIR USE FOR THE CLEANING OF A PHOTO RESIST COMPOSITION

MATERIAL WITH MESOSTRUKTUR PARTICLES CONTAINING IN THE NANOMETER RANGE

Method for preparing a sorbent

A method is described for preparing a sorbent comprising the steps of: (i) mixing together a particulate copper sulphide material and a particulate calcined rehydratable alumina, (ii) shaping the mixture, and (iii) drying the shaped mixture to form a dried sorbent.

A DISPOSABLE ABSORPTIVE ARTICLE

The present invention concerns a disposable article for absorbing a liquid, wherein the article has a substantially non-liquid permeable layer forming an outer packaging surface of the article, and an absorptive material, wherein the outer packaging surface surrounds at least one side of the absorptive material, and wherein said outer packaging surface further includes an opening, through which liquid can pass into the absorptive material. The invention also relates to a method of producing an article and the use of said article in for example the plumbing business, as a drip absorbent, as a residual liquid absorbent, and as a condensate absorbent.

HOLLOW INORGANIC FILM FORMING MATERIAL MICROSPHERES

Hollow inorganic film forming microspheres made from a low heat conductivity inorganic composition (preferably glass) containing a high vacuum and a thin metal coating deposited on the inner wall surface of the microspheres are described. The hollow glass microspheres are used to make superior insulation materials in the construction of highly efficient solar energy collectors. The hollow glass microspheres can also be made to contain a thin transparent or reflective metal coating deposited on the inner wall surface of the microspheres by adding to the blowing glass small dispersed metal particles and/or gases of organo metal compounds and decomposing the organo metal compounds. The hollow glass microspheres can be made from low heat conductivity glass compositions. The microspheres can be used to make improved insulation materials and composites and insulating systems. The hollow glass microspheres can be used as filler materials in plastics, in plastic foam compositions and in contrete ...

PRESSURE DRIVEN ENZYME COUPLED MEMBRANES

Pressure-driven enzyme-coupled membranes are prepared starting with a membrane filter having pores of appropriate, molecular dimensions and composed of a polymeric matrix, the activation of that matrix (where necessary) under pressure-driven conditions to impart to it appropriate groups capable of coupling to enzymes and similar substances of biological activity under pressure-driven conditions, and then employing this system under pressure-driven conditions to effect conversion processes which include the use of the coupled enzymes as the catalysts.

METHOD AND APPARATUS FOR PRODUCING HOLLOW MICROSPHERES

TREATMENT METHOD OF RADIOACTIVE WASTE WATER CONTAINING RADIOACTIVE CESIUM AND RADIOACTIVE STRONTIUM

The present invention provides a treatment method of radioactive waste water containing radioactive cesium and radioactive strontium, comprising passing the radioactive waste water containing radioactive cesium and radioactive strontium through an adsorption column packed with an adsorbent for cesium and strontium, to adsorb the radioactive cesium and radioactive strontium on the adsorbent, wherein the adsorbent for cesium and strontium comprises: at least one selected from crystalline silicotitanates represented by the general formulas: Na4Ti4Si3O16.cndot.nH2O, (Na xK(1-x) 4Ti4Si3O16.cndot.mH2O and K4Ti4Si3O16.1H2O wherein x represents a number of more than 0 and less than 1, and n, m and 1 each represents a number of 0 to 8; and at least one selected from titanate salts represented by the general formulas: Na4Ti9O20.cndot.qH2O, (Na yK(1-y) 4Ti9O20.cndot.rH2O and K4Ti9O20.cndot.tH2O wherein y represents a number of more than 0 and less than 1, and q, r and t each represents a number of ...

TREATMENT METHOD OF RADIOACTIVE WASTE WATER CONTAINING RADIOACTIVE CESIUM AND RADIOACTIVE STRONTIUM

Provided is a method for treating a radioactive waste liquid containing radioactive cesium and radioactive strontium. In the method, a radioactive waste liquid containing radioactive cesium and radioactive strontium is passed through, at a linear flow rate (LV) of 1-40 m/h and a space velocity (SV) of 200 h-1 or less, an adsorption column filled to a bed height of 10-300 cm with an adsorbent material so as to adsorb the radioactive cesium and the radioactive strontium onto the adsorbent material. The adsorbent material is particulate with a particle diameter of 250-1200 µm and is a cesium or strontium adsorbent material which contains a crystalline silicotitanate represented by general formula A4Ti4Si3O16·nH2O (in the formula, A denotes Na, K or a combination thereof and n denotes a number between 0 and 8), which has a crystallite diameter of 60 Å or more and a half-value width at a diffraction peak of the lattice plane (100 plane) of 0.9° or less.

ACTIVATED CARBON MOLDED ARTICLE

The purpose of the present invention is to provide an activated carbon molded article which can satisfactorily adsorb an evaporated fuel generated from an automobile and can achieve low evaporated fuel emission performance when an automobile is parked for a long time of period. An activated carbon molded article having a specific surface area per volume of 290 to 520 m2/mL and an outer surface area per volume of 1.4 m2/L or more, wherein the specific surface area per volume is calculated from a specific surface area determined by a BET multipoint method and a packing density determined in accordance with JIS K 1474.

SPIDER SILK FUSION PROTEIN STRUCTURES FOR BINDING TO AN ORGANIC TARGET

A protein structure capable of selective interaction with an organic target is provided. The protein structure is a polymer comprising as a repeating structural unit a recombinant fusion protein that is capable of selective interaction with the organic target. The fusion protein is comprising the moieties B, REP and CT, and optionally NT. B is a non-spidroin moiety of more than 30 amino acid residues, which provides the capacity of selective interaction with the organic target. REP is a moiety of from 70 to 300 amino acid residues and is derived from the repetitive fragment of a spider silk protein. CT is a moiety of from 70 to 120 amino acid residues and is derived from the C-terminal fragment of a spider silk protein. NT is an optional moiety of from 100 to 160 amino acid residues and is derived from the N-terminal fragment of a spider silk protein. The fusion protein and protein structure thereof is useful as an affinity medium and a cell scaffold material.

APPARATUS AND SYSTEMS HAVING AN ENCASED ADSORBENT CONTACTOR AND SWING ADSORPTION PROCESSES RELATED THERETO

Provided are encased parallel channel adsorbent contactor apparatus and systems and swing adsorption processes related thereto. Encased parallel channel adsorbent contactors are useful in swing adsorption processes. A plurality of the encased adsorbent contactors are loaded and sealed together in a swing adsorption vessel such that substantially an entire feed stream must pass through the channels of the contactors and not through stray gaseous stream paths between contactors.

POLYMERIC STRUCTURES FOR ADSORBING BIOLOGICAL MATERIAL AND THEIR METHOD OF PREPARATION

A biologic-adsorbent, e.g., protein-adsorbent, material is prepared by forming a polymeric substrate into structures having high surface area topography whose biologic adsorbing properties can be controlled. Biologic adsorption by these structures of optimized high surface area topography is increased by mild treating of the surfaces, e.g., by oxygen plasma, without substantially altering topography. Structures can have tailored geometric features including microstructures, e.g., pillars, with a diameter from 100 nm - 50 µm and height greater than 1 µm.

ABSORBENTS HAVING ENHANCED SURFACE AREA

PATENT APPLICATION of THOMAS E. METEYER for ADSORBENTS HAVING ENHANCED SURFACE AREA Docket 85-037 JET/iav Highly crosslinked styrenic copolymers are treated to enhance their surface area by reacting residual vinyl groups in the copolymers in the presence of water or other non-swelling liquid and a Lewis-acid catalyst at elevated temperature ...

DEVICE AND SYSTEM, HAVING ENCASED ADSORBENTNYI CONTACTOR, AND CONNECTED WITH THIS CYCLIC ADSORPTION PROCESSES

Magnetic absorbent for removing arsenic and antimony through adsorption-superconducting magnetic separating and preparation method thereof

Method for regulating and controlling structure and performance of nanocomposite adsorbent

Agent to act against the oily stains and to return them not vermin

METHOD FOR MANUFACTURING GRANULAR WATER TREATMENT AGENT

The present invention relates to a method for manufacturing a granular water treatment agent which enables contaminants including floating materials, included in water, and soluble phosphorous to be treated at an ultra-high level. According to the present invention, the method for manufacturing a granular water treatment agent comprises the following steps: obtaining red mud in a condition of industrial waste having moisture content of 40-55% and pH 11-13; pre-treating waste red mud without drying by adding a first additive, comprising either fly ash or desulfurization plaster or a solidifying material obtained by mixing fly ash and desulfurization plaster, to the red mud and mixing the same; obtaining powder in a size of 5-50 μm by curing and hardening, in a shady place, the mixture of the step of pre-treating waste red mud without drying, grinding the cured product, and screening the cured product; and adding a second additive, comprising acidic chemicals obtained by mixing one or more ...

Adsorptive structures and the use thereof

The invention relates to adsorptive structures based on agglomerates of adsorber particles, each comprising a plurality of granular, preferably speherical adsorber particles, and to the production of said agglomerates, and to the use thereof. The adsorber particles of the individual agglomerates are each connected to each other by means of a preferably thermoplastic organic polymer, particularly a binder material, or the adsorber paraticles of the individual agglomerates are bonded to and/or made to adhere to a preferably thermoplastic organic polymer, particularly a hinder material.

Preparative chromatography column and methods

A chromatography column that captures components in a process liquid in a free flow state and allows elution in steps is described.

Environmentally-friendly animal litter

An animal litter composition that includes geopolymerized ash particulates having a network of repeating aluminum-silicon units is described herein. Generally, the animal litter is made from a quantity of a pozzolanic ash mixed with an alkaline activator to initiate a geopolymerization reaction that forms geopolymerized ash. This geopolymerization reaction may occur within a pelletizer. After the geopolymerized ash is formed, it may be dried and sieved to a desired size. These geopolymerized ash particulates may be used to make a non-clumping or clumping animal litter or other absorbing material. Aluminum sulfate, clinoptilolite, silica gel, sodium alginate and mineral oil may be added as additional ingredients.

Method for producing sorbents for co2 capture under high temperatures

A method of producing a CO 2 adsorbent and CO 2 adsorbents. The method including the steps of: (a) producing a mixture of at least one calcium salt and at least one metal support cation in at least one solvent; (b) drying the mixture to produce a solid containing a calcium metal salt; and (c) calcining the dried solid to produce a sorbent of calcium oxide dispersed in a porous metal support.

Nicotine adsorbent, quinoline adsorbent, benzopyrene adsorbent, toluidine adsorbent, and carcinogen adsorbent

A nicotine adsorbent includes a porous carbon material having a specific surface area of 10 m 2 /g or more according to the nitrogen BET method and a pore volume of 0.2 cm 3 /g or more according to the BJH method.

Porous block nanofiber composite filters

Porous block nano-fiber composite ( 110 ), a filtration system ( 10 ) and methods of using the same are disclosed. An exemplary porous block nano-fiber composite ( 110 ) includes a porous block ( 100 ) having one or more pores ( 200 ). The porous block nano-fiber composite ( 110 ) also includes a plurality of inorganic nano-fibers ( 211 ) formed within at least one of the pores ( 200 ).

Hydrophobic monomers, hydrophobically-derivatized supports, and methods of making and using the same

A composition is disclosed comprising a hydrophobic monomer having the structure: CH 2 ═CR 4 C(O)NHC(R 1 R 1 )(C(R 1 R 1 )) n C(O)XR 3 wherein n is an integer of 0 or 1; R 1 is independently selected from at least one of: a hydrogen atom, alkyls aryls, and alkylaryls, wherein the alkyls, aryls, and alkylaryls have a total of 10 carbon atoms or less; R 3 is a hydrophobic group selected from at least one of: alkyls, aryls, alkylaryls and ethers, wherein the alkyls, aryls, alkylaryls and ethers have a total number of carbon atoms ranging from 4 to 30; R 4 H or CH 3 ; X is O or NH. In some embodiments the hydrophobic monomer is derived from an amine or an alcohol (HXR 3 ) that has a hydrophilicity index of 25 or less. A polymerizable composition comprising the hydrophobic monomer is disclosed, which optionally may comprise a cross-linking monomer and/or a non-cross-linking monomer. This polymerizable mixture may be used to from hydrophobically-derivatized supports, which may be used in applications such as hydrophobic interaction chromatography.

Hybrid adsorbent and method of capturing carbon dioxide in gas

In a method of capturing carbon dioxide in a gas, carbon dioxide in a gas is adsorbed to the hybrid adsorbent prepared by mixing an adsorbent with iron oxide nanoparticles, microwaves are irradiated to the hybrid adsorbent and the carbon dioxide adsorbed to the hybrid adsorbent is desorbed from the hybrid adsorbent, and the carbon dioxide desorbed from the hybrid adsorbent is captured.

Method and apparatus for removing contaminant from fluid

Methods, apparatus, and systems for removing contaminant in a fluid (e.g., chemical and petrochemical gas streams) using nanostructures of a sorbent material coated on plates such as a silicon wafer. A plurality of such coated plates can be assembled to form a sorption structure having channels between the plates. When a fluid containing the contaminant is directed through the channels, the contaminant is adsorbed by the nanostructures of the sorbent material.

Positive electrode for rechargeable lithium battery and rechargeable lithium battery including same

Disclosed is rechargeable lithium battery that includes a positive electrode including a positive active material layer, a negative electrode including a negative active material and an electrolyte wherein the positive active material layer includes a positive active material, a binder, a conductive material, and an activated carbon, the activated carbon includes micropores in which manganese ions are adsorbed and trapped, and the activated carbon is included in an amount of about 0.1 wt % to about 3 wt % based on the total weight of the positive active material layer.

Amine containing fibrous structure for adsorption of co2 from atmospheric air

A structure is disclosed containing a sorbent with amine groups that is capable of a reversible adsorption and desorption cycle for capturing CO 2 from a gas mixture wherein said structure is composed of fiber filaments wherein the fiber material is carbon and/or polyacrylonitrile.

Nanoporous carbide derived carbon with tunable pore size

The present invention provides a method for producing a nanoporous carbide-derived carbon composition with a tunable pore structure and a narrow pore size. Also provided are compositions prepared by the method.

Adsorbent structures for removal of water and fuel contaminants in engine oil

Devices and methods for removal of condensed, blow-by contaminants with small molecular dimensions from the circulating lubricating engine oil of internal combustion engines, including automotive engines, with a positive crankcase ventilation system are disclosed. These condensable blow-by contaminants include water, alcohols and hydrocarbons with preponderantly seven or fewer carbon atoms. A macroporous structure comprising alumino-silicate particles with micro-pores is at least partially immersed in the circulating oil. The micro-pores are sized to adsorb the small, condensed, blow-by, contaminant molecules but not the larger oil molecules. The particles may be multi-layered, with an inner layer adapted for adsorption of polar molecules. Adsorption is most extensive at lower oil temperatures and decreases as the oil temperature increases. Thus at low temperatures the contaminant molecules may be adsorbed, removed from the oil and temporarily stored in the micropores. At high temperatures some of the contaminants will desorb and be re-incorporated in the oil. The desorbed contaminants will be carried with the higher temperature oil into the engine crankcase where they may vaporize and be removed by the engine positive crankcase ventilation system.

Mixed valency metal sulfide sorbents for heavy metals

A sorbent, suitable for removing heavy metals, including mercury, from fluids containing hydrogen and/or carbon monoxide at temperatures up to 550° C., in the form of a shaped unit comprising one or more mixed-valency metal sulphides of vanadium, chromium, manganese, iron, cobalt or nickel.

Renewable oil absorbent and method thereof

The present document describes an oil absorbent fiber comprising fragments of typha plant inflorescence, absorption apparatus comprising the oil absorbent fibers, as well as method of using the absorbent and/or the apparatus for absorbing oil.

Attrition resistant hardened zeolite materials for air filtration media

Environmental control in air handling systems that are required to provide highly effective filtration of noxious gases particularly within filter canisters that are ultrasonically welded enclosures is provided. In one embodiment, a filtration system utilizes a novel zeolite material that has been hardened to withstand ultrasonic welding conditions in order to reduce the propensity of such a material to destabilize and/or dust. Such a hardened zeolite thus enables for trapping and removal of certain undesirable gases (such as ammonia, ethylene oxide, formaldehyde, and nitrous oxide, as examples) from an enclosed environment, particularly in combination with metal-doped silica gel materials. Such a hardened zeolite is acidic in nature and not reacted with any salts or like substances and, as it remains in a hardened state upon inclusion within a welded filter device, the filter medium itself permits proper throughput with little to no dusting, thereby providing proper utilization and reliability for such a gas removal purpose. Methods of using and the application within specific filter apparatuses are also encompassed within this invention.

Media For Membrane Ion Exchange Chromatography Based On Polymeric Primary Amines, Sorption Device Containing That Media, And Chromatography Scheme And Purification Method Using The Same

Media and devices, such as anion exchangers including such media, wherein the media is a membrane having a surface coated with a polymer such as a polyallylamine. The resulting membrane offers stronger binding of protein impurities and superior removal of host cell proteins from biological samples than conventional ligands based on quaternary ammonium salts, including trimethylammonium ligands. Also described is a chromatography scheme and method for purifying monoclonal antibodies, wherein the anion exchange sorber is placed downstream of an affinity column (e.g., Protein A or Protein G) and optionally one or more polishing devices such as cationic exchange columns. Little or no dilution of the cation exchanger pool (or affinity column exchange pool where no cation exchanger is used) is necessary to lower the conductivity of the sample. The sorber functions well to strongly bind host cell proteins and other impurities in biological samples even at high conductivities and pH.

Methods and materials for performing hydrophobic interaction chromatography

A method for performing hydrophobic interaction chromatography includes providing at least one wall defining a chamber having an inlet and an exit, and a stationary phase disposed within the chamber. The stationary phase comprises particles or monolith having a hydrophobic surface and a hydrophilic ligand. The method also includes loading a sample onto the stationary phase in the chamber and flowing the sample over the stationary phase. The sample is separated into one or more compositions by hydrophobic interaction between the stationary phase and the one or more compositions.

Acid-impregnated activated carbon and methods of forming and using the same

An acid-impregnated activated carbon matrix is formed from a carbonaceous material by the addition of a mineral acid, and may be used to chemisorb ammonia from a gas stream. The ammonia reacts with the acid to form a fertilizer salt. The spent matrix may be used as a fertilizer, or the fertilizer salt may be elutriated from the matrix.

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

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.

Separating agent for optical isomers

To provide a novel separating agent for optical isomers based on a polymer having an optically active moiety, provided is a separating agent for optical isomers formed of: a helical polymer obtained by using an aromatic isonitrile as a monomer having an amide group in which an optically active amino acid is amide-bonded to an aromatic ring; and a carrier for carrying the helical polymer by being chemically bonded to an end of the helical polymer.

Epoxy-Amine Acid Gas Adsorption-Desorption Polymers and Oligomers, Processes for Preparing Same, and Uses Thereof

This disclosure involves an adsorption-desorption material, e.g., crosslinked epoxy-amine material having an M w from about 500 to about 1×10 6 , a total pore volume from about 0.2 cc/g to about 2.0 cc/g, and a CO 2 adsorption capacity of at least about 0.2 millimoles CO 2 per gram of crosslinked material, and/or linear epoxy-amine material having an M w from about 160 to about 1×10 6 , a total pore volume from about 0.2 cc/g to about 2.0 cc/g, and a CO 2 adsorption capacity of at least about 0.2 millimoles CO 2 per gram of linear material. This disclosure also involves processes for preparing the crosslinked epoxy-amine materials and linear epoxy-amine materials, as well as selective removal of CO 2 and/or other acid gases from a gaseous stream using the epoxy-amine materials.

Polyvinyl-Amine Acid Gas Adsorption-Desorption Polymers, Processes for Preparing Same, and Uses Thereof

This disclosure involves an adsorption-desorption material, e.g., crosslinked polyvinyl-amine material having an M w from about 500 to about 1×10 6 , total pore volume from about 0.2 cc/g to about 2.0 cc/g, and a CO 2 adsorption capacity of at least about 0.2 millimoles per gram of crosslinked material, and/or linear polyvinyl-amine material having an M w from about 160 to about 1×10 6 , total pore volume from about 0.2 cc/g to about 2.0 cc/g, and a CO 2 adsorption capacity of at least about 0.2 millimoles per gram of linear material. This disclosure also involves processes for preparing the crosslinked polyvinyl-amine materials and linear polyvinyl-amine materials, as well as selective removal of CO 2 and/or other acid gases from a gaseous stream using the polyvinyl-amine materials.

Drug-adsorbing material and medical device comprising same

A drug-adsorbing material capable of efficiently adsorbing and eliminating drugs (such as carcinostatic agents) from blood with a small amount without causing foreign body recognition reaction, such as blood coagulation, and a medical device provided with said drug-adsorbing material. The drug-adsorbing material is based on polymeric microparticles which swell upon adsorption of plasma components at pH value of 7 or above and keep their shape after swelling. The drug-adsorbing material is incorporated into a drug-administrating device for drug adsorption.

Adsorbent Filter Media For Removal Of Biological Contaminants In Process Liquids

Adsorbent filter media particularly suited for removal of biological contaminants in process liquids. A porous fixed bed of adsorbent material is formed, using only a granular adsorbent and a water-insoluble thermoplastic binder. The resulting composite filter allows for a higher amount of adsorbent with smaller adsorbent particles than conventional depth filters. Elimination of cellulose fiber, as well as the elimination of the thermoset binder, results in reduced contamination of the process liquid.

High Stability Diionic Liquid Salts

The present invention relates to diionic liquid salts of dicationic or dianionic molecules, as well as solvents comprising diionic liquids and the use of diionic liquids as the stationary phase in a gas chromatographic column.

Swing Adsorption Processes Utilizing Controlled Adsorption Fronts

A process for reducing the loss of valuable products by improving the overall recovery of a contaminant gas component in swing adsorption processes. The present invention utilizes at least two adsorption beds, in series, with separately controlled cycles to control the adsorption front and optionally to maximize the overall capacity of a swing adsorption process and to improve overall recovery a contaminant gas component from a feed gas mixture.

Pressure-Temperature Swing Adsorption Process for the Separation of Heavy Hydrocarbons from Natural Gas Streams

The present invention relates to a pressure-temperature swing adsorption process wherein gaseous components that have been adsorbed can be recovered from the adsorbent bed at elevated pressures. In particular, the present invention relates to a pressure-temperature swing adsorption process for the separation of C 2+ hydrocarbons (hydrocarbons with at least 2 carbon atoms) from natural gas streams to obtain a high purity methane product stream. In more preferred embodiments of the present processes, the processes may be used to obtain multiple, high purity hydrocarbon product streams from natural gas stream feeds resulting in a chromatographic-like fractionation with recovery of high purity individual gaseous component streams.

Gas Purification Process Utilizing Engineered Small Particle Adsorbents

A gas separation process uses a structured particulate bed of adsorbent coated shapes/particles laid down in the bed in an ordered manner to simulate a monolith by providing longitudinally extensive gas passages by which the gas mixture to be separated can access the adsorbent material along the length of the particles. The particles can be laid down either directly in the bed or in locally structured packages/bundles which themselves are similarly oriented such that the bed particles behave similarly to a monolith but without at least some disadvantages. The adsorbent particles can be formed with a solid, non-porous core with the adsorbent formed as a thin, adherent coating on the exposed exterior surface. Particles may be formed as cylinders/hollow shapes to provide ready access to the adsorbent. The separation may be operated as a kinetic or equilibrium controlled process.

Systems and methods for gas treatment

A system and process for the recovery of at least one halogenated hydrocarbon from a gas stream. The recovery includes adsorption by exposing the gas stream to an adsorbent with a lattice structure having pore diameters with an average pore opening of between about 5 and about 50 angstroms. The adsorbent is then regenerated by exposing the adsorbent to a purge gas under conditions which efficiently desorb the at least one adsorbed halogenated hydrocarbon from the adsorbent. The at least one halogenated hydrocarbon (and impurities or reaction products) can be condensed from the purge gas and subjected to fractional distillation to provide a recovered halogenated hydrocarbon.

Connected heat conducting structures in solid ammonia storage systems

A compacted block of material constructed of one or more units consisting of matter comprising an ammonia-saturated material capable of reversibly desorbing and ad- or absorbing ammonia surrounded by a gas-permeable enclosure made of a flexible material having a thermal conductivity of at least about five times the thermal conductivity of said ammonia-saturated material at −70° C.. to 250° C.. and methods for producing the same are described.

Split Flow Contactor

Systems and methods for contacting a liquid, gas, and/or a multi-phase mixture with particulate solids. The system can include a body having a first head and a second head disposed thereon. Two or more discrete fixed beds can be disposed across a cross-section of the body. One or more unobstructed fluid flow paths can bypass each fixed bed, and one or more baffles can be disposed between the fixed beds.

Microporous uzm-5 inorganic zeolite membranes for gas, vapor, and liquid separations

The present invention discloses microporous UZM-5 zeolite membranes, methods for making the same, and methods of separating gases, vapors, and liquids using the same. The small-pore microporous UZM-5 zeolite membrane is prepared by two different methods, including in-situ crystallization of one or more layers of UZM-5 zeolite crystals on a porous membrane support, and a seeding method by in-situ crystallization of a continuous second layer of UZM-5 zeolite crystals on a seed layer of UZM-5 zeolite crystals supported on a porous membrane support. The membranes in the form of disks, tubes, or hollow fibers have superior thermal and chemical stability, good erosion resistance, high CO 2 plasticization resistance, and significantly improved selectivity over polymer membranes for gas, vapor, and liquid separations.

Regenerable filter unit for removing metal, regenerable filter system including the same, and method of operating regenerable filter system

A filter unit may include a water permeable first electrode, a second electrode arranged so as to be spaced apart from and opposite to the first electrode, and a non-water permeable separator that is positioned between the first electrode and the second electrode. The first electrode may include a metal adsorbent (metal-adsorbing material) and thus may adsorb a metal included in the water. At least one of the first electrode and the second electrode may induce a water hydrolysis reaction to produce H + ions to regenerate the metal adsorbent. The filter unit may further include a voltage applier to provide a filter system.

Adsorbents for Radioisotopes, Preparation Method Thereof, and Radioisotope Generators Using the Same

Disclosed is a novel adsorbent for use in a 99 Mo/ 99m Tc generator, which is a medical diagnostic radioisotope generator, and in a 188 W/ 188 Re generator, which is a therapeutic radioisotope generator. The adsorbent composed of sulfated alumina or alumina-sulfated zirconia exhibits adsorption capacity superior to that of conventional adsorbents, and is stable and is thus loaded in a dry state in an adsorption column so that the radioisotope 99 Mo or 188 W can be adsorbed. Thus, it is possible to miniaturize the column, and such a miniaturized column is small, convenient to use, and highly efficient, and extracts a radioisotope satisfying the requirements for pharmaceuticals, and thus can be useful for radioisotope generators extracting 99m Tc or 188 Re.

Sorbent formulation for removal of mercury from flue gas

Methods and systems for reducing mercury emissions from fluid streams having a high concentration of sulfur oxide species are provided herein. In embodiments, mercury is removed from flue gas streams by injecting a dry admixture of a porous mercury adsorptive material and at least one dry agent into the flue gas stream.

Activated solid support and method

Disclosed is a method for activating a solid support material with epoxy groups and for immobilising ligands thereon, utilising phase transfer catalytic conditions. The method permits the introduction of epoxy groups and specific nucleophilic ligands on the support material with a high level of substitution. Furthermore, the invention provides a general method for immobilising a ligand for use in a wide variety of chromatographic separation procedures such as ion exchange chromatography, hydrophobic interaction chromatography (HIC), reverse phase chromatography (RPC), or affinity chromatography.

Methods and devices for nucleic acid purification

The invention provides pipette tip columns and automated methods for the purification of nucleic acids such as plasmids from unclarified cell lysates containing cell debris as well as methods for making and using such columns. The columns typically include a bed of medium positioned in the pipette tip column, above a bottom frit and with an optional top frit.

Sorbent compositions and methods of using same

Provided herein are compositions and methods for removing a variety of pollutants from wastewater. Such compositions are obtained by immobilizing barium-based hybrid materials, such as BaSO 4 :APRB. Such compositions are easy to separate from the treated wastewater. After separation, the compositions, which include the pollutants, may be conveniently further separated from the pollutants and thus recovered for use again.

Sorbent regeneration in a heated hollow-fiber assembly

Methods and apparatus relate to recovery of carbon dioxide and/or hydrogen sulfide from a gas mixture. Separating of the carbon dioxide, for example, from the gas mixture utilizes a liquid sorbent for the carbon dioxide. The liquid sorbent contacts the gas mixture for transfer of the carbon dioxide from the gas mixture to the liquid sorbent. The carbon dioxide then desorbs from the liquid sorbent using hollow-fiber contactors as a source of heat to liberate the carbon dioxide further separated by the hollow-fiber contactors from the liquid sorbent.

Method for producing potable water and/or purifying water including the elimination of a target compound and filtration within a filter drum

The invention relates to a method for treating water laden with pollutants for the purpose of making the water drinkable, said method including: an elimination step consisting of contacting said water laden with pollutants, within a stirred contact tank ( 2 ), with an active particulate material ( 19 ) using a predetermined concentration of the active particulate material ( 19 ) in said water; an extraction step consisting of continuously extracting from said contact tank ( 2 ) a mixture consisting of water and of active particulate material ( 19 ); a separation step consisting of continuously separating said active particulate material ( 19 ) from said mixture. According to the invention, the separation step consists in particular of feeding the mixture of water and active particulate material into a filter drum ( 4 ).

Hydrogen storing carbon material

Provided is a hydrogen-storing carbon material with improved hydrogen storage capacity. The hydrogen-storing carbon material has a total pore volume of 0.5 cm 3 /g or more, and a ratio of a total mesoporous volume to a total microporous volume per unit weight of 5 or more. In addition, the hydrogen-storing carbon material may have a nitrogen content of 0.5 wt % or more and less than 20 wt %. In addition, the hydrogen-storing carbon material may have a stable potential of −1.28 V or more when a cathode current with respect to the hydrogen-storing carbon material is held at 1,000 mA/g in electrochemical measurement by chronopotentiometry involving using the hydrogen-storing carbon material in a working electrode in a three-electrode method.

Method for the adsorptive drying of purified biogas and for regenerating laden adsorbents

In a method for adsorptively drying purified biogas and regenerating laden absorbents, foreign matter is not allowed to enter the purified biogas, the content of methane in the gas remains virtually unchanged and the effort involved in regenerating the laden adsorbent is reduced. Drying and regeneration are effected in a closed biogas cycle, wherein separate layers based on silica gel and molecular sieves are used as the adsorbent. The biogas to be dried first flows through the silica gel layer. The adsorbent is regenerated with exclusively heated, dried biomethane having a temperature of up to 150° C. which, after contact with adsorbent, is recirculated to the outflow of purified biogas. After regeneration, the bed is cooled by biomethane, which is subsequently recirculated to the outflow of purified biogas. Methane-containing water accumulating during drying and regeneration is recirculated to the biogas generation and/or purification.

Sol-gel derived compositions

Disclosed are sol gel derived materials obtained from at least one first precursor and at least one second precursor, as well as sol gel derived compositions containing a plurality of alkylsiloxy substituents obtained from such sol-gel derived materials.

Methods for Coupling of Molecules to Metal/Metal Oxide Surfaces

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.

Sorbent fiber compositions and methods of temperature swing adsorption

The various embodiments of the present invention relate to compositions, apparatus, and methods comprising sorbent fibers. More particularly, various embodiments of the present invention are directed towards sorbent fiber compositions for temperature swing adsorption processes. Various embodiments of the present invention comprise sorbent fiber compositions, apparatus comprising a plurality of sorbent fibers, and methods of using the same for the capture of at least one component from a medium, for example CO 2 from flue gas.

Zn5(BTA)6(TDA)2 - A ROBUST HIGHLY INTERPENETRATED METAL-ORGANIC FRAMEWORK CONSTRUCTED FROM PENTANUCLEAR CLUSTERS FOR SELECTIVE SORPTION OF GAS MOLECULES

Disclosed herein are highly interpenetrated robust metal-organic frameworks having the repeat unit Zn 5 (BTA) 6 (TDA) 2 , useful for applications such as selective gas storage, selective gas sorption and/or separation, and gas detection.

Compositions and Methods for Detecting Food-Borne Pathogens

The present invention provides formulations and methods for isolating food-borne pathogens from a great variety of food matrices. Methods for isolating microorganisms from clinical and environmental specimens are also disclosed. The invention also concerns methods for rapid and efficient isolation of sufficiently pure DNA from small amounts of various pathogenic microorganisms, which then can be used, according to the methods of the instant invention, for selective identification of a live pathogenic microorganism present in a sample from which the microorganism was isolated. The methods of the instant invention are also useful for identification of new pathogenic microorganisms, diagnostics of food-borne illnesses, treatment of food-borne diseases and quality control of food items offered for sale to consumers. 1. A composition for purification of a microorganism from a sample , said composition comprising activated charcoal coated with bentonite.2. The composition of claim 1 , in which the ratio of bentonite to activated charcoal is in the range from about 1:2 to about 1:20.3. The composition of claim 1 , wherein said sample is selected from the group consisting of a food sample claim 1 , human tissue claim 1 , human fluids claim 1 , animal tissue claim 1 , animal fluids claim 1 , plant tissue claim 1 , clinical specimen and environmental specimen.4. A method for preparing activated charcoal coated with bentonite comprising the following steps:washing activated charcoal powder with deionized water;preparing a suspension of bentonite in deionized water;mixing the washed activated charcoal powder with the bentonite suspension; anddrying the mixture to obtain activated charcoal coated with bentonite.5. The method of claim 4 , wherein mixing is performed by shaking the mixture for about 12 hours at about 37° C.6. The method of claim 4 , wherein drying is performed for about 30 minutes to about 48 hours at a temperature of about 50° C. to about 100° C.7. A method of ...

Polymeric complex supporter with zero-valent metals and manufacturing method thereof

A zero-valent metal polymeric complex supporter (ZVM-PCS) is disclosed. The PCS possesses porous surface and internal coralloid-like channel structure that can accommodate high amount of iron-containing materials and derivatives thereof. The surface pore size, porosity, hydrophilicitv, and internal coralloid-like channel structure of PCS can be tailored through the manufacturing process, with which PCS can be functioned as a regulator for the releasing of produced hydrogen, and also control the adsorption and reactions toward heavy metals and chlorinated volatile organic compounds in water. The hydrogen released from the ZVM-PCS can be applied to anaerobic bioremediation. Moreover, the ZVM-PCS can be filter materials that can be installed in a column or any storage for water and wastewater treatment, or even in a groundwater cut-off barrier for the cleanup of contamination. While the ZVM-PCS is synthesized as a film without surface openings, it can be used as the electromagnetic interference (EMI) shielding material.

ELECTROSPUN CACTUS MUCILAGE NANOFIBERS

Novel electrospun nanofibers and nanofibrous membranes, methods of manufacturing the same, and methods of using the same are provided. The nanofibers include a cactus mucilage, such as mucilage from . An organic polymer can be added to the cactus mucilage before electrospinning The nanofibrous membranes can be used in water filtration. 1. An electrospun nanofiber , comprising a cactus mucilage.2Opuntia ficus-indica. The electrospun nanofiber according to claim 1 , wherein the cactus mucilage is (Ofi) mucilage.3. The electrospun nanofiber according to claim 2 , further comprising an organic polymer.4. The electrospun nanofiber according to claim 3 , wherein the organic polymer is polyvinyl alcohol (PVA).5. The electrospun nanofiber according to claim 1 , further comprising an organic polymer claim 1 , wherein the organic polymer is PVA claim 1 , chitosan claim 1 , polyethylene glycol (PEG) claim 1 , or poly lactic acid (PLA).6. A nanofibrous membrane claim 1 , comprising at least one electrospun nanofiber according to .7. The nanofibrous membrane according to claim 6 , wherein the cactus mucilage is Ofi mucilage.8. The nanofibrous membrane according to claim 6 , wherein the at least one electrospun nanofiber further comprises an organic polymer claim 6 , wherein the organic polymer is PVA claim 6 , chitosan claim 6 , PEG claim 6 , or PLA.9. A method of producing an electrospun nanofiber claim 6 , comprising:forming an electrospinning solution comprising a cactus mucilage and an organic polymer; andelectrospinning the electrospinning solution to form the electrospun nanofibril.10. The method according to claim 9 , wherein forming the electrospinning solution comprises:dissolving the cactus mucilage in a first solvent to form a first solution;dissolving the organic polymer in a second solvent to form a second solution; andcombining the second solution and the first solution to form the electrospinning solution.11Opuntia ficus-indica. The method according to claim 9 , ...

Covering and method for trapping of emissions from surfaces

The present invention discloses a covering for placement on a surface, such as a wall on the inside of a house, for reduction or prevention of a singularity or a plurality of emissions, such as harmful emissions, released from the surface. The covering comprises a trapping agent and a carrier for retaining and supporting the trapping agent, such that the trapping agent can trap the singularity or plurality of emissions without being released from the carrier. The trapping agent is a substantially irreversible trapping agent independently selected from one or several of the group consisting of absorbing agents and adsorbing agents, such that the trapping agent is capable of fully or partly trapping the singularity or plurality of emissions substantially irreversibly by absorption or adsorption, or a combination of absorption and adsorption. The covering may further comprise a semi-permeable barrier. Methods for use and manufacturing of the covering are also disclosed.

NOVEL CHELATOR AND USE THEREOF

The present invention relates to dimeric pentadentate chelators with exceptionally strong binding of metal ions, for detection, immobilization and purification of biomolecules. Dimeric chelators offer a cooperativity of binding of two adjacent immobilized metal ions simultaneously to a histidine-tagged biomolecule, which gives advantageous properties regarding strength of binding compared to a corresponding monomer chelator. In addition, a dimer increases the selectivity (ease of separation) against non-tagged biomolecules with low metal-ion affinity. 2. The dimeric pentadentate chelator of claim 1 , wherein Sc comprises three functional groups in its structure and has the following general formula: (Z)-Sca-Wbefore coupling to PD claim 1 , wherein Zand Ware selected from —OH claim 1 , —SH or —OCHCH═CH claim 1 , —COH claim 1 , —NHor —NH— claim 1 , —N claim 1 , CN claim 1 , OTs claim 1 , OMs claim 1 , Cl claim 1 , Br claim 1 , —CHO claim 1 , —C≡CH or epoxide groups claim 1 , such that they can be functionalized/derivatized in an orthogonal fashion claim 1 , and Sca is a straight claim 1 , branched or cyclic configuration of 2-100 atoms comprising C claim 1 , N claim 1 , O claim 1 , S and H.3. The dimeric pentadentate chelator of claim 1 , wherein Sc comprises two amine functions in its structure.4. The dimeric pentadentate chelator of claim 1 , wherein Sc comprises three amine functions in its structure and most preferably is derived from diethylentriamine.6. The dimeric pentadentate chelator claim 5 , wherein the spacer Sp1 is derived from 6-amino hexanoic acid.8. The dimeric pentadentate chelator of claim 7 , wherein Q is a solid phase comprising a natural or synthetic polymer.9. The dimeric pentadentate chelator of claim 7 , wherein the solid phase is a porous chromatographic support.10. The dimeric pentadentate chelator of claim 8 , wherein Q is made of a cross-linked carbohydrate material selected from the group consisting of agarose claim 8 , agar claim 8 , ...

MULTICAPILLARY MONOLITH

The invention relates to a monolithic porous material made of amorphous silica or activated alumina, comprising substantially rectilinear capillary channels that are parallel to one another, wherein: 1. A monolithic porous material based on amorphous silica or activated alumina , comprising substantially rectilinear capillary channels parallel to one another , wherein:the channels have a substantially uniform cross-section relative to each other,the cross-section of each channel is regular over its entire length,the channels pass through the material from end to end,the length of the channels is equal to or more than 10 mm.2. The material of claim 1 , wherein the standard deviation of the diameter of the channels is less than 30% of the diameter claim 1 , preferably less than 5% thereof.3. The material claim 1 , having a relative volume of capillary channels that is less than 90%.4. The material of claim 1 , wherein the thickness of the wall between two adjacent channels claim 1 , in its narrowest part claim 1 , is less than one half of their diameter.5. The material of claim 1 , wherein the capillary channels have a diameter of between 0.1 and 1.5 micrometer.6. The material of claim 1 , wherein the capillary channels have a diameter greater than 50 μm.7. The material of claim 1 , formed of amorphous silica surface-modified by a silane.8. The material of claim 1 , based on an alumina γ claim 1 , χ claim 1 , κ claim 1 , η or θ.9. A chromatographic column whose packing comprises at least one monolithic porous material according to .10. An axial claim 1 , continuous annular chromatographic apparatus wherein the packing comprises at least one monolithic porous material according to .11. A radial claim 1 , continuous annular chromatographic apparatus wherein the packing comprises at least one monolithic porous material according to .12. A process for preparing a monolithic porous material based on amorphous silica or activated alumina comprising substantially rectilinear ...

Layered Solid Sorbents For Carbon Dioxide Capture

A solid sorbent for the capture and the transport of carbon dioxide gas is provided having at least one first layer of a positively charged material that is polyethylenimine or poly(allylamine hydrochloride), that captures at least a portion of the gas, and at least one second layer of a negatively charged material that is polystyrenesulfonate or poly(acryclic acid), that transports the gas, wherein the second layer of material is in juxtaposition to, attached to, or crosslinked with the first layer for forming at least one bilayer, and a solid substrate support having a porous surface, wherein one or more of the bilayers is/are deposited on the surface of and/or within the solid substrate. A method of preparing and using the solid sorbent is provided.

Silica containing basic sorbent for acid gas removal

An acid gas sorbent composition is disclosed. The composition comprises a compound having the following formula: (SiO 2 ) x (OH) y F.B wherein F optionally exists and said F is at least one of the following: a functionalized organosilane, a sulfur-containing organosilane, or an amine-containing organosilane; and wherein B is a hygroscopic solid at a preferred water to solid molar ratio of about 0.1 to about 6, and more particularly, B is a basic inorganic solid including, but not limiting to, alkali or alkali-earth metal oxides, hydroxides, carbonates, or bicarbonates, containing at least one of the following metal cations: calcium, magnesium, strontium, barium, sodium, lithium, potassium, cesium, lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, dysprosium, scandium, ytterbium, yttrium, or erbium; wherein the molar ratio of y/x is equal to about 0.01 to about 0.5.

Fibers of Polymer-Wax Compositions

Disposable article that include fibers formed from compositions comprising thermoplastic polymers and waxes are disclosed, where the wax is dispersed throughout the thermoplastic polymer.

Catalytic adsorbents obtained from municipal sludges, industrial sludges, compost and tobacco waste and process for their production

Industrial waste derived adsorbents were obtained by pyrolysis of sewage sludge, metal sludge, waste oil sludge and tobacco waste in some combination. The materials were used as media to remove hydrogen sulfide at room temperature in the presence of moisture. The initial and exhausted adsorbents after the breakthrough tests were characterized using sorption of nitrogen, thermal analysis, XRD, ICP, and surface pH measurements. Mixing tobacco and sludges result in a strong synergy enhancing the catalytic properties of adsorbents. During pyrolysis new mineral phases are formed as a result of solid state reaction between the components of the sludges. High temperature of pyrolysis is beneficial for the adsorbents due to the enhanced activation of carbonaceous phase and chemical stabilization of inorganic phase. Samples obtained at low temperature are sensitive to water, which deactivates their catalytic centers.

Inorganic/Organic Hybrid Totally Porous Metal Oxide Particles, Methods For Making Them And Separation Devices Using Them

The present invention is a process for making an inorganic/organic hybrid totally porous spherical silica particles by self assembly of surfactants that serve as organic templates via pseudomorphic transformation. 122-. (canceled)24. The totally porous particles of claim 23 , wherein the totally porous particles exhibit at least one X-ray diffraction peak between 0.01° and 10° of the 2θ scan range.25. The totally porous particles of claim 23 , wherein M is Si.26. The totally porous particles of claim 23 , wherein Ris independently selected in each instance from methyl or ethyl and Ris selected from methylene claim 23 , ethylene or 1 claim 23 ,2-benzylene.27. (canceled)28. (canceled)29. The totally porous particles of claim 23 , wherein the totally porous particles are created by reacting silica claim 23 , titania or zirconia particles with an organic metal alkoxide.30. The totally porous particles of claim 23 , wherein the median size of the totally porous particles is from about 0.5 μm to about 10 μm.31. The totally porous particles of claim 23 , wherein the pore size ranges from about 60 Å to about 800 Å.32. The totally porous particles of claim 23 , wherein the specific surface area of the totally porous particles is from about 5 m/g to about 300 m/g.33. (canceled)34. (canceled)36. The totally porous particles of claim 35 , wherein the totally porous particles are created by reacting alumina particles with an organic metal alkoxide.37. The totally porous particles of claim 35 , wherein the median size of the totally porous particles is from about 0.5 μm to about 10 μm.38. The totally porous particles of claim 35 , wherein the pore size ranges from about 60 Å to about 800 Å.39. The totally porous particles of claim 35 , wherein the specific surface area of the totally porous particles is from about 5 m/g to about 300 m/g.40. (canceled)41. (canceled)43. Totally porous particles claim 35 , comprising: [{'br': None, 'sub': 2', '3', 'x', 'y, 'sup': 1', '1, 'AlO/(RAlO ...

Absorbent Sheet and Method for Producing Same

The present invention provides a method for producing an absorbent sheet containing absorbent resins, hydrophilic fibers, and hydrophobic fibers, comprising: a dehydration step of dehydrating the absorbent resins and the hydrophilic fibers from a state of being in contact with each other and containing water to obtain composite compositions; and a sheet-forming step of forming a sheet of the composite compositions and the hydrophobic fibers by heating while bringing the composite compositions and the hydrophobic fibers into contact with each other. 156.-. (canceled)57. Composite compositions comprising absorbent resins and hydrophilic fibers ,wherein the absorbent resins and the hydrophilic fibers have bonding therebetween,wherein the composite compositions are surface crosslinked by condensation crosslinking agents,wherein the absorbent resins have acid groups in the side chains andwherein the residual monomer concentration in the absorbent resins with respect to the whole quantity of the absorbent resins is 200 ppm by mass or less.58. A method for producing composite compositions comprising absorbent resins and hydrophilic fibers , comprising;performing heat treatment of the absorbent resins and the hydrophilic fibers being in contact with each other in the presence of water and condensation crosslinking agents,wherein surface strength of the absorbent resins before the heat treatment is 0.1 to 5.5 N.59. The method for producing composite compositions according to claim 58 , further comprising the successive steps of the following (1) to (3) before the heat treatment:(1) a step of adding the condensation crosslinking agent to the absorbent resins,(2) a step of mixing the hydrophilic fibers and the absorbent resins comprising the condensation crosslinking agent, and(3) a step of increasing the amount of water.60. The method for producing composite compositions according to claim 58 , wherein the heating temperature is 100 to 180° C.61. An absorbent sheet claim 57 , ...

MAGNETIC DYE-ADSORBENT CATALYST

New magnetic dye-adsorbent catalyst has been described in this invention, which is the modification of conventional magnetic photocatalyst. The catalyst consists of a composite particle having a core-shell structure, with a magnetic particle as a core and a dye-adsorbent (which may also exhibit photocatalytic activity) as a shell. The shell is made up of 1-dimensional (1-D) nanostructure, which enhances the specific surface-area of the conventional magnetic photocatalyst. The new magnetic dye-adsorbent catalyst removes an organic dye from an aqueous solution via surface-adsorption mechanism; while, the conventional magnetic photocatalyst uses the photocatalytic degradation mechanism. 1. A magnetic dye-adsorbent catalyst comprising:{'sub': 2', '4', '2', '4', '2', '4', '2', '4', '2', '3', '3', '4, '(a) core of a magnetic material selected from the group consisting of CoFeO, MnFeO, NiFeO, BaFeO, FeO, FeO, Fe, Ni; and mixture thereof;'}{'sub': 2', '2, '(b) nanostructure shell of a semiconductor material selected from the group consisting of TiO, ZnO, SnO, ZnS, CdS or other semiconductor material; and'}{'sub': '2', '(c) an insulating layer in between the magnetic core and the nanostructure shell, selected from the group consisting of SiOand an organic polymer.'}2. The magnetic dye-adsorbent catalyst-as claimed in claim 1 , wherein nanostructure shell of the material used ranges between 5-50 wt. % claim 1 , insulating layer ranges between 5-35 wt. % and the remaining being core of a magnetic material.3. The magnetic dye-adsorbent catalyst as claimed in claim 1 , wherein CoFeOis preferred as magnetic core.4. The magnetic dye-adsorbent catalyst as claimed in claim 1 , wherein TiOis preferred as material for nanostructure shell.5. A magnetic dye-adsorbent catalyst as claimed in claim 1 , wherein SiOis preferred as an insulating layer.6. The new magnetic dye-adsorbent catalyst as claimed in claim 1 , wherein organic polymer is selected from the group consisting of amines ...

Radioactive-substance-absorbent, radioactive-substance-absorbent production device, decontaminating method, and bag unit

By fibrillated cellulose fibrillated in fiber form and humidified as a water permeable polymeric substance of botanical origin and a radioactive-substance-absorbent obtained by mixing with zeolite as a granulated inorganic porous crystal, radioactive substances released and spilled in a accident etc. in a nuclear facility etc. may be efficiently and easily collected and removed at a low cost.

SUPERFICIALLY POROUS MATERIALS COMPRISING A SUBSTANTIALLY NONPOROUS CORE HAVING NARROW PARTICLE SIZE DISTRIBUTION; PROCESS FOR THE PREPARATION THEREOF; AND USE THEREOF FOR CHROMATOGRAPHIC SEPARATIONS

Novel chromatographic materials for chromatographic separations, columns, kits, and methods for preparation and separations with a superficially porous material comprising a substantially nonporous core and one or more layers of a porous shell material surrounding the core. The material of the invention is comprised of superficially porous particles and a narrow particle size distrution. The material of the invention is comprised of a superficially porous monolith, the substantially nonporous core material is silica; silica coated with an inorganic/organic hybrid surrounding material; a magnetic core material; a magnetic core material coated with silica; a high thermal conductivity core material; a high thermal conductivity core material coated with silica; a composite material; an inorganic/organic hybrid surrounding material; a composite material coated with silica; a magnetic core material coated with an inorganic/organic hybrid surrounding material; or a high thermal conductivity core material coated with an inorganic/organic hybrid surrounding material. 1. A superficially porous material comprising a substantially nonporous core material and one or more layers of a porous shell material surrounding the core.2. The superficially porous material of claim 1 , wherein the material is comprised of superficially porous particles.3. The superficially porous material of claim 1 , wherein the material is a superficially porous monolith.4. The superficially porous material of claim 2 , wherein the material has a substantially narrow particle size distribution.5. The superficially porous material of claim 2 , wherein the core has a substantially narrow particle size distribution.6. The superficially porous material of claim 2 , wherein the 90/10 ratio of particle sizes is from 1.00-1.55 claim 2 , from 1.00-1.10 claim 2 , from 1.00-1.10 claim 2 , from 1.10-1.55 claim 2 , from 1.10-1.50 or from 1.30-1.45.711-. (canceled)12. The superficially porous material of claim 1 , ...

Iron oxide magnetic nanoparticle, its preparation and its use in desulfurization

The present invention provides a method of preparing an iron oxide magnetic nanoparticle, comprising the steps of: i) reacting a water-soluble ferrous salt with a water-soluble ferric salt in a mole ratio of 1:2 in the presence of a base and a citrate to give an iron oxide particle surface-coated with the citrate (c-MNP); ii) reacting the c-MNP obtained in step (i) with a thiophilic compound to give a thiophilic compound-bounded iron oxide particle surface-coated with the citrate (thiophilic-c-MNP); and iii) modifying the thiophilic-c-MNP obtained in step (ii) using a surfactant for phase transfer of the thiophilic-c-MNP from aqueous phase to organic phase. The present invention also relates to the iron oxide magnetic nanoparticle prepared by the above-mentioned method and the use of the nanoparticle in desulfurization. The iron oxide magnetic nanoparticle of the present invention is capable of effective deep desulfurization.

Superabsorbent Comprising Pyrogenic Aluminum Oxide

Superabsorbents comprising pyrogenic aluminum oxide exhibit a low caking tendency coupled with good absorption properties and rapid water absorption.

Water treatment processes for norm removal

Methods for treating water to remove radium include contacting the water with a magnetic adsorbent comprising manganese oxide(s), and applying a magnetic field to separate the magnetic adsorbent from the water, whereby radium is removed from the water. The methods may additionally include regenerating the magnetic adsorbent, and contacting the water with regenerated magnetic adsorbent. Alternately, calcium and/or strontium may be precipitated as carbonate salts from lime-treated water containing radium and barium without precipitating a significant fraction of the barium or radium; and removing radium from calcium- and strontium-free water by precipitating the barium and radium as carbonate salts. The barium- and radium carbonate precipitate may be redissolved in hydrochloric acid and disposed of by deep-well injection.

Process for Producing Water-Absorbing Polymer Fibres

The present invention relates to a process for producing water-absorbing polymer fibers, especially micro-or nanofibers, by electrospinning process and to fibers obtainable by this process. 1. A process for producing water-absorbing polymer fibres comprising the steps ofa) electrospinning a solution comprising at least one water-soluble polymer and at least one crosslinker andb) crosslinking the fibres.2. The process according to claim 1 , wherein the at least one water soluble polymer is at least partially neutralized.3. The process according to claim 1 , wherein the crosslinker is activated after electrospinning.4. The process according to claim 1 , wherein the solution is aqueous and a polymer concentration in the aqueous medium is between 5% and 60%.5. The process according to claim 2 , wherein the a degree of neutralization is between 10 to 85 mol % claim 2 , preferably between 30 to 75 mol %.6. The process according to claim 1 , wherein an amount of crosslinker is from 0.05 to 5.0% by weight claim 1 , based on the non-neutralized polymer.7. The process according to claim 1 , wherein the crosslinker is activated by heat.8. The process according to claim 7 , wherein the temperature applied is between 60 to 220° C.9. The process according to claim 1 , wherein the at least one water soluble polymer is acidic.10. The process according to claim 1 , wherein the at least one water soluble polymer is basic.11. The process according to claim 9 , wherein the acidic water soluble polymer is polyacrylic acid.12. The process according to claim 10 , wherein the basic water soluble polymer is polyvinylamine.13. Water-absorbing polymer fibres obtained by a process according to .14. The fibres according to claim 13 , which have a diameter not greater than 3 μm.15. The fibres according to claim 13 , which have a diameter not greater than 1 μm.16. The fibres according to claim 13 , which have a diameter not greater than 0.3 μm.17. The fibres according to claim 13 , which have a ...

WATER ABSORBENT RESIN AND METHOD FOR PRODUCING SAME

Object 1. A water-absorbent resin in the form of a secondary particle in which primary particles having an aspect ratio of 1.1 to 200 and a median particle size (d) of 50 to 600 μm are agglomerated ,the secondary particle having an aspect ratio of 1.0 to 3.0 and a median particle size (D) of 100 to 2,000 μm.2. The water-absorbent resin according to claim 1 , wherein the water-absorbent resin has a particle size uniformity of 1.0 to 2.2.3. The water-absorbent resin according to claim 1 , wherein the water-absorbent resin has a flow index of 70 to 200 and an index of adhesion to fibers of 50 to 100.4. The water-absorbent resin according to claim 1 , wherein the primary particles have a form comprising a curved surface.5. The water-absorbent resin according to produced by using a reversed phase suspension polymerization method comprising steps 1 and 2 described below:(1) step 1, in which a water-soluble ethylenically unsaturated monomer is subjected to a polymerization reaction in the presence of a thickener and a dispersion stabilizer to form a slurry in which primary particles are dispersed, and(2) step 2, in which the slurry obtained in step 1 is cooled to precipitate the dispersion stabilizer, and then a water-soluble ethylenically unsaturated monomer is further added to perform a polymerization reaction, thereby agglomerating the primary particles dispersed in the slurry to form the water-absorbent resin in the form of a secondary particle.6. An absorbent material comprising the water-absorbent resin according to and a hydrophilic fiber.7. An absorbent article including the absorbent material according to between a liquid-permeable sheet and a liquid-impermeable sheet.8. A method for producing a water-absorbent resin comprising a secondary particle according to a reversed phase suspension polymerization method including steps 1 and 2 described below:(1) step 1, in which a water-soluble ethylenically unsaturated monomer is subjected to a polymerization reaction in ...

SHEET-SHAPED GAS ADSORBENT AND INSULATING BODY USING SAME

A sheet-shaped gas adsorbent according to the present invention is composed of at least a thermoplastic resin and copper ion-exchanged ZSM-5 type zeolite (), and typically represented by, for example, a single layer sheet-shaped gas adsorbent (), which is configured of dispersing the copper ion-exchanged ZSM-5 type zeolite () in the thermoplastic resin sheet (). Also, the insulating body according to the present invention comprises a sheet-shaped gas adsorbent having the aforementioned configuration, and typically represented by, for example, a configuration, in which a core member and a sheet-shaped gas adsorbent are covered with a sheath member. 1. A sheet-shaped gas adsorbent ,composed of at least: a thermoplastic resin; and ZSM-5 (Zeolite Socony Mobil-#5) type zeolite configured by an ion exchange with copper ion.2. The sheet-shaped gas adsorbent according to claim 1 ,wherein a blending quantity of said ZSM-5 type zeolite configured by the ion exchange with copper ion may be equal to or lower than 40 parts by weight (pbw) over 100 pbw of said thermoplastic resin.3. The sheet-shaped gas adsorbent according to claim 1 ,wherein said thermoplastic resin is blended with at least said ZSM-5 type zeolite and is thermally formed to a sheet-like shape, andwherein the temperature of the thermoplastic resin in said thermally forming is equal to or lower than a heating upper limit temperature, which is higher than the softening point of the thermoplastic resin by 60 degrees C.4. The sheet-shaped gas adsorbent according to claim 3 ,wherein said ZSM-5 type zeolite configured by the ion exchange with copper ion is subjected to a thermal drying processing in advance before being blended to said thermoplastic resin and thermally formed to the sheet-like shape.5. The sheet-shaped gas adsorbent according to claim 3 ,wherein said ZSM-5 type zeolite configured by the ion exchange with copper ion is subjected to a vacuum thermal processing in advance before being blended to said ...

Organic templated nanometal oxyhydroxide

Disclosed are granular composites comprising a biopolymer and one or more nanometal-oxyhydroxide/hydroxide/oxide particles, along with methods for the preparation and use thereof.

NITROGEN-CONTAINING ACTIVATED CARBON MATERIAL

An activated carbon material for removing a contaminant from a liquid. The activated carbon material can be a plurality carbon grains that have a pore volume of approximately 0.1 milliliters per gram (mL/g) in the range of less than about 15 angstroms in width. The carbon grains can also have or contain a nitrogen-containing species having a concentration of more than 2 atomic percent nitrogen. A plurality of the carbon grains can be used to make a contactor that is operable to remove or reduce perchlorate having a concentration of 20 parts per billion (ppb) to less than 4 ppb from 4,500 bed volumes of water with the nitrogen-containing species leaching off of the carbon grains less than 0.1 mg/L. The activated carbon material can also be electrochemically regenerated. 1. An activated carbon material comprising:a plurality of carbon grains, where said plurality of carbon grains are operable to exhibit a current change that spans more than about 0.5 amps per gram of carbon grains from the highest-to-lowest points in a voltammogram cycle, while the electric potential spans less than 2.3 volts from the most positive to most negative points, as measured by a Cyclic Voltammetry protocol; and provided that the said plurality of carbon grains will sorb more than about 2.5 mg of oxyanion per gram of said carbon grains when the initial concentration is 10 mg/L of the oxyanion in deionized water, and 0.02 grams of said carbons grains are mixed in 23 mL water, per an Adapted Batch Adsorption Isotherm protocol.2. The activated carbon material of claim 1 , wherein the oxyanion used in an Adapted Batch Adsorption Isotherm protocol is perchlorate or sulfate claim 1 , and wherein said carbon grains will sorb more than about 20 mg of oxyanion per gram of said carbon grains.3. The activated carbon material of claim 1 , wherein said plurality of carbon grains are operable to exhibit a current change that spans more than about 1.0 amps per gram of carbon material when the electric ...

METHOD FOR PRODUCING POROUS PARTICLES, POROUS PARTICLES, ADSORBENT BODY, AND METHOD FOR PURIFYING PROTEIN

The objective of the present invention is to provide a method for easily producing a porous cellulose particle which can be used as an adsorbent for various substances in a safe manner without using a highly toxic solvent such as a calcium thiocyanate solution. In addition, the objective of the present invention is to provide a porous particle produced by the production method, an adsorbent which contains the porous particle and by which a highly pure protein can be efficiently purified in a safe manner, and a method for purifying a protein by using the adsorbent. The method for producing a porous particle according to the present invention is characterized in comprising the steps of preparing a solution containing cellulose and an ionic liquid; preparing a dispersion by dispersing the obtained cellulose solution into a liquid, wherein the liquid is not compatible with the ionic liquid; and coagulating the dispersion by bringing into contact with an alcohol or an alcohol aqueous solution in order in order to obtain the porous particle. 1. A method for producing a porous particle , comprising the steps of:preparing a solution containing cellulose and an ionic liquid;preparing a dispersion by dispersing the obtained cellulose solution into a liquid, wherein the liquid is not compatible with the ionic liquid; andcoagulating the dispersion by bringing into contact with an alcohol or an alcohol aqueous solution in order to obtain the porous particle.2. The production method according to claim 1 , wherein water and/or an alcohol is added and an amount of the water and/or alcohol to be added is adjusted to be not less than 2 wt % and not more than 20 wt % relative to a total amount with the ionic liquid in the step for preparing the cellulose solution.3. The production method according to claim 1 , wherein a temperature of the cellulose solution is adjusted to be not less than 0° C. and not more than 70° C.4. The production method according to claim 1 , wherein the ...

Titanium dioxide-based hybrid ion-exchange media

A titanium dioxide-based hybrid ion-exchange media including anatase titanium dioxide nanoparticles supported by an ion-exchange resin for removing strong acid ions and oxo-anions from water. The titanium dioxide-based hybrid ion-exchange media is prepared in situ by combining ion-exchange media with a TiO 2+ precursor solution to form a mixture and heating the mixture to yield the hybrid ion-exchange media.

PARTICULATE WATER-ABSORBING AGENT AND PRODUCTION METHOD FOR THE SAME

Provided is a water-absorbing agent having enhanced performance in both the centrifuge retention capacity and the absorption against pressure (particularly, the vertical diffusion absorption amount) of a water-absorbing resin, and also, a water-absorbing agent which can provide an absorbent core having a large absorption amount in a diaper, having improved diffusibility and liquid permeability, and having a smaller re-wet amount, is provided at low cost. 1. A particulate water-absorbing agent comprising a surface-crosslinked polyacrylic acid (salt)-type water-absorbing resin as a main component , and comprising at least one spacer selected from a polycation and water-insoluble fine particles ,the particulate water-absorbing agent satisfying an free swell capacity (FSC) of 55 to 65 [g/g], an absorption against pressure (AAP—4.83 kPa) of 20 to 30 [g/g], and a vertical diffusion absorption amount under pressure (VDAUP—4.83 kPa) of 30 to 80 g.2. The particulate water-absorbing agent according to claim 1 , wherein the polycation is a polyamine polymer having a molecular weight of 1 claim 1 ,000 or greater.3. The particulate water-absorbing agent according to claim 2 , wherein the content of the polyamine polymer is greater than or equal to 0.001 parts by weight and less than 0.3 parts by weight claim 2 , relative to 100 parts by weight of the water-absorbing resin.4. The particulate water-absorbing agent according to claim 1 , wherein the polycation is a water-soluble polyvalent metal cation.5. The particulate water-absorbing agent according to claim 4 , wherein the content of the water-soluble polyvalent metal cation is 0.001 parts to 3 parts by weight relative to 100 parts by weight of the water-absorbing resin.6. The particulate water-absorbing agent according to claim 1 , wherein the water-insoluble fine particles are inorganic fine particles.7. The particulate water-absorbing agent according to claim 1 , wherein the content of the water-insoluble fine particles is 0 ...

Non-visible activated carbon in absorbent materials

The present invention teaches an absorbent material with powdered activated carbon which is substantially light-colored without using color masking agents or hiding. This invention addresses the need in the field for an absorbent material with improved odor-controlling properties, that maintains such properties for longer periods of time and where the absorbent material maintains a light-colored appearance without the addition of color-masking agents. Suitable methods for creating the absorbent materials include a pan agglomeration process, a high shear agglomeration process, a low shear agglomeration process, a high pressure agglomeration process, a low pressure agglomeration process, a rotary drum agglomeration process, a pan agglomeration process, a roll press compaction process, a pin mixer process, a dry blending process, a spray coating process, an extrusion process, a pelletizing process and a fluid bed process.

POROUS BODY AND PRODUCTION METHOD THEREFOR

The present invention provides a porous material which has continuous pores and comprises a polymethyl methacrylate as a main component, wherein the continuous pores have a diameter of 0.001 μm to 500 μm and at least one surface of the porous material has a porosity of 10% to 80%; a separation membrane composed of the same; an adsorbent composed of the same; and a method production of the same. A porous material whose surface porosity and pore diameter are each controlled in a specific range can be obtained. The porous material has a fine and uniform porous structure in which the pore diameter can be controlled in the order of nanometers to micrometers; therefore, it can be advantageously used as a separation membrane such as a blood component separation membrane of an artificial kidney or the like or as an adsorbent. 1. A porous material , which has continuous pores and comprises a polymethyl methacrylate as a main component , wherein said continuous pores have a diameter of 0.001 μm to 500 μm and at least one surface of said porous material has a porosity of 10% to 80%.2. The porous material according to claim 1 , which comprises an isotactic polymethyl methacrylate at a ratio of less than 10% by weight.3. The porous material according to claim 1 , wherein claim 1 , in a curve of a graph which is obtained by Fourier transformation of a micrograph taken for a square field having a side length of 10 times to 100 times of said pore diameter of said porous material and plots the wavenumber on the abscissa and the strength on the ordinate claim 1 , the half value width of a peak claim 1 , (a) claim 1 , and the maximum wavelength of said peak claim 1 , (b) claim 1 , satisfies a condition claim 1 , 0<(a)/(b)≦1.2.4. The porous material according to claim 1 , wherein claim 1 , when the amount of a repeating unit rendered by at least one monomer selected from methacrylic acids claim 1 , methacrylic acid esters composed of a methacrylic acid and a hydrocarbon group having 2 ...

Porous Spherical Titanium Dioxide

A particulate porous spherical titanium dioxide has a TiOcontent of at least 99.0% by weight, a particle size din the range of 30 to 350 μm, a tight particle size distribution (B 90/10) in the region of a maximum of 120 um, a pore diameter of 1 to 30 nm, a pore volume of at least 0.1 cm/g, and a surface area of 30 to 300 m/g (BET). 1. A particulate porous spherical titanium dioxide , comprising:{'sub': '2', 'a TiOcontent of at least 99.0%by weight and having'}{'sub': '50', 'a particle size din the range of 30 to 350 μm,'}a tight particle size distribution (B 90/10) in the region of a maximum of 120 μm,a pore diameter of 1 to 30 nm,{'sup': '3', 'a pore volume of at least 0.1 cm/g, and'}{'sup': '2', 'a surface area of 30 to 300 m/g (BET).'}2. A particulate porous spherical titanium dioxide according to with a particle size din the range of 40 to 250 μm.3. A particulate porous spherical titanium dioxide with a pore size in the range of 1 to 30 nm.4. A process for the production of a particulate porous spherical titanium dioxide according to which includes the step of introducing an aqueous suspension with a content of 1-50% by weight of finely divided claim 1 , highly surface area-rich titanium dioxide into a spray tower claim 1 , wherein the conveyor speed of the suspension claim 1 , the nozzle shape claim 1 , the temperature and the air speed in the spray drier are so selected that individually separated/individual droplets of the suspension claim 1 , that is to say without contact with adjacent droplets claim 1 , of a size of 700 to 1200 μm claim 1 , are introduced into the spray tower and dried.5. A process for the production of a particulate porous spherical titanium dioxide according to in which the spray drier is operated in a fountain configuration.6. A process for the production of a particulate porous spherical titanium dioxide according to in which the finely divided claim 4 , highly surface area-rich titanium dioxide used has a number of free hydroxyl ...

POROUS INORGANIC OXIDE PARTICLES AND METHODS OF MAKING AND USING THE SAME

Porous inorganic oxide particles, such as porous silica particles, and compositions containing porous inorganic oxide particles are disclosed. Methods of making porous inorganic oxide particles and methods of using porous inorganic oxide particles are also disclosed. 1. A method of making porous inorganic oxide particles , said method comprising the steps of:forming precipitated inorganic oxide particles within a reaction mixture while mixing under high shear conditions;separating the precipitated inorganic oxide particles from liquid within the reaction mixture;washing the precipitated inorganic oxide particles to produce washed precipitated inorganic oxide particles; andrapid drying the washed precipitated inorganic oxide particles to form dried porous inorganic oxide particles.2. The method of claim 1 , wherein said forming step comprises:introducing inorganic oxide particle-forming reagents into a reaction vessel, while mixing under high shear conditions, for a first length of time so as to result in a first reaction mixture;following the first length of time, halting introduction of inorganic oxide particle-forming reagents into the reaction vessel while continuing said mixing under high shear dispersion force for a second length of time;following the second length of time, introducing the inorganic oxide particle-forming reagents into the reaction vessel, while mixing under high shear, for a third length of time so as to result in a second reaction mixture; andfollowing the third length of time, acidifying the second reaction mixture under high shear dispersion force so as to reduce a pH of the second reaction mixture to about 4.0 resulting in a third reaction mixture.3. The method of claim 2 , wherein the inorganic oxide particle-forming reagents comprise alkali metal silicate and sulfuric acid.4. The method of claim 2 , wherein said mixing under high shear comprises utilizing a high shear disintegrator in a bypass mode to circulate the inorganic oxide ...

ABSORBENT MULTILAYER COATING SYSTEM

The invention relates to a peelable multilayer coating system comprising a) a peelable coating layer and b) an absorbent top coating layer pigmented above the critical pigment volume concentration, and wherein the pigment comprises mesoporous inorganic particles. 1. A peelable multilayer coating system comprisinga) a peelable coating layer andb) an absorbent top coating layer pigmented above the critical pigment volume concentration, and wherein the pigment comprises mesoporous inorganic particles.2. The peelable multilayer coating system according to claim 1 , wherein the mesoporous inorganic particles are mesoporous silica particles.3. The peelable multilayer coating system according to claim 1 , wherein the pigment consists essentially of mesoporous inorganic particles.4. The peelable multilayer coating system according to claim 1 , wherein the mesoporous inorganic particles have an oil absorption value of at least 100.5. The peelable multilayer coating system according to claim 1 , wherein layer a) and layer b) have a common layer boundary.6. The peelable multilayer coating system according to claim 1 , wherein the peelable coating layer a) comprises solid particles of an amino resin based polymer.7. A process of temporary protection of a substrate from a contaminant claim 1 , comprising the steps ofa) applying to the substrate a multilayer coating system comprising a peelable coating layer and an absorbent top coating layer pigmented above the critical pigment volume concentration, and wherein the pigment comprises mesoporous inorganic particles, andb) exposing the substrate to a contaminant wherein at least a part of the contaminant is absorbed in the absorbent top coating layer.8. The process according to claim 7 , further comprising the additional step ofc) removing the multilayer coating system from the substrate by peeling.9. The process according to claim 7 , wherein the peelable coating layer is prepared from an aqueous coating composition.10. The ...

Aerogels and methods of making same

Provided in one embodiment is a method of making an aerogel, comprising: (A) increasing a concentration of a suspension comprising a gel precursor under a condition that promotes formation of a gel, wherein the gel precursor comprises particulates having an asymmetric geometry; and (B) removing a liquid from the gel to form the aerogel, wherein the aerogel and the gel have substantially the same geometry. An aerogel comprising desirable properties are also provided.

Carbon Composite Materials for Separations

A composite particulate material useful in analytical separations processes includes a carbon coating deposited through chemical vapor deposition on a substantially metal-free inorganic oxide particle. The resultant laminate material may be tuned for desired sorption rates and selectivities with respect to analytes of interest. 1. A composite particulate material for use as a sorption media in high-pressure liquid chromatography , said composite particulate material comprising a pyrolytic carbon coating deposited on an inorganic oxide particle , wherein said composite matriculate material is substantially metal-free.2. A composite particulate material as in wherein said inorganic oxide particle is Type B silica.3. A composite particulate material as in wherein said inorganic oxide particle has a maximum cross-sectional dimension of 50 micrometers.4. A composite particulate material as in comprising 1-50 weight % carbon.5. A composite particulate material as in wherein said inorganic oxide particle is porous claim 1 , with a mean pore diameter of 10-500 angstroms.6. A composite particulate material as in which is free from exposed silanol groups.7. A composite particulate material as in wherein said inorganic oxide particle has a surface area of at least 10 m/g.8. A composite particulate material as in wherein said carbon coating covers between 5-70% of said surface area of said particle.9. A method for producing a sorption media for high-pressure liquid chromatography claim 7 , said method comprising:(a) loading a reactor with particulate material;(b) elevating a reactor temperature to at least 500° C. and a reactor pressure to greater than 760 mm Hg;(c) providing a carbon source that is thermostatted to a source temperature of at least 25° C.; and(d) introducing to said heated reactor a vapor from said carbon source to deposit a coating of carbon on said particulate material, the coated particulate material forming a composite.10. A method as in wherein said ...

SUPERFICIALLY POROUS MATERIALS COMPRISING A SUBSTANTIALLY NONPOROUS HYBRID CORE HAVING NARROW PARTICLE SIZE DISTRIBUTION; PROCESS FOR THE PREPARATION THEREOF; AND USE THEREOF FOR CHROMATOGRAPHIC SEPARATIONS

The present invention provides novel chromatographic materials, e.g., for chromatographic separations, processes for its preparation and separations devices containing the chromatographic material; separations devices, chromatographic columns and kits comprising the same; and methods for the preparation thereof. The chromatographic materials of the invention are chromatographic materials comprising having a narrow particle size distribution. 1. A superficially porous material comprising a substantially nonporous inorganic/organic hybrid core and one or more layers of a porous shell material surrounding the core.2. The superficially porous material of claim 1 , wherein the material is comprised of superficially porous particles.3. The superficially porous material of claim 1 , wherein the material is a superficially porous monolith.4. The superficially porous material of claim 2 , wherein the material has a substantially narrow particle size distribution.5. The superficially porous material of claim 2 , wherein the core has a substantially narrow particle size distribution.6. The superficially porous material of claim 2 , wherein the 90/10 ratio of particle sizes is from 1.00-1.55 claim 2 , from 1.00-1.10 claim 2 , from 1.05-1.10 claim 2 , from 1.10-1.55 claim 2 , from 1.10-1.50 or from 1.30-1.45.711-. (canceled)12. The superficially porous material of claim 1 , wherein the material has chromatographically enhancing pore geometry.13. The superficially porous material of claim 12 , wherein the material has a small population of micropores.19. The superficially porous material of wherein the porous shell material is a porous inorganic/organic hybrid material.20. The superficially porous material of wherein the porous shell material is a porous silica.21. The superficially porous material of wherein the porous shell material is a porous composite material.22. The superficially porous material of comprising more than one layer of porous shell material wherein each layer ...

Substrates for carbon dioxide capture and methods for making same

An absorbent structure for CO 2 capture includes a honeycomb substrate having a plurality of partition walls extending in an axial direction from an inlet end to an outlet end thereby forming a plurality of flow channels. The honeycomb substrate comprises a powder component and a binder that are solidified. The absorbent structure also includes a functional mer group dispersed throughout the powder component of the partition walls of the honeycomb substrate. The functional mer group is positioned in and on the partition walls such that, when a gas stream containing CO 2 flows in the flow channels from the inlet end to the outlet end, the functional mer group absorbs the CO 2 by forming a coordinated bond that forms carbonate, bicarbonate, carbamates, or another coordinated or ionic compound with the CO 2 .

ADDITIVE FOR BINDING THE RESIDUAL MOISTURE IN THE RESIDUE SALT OF A SALT DUMP

The invention provides an additive for binding the residual moisture in the residue salt of a salt heap to reduce the heap water content, wherein the additive has hydraulically and/or pozzolanically setting properties. 1. An additive for binding the residual moisture in the residual salt of a salt dump to reduce the dump water content , whereinthe additive has hydraulically and/or pozzolanically setting properties.2. The additive according to claim 1 , whereinthe additive is predominantly available in a silty form.3. The additive according to claim 1 , whereinash from the combustion of fossil fuels is used as an additive.4. The additive according to claim 1 , whereinsubstances derived from heat treatment and/or combustion processes are used as an additive.5. The additive according to claim 1 , whereinthe proportion of the additive relative to the amount of residual salt amounts to about 0.2 to 4 mass percent.6. A use of an additive according to with hydraulically and/or pozzolanically setting properties for binding the residual moisture in the residual salt of a salt dump.7. A method for binding the residual moisture in the residual salt of a salt dump to reduce the dump water content claim 1 , wherein{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the residual salt is mixed with an additive according to before being deposited onto the salt dump.'} The invention relates to an additive for binding the residual moisture in the residue salt of a salt dump in order to reduce the dump water content, as well as a method for binding the residual moisture in the residue salt and the use of an additive for binding the residual moisture.During processing of raw salts, for instance for potash production, residues accumulate, which consist substantially of salt. Unless it is disposed of in another manner, this residue is dumped. In order to occupy as little ground area as possible and to expose as little surface as possible in relation to the volume of the dump to ...

Kinetic stabilization of magnesium hydride

A hydrogen absorbing and desorbing material formed by co-deposition of magnesium with a catalyst for the kinetic absorption and desorption of hydrogen. A hydrogen absorbing and desorbing material formed of an alloy of magnesium with a catalyst for the kinetic absorption and desorption of hydrogen in which the catalyst for the kinetic absorption and desorption of hydrogen forms a dispersed amorphous or nanocrystalline phase in the magnesium. A hydrogen absorbing and desorbing material having a catalytic surface formed by a process comprising the steps of depositing a layer of tantalum on the hydrogen absorbing and desorbing material and depositing a layer of palladium on the layer of tantalum. A hydrogen absorbing and desorbing material comprises a multilayer film having at least two layers of magnesium and at least two layers of catalyst for the kinetic absorption and desorption of hydrogen, in which the multilayer film comprises alternating layers of magnesium and catalyst.

ORGANOMETALLIC ALUMINUM FUMARATE BACKBONE MATERIAL

Porous metal organic frameworks formed by Alions to which fumarate ions are coordinated to produce a framework structure; shaped bodies comprising such porous metal organic frameworks, and also the preparation and use thereof for the uptake of a substance for the purposes of its storage, controlled release, separation, chemical reaction or as support. 116-. (canceled)17. A porous metal organic framework comprising Alions and fumarate ions , wherein the Alions and the fumarate ions are coordinated in a framework structure , wherein the framework is present as a powder and has a specific surface area of at least 1000 m/g , determined according to the Langmuir method by Nadsorption at 77 K.18. The porous metal organic framework according to claim 17 , wherein an X-ray diffraction pattern (XRD) of the framework has a basic reflection of 8°<2Θ<12°.19. The porous metal organic framework according to claim 17 , wherein the framework structure has an orthorhombic one-dimensional channel structure.20. A shaped body comprising a porous metal organic framework according to .21. The porous metal organic framework according to claim 17 , wherein the powder has a specific surface area of at least 1200 m/g claim 17 , determined according to the Langmuir method by Nadsorption at 77 K.22. The porous metal organic framework according to claim 17 , wherein the powder has a specific surface area of at least 1400 m/g claim 17 , determined according to the Langmuir method by Nadsorption at 77 K.23. The porous metal organic framework according to claim 17 , wherein the powder has a specific surface area of at least 1600 m/g claim 17 , determined according to the Langmuir method by Nadsorption at 77 K.24. The porous metal organic framework according to claim 17 , wherein the powder has a specific surface area of at least 1800 m/g claim 17 , determined according to the Langmuir method by Nadsorption at 77 K.25. The porous metal organic framework according to claim 17 , wherein the powder ...

CARRIER FOR BLOOD COMPONENT ADSORPTION AND BLOOD COMPONENT ADSORPTION COLUMN

A carrier for blood component adsorption includes a water-insoluble carrier composed of a fiber or particle, the water-insoluble carrier having a surface to which a functional group(s) is/are introduced, the functional group(s) containing an acidic functional group selected from the group consisting of the sulfate group, sulfite group and sulfonate group; and containing an amino group; the fiber having a fiber diameter of, or the particle having a particle diameter of, 0.5 to 20 μm. 1. A carrier for blood component adsorption comprising a water-insoluble carrier composed of a fiber or particle , said water-insoluble carrier having a surface to which a functional group(s) is/are introduced , said functional group(s) containing an acidic functional group selected from the group consisting of the sulfate group , sulfite group and sulfonate group; and containing an amino group ,said fiber having a fiber diameter of, or said particle having a particle diameter of, 0.5 to 20 μm.2. The carrier according to claim 1 , wherein said water-insoluble carrier has a porosity of 85 to 98%.3. The carrier according to claim 1 , wherein said water-insoluble carrier has an amount of negative charge of 1.5×10to 1.5×10eq/g.4. The carrier according to claim 1 , wherein said water-insoluble carrier is a fiber having a fiber diameter of 4 to 10 μm.5. The carrier according to claim 1 , wherein said acidic functional group and said amino group are linked together via an alkyl chain.6. The carrier according to claim 5 , wherein said alkyl chain is an alkyl chain having not more than 3 carbon atoms.7. A column for blood component adsorption filled with the carrier for blood component adsorption according to .8. The carrier according to claim 2 , wherein said water-insoluble carrier has an amount of negative charge of 1.5×10to 1.5×10eq/g.9. The carrier according to claim 2 , wherein said water-insoluble carrier is a fiber having a fiber diameter of 4 to 10 μm.10. The carrier according to claim 3 ...

PRECIPITATED SILICA SORBENTS

The present invention is directed to a separation medium comprising rotary dried or spray dried precipitated silica. The silica has a pore surface area P wherein logP>2.2, and the ratio of BET to CTAB is at least 1.0 measured prior to any surface modification of the silica. 1. A separation medium comprising rotary dried or spray dried precipitated silica , said silica having a pore surface area P wherein logP>2.2 , and wherein the ratio of BET to CTAB is at least 1.0 measured prior to any surface modification of the silica.2. The separation medium of wherein the silica has a particle size distribution wherein more than 90 percent of the silica particles have a particle diameter equal to the average particle diameter.3. The separation medium of wherein the silica demonstrates a BET of 20 to 900 m/g.4. The separation medium of wherein the silica demonstrates a BET of 125 to 700 m/g.5. The separation medium of wherein the silica demonstrates a BET of 190 to 350 m/g.6. The separation medium of wherein the silica demonstrates a BET of 351 to 700 m/g.7. The separation medium of wherein the silica demonstrates a CTAB of 20 to 700 m/g.8. The separation medium of wherein the silica demonstrates a CTAB of 120 to 500 m/g.9. The separation wherein the silica demonstrates a CTAB of 170 to 280 m/g.10. The separation medium of wherein the silica demonstrates a CTAB of 281 to 500 m/g.11. The separation medium of wherein the ratio of BET to CTAB is at least 1.1.12. The separation medium of wherein the ratio of BET to CTAB is 1.0-1.5.13. The separation medium of wherein the ratio of BET to CTAB is 1.5-4.0.14. The separation medium of claim 1 , wherein the silica has been surface treated with an anti-fouling moiety selected from polyethylene glycol claim 1 , carboxybetaine claim 1 , sulfobetaine and polymers thereof claim 1 , mixed valence molecules claim 1 , oligomers and polymers thereof and all blends of said species.15. The separation medium of claim 1 , wherein the silica ...

Solid ammonia storage and delivery material

Disclosed is a method for the selective catalytic reduction of NO x in waste/exhaust gas by using ammonia provides by heating one or more salts of formula M a (NH 3 ) n X z , wherein M represents one or more cations selected from alkaline earth metals and transition metals, X represents one or more anions, a represents the number of cations per salt molecule, z represents the number of anions per salt molecule, and n is a number of from 2 to 12, the one or more salts having been compressed to a bulk density above 70% of the skeleton density before use thereof.

POROUS SILICON OXYNITRIDE MATERIALS FOR CHROMATOGRAPHIC SEPARATION AND METHOD OF THEIR PREPARATION

Novel material for chromatographic separations, processes for its preparation, and separation devices containing the chromatographic material. In particular, the novel materials are porous silicon oxynitride materials, which desirably can be surface modified and have enhanced stability at high pH. The novel porous silicon oxynitride material may offer efficient chromatographic separations, and hold great promise as packing material for chromatographic separations. 1. A porous silicon oxynitride material , for chromatographic separation , comprising porous silicon oxynitride particles having a chromatographically-enhancing pore geometry , said particles having an interior area and an exterior surface , said particles having a composition represented by SiON , wherein 0≦x<2 , 0 Подробнее

Adsorbent for carbon dioxide, method of preparing the same, and capture module for carbon dioxide

An adsorbent for carbon dioxide may include an inorganic oxide porous structure having a plurality of mesopores and an active compound bound to the surface of the mesopores. The active compound may be selected from an alkali metal-containing compound, an alkaline-earth metal-containing compound, and a combination thereof. Various example embodiments also relate to a method of preparing the adsorbent for carbon dioxide and a capture module for carbon dioxide including the adsorbent for carbon dioxide.

Preparation method for asphalt-based spherical activated carbon which requires no infusibilization process

The present invention is a preparation method for asphalt-based spherical activated carbon which requires no infusibilization process. Placing coal tar asphalt into a melting device; introducing compressed air of 0.1 MPa-0.5 MPa into the device and stirring until a melting temperature of 280° C.-350° C. is reached; continuing for 2-8 hours until the base material has a softening point of 200° C.-260° C.; after cooling down, pulverizing the base material to obtain asphalt powder. Obtaining 34%-79% by mass of carbon powder, 1%-10% by mass of binder, and 20%-65% by mass of the asphalt powder and then forming spherical particles with a diameter of 0.5 mm-5 mm with the carbon powder, the binder and the asphalt powder at room temperature. Introducing the spherical particles of asphalt directly into an asphalt carbonization furnace for carbonization at a temperature of 600° C.-900° C. under protection of an inert gas to obtain asphalt spherical carbon. Asphalt spherical carbon is subject to activation treatment to obtain asphalt spherical activated carbon. The preparation method of the present invention reduces processing difficulty and production costs significantly.

MIXTURE AND METHOD FOR PRODUCING A FIBER

A mixture for producing a fiber or a molded part contains at least one polymer solution, in particular a cellulose solution, and an adsorbing agent. The mixture includes a removable resisting agent for the adsorbing agent. The polymer solution also can be used as a resisting agent. In order to produce a fiber or a molded part, an adsorbing agent is mixed with a polymer solution, in particular a cellulose solution, where a removable resisting agent is applied to the adsorbing agent before or during the mixing process and wherein the resisting agent is removed after the fiber has been spun or after the molded part has been molded. Alternatively or in addition thereto, a method for producing a fiber or a molded part, an adsorbing agent, in particular activated charcoal, is mixed with a polymer solution, in particular a cellulose solution. 1. A mixture for producing a fiber or a molded part , which contains at least one polymer solution , in particular a cellulose solution , and an adsorption agent , having a removable reserving agent for the adsorption agent.2. The mixture according to claim 1 , wherein the reserving agent is gaseous claim 1 , or gaseous nitrogen.3. The mixture according claim 1 , wherein the reserving agent is paraffin.4. The mixture according claim 1 , wherein the reserving agent is solid.5. The mixture according claim 1 , wherein the reserving agent is liquid.6. The mixture according to claim 1 , wherein the reserving agent is soluble claim 1 , thermally soluble claim 1 , or is soluble in a solvent or is soluble under pressure or in a vacuum.7. The mixture according to claim 1 , wherein the adsorption agent can be selected from the group that consists of activated carbon claim 1 , diamond claim 1 , gold claim 1 , silver claim 1 , ceramic claim 1 , carbon black claim 1 , stone dust and/or mixtures that consist of two or more of these components.8. The mixture according to claim 1 , wherein the mixture contains an organic lubricating agents claim 1 , ...

Lubricant system and method of forming the same

A lubricant system is disclosed that is formed by contacting a fibrous network with oil and/or lubricating fluid having an affinity for the fibrous network. The fibrous network comprises oleophilic fibers having a diameter between 50 nm and 10 microns and a length that is at least times the diameter. In addition, the oleophilic fibers have an affinity for the oil and/or lubricating fluid.

Apparatus for use in a system containing a lubricating fluid and method of forming the same

An apparatus is disclosed for use in a system containing at least one of an oil and a lubricating fluid. The apparatus comprises a surface in need of lubrication during operation of the apparatus, and oleophilic fibers disposed on the surface. The oleophilic fibers have a diameter between 50 nm and 10 microns and a length that is at least 5 times the diameter. In addition, the oleophilic fibers have an affinity for at least one of the oil and the lubricating fluid.

POLYACRYLIC ACID (SALT)-BASED WATER ABSORBENT RESIN, AND METHOD FOR PRODUCTION THEREOF

Provided is a method for producing a polyacrylic acid (salt)-based water absorbent resin, which is a convenient production method for a water absorbent resin for an absorbent suitable for practical use, the water absorbent resin having a reduced amount of residual monomers. Disclosed is a method for producing a polyacrylic acid (salt)-based water absorbent resin, the method comprising a polymerization step of polymerizing an aqueous monomer solution containing acrylic acid (salt) as a main component; a drying step of drying a water-containing gel-like crosslinked polymer obtained in the polymerization step; a surface crosslinking step of surface crosslinking the water absorbent resin under drying or the water absorbent resin which has been dried; and a packaging step of packaging the surface crosslinked water absorbent resin, wherein an iron content in the aqueous monomer solution in the polymerization step is 2 ppm (relative to the monomer(s)) or less, a moisture content of the water absorbent resin in the packaging step is 1% by weight or more, and the method further comprises, after the packaging step, a storage step of storing the packaged water absorbent resin for 3 days or longer. 121-. (canceled)22. A method for producing a polyacrylic acid (salt)-based water absorbent resin , the method comprising:a polymerization step of polymerizing an aqueous monomer solution containing acrylic acid (salt) as a main component;a drying step of drying a water-containing gel-like crosslinked polymer obtained in the polymerization step;a surface crosslinking step of surface crosslinking the water absorbent resin under drying or the water absorbent resin which has been dried; anda packaging step of packaging the surface crosslinked water absorbent resin,wherein an iron content in the aqueous monomer solution in the polymerization step is 2 ppm (relative to the monomer(s)) or less, a moisture content of the water absorbent resin in the packaging step is 1% by weight or more, ...

Process for Producing Surface Postcrosslinked Water-Absorbing Polymer Particles

A process for producing surface postcrosslinked water-absorbing polymer particles, wherein the water-absorbing polymer particles are coated, before, during or after the surface postcrosslinking, with at least one salt of a trivalent metal cation and a glycinate anion.

METHOD FOR PRODUCING WATER-ABSORBENT RESIN

Object 1. A method for producing water-absorbent resin , comprising:(1) Step 1, in which a water-soluble ethylenically unsaturated monomer is subjected to a reversed-phase suspension polymerization in a petroleum hydrocarbon dispersion medium in which a surfactant is dissolved, thereby forming a slurry in which primary particles are dispersed, and(2) Step 2, in which the slurry obtained in Step 1 is cooled to partially precipitate the surfactant, and then a water-soluble ethylenically unsaturated monomer is polymerized in the slurry to agglomerate the primary particles, thereby forming water-absorbent resin,wherein the surfactant is a sucrose fatty acid ester in which the monoester content is 25% by mass or less, the tetraester content is 10% by mass or more, and the content of tetra or higher esters is 30% by mass or less.2. The method according to claim 1 , wherein the petroleum hydrocarbon dispersion medium further comprises at least one polymeric dispersion agent selected from the group consisting of maleic anhydride modified polyethylene claim 1 , maleic anhydride modified polypropylene claim 1 , maleic anhydride modified ethylene propylene copolymers claim 1 , oxidized polyethylene claim 1 , and ethylene acrylic acid copolymers.3. The method according to claim 1 , wherein the water-soluble ethylenically unsaturated monomer is at least one member selected from the group consisting of (meth)acrylic acids and salts thereof.4. Water-absorbent resin obtainable by using the method according to claim 1 , wherein the degree of yellow of thermal discoloration resistance is 20 or less.5. Water-absorbent resin obtainable by using the method according to claim 1 , wherein claim 1 , in a particle size distribution claim 1 , water-absorbent resin having a size more than 850 μm is contained in an amount of 5% by mass or less and water-absorbent resin having a size not more than 180 μm is contained in an amount of 10% by mass or less.6. The method according to claim 2 , ...

SUB-2 MICRON CHIRAL STATIONARY PHASE SEPARATION AGENT

The present invention relates to a porous sub-2 chiral stationary phase agent that provides stability and increased productivity for chiral separation using HPLC and UHPLC methods. It was surprisingly discovered that highly stable and backpressure resistant coated and at least partially covalently bonded chiral stationary phase agents having an average particle diameter less than 2 microns can be obtained by maintaining a pore ratio of from 0.0042 to about 0.010. 1. A covalently bonded chiral stationary phase agent having a particle size less than about 2 microns in diameter , said chiral stationary phase comprising a porous granular carrier and a polysaccharide or derivatized polysaccharide , wherein said porous granular carrier is porous having a particle size between about 1.5 and about 1.9 microns and having an average pore size of from about 50 Angstroms to about 200 Angstroms and that said porous granular carrier has a ratio of pore size/particle size from about 0.0026 to about 0.0133 , wherein the porous granular carrier is covalently bonded to the polysaccharide or derivatized polysaccharide , and wherein the polysaccharide or derivatized polysaccharide is selected from the group consisting of cellulose tris-(3 ,5-methylphenylcarbamate) , cellulose tris-(3-chloro-4-methylphenylcarbamate) , amylose tris-(3 ,5-dimethylphenylcarbamate) , amylose tris-(3-chloro-4-methylphenylcarbamate) , cellulose tris-(4-methylbenzoate) , amylose tris-(4-methylbenzoate) , amylose tris-(4-chloro-3-methylphenylcarbamate) , amylose tris-(5-chloro-2-methylphenylcarbamate) , cellulose tris-(4-chloro-3-methylphenylcarbamate) , and cellulose tris-(5-chloro-2-methylphenylcarbamate) , and wherein the porous granular carrier is selected from the group consisting of silica , alumina , magnesia , titanium oxide , glass , silicate , and kaolin.2. The covalently bonded chiral stationary phase agent of claim 1 , wherein the porous granular carrier has an average pore size of from about 50 ...

SUB-2 MICRON CHIRAL STATIONARY PHASE SEPARATION AGENTS FOR USE WITH SUPERCRITICAL FLUID CHROMATOGRAPHY

The present invention relates to chiral separation column for use with supercritical fluid chromatography (SFC) containing a porous sub-2 chiral stationary phase agent that offered significant savings in run times and solvent use over the more conventional chiral columns using SFC methods. It was surprisingly discovered that SFC columns containing highly stable and backpressure resistant sub-2 micron stationary phase agents which were either coated or at least partially covalently bonded with polysaccharide or derivatized polysaccharide and which have an average particle diameter less than 2 microns can be obtained by maintaining a pore ratio of from 0.0042 to about 0.010 provide improved efficiency. 1. A chiral separation column for use with supercritical fluid chromatography wherein the chiral separation column contains a chiral stationary phase agent which is coated or covalently bonded and has a particle size less than about 2 microns in diameter , said chiral stationary phase agent comprising a porous granular carrier and a polysaccharide or derivatized polysaccharide , wherein said porous granular carrier is porous having a particle size between about 1.5 and about 1.9 microns and having an average pore size of from about 50 Angstroms to about 200 Angstroms and that said porous granular carrier has a ratio of pore size/particle size from about 0.0026 to about 0.0133 , wherein the porous granular carrier is coated with the polysaccharide or derivatized polysaccharide or wherein the porous granular carrier is covalently bonded to the polysaccharide or derivatized polysaccharide , and wherein the polysaccharide or derivatized polysaccharide is selected from the group consisting of cellulose tris-(3 ,5-dimethylphenylcarbamate) , cellulose tris-(3-chloro-4-methylphenylcarbamate) , amylose tris-(3 ,5-dimethylphenylcarbamate) , amylose tris-(3-chloro-4-methylphenylcarbamate) , cellulose tris-(4-methylbenzoate) , amylose tris-(4-methylbenzoate) , amylose tris-(4- ...

WATER-ABSORBING POLYSACCHARIDE AND METHOD FOR PRODUCING THE SAME

A process for producing a polysaccharide superabsorbent particulate including the process steps of bringing into contact a polysaccharide with a polyphosphate or a polyphosphoric acid as crosslinking agent in the presence of water to form a polysaccharide gel drying the polysaccharide gel, comminuting the dried polysaccharide gel to form polysaccharide superabsorbent polymer particles, coating the particles with a polyphosphate or polyphosphoric acid, crosslinking the coated particles, and surface treating the particulate with a metal multivalent salt or an acid. The invention further relates to a polysaccharide superabsorbent polymer particulate obtainable by this process, a water-absorbent polysaccharide, a composite, a process for producing a composite, a composite produced by this process, the use of the polysaccharide superabsorbent particulates or of the composites as well as the use of polyphosphates. 194-. (canceled)95. A polysaccharide superabsorbent polymer particulate comprising:a. a polysaccharide polymer crosslinked with a polyphosphate or polyphosphoric acid as a crosslinking agent to form a polysaccharide polymer gel which is formed into a polysaccharide polymer particulate having a particle size ranging from about 150 μm to about 850 μm;b. a surface crosslinking agent selected from a polyphosphate or polyphosphoric acid forming crosslinks of the surface crosslinking agent and the polysaccharide superabsorbent polymer particulate resulting in a surface crosslinked polysaccharide superabsorbent polymer particulate wherein the level of functional cross links in the vicinity of the surface of the polysaccharide superabsorbent polymer particulate is greater than the level of functional cross links in the interior of the polysaccharide superabsorbent polymer particulate; andc. a post-crosslinking agent selected from a water soluble multivalent metal salt or an acid wherein the water soluble multivalent metal salt includes a metal cation selected from Al, ...