ПРИМЕНЕНИЕ БЕТА-ЦЕОЛИТА В КАЧЕСТВЕ ВЕЩЕСТВА, СВЯЗЫВАЮЩЕГО МУЛЬТИТОКСИНЫ В КОРМЕ ДЛЯ ЖИВОТНЫХ

Изобретение относится к применению вещества, связывающего токсин, содержащего 12 членные кольцевые системы, в качестве кормовой добавки для животных. Вещество, связывающее токсин, содержит Hформу бета-цеолита (HBZ), при этом HBZ имеет размер пор от примерно 1 до 15 Å. Изобретение относится к способу связывания микотоксина, включающий применение композиции, содержащей вышеуказанное вещество, связывающее токсин в корме для животных. Изобретение относится к способу связывания микотоксинов, который включает введение животному композиции, содержащей вышеупомянутое вещество, связывающее токсин в корме для животных, где вещество содержит Hформу бета-цеолита и бета-цеолиты имеют соотношение Si/Al примерно 25. 3 н. и 12 з.п. ф-лы, 10 ил., 5 табл., 10 пр.

НОВЫЙ МИКРОПОРИСТЫЙ КРИСТАЛЛИЧЕСКИЙ МАТЕРИАЛ, ВКЛЮЧАЮЩИЙ МОЛЕКУЛЯРНЫЕ СИТА ИЛИ ЦЕОЛИТ, ИМЕЮЩИЙ ВОСЬМИКОЛЬЦЕВУЮ СТРУКТУРУ ОТКРЫТЫХ ПОР, И СПОСОБЫ ЕГО ПОЛУЧЕНИЯ И ПРИМЕНЕНИЯ

Изобретение относится к гидротермически стабильным микропористым кристаллическим материалам, включающим молекулярные сита или цеолит, имеющий восьмикольцевую структуру открытых пор, такой как SAPO-34 или алюмосиликатный цеолит, к способам их получения и применения. Описан гидротермически стабильный микропористый кристаллический материал, включающий SAPO-34, имеющий размер кристаллов более чем 0,3 микрона, который после воздействия температур от 700 до 900°C в присутствии вплоть до 10% об. водяных паров в течение 16 часов сохраняет по меньшей мере 80% площади своей поверхности и объема микропорового пространства и кислотность по меньшей мере 0,35 ммоль/г. Описан материал для селективного каталитического восстановления оксидов азота мочевиной или аммиаком, содержащий железо и/или медь SAPO-34, имеющий размер кристаллов более чем чем 0,3 микрона и который сохраняет по меньшей мере 80% площади своей поверхности и объема микропорового пространства после воздействия температур вплоть до 900°C ...

Материалы EMM-23, способы их получения и их применение

Изобретение относится к способам получения модифицированных материалов ЕММ-23. Описан способ получения модифицированного трехвалентным элементом материала EMM-23, содержащего композицию Формулы II: X2O3:(m)YO2 (Формула II), включающий объединение композиции Формулы (III): X2O3:(t)YO2 (Формула III), с агентом, содержащим X, с получением материала Формулы II; где m меньше 150, t больше или равен 150, X представляет собой трехвалентный элемент, выбранный из Al и Fe, и Y представляет собой четырехвалентный элемент, являющийся Si, и корректировку pH комбинации из композиции Формулы III и агента, содержащего X, до величины в диапазоне от 2,4 до 2,6. Технический результат – получение материала с улучшенными свойствами. 2 н. и 16 з.п. ф-лы, 13 ил., 20 табл., 7 пр.

СПОСОБЫ С ПРИМЕНЕНИЕМ МОЛЕКУЛЯРНОГО СИТА SSZ-95

Изобретение относится к способу конвертирования углеводородов, способу изготовления легких олефинов, способу изготовления метиламина или диметиламина, способу разделения газов, способу обработки выхлопных газов двигателя, способу восстановления оксидов азота. Во всех способах использовали молекулярное сито. Способ конвертирования углеводородов включает контактирование углеводородного сырья при условиях конвертирования углеводородов с катализатором, который содержит молекулярное сито. Данное молекулярное сито имеет каркасную структуру MTT-типа, молярное отношение оксида кремния к оксиду алюминия от 20 до 70, общий объем микропор между 0,005 и 0,02 см3/г. Причем молекулярное сито, содержащее структурообразующий агент, имеющий отношение кремния к алюминию от 20 до 70, получают следующим способом. Молекулярное сито подвергают стадии предварительного обжига при температуре ниже температуры полного разложения структурообразующего агента в течение времени, достаточного, чтобы преобразовать по ...

ПОЛУЧЕНИЕ ФРАГМЕНТОВ ВОДОРАСТВОРИМОГО ГИДРОЛИЗОВАННОГО КЛИНОПТИЛОЛИТА И НУТРИЦЕВТИЧЕСКИЕ ПРОДУКТЫ, ОСНОВАННЫЕ НА ФРАГМЕНТАХ ВОДОРАСТВОРИМОГО ГИДРОЛИЗОВАННОГО КЛИНОПТИЛОЛИТА

Изобретение относится к композициям фрагментов водорастворимого и биоабсорбируемого клиноптилолита. Композиция содержит водный раствор водорастворимых фрагментов гидролизованного клиноптилолита и витамин С. Композиция имеет рН в диапазоне 3,0–4,5. Фрагменты гидролизованного клиноптилолита присутствуют в количестве 0,35–0,9 мг/мл, а витамин С присутствует в количестве 3,5-6,0 мг/мл. Указанные фрагменты гидролизованного клиноптилолита получены путем гидролиза клиноптилолита цеолита при нагревании до температуры 77-79°С с перемешиванием и встряхиванием в присутствии фосфорной кислоты. Далее разделяют гидролизованый клиноптилолит на жидкую и твердую части путем сифонирования и декантирования, при этом жидкая часть сдержит водорастворимые фрагменты гидролизованного клиноптилолита. Обеспечивается композиция, пригодная для перорального введения и способная абсорбироваться в желудочно-кишечном тракте. 2 н. и 14 з.п. ф-лы, 9 ил., 4 табл.

УЛУЧШЕННОЕ ВВЕДЕНИЕ ВНЕКАРКАСНОГО МЕТАЛЛА В АЛЮМИНОСИЛИКАТНЫЕ ЦЕОЛИТЫ

Изобретение относится к способам получения покрытий. Описан способ получения покрытия из пористого оксида, содержащего алюмосиликатный цеолит с внекаркасным металлом, включающий (i) обеспечение смеси B продуктов, содержащей алюмосиликатный цеолит с внекаркасным металлом способом, включающим (a) образование смеси A реагентов, содержащей (i) водную суспензию алюмосиликатного цеолита в H+-форме и (ii) металлсодержащее соединение или свободный металл, причем смесь не содержит аммиака, гидроксида аммония или соли аммония, и (b) взаимодействие металла в металлсодержащем соединении или свободном металле с алюмосиликатным цеолитом в H+-форме в смеси A реагентов для образования смеси B продуктов, содержащей алюмосиликатный цеолит с внекаркасным металлом, причем металл представляет собой одно или более из меди, марганца, никеля и палладия; а стадию взаимодействия металла с алюмосиликатным цеолитом в H+-форме проводят за одну реакцию обмена, и после образования смеси B продуктов алюмосиликатный цеолит ...

СПОСОБ ПОЛУЧЕНИЯ НАНОРАЗМЕРНОГО ЦЕОЛИТА СТРУКТУРНОГО ТИПА ZSM-5 В ПРОТОННОЙ ФОРМЕ

Изобретение относится к области неорганической химии и химической технологии. Описан способ получения наноразмерного цеолита структурного типа ZSM-5 в протонной форме, включающий получение конечной смеси путем смешения исходных компонентов: источника кремния - тетраэтилортосиликата, источника алюминия - изопропоксида алюминия, гидроксида тетрапропиламмония в воде, проведение кристаллизации при повышенной температуре и давлении в тефлоновом автоклаве, фильтрование полученного продукта с выделением твердого осадка, его промывку дистиллированной водой, сушку и прокаливание с удалением темплата и получением наноразмерного цеолита структурного типа ZSM-5 в протонной форме, причем смешение исходных компонентов осуществляют при мольном соотношении компонентов в конечной смеси тетраэтилортосиликат : вода : гидроксид тетрапропиламмония : изопропоксид алюминия, равном 1:4,2-4,4:0,2-0,3:0,006, а кристаллизацию проводят в условиях гидротермально-микроволнового синтеза, обеспечивающего температуру реакционной ...

СПОСОБЫ ПОЛУЧЕНИЯ НАНОЦЕОЛИТОВ И СПОСОБ ИЗВЛЕЧЕНИЯ НАНОЦЕОЛИТОВ ИЗ ВОДНОЙ СУСПЕНЗИИ

Изобретение относится к получению наноцеолитов. Предложены варианты осуществления способа извлечения наноцеолитов из водной суспензии. Способ включает воздействие центробежной силы на водную суспензию частиц наноцеолита с отделением надосадочной жидкости от твердой фазы, которая содержит наноцеолиты и остаточные примеси. Твердую фазу подвергают обработке раствором, который эффективно растворяет или превращает остаточные примеси и агломерирует наноцеолиты. Образованные агломерированные частицы наноцеолита извлекают из суспензии путем фильтрации. Изобретение обеспечивает упрощение способа выделения наночастиц цеолитов из суспензии и сокращает продолжительность процесса. 2 н. и 8 з.п. ф-лы, 1 ил., 1 пр.

СИЛИКАТ АЛЮМИНИЯ И СПОСОБ ЕГО ПОЛУЧЕНИЯ

... 1. Силикат алюминия, представленный формулой (I):где 0,12≤x≤1,3, 5,0≤m≤15,0, и 5≤n≤15, причем содержание NaO составляет от 1,5 до 11,0 вес.%, и по меньшей мере 50% атомов алюминия являются тетра-координированными атомами алюминия.2. Силикат алюминия по п. 1, кристаллическая структура которого, согласно методу порошковой рентгеновской дифракции, является аморфной.3. Способ получения силиката алюминия, включающий стадии:(1) взаимодействия водорастворимого силиката с водорастворимой солью алюминия с достижением отношения (Si/Al) атомов кремния, содержащихся в водорастворимом силикате, к атомам алюминия, содержащимся в водорастворимой соли алюминия, в интервале от 2,5 до 7,5, с получением реакционного раствора, имеющего pH от 3,5 до 10,5;(2) выдерживания реакционного раствора при 60-120ºC в течение 0,5-3 часов;(3) осуществления разделения "жидкость-твердая фаза" реакционного раствора с получением фильтровального осадка; и(4) промывки и сушки фильтровального осадка.4. Способ получения по п.

ЧЕТВЕРТИЧНЫЙ КАТИОН АММОНИЯ НА ОСНОВЕ МОРФОЛИНИЯ И ПОЛУЧЕННЫЙ С ЕГО ИСПОЛЬЗОВАНИЕМ ЦЕОЛИТ ТИПА AEI

Настоящее изобретение относится к алюмосиликатному цеолиту, способу изготовления алюмосиликатного цеолита и кристаллическому цеолиту AEI. Алюмосиликатный цеолит содержит по меньшей мере 90% чистой фазы цеолита AEI. Цеолит AEI содержит кристаллы, имеющие пластинчатую морфологию, где по меньшей мере 50% кристаллов имеют по меньшей мере одно отношение в по меньшей мере одной паре размеров в интервале от 5:1 до 20:1. По меньшей мере 50% кристаллов имеют толщину в интервале от 30 до 100 нм. Способ изготовления алюмосиликатного цеолита, имеющего каркас AEI, включает реакцию смеси, содержащей оксид кремния, фоязит, соединение четвертичного аммония, содержащее катион 2,4,4,6-тетраметилморфолиния, гидроксид щелочного металла и воду. Отношение OH/Si равно 0,4-0,8. Температура реакции по меньшей мере 100°С и в течение времени, достаточного для образования кристаллов алюмосиликатного цеолита, имеющего каркас AEI. Кристаллический цеолит AEI имеет поры, содержащие катион 2,4,4,6-тетраметилморфолиния.

СПОСОБ ПОЛУЧЕНИЯ СИНТЕТИЧЕСКОГО ГРАНУЛИРОВАННОГО ЦЕОЛИТА NaP

Изобретение относится к получению синтетического цеолита. Предложен способ получения гранулированного без связующего цеолита со структурой NaP, имеющего атомное соотношение Al:Si=1:(2÷3). Способ включает смешение исходных компонентов, формование гранул, их сушку, термоактивацию и гидротермальную кристаллизацию в щелочном растворе. На стадию смешения подают метакаолин и жидкое стекло с концентраций SiO24,8÷34,3 мас. %, силикатным модулем 2,7÷2,9 и плотностью 1,36÷1,50 г/см, обеспечивая массовое отношение метакаолин:жидкое стекло в исходной смеси 1:(24,41÷40,61). Обработку полученной суспензии осуществляют в ультразвуковом устройстве с частотой колебаний 22±1 кГц и амплитудой 8÷16 мкм в течение 20÷30 мин, затем суспензию упаривают до остаточной влажности 28÷29 мас. %. Термоактивацию проводят при 500÷700°С в течение 2÷6 ч. Гидротермальную кристаллизацию ведут в одну стадию в щелочном растворе с концентрацией по гидроксиду натрия 2÷4 моль/л при температуре 90÷110°С и соотношении твердой фазы ...

ВЫСОКОКРЕМНЕЗЕМНЫЙ ЦЕОЛИТ AEI

КАТАЛИЗАТОРЫ SCR С УЛУЧШЕННОЙ НИЗКОТЕМПЕРАТУРНОЙ ЭФФЕКТИВНОСТЬЮ И СПОСОБЫ ИХ СОЗДАНИЯ И ИСПОЛЬЗОВАНИЯ

КАТАЛИЗАТОРЫ ЖИДКОСТНОГО КАТАЛИТИЧЕСКОГО КРЕКИНГА ДЛЯ ПОВЫШЕНИЯ ВЫХОДОВ БУТИЛЕНА

ANTIBIOTISCHES ZEOLITH.

Rapid hydrothermal prodn. of zeolite A for use in detergents - by reacting active silica with aq. alkaline sodium aluminate soln.

Active silica is stirred with an aq. soln. contg. Na aluminate and NaOH, esp. Na aluminate liquor from the Bayer process. The zeolite formed is converted into crystalline zeolite in >=2 hrs. at >85 degrees C and opt. washed with water after filtration. Pref. the molar ratios in the reaction mixt. are Na2O/Al2O3 2.5-3.5, SIO2/Al2O3 1.5-2.0 and H2O/Na2O 20-50. The prod. can be used instead of phosphate in detergents. The process is economical, since zeolite A is produced from cheap raw materials, esp. solid SiO2, and the reaction time is much shorter thean usual.

ZEOLIT-GRANULATE MIT ZEOLIT-BINDEMITTEL.

Hydrothermal prodn. of zeolite with low iron content - from inexpensive raw and waste materials by pptn. in presence of complexing agent, pref. tri:ethanolamine

In the hydrothermal prodn. of zeolites low in Fe from starting materials contg. Al2O3, SiO2 and alkali oxide, the zeolite is pptd. in the presence of a complexing agent, pref. triethanolamine (I) in an amt. of 0.25-0.75, esp. 0.45-0.55 wt. % w.r.t. the dry zeolite. The process is esp. useful for the prodn. of type A zeolites from relatively cheap raw and waste materials, without the need for costly measures. The prods are suitable for use in detergents without the need for additional stabilisation of the peroxide component (preborate).

Verfahren und System zur Anpassung der Reduktionsmittelzufuhr in eine selektive katalytische Vorrichtung mit einer Filter-(SCRF)-Vorrichtung

Ein Verfahren zum Anpassen der Reduktionsmitteleinspritzung für eine selektive katalytische Reduktionsvorrichtung mit einem Rußfilter (SCRF) beinhaltet das Berechnen einer Rußmenge im SCRF durch einen Prozessor, das Bestimmen eines Schrumpfkernmodells des SCRF durch den Prozessor basierend auf der Rußmenge, das Berechnen einer Menge an Reduktionsmittel, die in den SCRF eingespritzt wird, mit dem Prozessor, unter Verwendung des Schrumpfkernmodells, und das Einspritzen der Menge an Reduktionsmittel in den SCRF.

PROCESS FOR THE PREPARATION OF ALUMINOSILICATE ION EXCHANGE MATERIALS

... 1,223,592. Zeolites. W. R. GRACE & CO. 22 March, 1968 [22 March, 1967], No. 14061/68. Heading C1A. Zeolite aluminosilicates having a silica: alumina ratio of 2:1 to 3:1 and having particles of predetermined size of 0.01 to 100 microns are prepared by dispersing a sodium aluminate solution having a Na 2 O; Al 2 O 3 ratio of 0À9:1 to 1À1:1 in a solution of sodium silicate having a Na 2 O: SiO 2 ratio of 0.75:1 to 1.0:1 in proportions to form a mixture having a silica: alumina ratio of 10:1 to 20:1, the sodium silicate solution being agitated at a constant rate while the sodium aluminate solution is added, and the mixture being maintained at 0‹ to 100‹ C. The mixing conditions are selected so as to produce particles of the required size, the mixing temperature being 0‹ C. for small particles and 100‹ C. for large particles and the mixtures being agitated vigorously for small particles and mildly for large particles. After mixing the solutions, zeolite particles are hydrothermally crystallized ...

IMPROVEMENTS IN OR RELATING TO THE PRODUCTION OF CRYSTALLINE SYNTHETIC ZEOLITES

... 1300945 Synthetic zeolites LAPORTE INDUSTRIES Ltd 27 May 1970 [29 May 1969] 27131/69 Heading C1A Synthetic zeolites of general formula 1À0Œ0À3 X = 2-15; Y = up to 10; n = valency of M, including new zeolites LS101 and LS102, are produced in a process in which (i) aluminium is partially removed, by treatment with acid, from an aluminosilicate of formula where M is a metal cation of valency n, hydrogen or ammonium x = 0À7-1À3, y 2-15, and z = up to 10, the product retaining some crystallinity, (ii) reacting a siliceous component, at least part of which is provided by the product of (i), an alumina component, and an alkali metal component in an aqueous medium to form a crystalline synthetic zeolite. The acid used in stage (i) may be an aqueous solution of a mineral acid or a strong organic acid, the solution may be buffered and the reaction may be carried out at 10-80‹ C. Per se claim is made to zeolites LS101 or LS102 of the following formulae or having X-ray pattern as in Table VII and VIII ...

Zeolite manufacture by a continuous gel crystallization process.

Zeolites are proposed by continuous crystallization of a gel through a cascade of crystallizers (preferably 10) 9 to 18, of increasing temperature throughout the series e.g. with an initial temperature of 80 DEG C and a final temperature of 100 DEG C, with controlled agitation and a maximum residence time from one crystallizer to the other of 5 minutes. The gel is conventionally produced starting from reactors 1 and 5. In reactor 1 natural silica coming from tank 2 reacts with sodium hydroxide coming from tank 4, while in reactor 5 the aluminium mineral coming from tank 6 reacts with sodium hydroxide. The mass is cooled and concentrated in step 19 being afterwards filtered in 20, dried in 23 and final product Zeolite, is ready to be used in 24. Zeolite 4A for use in detergents is the preferred product. ...

Method for preparation of uniformly oriented zeolite supercrystals using uniformly aligned template

Process for preparing zeolites

Synthetic zeolites are prepared by treating firm calcined non-zeolite particles of fixed size and shape which have been prepared synthetically so as to comprise at least one of the oxides silica and alumina with an aqueous solution containing alkali metal cations and hydroxyl, silicate and aluminate anions, and recovering alkali metal zeolite particles from the solution. The non-zeolite particles may be spheroidal in shape and the process may comprise treating silica with alkali metal aluminate, alumina with alkali metal silicate or alumina and silica with alkali metal hydroxide. The alkali metal may be sodium, potassium or lithium and the proportions in the reaction mixture may be adjusted to give a type A or type X sieve. The alkali metal zeolites may be subjected to ion exchange to give alkaline earth metal zeolites. The non-zeolite particles are calcined at 350-700 DEG C., the temperature of the aqueous treating solution may be 25-150 DEG C. and its pH greater than 11. The silica or ...

ZEOLITES AND THEIR USE

VERFAHREN ZUR DIREKTEN SYNTHESE VON MORDENITEN

In a process for direct synthesis of mordenites with a molar SiO2/Al2O3 ratio greater than 12, an aqueous synthesis mixture containing an a Na2O . b Al2O3 . c SiO2 system, the SiO2 : Al2O3 ratio in the synthesis mixture being greater than 10, the Na2O : SiO2 ratio being less than 0.2 and the H2O : SiO2 ratio being less than 25, is treated hydrothermally at temperatures greater than 150 DEG C, and the mordenite formed is then separated from the mother liquor. The silicic acid constituent of the synthesis mixture is the portion of the residue which remains after hydrochloric acid digestion of magnesium silicate, in particular serpentine, and which is soluble in this caustic solution. Preferably, the constituents of the synthesis mixture are provided in the following ratios: SiO2 : Al2O3 = 10 - 30; Na2O : SiO2 = 0.1 - 0.2; H2O : SiO2 = 5 - 20. The duration of the hydrothermal treatment is 6 to 12 hours, in particular 8 to 10 hours, and preferably temperatures of 180 to 200 DEG C are applied ...

ORGANIC-INORGANIC HYBRIDSILICATE AND - METALLSILICATE WITH REGULATORY STRUCTURE

PROCEDURE FOR THE PRODUCTION OF A ZEOLITHHALTIGEN SOLID

PROCEDURE FOR THE CONTINUOUS PRODUCTION OF FEINSTTEILIGER OF ZEOLITHI SODIUM ALUMINIUM SILICATES.

PROCEDURE FOR THE PRODUCTION OF ZEOLITES.

SYNTHESIS AND STABILIZATION OF NANO-POTASH GENE ZEOLITE PARTICLE

VERFAHREN ZUR DIREKTEN SYNTHESE VON MORDENITEN

CRYSTALLIZATION METHOD EMPLOYING MICROWAVE RADIATION

ZEOLITE SYNTHESIS

Method for heteroatom lattice substitution in large and extra-large pore borosilicate zeolites

Production of improved microporous zirconium silicate

The present invention relates to novel microporous zirconium silicate compositions having a desired particle size distribution and methods of making those compositions. These compositions have an ideal particle size distribution for use ...

Crystalline molecular sieves

A method of forming high aluminum aluminosilicate zeolites, microcrystalline zeolites and macroscopic aggregates thereof

CATALYTIC MATERIALS AND METHOD FOR THE PREPARATION THEREOF

CONTINUOUS PROCESS FOR THE PRODUCTION OF AMORPHOUS SODIUM ALUMINOSILICATE

A process for the continuous production of an aqueous, alkaline suspension of x-ray amorphous sodium aluminosilicate having a small particle size of at least 99% by volume of a particle size of less than 50 .mu., suitable for conversion into zeolite sodium aluminosilicate of the smallest particle sizes, by mixing an aqueous sodium aluminate solution with an aqueous sodium silicate solution in the presence of excess sodium hydroxide solution at a temperature in the range of from 20.degree. to 103.degree.C, where the solutions being mixed have a mathematical total molar ratio of: 1.5 to 9 Na2O:1 A12O3:1 to 7 SiO2:40 to 400 H2O consisting essentially of the steps of continuously passing one of said two aqueous solutions into the first zone of a progressively, separately zoned mixing area, continuously splitting the other aqueous solution into at least three partial streams, continuously passing the first of said partial streams into said first zone, continuously passing the mixed contents ...

METHOD OF MAKING SEED SOLUTION USEFUL IN ZEOLITE CATALYST MANUFACTURE

The useful storage life of a clear solution of seeds used to initiate the crystallization of zeolite in porous microspheres of calcined clay is increased by adding sodium silicate solution to a matured seed solution.

ZEOLITE SYNTHESIS

ZEOLITE SYNTHESIS The present invention relates to a method for synthesizing porous crystalline zeolite molecular sieves by first preparing a particular zeolite-forming reaction mixture comprising among other conventional components an alumina source which allows only a gradual release of aluminum or aluminate ions into the reaction mixture as a result of its limited solubility in the reaction mixture. Zeolites produced in this manner can have unique structure and/or crystal morphology and possess especially desirable catalytic properties when used to promote catalytic conversion of organic compounds.

PREPARATION OF SYNTHETIC ZEOLITES, AND PRODUCTS THUS MADE

Abrege Descriptif L'invention concerne la préparation de zéolites synthétiques choisies dans le groupe constitué par la chabazite, la merlinoite, l'édingtonite, le ZSM 5 et le ZSM 11. Selon l'invention, on applique à une zéolite choisie dans le groupe constitué par la mordénite, la ferriérite, la clinoptilolite et les zéolites X et Y, un traitement par au moins une base. L'invention conerne également les zéolites obtenues par ce procédé.

PROCESS FOR THE PREPARATION OF FINE DROPLET-REACTED ALUMINOSILICATES OF THE SMALLEST PARTICLE SIZE

CONTINUOUS PROCESS FOR THE PRODUCTION OF AMORPHOUS SODIUM ALUMINOSILICATE IN AN ELONGATED REACTION ZONE

HIGH SOLIDS MATERIALS PROCESSING

The present invention includes a microporous or mesoporous composition of matter in which the composition is formed continuously or semicontinuously in a heated reactor zone at a temperature between 200~C and 500~C with a residence time less than 24 hours. The reagents are solid and liquid reagents in which the solid reagents have a weight percent between 45% and 98% of the total reagents. The invention also includes a continuous or semi-continuous process for the hydrothermal manufacture of the microporous or mesoporous composition.

MOLECULAR SIEVES AND PROCESSES FOR THEIR MANUFACTURE

Crystalline molecular sieve particles of a size suitable for use as seeds in molecular sieve manufacture are obtained by washing larger particle sized product to dislodge smaller particles from the larger.

METHOD FOR THE SYNTHESIS OF ZEOLITES

ORGANOTEMPLATE-FREE SYNTHETIC PROCESS FOR THE PRODUCTION OF A ZEOLITIC MATERIAL OF THE CHA-TYPE STRUCTURE

The present invention relates to an organotemplate-free synthetic process for the production of a zeoiitic material having a CHA-type framework structure comprising YO2, X2O3, and optionally comprising Z2O5, wherein said process comprises the steps of: (1 ) providing a mixture comprising one or more sources for YO2, one or more sources for X2O3, and seed crystals having a CHA framework structure, wherein the CHA framework structure of the seed crystals comprises YO2, X2O3, and optionally comprises Z2O5; and (2) crystallizing the mixture obtained in step (1 ); wherein Y is a tetravaient element, X is a trivalent element, and Z is a pentavalent element, wherein optionally one or more sources for Z2O5 are further provided in step (1 ), and wherein if the CHA framework of the seed crystals does not contain Z2O5, the seed crystals then have a Y02 : X2O3 molar ratio of 5 or greater than 5.

PROCESS FOR PRODUCING SUBSTANTIALLY BINDER-FREE ZEOLITE

PROCESS FOR PRODUCTION OF ZEOLITES FROM RAW MATERIALS CONTAINING ALKALI ALUMINO HYDRO-SILICATES

The invention relates to a process for production of zeolites from raw materials with alkali alumino-hydrosilicate content comprising converting the alkali alumino-hydrosilicate content of the raw material into an amorphous state by acidic treatment, separating the intermediate amorphous solid material from the liquid phase and optionally purifying same, re-suspending it in water, alkalizing the suspension, followed by forming a slurry of the composition corresponding to the type of zeolite to be manufactured optionally by blending it with components containing SiO2, and/or A l2O3 and/or Na2O, followed by crystallization by method known per se after optionally adding crystal nuclei and/or aging of the synthesis slurry and separating the obtained zeolite product.

Verfahren zur Herstellung geformter Teilchen aus synthetischem Zeolith

PROCEDURE FOR THE PRODUCTION OF PURIFY-HASTY TO THE CATION EXCHANGE ENABLING WATER-INSOLUBLE SILICATES.

PROCEDURE FOR THE PRODUCTION OF ALLUMINO-SILICATI TO STRUCTURE ZEOLITICA.

PROCEDURE FOR THE PRODUCTION OF NATRIUMALUMINOSILIKAT ZEOLITE PARTICLES WITH SMALL AND UNIFORM SIZE.

METHOD FOR CONTINUOUS SYNTHESIS OF ZEOLITE CRYSTALS

COMPOSITION BASED ON ZIRCONIUM SILICATE FOR PROLONGED USE AND METHODS OF THEIR APPLICATION

METHOD FOR MULTIZATRAVOChNOGO SYNTHESIS OF ZEOLITE CRYSTALS WITH CONTROLLED GRAIN SIZE

MULTIREAKTORNYI SYNTHESIS ZEOLITE CRYSTALS WITH CONTROLLED PARTICLE SIZE

METHOD FOR SYNTHESIS OF ZEOLITE CRYSTALS WITH SEED AGENT

PROCESS FOR THE PREPARATION OF A CRYSTALLINE ALUMINOSILICATE

PROCEDE DE PREPARATION DE SILICATES FINEMENT DIVISES, INSOLUBLES DANS L'EAU, RENDUS APTES A L'ECHANGE DE CATIONS

Procédé de préparation d'aluminosilicates finement divisés, insolubles dans l'eau, aptes à l'échange de cations et de formule générale : (Na2 O)0,8-1,3 . (A1 2 O3 ) . (SiO2 )1,75-2,0 Les aluminosilicates selon l'invention sont caractérisés par leur aptitude remarquable à la fixation par échange des ions calcium. Ces aluminosilicates conviennent bien pour la fabrication d'agents de lavage et de détergents.

AMORPHOUS MATERIAL INCLUDING/UNDERSTANDING OF SILICON HAS POROSITY HIERARCHISEE AND ORGANISEE

PROCEDE DE PREPARATION DE ZEOLITES SYNTHETIQUES ET ZEOLITES OBTENUES PAR CE PROCEDE

L'INVENTION CONCERNE LA PREPARATION DE ZEOLITES SYNTHETIQUES. SELON L'INVENTION, ON APPLIQUE A UNE ZEOLITE CHOISIE DANS LE GROUPE CONSTITUE PAR LES ZEOLITES X OU Y UN TRAITEMENT PAR AU MOINS UNE BASE. L'INVENTION CONCERNE EGALEMENT LES ZEOLITES OBTENUES PAR CE PROCEDE.

Procede pour la preparation d'agglomeres de tamis moleculaires zeolitiques a liant zeolitique

On decrit un procede pour l'obtention d'agglomeres de tamis moleculaires zeolitiques dont le liant lui-meme est de nature zeolitique. On procede par empatage d'une poudre de zeolite au moyen d'un sol de silice et d'une solution d'aluminate de sodium, filage de la pate, murissement a l'ambiante, puis traitement thermique et calcination.

METHOD FOR PREPARING ZEOLITES AND SILICA-BASED OXIDES TETRAVALENT ELEMENTS.

Process for the preparation of zeolites based on silica and oxides of tetravalent elements

La présente invention a pour objet un procédé de préparation de zéolithes de structure MFI à base de silicium et d'éléments tétravalents T' choisis parmi le titane, le germanium, le zirconium et/ou l'étain caractérisé par le fait qu'il comprend les étapes suivantes: (i) - la préparation d'un mélange réactionnel aqueux, homogène contenant: . une source de silicium sous forme d'un complexe fluoré, . une ou plusieurs sources d'éléments tétravalents T' sous forme de complexes fluorés, . un agent chimique (Mod) qui fournit des ions OH- par décomposition hydrothermique dans les conditions réactionnelles, . un agent structurant (Str) qui oriente et stabilise la formation de la zéolithe. (ii) - la cristallisation de la zéolithe à partir dudit mélange réactionnel par chauffage de ce mélange réactionnel à une température d'au moins 120degré C dans des conditions de gravité inférieure à la gravité terrestre, (iii) - la séparation du précipité ainsi formé puis la calcination dudit précipité à une température ...

PROCEEDED FOR the PREPARATION Of MOLECULAR AGGLOMERATES OF SIEVE ZEOLITIQUES HAS BINDER ZEOLITIQUE

ZEOLITES

METHOD FOR THE CONTINUOUS SYNTHESIS OF ZEOLITE CRYSTALS

La présente invention concerne un procédé de préparation de cristaux de zéolithe en continu, comprenant l'introduction en continu d'une composition susceptible de générer des cristaux de zéolithe dans au moins une zone réactionnelle de cristallisation soumise à des moyens d'agitation, conférant à la dite composition un écoulement caractérisé par un nombre de Reynolds relatif Rer compris entre 40 et 50000, et la récupération en continu des cristaux formés selon un écoulement caractérisé par un nombre de Reynolds net Ren compris entre 1 et 1500.

Method for producing silver-ion antibacterial liquid, silver-ion antibacterial liquid produced by said method, method for producing silver-ion antibacterial powder, and silver-ion antibacterial powder produced by said method

PROCESSO PARA PREPARACAO CONTINUA DE ALUMINIO-SILICATO DE SODIO MUITO FINAMENTE DIVIDIDO E SEU EMPREGO

ALUMINOSILICATE X-TYPE ZEOLITE COMPOSITIONS WITH LOW LTA-TYPE ZEOLITE

A zeolite X having (a) a Si/Al framework mole ratio in a range from 1.0 to 1.5; (b) a mean diameter not greater than 2.7 microns; and (c) a relative LTA intensity not greater than 0.35, as determined by x-ray diffraction (XRD). The relative LTA intensity is calculated as 100 times the quotient of a sample LTA XRD intensity divided by a reference XRD intensity of an LTA-type zeolite material. The intensities are summed for each LTA peak with Miller indices of (2 0 0), (4 2 0), and (6 2 2) at 7.27 ±0.16°, 16.29 ± 0.34° and 24.27 ± 0.50° 2 .

ALUMINUM SILICATE COMPLEX, CONDUCTIVE MATERIAL, CONDUCTIVE MATERIAL FOR LITHIUM ION SECONDARY CELL, COMPOSITION FOR FORMING LITHIUM ION SECONDARY CELL NEGATIVE ELECTRODE, COMPOSITION FOR FORMING LITHIUM ION SECONDARY CELL POSITIVE ELECTRODE, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY CELL, POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY CELL, AND LITHIUM ION SECONDARY CELL

Provided are an aluminum silicate that adsorbs little water; a conductive material capable of imparting excellent electrical properties and service life properties to a cell; a conductive material for a lithium ion secondary cell capable of imparting excellent electrical properties and service life properties to a lithium ion secondary cell; a composition for forming a lithium ion secondary cell negative electrode, a composition for forming a lithium ion secondary cell positive electrode, a negative electrode for a lithium ion secondary cell, and a positive electrode for a lithium ion secondary cell all containing the aforementioned conductive material for a lithium ion secondary cell; and a lithium ion secondary cell having the aforementioned negative electrode for a lithium ion secondary cell or positive electrode for a lithium ion secondary cell.

PRODUCTION OF MYRTANAL FROM BETA-PINENE EPOXIDE

The present invention relates to a procedure for the production of myrtanal from β-pinene epoxide, comprising as a minimum putting said epoxide in contact with a crystalline microporous catalyst having pores of diameter of at least 0.52 nm and having an empirical formula in dehydrated calcined form of Hw(MwTixSnyZrzSi1-w-x-and-z)O2, where M is at least one metal of valency +3 selected from among Al, B, Ga, Fe, Cr, and combinations thereof; w is a molar fraction of M having a value between 0 and 2(x+y+z); x is a molar fraction of titanium having a value between 0 and 0.06; y is a molar fraction of tin having a value between 0 and 0.06; z is a molar fraction of zirconium having a value between 0 and 0.064, and wherein at least one of the three values "x", "y" or "z" differs from zero. In the present invention it is preferable for the crystalline microporous catalyst to have pores of at least 0.52 nm and a crystalline structure having an x-ray diffractogram corresponding to a beta zeolite.

PROCESS FOR BENZENE ALKYLATION AND TRANSALKYLATION OF POLYALKYLATED AROMATICS OVER IMPROVED ZEOLITE BETA CATALYST

An aromatic alkylation process includes contacting an aromatic compound with an alkylating agent in the presence of a zeolite beta in a reaction zone under alkylation reaction conditions, wherein said zeolite beta is a high performance zeolite beta possessing a ratio of strong acid sites/weak acid sites greater than 1. The high performance zeolite beta is superior to conventional zeolite beta in the aromatics alkylation reaction, such as benzene alkylation with ethylene for ethylbenzene production, and benzene alkylation with propylene for cumene production.

METHOD AND APPARATUS FOR PRODUCING ZEOLITE CONTINUOUSLY

A method for producing zeolite continuously, which comprises admixing a solid containing aluminosilicate with an aqueous alkali solution, subjecting the resultant mixed fluid to continuous circulation, heating and evaporation by using multiple effect evaporators (12), (15), (18). It is preferred that the alkali concentration of the aqueous alkali solution is kept at a level of 3.6 N or more and the operation temperature is higher than 100˚C and not higher than 200˚C. The method allows the continuous production of zeolite without gradual reduction of the alkali concentration in the reaction system, and can be employed for producing zeolite continuously on a large scale with high efficiency and energy-saving.

Method for producing a polyoxyalkylene glycol and novel metallo-aluminosilicate

A method for producing a polyoxyalkylene glycol by ring opening polymerization of a cyclic ether, wherein a zeolite (other than ZSM-5, ZSM-11 and Nu-5) is used as a catalyst.

MANUFACTURE OF ZEOLITES.

Antibiotic zeolite

An antibiotic zeolite and an antibiotic resin composition containing thereof are provided. The antibiotic zeolite is prepared by replacing all or a part of ion-exchangeable ions in zeolite with ammonium ions and antibiotic metal ions such as silver, copper, zinc, mercury, tin, lead, bismuth, cadmium, chromium and thallium. The antibiotic resin composition comprises the antibiotic zeolite and a resin such as polyethylene, polypropylene, polyvinyl chloride and polystyrene.

PHEROMONE CLATHRATES

A slow-release composition comprising: first host material comprising a mesoporous molecular sieve; guest material within the first host material, the guest material comprising at least one pheromone, wherein the pheromone is selected from a group consisting of: 1,7-dioxaspiro-5,5-undecane; Z-7-Tetradecenal; E-11-hexadecenal; E-11-Hexedecenyl-1-acetate; E,E-8,11-dodecandien-1-ol; Z,E-9,11,13-Tetradecatrienal, and E,Z,Z-3,8,11-Tetradecatrienyl acetate, and mixtures thereof.

Zeolite production method

Provided is a method for continuous production of zeolite in which a starting material is continuously supplied to a tubular reactor to produce an aluminophosphate zeolite that contains, in the framework structure, at least aluminum atoms and phosphorus atoms or an aluminosilicate zeolite having 5≤SiO2/Al2O3≤2000. The tubular reactor is heated using a heat medium; a ratio (volume)/(lateral surface area) of the volume (inner capacity) to the lateral surface area of the tubular reactor is 0.75 cm or smaller; and seed crystals are added to the starting material. Through using a small-diameter tubular reactor and heating with a heat medium, it becomes possible to heat sufficiently the entirety of a starting material (zeolite precursor gel) in a short time, and to allow reaction to proceed at a high rate. The occurrence of irregular pressure fluctuations during continuous production of the zeolite can be prevented by adding seed crystals.

Methods for preparing composites of substrate-molecular sieve

The present invention relates to a method for preparing composites of substrate-molecular sieve, in particular, to a method for preparing a composite of substrate-molecular sieve, which comprises applying a physical pressure to molecular sieve crystals against a substrate to form a chemical bond between the molecular sieve crystal and the substrate. The present invention requiring no solvents, reactors and other equipments enables molecular sieve crystals to be stably attached to the surface of substrates through various chemical bonds, particularly ionic present invention ensures the synthesis of substrate-molecular sieve composites with enhanced attachment rate, degree of lateral close packing (DCP) and attachment strength in more time-saving and energy-saving manners. The present method works well for molecular sieve crystals with lager sizes (e.g., more than 3 m) with no generation of parasitic crystals. Furthermore, the present invention shows excellent applicability to large substrates ...

ゼオライトおよびその製法

... 本発明は、ゼオライトおよびその製法に関するものである。さらに、本発明は酸性種に対する反応性を維持したままで含水量が低減した改質ゼオライトに関するものである。その含水量は衝撃焼きなまし処理またはコーティングによって低減される。この改質ゼオライトは、ハロゲン含有ポリマー用の安定化剤として有用である。 ...

УСОВЕРШЕНСТВОВАННЫЕ ЦЕОЛИТЫ И МОЛЕКУЛЯРНЫЕ СИТА ИИХ ПРИМЕНЕНИЕ

Изобретение относится к области химии. Предложены цеолиты, имеющие AAI по меньшей мере 1, 2. Цеолит получают способом, включающим удаление тетраэтиламмониевого шаблонного агента, заключающимся в удалении указанного шаблонного агента при температуре не выше 550°С и в условиях, где после удаления шаблонного агента указанный цеолит имеет AAI по меньшей мере 1, 2. Цеолит выбирают из группы, состоящей из бэта-цеолита, ТЕА-морденита, ТЕА-ZSM-12. Полученные цеолиты эффективны для процессов ароматического алкилирования. 7 з.п. ф-лы.

СПОСОБ ПОЛУЧЕНИЯ СОДЕРЖАЩЕГО ЦЕОЛИТ ТВЕРДОГО ВЕЩЕСТВА

Изобретение относится к способам получения цеолитов. Способ получения твердого вещества, содержащего титан-силикалит-1, включает: стадию (I): по меньшей мере, частичную кристаллизацию твердого вещества, содержащего, по меньшей мере, один цеолит, из синтезной смеси с получением смеси (I), включающей, по меньшей мере, упомянутое твердое вещество, а также, по меньшей мере, одно темплатное соединение, представляющее собой гидроксид тетрапропиламмония, в качестве вспомогательного вещества; стадию (II): концентрацию твердого вещества, которое находится в смеси (I), ультрафильтрацией с получением ретентата и пермеата, причем пермеат содержит упомянутое, по меньшей мере, одно темплатное соединение; стадию (III): агломерацию или грануляцию или агломерацию и грануляцию частиц твердого вещества в ретентате со стадии (II), причем полученный на стадии (II) пермеат, содержащий упомянутое, по меньшей мере, одно темплатное соединение, по меньшей мере, частично возвращают на стадию (I), а ультрафильтрацию ...

НАСТРАИВАЕМЫЕ АДСОРБЕНТЫ

Изобретение относится к способу модификации кристаллического неорганического каркаса адсорбента с помощью покрытий, в частности к способу уменьшения размера входного отверстия пор кристаллического неорганического адсорбента. Способ включает приведение адсорбента в контакт с силиконовым предшественником для образования смеси и обжиг смеси при температуре и в условиях, позволяющих эффективным образом получить адсорбент с требуемым размером входного отверстия пор. Причем силиконовый предшественник выбран из полимерного диметилсилоксана с концевыми гидроксильными, метоксильными или этоксильными группами, метилсилсесквиоксанов, октилсилсесквиоксанов, метилоктилсилсесквиоксанов или из их смесей или сочетаний. Изобретение обеспечивает уменьшение эффективного размера пор кристаллических твердых тел с порами менее 5для обеспечения селективности по скорости адсорбции в отношении одного газа по сравнению с другими и достижения селективного по размеру молекул разделения. Дополнительное свойство улучшенного ...

СПОСОБ ПРЕВРАЩЕНИЯ ГАЛОИДАЛКИЛОВ В ЭТИЛЕН И ПРОПИЛЕН

Изобретение относится к способу превращения, по меньшей мере, одного галоидалкила в этилен и пропилен. Способ включает следующие этапы: предоставление потока исходных материалов (1), содержащего, по меньшей мере, один галоидалкил; необязательно разбавленный, по меньшей мере, одним разбавителем; предоставление первой каталитической композиции и второй каталитической композиции, при этом указанная вторая каталитическая композиция содержит катализатор крекинга; контактирование указанного потока исходных материалов (1) с указанной первой каталитической композицией в первой реакционной зоне (3) при первых условиях реакции для получения первого потока продукта (5); и подвергание, по меньшей мере, части указанного первого потока продукта (5) каталитическому крекингу олефинов с указанной второй каталитической композицией во второй реакционной зоне (7) при вторых условиях реакции для получения второго потока продукта (9). Способ характеризуется тем, что он дополнительно содержит этап пропаривания ...

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, ...

НОВЫЙ МЕТАЛЛОСОДЕРЖАЩИЙ ЦЕОЛИТ БЕТА ДЛЯ ВОССТАНОВЛЕНИЯ NOХ И СПОСОБЫ ЕГО ИЗГОТОВЛЕНИЯ

... 1. Не содержащий органических материалов металлосодержащий цеолит бета с молярным соотношением диоксида кремния и оксида алюминия (SAR), составляющим от 5 до 20, в котором указанный металл представляет собой железо и/или медь количестве, составляющем, по меньшей мере, 1,0 мас.%.2. Не содержащий органических материалов металлосодержащий цеолит бета по п.1, с условием, что если указанный цеолит бета содержит какой-либо органический структурообразующий агент (SDA) в пористой структуре, то его наличие обусловлено присутствием затравочного материала в ходе синтеза.3. Металлосодержащий цеолит бета по п.1, в котором указанный металл представляет собой железо и/или медь в количестве, составляющем от 1,0 до 10 мас.%.4. Металлосодержащий цеолит бета по п.3, в котором, по меньшей мере, 60% железа присутствует в виде изолированного катиона в центре обмена.5. Металлосодержащий цеолит бета по п.1, который демонстрирует конверсию NO, составляющую, по меньшей мере, 40% при 200°C для селективного каталитического ...

КАТАЛИТИЧЕСКИЕ МАТЕРИАЛЫ И СПОСОБ ИХ ПОЛУЧЕНИЯ

... 1. Каталитический материал, отличающийсятем, что каталитический материал представляет собой мезопористое молекулярное сито с заделкой цеолитом, и каталитический материал является термостойким при температуре не ниже 900°C. 2. Каталитический материал по п.1, отличающийся тем, что каталитический материал имеет удельную площадь поверхности в интервале 1400-500 м2/г, предпочтительно, 1200-600 м2/г. 3. Каталитический материал по п.1, отличающийся тем, что каталитический материал содержит мезопористое молекулярное сито, выбранное из группы M41S, предпочтительно, мезопористое молекулярное сито, выбранное из МСМ-41 или МСМ-48. 4. Каталитический материал по п.1, отличающийся тем, что каталитический материал содержит среднепористый цеолит, выбранный из цеолитов MFI, MTT, TON, AEF, MWW и FER, или крупнопористый цеолит, выбранный из цеолитов BEA, FAU, MOR, предпочтительно, цеолитом является цеолит MFI, MTT, AEF, BEA, MWW или MOR. 5. Каталитический материал по п.4, отличающийся тем, что мезопористым ...

НАСТРАИВАЕМЫЕ АДСОРБЕНТЫ

СПОСОБ ПОЛУЧЕНИЯ ЦЕОЛИТНОГО МАТЕРИАЛА

... 1. Способ получения цеолитного материала, включающий в себя(i) обеспечение содержащего бор цеолитного материала (B-Цеолита);(ii) деборирование B-Цеолита системой жидких растворителей при температуре в интервале от 50 до 125°C, получая таким образом деборированный B-Цеолит (Цеолит);в котором систему жидких растворителей выбирают из группы, состоящей из воды, одноатомных спиртов, многоатомных спиртов и смесей двух или более из них, и в котором указанная система жидких растворителей не содержит неорганической или органической кислоты или их соли, где кислота выбирается из группы, состоящей из соляной кислоты, серной кислоты, азотной кислоты, фосфорной кислоты, муравьиной кислоты, уксусной кислоты, пропионовой кислоты, щавелевой кислоты и винной кислоты.2. Способ по п. 1, в котором содержащий бор цеолитный материал B-Цеолит, обеспеченный на стадии (i), является или содержащим бор цеолитным материалом структуры типа MWW (B-MWW) или содержащим бор цеолитным материалом, который не является содержащим ...

Method for preparing molecular sieves

A method for synthesizing a molecular sieve comprising providing a reaction mixture sufficient to synthesize the molecular sieve, maintaining the reaction mixture under crystallization conditions, monitoring at least one viscometric parameter of the reaction mixture, and determining an endpoint based on the monitoring of the at least one viscometric parameter.

Dehydroxylation pretreatment of inorganic materials in mesopore introduction process

Mesoporous compositions and methods for preparing mesoporous and/or mesostructured materials from inorganic materials are provided. Various embodiments described herein relate to the preparation of mesoporous and/or mesostructured zeolites via a dehydroxylation pretreatment followed by a mesopore introduction step.

Double-component modified molecular sieve with improved hydrothermal stability and production method thereof

A method for producing double-component modified molecular sieve comprises adding molecular sieve to an aqueous solution containing phosphorus to form a mixture, allowing the mixture to react at pH of 1-10, temperature of 70-200° C. and pressure of 0.2-1.2 MPa for 10-200 min, and then filtering, drying and baking the resultant to obtain phosphorus-modified molecular sieve, and then adding the phosphorus-modified molecular sieve to an aqueous solution containing silver ions, allowing the phosphorus-modified molecular sieve to react with silver ions at 0-100° C. in dark condition for 30-150 min, and then filtering, drying and baking. The obtained double-component modified molecular sieve contains 88-99 wt % molecular sieve with a ratio of silica to alumina between 15 and 60, 0.5-10 wt % phosphorus (based on oxides) and 0.01-2 wt % silver (based on oxides), all based on dry matter. A catalyst produced from the double-component modified molecular sieve has improved hydrothermal stability and microactivity.

Fluid Filtration Medium

The present application relates to improved filtration of fluids. Particularly, a surfactant-treated zeolite material may be utilized for removing turbid particles from a volume of fluid, such as water.

Organotemplate-Free Synthetic Process For The Production Of A Zeolitic Material Of The LEV-Type Structure

Described is an organotemplate-free synthetic process for the production of a zeolitic material having an LEV-type framework structure comprising YOand optionally comprising XO, wherein said process comprises: 139-. (canceled)40. An organotemplate-free synthetic process for the production of a zeolitic material having an LEV-type framework structure comprising YOand optionally comprising XO , wherein said process comprises the steps of{'sub': '2', '(1) preparing a mixture comprising seed crystals and one or more sources for YO; and'}(2) crystallizing the mixture obtained in step (1);wherein Y is Si, and X is a trivalent element,wherein the zeolitic material optionally comprises one or more alkali metals M, andwherein the seed crystals comprise zeolitic material having an LEV-type framework structure.41. The process of claim 40 , wherein the mixture in step (1) further comprises one or more sources for XO.42. The process of claim 41 , wherein X is selected from the group consisting of Al claim 41 , B claim 41 , In claim 41 , Ga claim 41 , and mixtures of two or more thereof.43. The process of claim 40 , wherein the seed crystals comprise one or more zeolites selected from the group consisting of Levyne claim 40 , LZ-132 claim 40 , NU-3 claim 40 , RUB-1 claim 40 , ZK-20 claim 40 , ZSM-45 claim 40 , RUB-50 claim 40 , and mixtures of two or more thereof.44. The process of claim 40 , wherein the one or more sources for YOcomprises silica.45. The process of claim 41 , wherein the one or more sources for XOcomprises at least one aluminate salt.46. The process of claim 45 , wherein the one or more sources for XOcomprises sodium and/or potassium aluminate.47. The process of claim 41 , wherein the YO:XOmolar ratio of the mixture according to step (1) ranges from 0.5 to 300.48. The process of claim 40 , wherein the amount of seed crystals in the mixture according to step (1) ranges from 0.01 to 30 wt.-% based on 100 wt.-% of YOin the at least one source for YO.49. The process ...

Method for Magnetising Natural and Synthetic Aluminosilicates

Procedure for the magnetization of different inorganic surfaces, whether natural or synthetic, such as aluminosilicates, both synthetic and natural (natural zeolites, synthetic zeolites, alumina, allophane, among others) that give magnetic properties to those surfaces. Objectives of the present application are also the above mentioned surfaces, magnetized, and their different uses. 1. Procedure for the magnetization of inorganic surfaces CHARACTERIZED because it comprises coating those surfaces with magnetite by in situ co precipitation of iron oxide.2. Procedure according to CHARACTERIZED because it uses a solution of FeSOwith an Fe concentration of 0.1 to 2 M claim 1 , depending on the surface that it is desired to coat.3. Procedure according to CHARACTERIZED because it is carried out in an inert atmosphere and at a temperature of 363±5° K.4. Procedure according to CHARACTERIZED because after adding the surface that it is desired to coat claim 1 , a 0.001 M solution of KNOprepared in 8 M NHOH is added.5. Procedure according to CHARACTERIZED because said inorganic surfaces can be natural or synthetic claim 1 , such as natural as well as synthetic aluminosilicates claim 1 , natural zeolites claim 1 , synthetic zeolites claim 1 , alumina claim 1 , allophane claim 1 , among others.6. Use of magnetized inorganic surfaces claim 1 , such as aluminosilicates claim 1 , CHARACTERIZED because they serve to eliminate organic as well as inorganic contaminants and radioactive elements in solution claim 1 , in addition to serving for the controlled release of medicines claim 1 , as catalysts claim 1 , in industrial processes claim 1 , in agronomic applications claim 1 , in animal nutrition and health claim 1 , among others.7. Use of magnetic zeolite CHARACTERIZED because it serves for the removal of oil spills on water.8. Magnetic zeolite CHARACTERIZED because it has a magnetization of 80 emu/g. The objective of the present application is the procedure for the magnetization of ...

Mesoporous y hydrocracking catalyst and associated hydrocracking processes

This invention relates to the composition, method of making and use of a hydrocracking catalyst that is comprised of a new Y zeolite which exhibits an exceptionally low small mesoporous peak around the 40 Å (angstrom) range as determined by nitrogen adsorption measurements. The hydrocracking catalysts of invention exhibit improved distillate yield and selectivity as well as improved conversions at lower temperatures than conventional hydrocracking catalysts containing Y zeolites. The hydrocracking catalysts herein are particularly useful in the hydrocracking processes as disclosed herein, particularly for conversion of heavy hydrocarbon feedstocks such as gas oils and vacuum tower bottoms and an associated maximization and/or improved selectivity of the distillate yield obtained from such hydrocracking processes.

Organotemplate-free Synthetic Process for the Production of a Zeolitic Material of the CHA-Type Structure

The present invention relates to an organotemplate-free synthetic process for the production of a zeolitic material having a CHA-type framework structure comprising YO, XO, and optionally comprising ZO, wherein said process comprises the steps of: 1. An organotemplate-free synthetic process for the production of a zeolitic material having a CHA-type framework structure comprising YO , XO , and optionally comprising ZO , wherein said process comprises the steps of:{'sub': 2', '2', '3', '2', '2', '3', '2', '5, '(1) providing a mixture comprising one or more sources for YO, one or more sources for XO, and seed crystals having a CHA framework structure, wherein the CHA framework structure of the seed crystals comprises YO, XO, and optionally comprises ZO; and'}(2) crystallizing the mixture obtained in step (1);wherein Y is a tetravalent element, X is a trivalent element, and Z is a pentavalent element,{'sub': 2', '5, 'wherein optionally one or more sources for ZOare further provided in step (1), and'}{'sub': 2', '5', '2', '2', '3, 'wherein if the CHA framework structure of the seed crystals does not contain ZO, the seed crystals then have a YO:XOmolar ratio of 5 or greater than 5.'}2. The process of claim 1 , wherein if the CHA framework structure of the seed crystals further comprises ZOin addition to YOand XO claim 1 , the seed crystals then have a YO: nXO:pZOmolar ratio claim 1 , wherein the value for the ratio (1+2p):(n−p) is 5 or greater than 5.3. The process of claim 1 , wherein the YO:XOmolar ratio of the mixture provided in step (1) ranges from 1 to 200.4. The process of claim 1 , wherein the mixture provided in step (1) comprises one or more alkali metals M.5. The process of claim 4 , wherein the MO:YOmolar ratio in the mixture according to step (1) ranges from 0.01 to 5.6. The process of claim 4 , wherein the YO:XO:MO molar ratios in the mixture according to step (1) range from (5-100):1:(0.5-50).7. The process of claim 1 , wherein the mixture provided in step ...

Process for Ion Exchange on Zeolites

Aspects of the present invention relate to an improved process for exchanging alkali metal or alkaline earth metal ions in zeolites for ammonium ions. For this exchange, aqueous solutions of ammonium salts, for example ammonium sulfate, ammonium nitrate or ammonium chloride, are currently being used. The resulting “ammonium zeolites” are calcined to convert them, with release of ammonia, to the H form of the zeolites suitable as a catalyst. Certain methods provided herein use ammonium carbonate instead of the ammonium compounds mentioned. As excess ammonium carbonate, in contrast to the nitrates, sulfates or chlorides, can be recycled in the form of carbon dioxide and ammonia, the amount of salt which has to be discharged is lowered significantly.

Process for Ion Exchange on Zeolites

Aspects of the present invention relate to an improved process for exchanging sodium ions in zeolites comprising sodium ions and rare earth metal ions for ammonium ions. For this exchange, aqueous solutions of ammonium salts, for example ammonium sulfate, ammonium nitrate or ammonium chloride, are currently being used. The resulting “ammonium zeolites” are calcined to convert them, with release of ammonia, to the H form of the zeolites suitable as a catalyst. The use of ammonium carbonate also minimizes the amount of rare earth metal ions which are leached out of the zeolites comprising rare earth metal ions. 1. A method for exchanging sodium ions in zeolites comprising sodium ions and rare earth metal ions for ammonium ions , the method comprising treating the zeolite comprising sodium ions and rare earth metal ions with a solution comprising water and ammonium carbonate.2. The method of claim 1 , wherein after treatment claim 1 , the zeolite has a content of rare earth metal ions of 0.01 to 10% by weight (expressed as REO).3. The method of claim 2 , wherein the content of rare earth metal ions is 0.1 to 8% by weight.4. The method of claim 3 , wherein the content of rare earth metal ions is 0.5 to 5% by weight.5. The method of claim 1 , wherein the zeolite comprises ZSM-5 X claim 1 , Y claim 1 , A claim 1 , L claim 1 , faujasite claim 1 , chabazite claim 1 , erionite claim 1 , mordenite claim 1 , or offretite.6. The method of claim 1 , wherein the solution comprising water and ammonium carbonate is prepared from water claim 1 , ammonium carbonate and a further compound selected from the group consisting of urea claim 1 , ammonium carbamate claim 1 , mixtures of carbon dioxide and ammonia claim 1 , and mixtures thereof.7. The method of claim 1 , wherein the rare earth metal comprises an element selected from the group consisting of lanthanum claim 1 , cerium claim 1 , praseodymium and neodymium claim 1 , and combinations thereof.8. The method of claim 7 , wherein ...

Stabilized microporous crystalline material, the method of making the same, and the use for selective catalytic reduction of nox

There is disclosed a microporous crystalline material having pore opening ranging from 3 to 5 Angstroms, where the material comprises a first metal chosen from alkali earth group, rare earth group, alkali group, or mixtures thereof, and a second metal chosen from iron, copper or mixtures thereof; and has a molar silica to alumina ratio (SAR) from 3 to 10. The microporous crystalline material disclosed herein may comprise a crystal structure having building units of double-6-rings (d6r) and pore opening of 8-rings as exemplified with framework types defined by the Structure Commission of the International Zeolite Association having structural codes of CHA, LEV, AEI, AFT, AFX, EAB, ERI, KFI, SAT, TSC, and SAV. There is also disclosed a method of selective catalytic reduction of nitrogen oxides in exhaust gas, comprising at least partially contacting the exhaust gases with an article comprising the disclosed microporous crystalline material.

ZEOLITE PRODUCTION METHOD

Disclosed is a method for readily and inexpensively producing zeolite without using an organic structure-directing agent (organic SDA). Specifically disclosed is a method whereby a gel containing a silica source, an alumina source, an alkaline source and water is reacted with zeolite seed crystals, to produce a zeolite with the same kind of skeletal structure as the zeolite. The gel used is a gel of a composition whereby, when a zeolite is synthesized from this gel only, the synthesized zeolite comprises at least one of the kinds of composite building units of the target zeolite. 1. A method of producing a zeolite in which a gel including a silica source , an alumina source , an alkali source and water , and zeolite seed crystals are reacted so as to produce a zeolite having the same kind of skeletal structure as the zeolite ,wherein a gel having a composition which, when the zeolite is synthesized from the gel alone, makes the synthesized zeolite include at least one of composite building units of a target zeolite as the composite building unit is used as the gel.2. The method of producing a zeolite according to claim 1 ,wherein a gel having a composition which makes a zeolite synthesized from the gel alone have a different kind of skeletal structure from the zeolite of the seed crystals is used as the gel.3. The method of producing a zeolite according to claim 2 ,wherein the target zeolite is MFI zeolite,MFI zeolite is used as the seed crystals, anda gel having a composition which, when the zeolite is synthesized from the gel alone, makes the synthesized zeolite become mordenite is used as the gel.4. The method of producing a zeolite according to claim 3 ,wherein a gel having a composition shown in the following (a) or (b) is used as the gel,(a){'sub': 2', '2', '3, 'SiO/AlO=40 to 200,'}{'sub': 2', '2, 'NaO/SiO=0.24 to 0.4,'}{'sub': 2', '2, 'HO/SiO=10 to 50,'}(b){'sub': 2', '2', '3, 'SiO/AlO=10 to 40,'}{'sub': 2', '2, 'NaO/SiO=0.05 to 0.25,'}{'sub': 2', '2, 'HO/SiO ...

Uzm-39 aluminosilicate zeolite

A new family of coherently grown composites of TUN and IMF zeotypes have been synthesized. These zeolites are represented by the empirical formula. Na n M m k+ T t Al 1−x E x Si y O z where “n” is the mole ratio of Na to (Al+E), M represents a metal or metals from zinc, Group 1, Group 2, Group 3 and or the lanthanide series of the periodic table, “m” is the mole ratio of M to (Al+E), “k” is the average charge of the metal or metals M, T is the organic structure directing agent or agents, and E is a framework element such as gallium. These zeolites are similar to TNU-9 and IM-5 but are characterized by unique compositions and synthesis procedures and have catalytic properties for carrying out various hydrocarbon conversion processes and separation properties for carrying out various separations.

INTRODUCTION OF MESOPOROSITY INTO LOW SILICA ZEOLITES

Mesoporous X and A zeolites and methods for production thereof are disclosed herein. Such mesoporous zeolites can be prepared by contacting an initial zeolite with an acid in conjunction with a mesopore forming agent. The initial zeolite can have a framework silicon-to-aluminum content in the range of from about 1 to about 2.5. Additionally, such mesoporous zeolites can have a total 20 to 135 Å diameter mesopore volume of at least 0.05 cc/g. 1. A method of forming a material comprising a mesoporous zeolite , said method comprising:(a) contacting an initial zeolite with a mesopore forming agent thereby forming a first treatment mixture comprising said initial zeolite and said mesopore forming agent; and(b) introducing an acid into said first treatment mixture thereby forming a second treatment mixture comprising said mesoporous zeolite, said mesopore forming agent, and said acid,wherein said initial zeolite has a framework silicon-to-aluminum ratio (“Si/Al”) in the range of from about 1 to about 2.5.2. The method of claim 1 , wherein said mesoporous zeolite has a total 20 to 135 Å diameter mesopore volume of at least 0.05 cc/g.3. The method of claim 1 , wherein said mesoporous zeolite has a crystalline content of at least 10 weight percent as measured by X-ray diffraction (“XRD”).4. The method of claim 1 , wherein said mesoporous zeolite has a total 20 to 135 Å diameter mesopore volume that is at least 0.02 cc/g greater than the 20 to 135 Å diameter mesopore volume of said initial zeolite.5. The method of claim 1 , wherein said initial zeolite is selected from the group consisting of zeolite A and zeolite X.6. The method of claim 1 , wherein said mesoporous zeolite is a mesostructured zeolite.7. The method of claim 1 , wherein said acid is present in an initial amount in the range of from about 1 to about 10 milliequivalents per gram of said initial zeolite.8. The method of claim 1 , wherein said acid is present in an initial amount in the range of from about 2 to ...

INTRODUCTION OF MESOPOROSITY INTO ZEOLITE MATERIALS WITH SEQUENTIAL ACID, SURFACTANT, AND BASE TREATMENT

Compositions and methods for introducing mesoporosity into zeolitic materials employing sequential acid, surfactant, and base treatments are disclosed herein. Mesopores can be introduced into zeolitic materials, such as zeolites, by treatment with an acid and surfactant followed by treatment with a base. The resulting mesoporous zeolitic materials can have a total 20 to 135 Å diameter mesopore volume of at least 0.05 cc/g. Additionally, the resulting mesoporous zeolitic materials can have a total 0 to 20 Å micropore volume of at least 0.10 cc/g. 1. A method of forming a material comprising a mesoporous zeolitic material having long-range crystallinity , said method comprising:(a) contacting an initial zeolitic material having long-range crystallinity with an acid to thereby form an acid-treated zeolitic material having long-range crystallinity;(b) contacting said acid-treated zeolitic material having long-range crystallinity with a surfactant to thereby form a first treatment mixture comprising said surfactant and an intermediate surfactant-treated material;(c) recovering at least a portion of said intermediate surfactant-treated material from said first treatment mixture thereby forming an at least partially isolated intermediate surfactant-treated material; and(d) contacting said at least partially isolated intermediate surfactant-treated material with a base thereby forming said mesoporous zeolitic material having long-range crystallinity.2. The method of claim 1 , wherein said mesoporous zeolitic material having long-range crystallinity has a total 20 to 135 Å diameter mesopore volume of at least 0.1 cc/g.3. The method of claim 1 , wherein said mesoporous zeolitic material having long-range crystallinity has a crystalline content of at least 40 weight percent as measured by X-ray diffraction (“XRD”).4. The method of claim 3 , wherein said mesoporous zeolitic material having long-range crystallinity exhibits said crystalline content after steaming at 1 claim 3 , ...

Glycoxy silanes as a source of silica and silicate precipitates

The present invention discloses glycoxy silanes as a source of silica and silica precipitated by advantageous chemical reactions preferably beginning with biogenic silica. Alkoxy C—O—S 1 are hydrolyzed in a controlled fashion to nucleate formation of nanoparticles of silica. The growth rate of the particles is controlled by various parameters such that particles of known sizes, size distributions, specific surface areas and pore sizes and size distributions are recovered.

Hydrocarbon Conversion Process Using a High Throughpout Process for Manufacturing Molecular Sieves

A method of crystallizing a crystalline molecular sieve having a pore size in the range of from about 2 to about 19 Å, said method comprising the steps of (a) providing a mixture comprising at least one source of ions of tetravalent element (Y), at least one hydroxide source (OH − ), and water, said mixture having a solid-content in the range of from about 15 wt. % to about 50 wt. %; and (b) treating said mixture to form the desired crystalline molecular sieve with stirring at crystallization conditions sufficient to obtain a weight hourly throughput from about 0.005 to about 1 hr −1 , wherein said crystallization conditions comprise a temperature in the range of from about 200° C. to about 500° C. and a crystallization time less than 100 hr.

Catalyst containing a modified y-type zeolite and a preparaton process thereof

The present invention discloses a catalytic cracking catalyst and a preparation process therefor. The catalytic cracking catalyst comprises a cracking active component, 10 wt %-70 wt % of a clay on the dry basis, and 10 wt %-40 wt % of an inorganic oxide binder (as oxide), relative to the weight of the catalytic cracking catalyst, wherein said cracking active component contains, relative to the weight of the catalytic cracking catalyst, 10 wt %-50 wt % of a modified Y-type zeolite on the dry basis and 0-40 wt % of other zeolite on the dry basis, wherein said modified Y-type zeolite is characterized by having a unit cell size of 2.420-2.440 nm; as percent by weight of the modified Y-type zeolite, a phosphorus content of 0.05-6%, a RE 2 O 3 content of 0.03-10%, and an alumina content of less than 22%; and a specific hydroxy nest concentration of less than 0.35 mmol/g and more than 0.05 mmol/g.

METHODS OF CONTROLLING POLYMORPHISM IN ORGANIC-FREE SYNTHESIS OF NA-ZEOLITES AND ZEOLITE CRYSTALS FORMED THEREFROM

Methods of controlling crystal polymorphism in organic-free synthesis of Na-Zeolites and the zeolite crystals formed using those methods are provided. The methods disclosed herein create certain types of zeolite crystals more efficiently than other previously known methods. The methods also create certain types of zeolite crystals in a form and concentration not previously disclosed. The methods disclosed herein generally comprise using solutions with varying ratios of silicon (Si), aluminum (Al), hydroxide (OH), and water. Some implementations of the invention disclosed include efficient methods of producing nearly pure cancrinite (CAN), methods of obtaining sodalite in solutions with a high Si/Al ratio, and a method of forming thin, platelet-like ANA crystals with a width of less than about 1 μm and a length of at least about 3 μm. 1. A method for forming cancrinite crystals , comprising: a Si/OH ratio of less than about 1; and', 'a Si/Al ratio of at least about 0.5 to 1., 'creating a solution comprising2. The method of wherein the Si/Al ratio is between about 0.5 to 1 and about 20 to 1.3. The method of claim 1 , wherein the creating a solution comprises mixing a hydroxide source claim 1 , a solvent claim 1 , and a framework source precursor selected from an alumina source claim 1 , a silica source claim 1 , and combinations thereof.4. The method of claim 3 , wherein the silica source is selected from the group consisting of colloidal silica claim 3 , fumed silica claim 3 , silica salts claim 3 , metallic silicates claim 3 , hydrates thereof claim 3 , derivatives thereof claim 3 , and combinations thereof.5. The method of claim 3 , wherein the framework source precursor is selected from the group consisting of: silica source claim 3 , alumina source claim 3 , silicoaluminate source claim 3 , silicoaluminophosphate source claim 3 , derivatives thereof claim 3 , and combinations thereof.6. A method for forming sodalite crystals claim 3 , comprising: [{'sub': '2', 'a ...

Pharmaceutical compound which includes clinoptilolite

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

MOLECULAR SIEVE SSZ-95, METHOD OF MAKING, AND USE

A new crystalline molecular sieve designated SSZ-95 is disclosed. In general, SSZ-95 is synthesized from a reaction mixture suitable for synthesizing MTT-type molecular sieves and maintaining the mixture under crystallization conditions sufficient to form product. The product molecular sieve is subjected to a pre-calcination step, and ion-exchange to remove extra-framework cations, and a post-calcination step. The molecular sieve has a MTT-type framework and a H-D exchangeable acid site density of 0 to 50% relative to molecular sieve SSZ-32. 1. A molecular sieve having a MTT-type framework , a mole ratio of 20 to 70 of silicon oxide to aluminum oxide , a total micropore volume of between 0.005 and 0.02 cc/g; and a H-D exchangeable acid site density of up to 50% relative to SSZ-32.2. The molecular sieve of claim 1 , wherein the molecular sieve has a mole ratio of 20 to 50 of silicon oxide to aluminum oxide.3. The molecular sieve of claim 1 , wherein the molecular sieve has a total micropore volume of between 0.008 and 0.018 cc/g.4. The molecular sieve of claim 1 , wherein the molecular sieve has an external surface area of between 200 and 250 m/g; and a BET surface area of between 240 and 280 m/g.5. The molecular sieve of claim 1 , wherein the molecular sieve has a H-D exchangeable acid site density of 0.5 to 30% relative to molecular sieve SSZ-32.6. The molecular sieve of claim 5 , wherein the molecular sieve has a total micropore volume of between 0.008 and 0.018 cc/g.7. The molecular sieve of claim 5 , wherein the molecular sieve has an external surface area of between 200 and 250 m/g; and a BET surface area of between 240 and 280 m/g.8. The molecular sieve of claim 1 , wherein the molecular sieve has a H-D exchangeable acid site density of 2 to 25% relative to molecular sieve SSZ-32.9. The molecular sieve of claim 8 , wherein the molecular sieve has a total micropore volume of between 0.008 and 0.018 cc/g.10. The molecular sieve of claim 8 , wherein the molecular ...

MOLECULAR SIEVE SSZ-91, METHODS FOR PREPARING SSZ-91, AND USES FOR SSZ-91

A family of new crystalline molecular sieves designated SSZ-91 is disclosed, as are methods for making SSZ-91 and uses for SSZ-91. Molecular sieve SSZ-91 is structurally similar to sieves falling within the ZSM-48 family of molecular sieves, and is characterized as: (1) having a low degree of faulting, (2) a low aspect ratio that inhibits hydrocracking as compared to conventional ZSM-48 materials having an aspect ratio of greater than 8, and (3) is substantially phase pure. 1. A molecular sieve belonging to the ZSM-48 family of zeolites , wherein the molecular sieve comprises:a silicon oxide to aluminum oxide mole ratio of 40 to 200,at least 70% polytype 6 of the total ZSM-48-type material present in the product, andan additional EUO-type molecular sieve phase in an amount of between 0 and 3.5 percent by weight of the total product; andwherein the molecular sieve has a morphology characterized as polycrystalline aggregates comprising crystallites collectively having an average aspect ratio of between 1 and 8.3. The molecular sieve of or , wherein the molecular sieve has a silicon oxide to aluminum oxide mole ratio of 70 to 160.4. The molecular sieve of any of - , wherein the molecular sieve has a silicon oxide to aluminum oxide mole ratio of 80 to 140.5. The molecular sieve of any of - , wherein the molecular sieve comprises at least 80% polytype 6 of the total ZSM-48-type material present in the product.6. The molecular sieve of any of - , wherein the molecular sieve comprises between 0.1 and 2 wt. % EU-1.7. The molecular sieve of any of - , wherein the crystallites collectively have an average aspect ratio of between 1 and 5.8. The molecular sieve of any of - , wherein the molecular sieve comprises at least 90% polytype 6 of the total ZSM-48-type material present in the product.9. The molecular sieve of any of - , wherein the crystallites collectively have an average aspect ratio of between 1 and 3.10. A method of preparing a molecular sieve according to any of - ...

Molecular sieves with a linde type a topology and related methods and systems

A method for preparing molecular sieves with a Linde Type A (LTA) topology structure, and molecular sieves obtained thereby are described wherein a structure directing agent comprising a triquaternary cation is contacted with a source of a first oxide of a first tetravalent element or a source of a first oxide of a trivalent element; and a source of an oxide of a pentavalent elements.

Systems for acid digestion processes

A system for recovering rare earth elements from coal ash includes a leaching reactor, an ash dryer downstream of the leaching reactor, and a roaster downstream of the ash dryer that is cooperatively connected to both the leaching reactor and the ash dryer. Coal ash is mixed with an acid stream such that rare earth elements present in the coal ash are dissolved in the acid stream, thereby creating (i) a leachate containing the rare earth elements and (ii) leached ash. The leachate is heated to obtain acid vapor and an acid-soluble rare earth concentrate. Mixing of the coal ash with the acid stream can occur in a leaching reactor and heating of the leachate can occur in a roaster. The acid-soluble rare earth concentrate can be fed to a hydrometallurgical process to separate and purify the rare earth elements.

METHODS FOR RECOVERY OF RARE EARTH ELEMENTS FROM COAL

Methods of recovering rare earth elements, vanadium, cobalt, or lithium from coal are described. The coal is dissolved in a first solvent to dissolve organic material in the coal and create a slurry containing coal ash enriched with rare earth elements, vanadium, cobalt, or lithium. The enriched coal ash is separated from the first solvent. Residual organic material is removed from the coal ash. The rare earth elements, vanadium, cobalt, or lithium can then be recovered from the coal ash. The coal ash is mixed with an acid stream that dissolves the rare earth elements, thereby creating (i) a leachate containing the rare earth elements and (ii) leached ash. The leachate is heated to obtain acid vapor and an acid-soluble rare earth concentrate. The acid-soluble rare earth concentrate can be fed to a hydrometallurgical process to separate and purify the rare earth elements. 1. A method of recovering rare earth elements from coal , comprising:dissolving coal in a first solvent to dissolve organic material in the coal and create a slurry containing coal ash enriched with rare earth elements;separating the coal ash from the first solvent;removing residual organic material from the coal ash; andrecovering the rare earth elements from the coal ash.2. The method of claim 1 , wherein the first solvent is a bio-based hydrogen transfer solvent.3. The method of claim 1 , wherein the first solvent is soybean oil.4. The method of claim 1 , wherein the residual organic material is removed from the coal ash by washing the coal ash with a second solvent that is different from the first solvent.5. The method of claim 4 , wherein the second solvent is tetrahydrofuran.6. The method of claim 1 , wherein the residual organic material is removed from the coal ash by burning the coal ash at a temperature of about 300° C. to about 600° C.; orwherein the residual organic material is removed from the coal ash by comminution, froth flotation, or gravimetric separation.7. The method of claim 1 , ...

Microporous Zirconium Silicate for the Treatment of Hyperkalemia

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

PROCESS FOR CONTINUOUSLY SYNTHESIZING ZEOLITE CRYSTALS

The present invention relates to a process for preparing zeolite crystals continuously, comprising the continuous introduction of a composition capable of generating zeolite crystals into at least one crystallization reaction zone subjected to stirring means, giving said composition a flow characterized by a relative Reynolds number Reof between 40 and 50 000, and the continuous recovery of the crystals formed according to a flow characterized by a net Reynolds number Reof between 1 and 1500. 1. Process for preparing zeolite crystals continuously , comprising at least the following steps:a) continuous supply of a composition capable of generating zeolite crystals;{'sub': 'r', 'b) continuous introduction of said composition into at least one crystallization reaction zone subjected to stirring means, giving said composition a flow characterized by a relative Reynolds number Reof between 40 and 50 000, limits included,'}{'sub': 'n', 'c) continuous recovery of the crystals formed in step b) according to a flow characterized by a net Reynolds number Reof between 1 and 1500, limits included.'}2. Process according to claim 1 , wherein the difference between the relative Reynolds number Reand the net Reynolds number Reis greater than 50.3. Process according to claim 1 , for preparing crystals of a zeolite of MFI type claim 1 , a zeolite of MOR type claim 1 , of OFF type claim 1 , of MAZ type claim 1 , of CHA type and of HEU type claim 1 , a zeolite of FAU type claim 1 , a zeolite of EMT type or a zeolite of LTA type claim 1 , and also the other zeotypes.4. Process according to claim 3 , for preparing zeolite crystals claim 3 , where the zeolite is chosen from zeolites of MFI type claim 3 , of FAU type claim 3 , of LTA type claim 3 , the zeolites of CHA type and the zeolites of HEU type.5. Process according to claim 1 , comprising at least the following steps:1) continuous preparation of a composition capable of generating zeolite crystals, in order to obtain a synthesis ...

METHODS FOR PRODUCING HIERARCHICAL MESOPOROUS BETA ZEOLITE

A method for producing a hierarchical mesoporous beta includes mixing a beta zeolite with an aqueous metal hydroxide solution and heating the beta zeolite and the aqueous metal hydroxide mixture to produce a desilicated beta zeolite, contacting the desilicated beta zeolite with an ammonium salt solution to produce an intermediate hierarchical mesoporous beta zeolite, and treating the intermediate hierarchical mesoporous beta zeolite with an acidic solution to produce the hierarchical mesoporous beta zeolite. The hierarchical mesoporous beta zeolite includes a molar ratio of silicon to aluminum of greater than 12.5, a total pore volume of greater than or equal to the total pore volume of the intermediate hierarchical mesoporous beta zeolite, and an average mesopore size of greater than or equal to the average mesopore size of the hierarchical mesoporous beta zeolite. The method may also include calcining the intermediate hierarchical mesoporous beta zeolite. 1. A method for producing a hierarchical mesoporous beta zeolite , the method comprising:mixing a beta zeolite with an aqueous metal hydroxide solution;heating the beta zeolite and the aqueous metal hydroxide mixture at a temperature of greater than or equal to 100° C., wherein the heating causes desilication of the beta zeolite to produce a desilicated beta zeolite;{'sup': '3', 'contacting the desilicated beta zeolite with an ammonium salt solution to produce an intermediate hierarchical mesoporous beta zeolite comprising (a) a molar ratio of silicon to aluminum of less than 12.5, (b) a total pore volume of greater than or equal to 0.3 cm/g, and (c) an average mesopore size of greater than 8 nm, wherein the contacting causes ion exchange of sodium ions with ammonium ions in the intermediate hierarchical mesoporous beta zeolite; and'}treating the intermediate hierarchical mesoporous beta zeolite with an acidic solution to produce the hierarchical mesoporous beta zeolite comprising (e) a molar ratio of silicon to ...

High-efficiency, fast and green method for preparing zeolite molecular sieve

A method for preparing a zeolite molecular sieve includes the steps of: (1) mixing at least one of a silicon source, an aluminum source and a phosphorus source with an alkaline substance, a template agent and water uniformly to obtain a zeolite molecular sieve precursor solution; aging the zeolite molecular sieve precursor solution at 20-30° C. for 10-15 h; and subjecting the aged solution to ionizing radiation, and then washing the obtained solid to neutrality and drying to obtain the zeolite molecular sieve. The method of the present invention is green, simple and extremely cost-effective. Under the irradiation of an ionizing radiation source, the synthesis period of zeolite molecular sieve is short and no heating is needed in the preparation process, so energy consumption is reduced and a high-pressure system is avoided.

METHOD FOR TREATING ENGINE EXHAUST BY USE OF HYDROTHERMALLY STABLE, LOW-TEMPERATURE NOx REDUCTION NH3-SCR CATALYSTS

A catalyst composition includes a heterobimetallic zeolite characterized by a chabazite structure loaded with copper ions and at least one trivalent metal ion other than Al 3+ . The catalyst composition decreases NO x emissions in diesel exhaust and is suitable for operation in a catalytic converter.

A PROCESS FOR PREPARING A ZEOLITIC MATERIAL HAVING FRAMEWORK TYPE AEI

A process for preparing a zeolitic material having framework type AEI and having a framework structure which comprises a tetravalent element Y, a trivalent element X, and oxygen, said process comprising (i) providing a zeolitic material having framework type CHA and having a framework structure comprising the tetravalent element Y, the trivalent element X, and oxygen; (ii) preparing a synthesis mixture comprising the zeolitic material provided in (i), water, a source of the tetravalent element Y other than the zeolitic material provided in (i), and an AEI framework structure directing agent; (iii) subjecting the synthesis mixture prepared in (ii) to hydrothermal synthesis conditions comprising heating the synthesis mixture to a temperature in the range of from 100 to 200° C. and keeping the synthesis mixture at a temperature in this range under autogenous pressure, obtaining the zeolitic material having framework type AEI; wherein Y is one or more of Si, Ge, Sn, Ti, Zr; wherein X is one or more of Al, B, Ga, In; wherein in the framework structure of the zeolitic material provided in (i), the molar ratio Y:X, calculated as YO:XO, is at most 20:1. 1. A process for preparing a zeolitic material having framework type AEI and having a framework structure which comprises a tetravalent element Y , a trivalent element X. and oxygen , said process comprising(i) providing a zeolitic material having framework type CHA and having a framework structure comprising the tetravalent element Y, the trivalent element X, and oxygen;(ii) preparing a synthesis mixture comprising the zeolitic material provided in (i), water, a source of the tetravalent element Y other than the zeolitic material provided in (i), and an AEI framework structure directing agent;(iii) subjecting the synthesis mixture prepared in (ii) to hydrothermal synthesis conditions comprising heating the synthesis mixture to a temperature in the range of from 100 to 200° C. and keeping the synthesis mixture at a ...

SYNTHESIS OF HIGH SILICA ZEOLITE VIA INTERZEOLITE TRANSFORMATION WITHOUT OSDAs

Provided is a method for preparing a zeolite having a Si/Al ratio of at least 10 by interzeolite transformation in the absence of an organic structure directing agent. The method is more cost effective and less equipment intensive as it eliminates the costly organic structure directing agent and the waste treatment at the plant. 1. A method of preparing a zeolite having a Si/Al ratio of at least 10 , which comprises:a. providing a first zeolite, andb. converting the first zeolite to a second zeolite having a higher framework density than the first zeolite and a Si/Al ratio of at least 10, in the absence of an organic structure directing agent (OSDA).2. The method of claim 1 , wherein seed crystals of the second zeolite are added to the first zeolite prior to or during the conversion.3. The method of claim 1 , wherein the conversion is achieved by hydrothermal synthesis.4. The method of claim 1 , wherein the conversion is achieved in a basic solution.5. The method of claim 4 , wherein the pH of the basic solution is in the range of from greater than 7 up to 13.6. The method of claim 5 , wherein the pH of the basis solution is in the range of from greater than 7 up to 11.7. The method of claim 3 , wherein the temperature of the conversion is above the crystallization temperature of the first zeolite.8. The method of claim 1 , wherein the temperature of the conversion is in the range of about 130 to about 160° C.9. The method of claim 1 , wherein the Si/Al ratio of the second zeolite is in the range of from 11 to 25.10. The method of claim 1 , wherein the Si/Al ratio of the second zeolite is at least 40.11. The method of claim 1 , wherein the first zeolite comprises BEA or FAU.12. The method of wherein the second zeolite comprises a MFI claim 1 , CHA claim 1 , STF or MTW zeolite.13. The method of claim 1 , wherein the second zeolite comprises ZSM-5 claim 1 , SSZ-35 claim 1 , ZSM-12 or chabazite.14. The method of claim 1 , wherein the first zeolite comprises FAU having ...

Method for Manufacturing Graphene Composite Film

A method for manufacturing a graphene composite film includes preparing a zeolite suspension containing zeolite nanocrystals with a concentration of 50-100 ppm and with a particle size of 50-80 nm. The zeolite suspension has a pH value of 11-13. A graphene oxide suspension containing graphene oxide with a concentration of 50-200 ppm is mixed with the zeolite suspension to form a composite solution. The composite solution is transferred into a 15° C. water bath when a color of the composite solution turns from brownish-yellow into deep brown. A surfactant is added into the composite solution in the 15° C. water bath. The composite solution is then sonicated for 5-30 minutes and removed out of the 15° C. water bath, with the color of the composite solution turning from deep brown into black. The composite solution is further processed to form a graphene composite film having not more than 5 layers. 1. A method for manufacturing a graphene composite film , comprising:(a) preparing a zeolite suspension containing zeolite nanocrystals with a concentration of 50-100 ppm, wherein a particle size of the zeolite nanocrystals is 50-80 nm, and wherein the zeolite suspension has a pH value of 11-13;(b) preparing a graphene oxide suspension containing graphene oxide with a concentration of 50-200 ppm;(c) mixing the graphene oxide suspension with the zeolite suspension according to a volume ratio of 1:1 to 9:1 to form a composite solution and transferring the composite solution into a 15° C. water bath when a color of the composite solution turns from brownish-yellow into deep brown;(d) adding a surfactant into the composite solution in the 15° C. water bath;(e) sonicating the composite solution after step (d) for 5-30 minutes and removing the composite solution out of the 15° C. water bath, with the color of the composite solution turning from deep brown into black;(f) atomizing the composite solution after step (e) to form atomized droplets;(g) treating the atomized droplets ...

PROCESS FOR THE PREPARATION OF A DEALUMINATED ZEOLITIC MATERIAL HAVING THE BEA FRAMEWORK STRUCTURE

The present invention relates to a method for the preparation of a treated zeolitic material having a BEA framework structure comprising the steps of: (i) providing a zeolitic material having a BEA framework structure, wherein the BEA framework structure comprises YO2 and X2O3, wherein Y is a tetravalent element, and X is a trivalent element, and wherein the zeolitic material having a BEA framework structure is obtainable and/or obtained from an organotemplate-free synthetic process; (ii) calcining the zeolitic material provided in step (i) at a temperature of 650° C. or more; and (iii) treating the calcined zeolitic material obtained from step (ii) with an aqueous solution having a pH of 5 or less, as well as to zeolitic materials per se preferably obtainable according to the inventive method and to their use, and to a process for converting oxygenates to olefins employing the inventive zeolitic materials. 1. A method for the preparation of a treated zeolitic material having a BEA framework structure comprising the steps of:{'sub': 2', '2', '3, '(i) providing a zeolitic material having a BEA framework structure, wherein the BEA framework structure comprises YOand XO, wherein Y is a tetravalent element, and X is a trivalent element, and wherein the zeolitic material having a BEA framework structure is obtainable and/or obtained from an organotemplate-free synthetic process;'}(ii) calcining the zeolitic material provided in step (i) at a temperature of 650° C. or more; and(iii) treating the calcined zeolitic material obtained from step (ii) with an aqueous solution having a pH of 5 or less.2. The method of claim 1 , wherein in step (ii) the zeolitic material provided in step (i) is calcined at a temperature comprised in the range of from 680° C. to 1000° C.3. The method of claim 1 , wherein calcining in step (ii) is conducted in an atmosphere containing 10 wt.-% or less of water.4. The method of claim 1 , wherein Y is selected from the group consisting of Si claim 1 ...

OLIGOMERIZATION OF ETHYLENE TO LIQUID TRANSPORTATION FUELS WITH POST SYNTHESIS TREATED ZSM-5 CATALYST

A process for post synthesis treatment of ZSM-5 catalyst for converting ethylene to liquid fuel products providing substantially improved catalyst life. The treatment comprises either a base treatment, an acid treatment or a two-step treatment where one is with an acid and the other is with a base. The base treatment is provided by a weak sodium hydroxide such as less than 1 Molar concentration. The acid treatment is stronger acid where, for example, a hydrogen chloride solution at greater than 2 Molar concentration is used. 1. Oligomerizing ethylene to transportation fuel products in a reactor with a fixed bed of ZSM-5 catalyst that is essentially free of catalyst metals other than silica and alumina wherein the ZSM-5 catalyst has been provided with post synthesis two step treatment of an acid wash and a base wash to resist coke formation in the zeolite crystallites and extend catalyst life wherein the oligomerizing is conducted at a pressure between 0 psig and 800 psig , a temperature of between 260° C. and 420° C. , and a gas hourly space velocity of between 1000 and 5000 inverse hours and wherein at least 85% of the ethylene is converted.2. The process according to wherein the post synthesis treatment of the catalyst comprises catalyst a base treatment with sodium hydroxide and an acid treatment of hydrogen chloride.3. The process according to wherein the base treatment of sodium hydroxide is at between about 0.001 and about 0.5 Molar concentration.4. The process according to wherein the base treatment of sodium hydroxide is at between about 0.005 and about 0.25 Molar concentration.5. The process according to wherein the base treatment of sodium hydroxide is at between about 0.0075 and about 0.15 Molar concentration.6. The process according to wherein the acid treatment of hydrogen chloride is at between about 1 and 10 Molar concentration.7. The process according to wherein the acid treatment of hydrogen chloride is at between about 2 and 7 Molar concentration.8 ...

OLIGOMERIZATION OF ETHYLENE TO LIQUID TRANSPORTATION FUELS WITH POST SYNTHESIS TREATED ZSM-5 CATALYST

A process for post synthesis treatment of ZSM-5 catalyst for converting ethylene to liquid fuel products providing substantially improved catalyst life. The treatment comprises either a base treatment, an acid treatment or a two-step treatment where one is with an acid and the other is with a base. The base treatment is provided by a weak sodium hydroxide such as less than 1 Molar concentration. The acid treatment is stronger acid where, for example, a hydrogen chloride solution at greater than 2 Molar concentration is used. 1. Oligomerizing ethylene to transportation fuel products in a reactor with a fixed bed of ZSM-5 catalyst that is essentially free of catalyst metals other than silica and alumina wherein the ZSM-5 catalyst has been provided with post synthesis acid treatment to resist coke formation in the zeolite crystallites and extend catalyst life wherein the oligomerizing is conducted at a pressure between 0 psig and 800 psig , a temperature of between 260° C. and 420° C. , and a gas hourly space velocity of between 1000 and 5000 inverse hours wherein at least 85% of the ethylene is converted.2. The process according to wherein the post synthesis treatment of the catalyst comprises catalyst an acid treatment with hydrogen chloride.3. The process according to wherein the acid treatment is a hydrogen chloride solution at between about 1 and 10 Molar concentration.4. The process according to wherein the acid treatment is between about 2 and 7 Molar concentration.5. The process according to wherein the acid treatment is between about 3 and 5 Molar concentration.6. The process according to wherein the post synthesis treatment of the catalyst further comprises the steps of drying catalyst and calcining the catalyst after the acid treatment.7. The process according to wherein the post synthesis treatment of the catalyst further comprises the steps of drying catalyst at a temperature above 105° C. and calcining the catalyst after the acid treatment at a ...

OLIGOMERIZATION OF ETHYLENE TO LIQUID TRANSPORTATION FUELS WITH POST SYNTHESIS TREATED ZSM-5 CATALYST

A process for post synthesis treatment of ZSM-5 catalyst for converting ethylene to liquid fuel products providing substantially improved catalyst life. The treatment comprises either a base treatment, an acid treatment or a two-step treatment where one is with an acid and the other is with a base. The base treatment is provided by a weak sodium hydroxide such as less than 1 Molar concentration. The acid treatment is stronger acid where, for example, a hydrogen chloride solution at greater than 2 Molar concentration is used. 1. Oligomerizing ethylene to transportation fuel products in a reactor with a fixed bed of ZSM-5 catalyst that is essentially free of catalyst metals other than silica and alumina wherein the ZSM-5 catalyst has been provided with post synthesis treatment of a base wash to resist coke formation in the zeolite crystallites and extend catalyst life wherein the oligomerizing is conducted at a pressure between 0 psig and 800 psig , a temperature of between 260° C. and 420° C. , and a gas hourly space velocity of between 1000 and 5000 inverse hours and wherein at least 85% of the ethylene is converted.2. The process according to wherein the post synthesis treatment of the catalyst comprises catalyst a base treatment with sodium hydroxide.3. The process according to wherein the base treatment is with a solution of sodium hydroxide at between about 0.001 and about 0.5 Molar concentration.4. The process according to wherein the base treatment is with a solution of sodium hydroxide at between about 0.005 and about 0.25 Molar concentration.5. The process according to wherein the base treatment is with a solution of sodium hydroxide at between about 0.0075 and about 0.15 Molar concentration.6. The process according to wherein the post synthesis treatment of the catalyst further comprises the steps of drying catalyst and calcining the catalyst after the base-acid treatment.7. The process according to wherein the post synthesis treatment of the catalyst ...

METHOD AND SYSTEM FOR ADJUSTING REDUCTANT DELIVERY INTO A SELECTIVE CATALYTIC REDUCTION WITH A FILTER (SCRF) DEVICE

A method of adjusting reductant injection for a selective catalyst reduction device with a soot filter (SCRF) includes calculating, through a processor, an amount of soot in the SCRF, determining, through the processor, a shrinking core model of the SCRF based on the amount of soot, calculating, with the processor using the shrinking core model, an amount of reductant to inject into the SCRF, and injecting the amount of reductant into the SCRF. 1. A method of adjusting reductant injection for a selective catalyst reduction device with a soot filter (SCRF) comprising:calculating, through a processor, an amount of soot in the SCRF;determining, through the processor, a shrinking core model of the SCRF based on the amount of soot;calculating, with the processor using the shrinking core model, an amount of reductant to inject into the SCRF; andinjecting the amount of reductant into the SCRF.2. The method of claim 1 , wherein calculating the amount of soot includes determining a pressure change across the SCRF.3. The method of claim 1 , wherein determining the shrinking core model includes modeling an artificial flow rate of exhaust gases flowing through the SCRF.4. The method of claim 1 , wherein determining the shrinking core model includes determining a desorption amount of ammonia in the SCRF claim 1 , and applying a shrinking core adjustment factor to the desorption amount.5. The method of claim 1 , wherein calculating the amount of reductant to inject includes calculating a reductant adjustment using the shrinking core model.6. A reductant injection control module comprising: calculate an amount of soot in the SCRF;', 'determine a shrinking core model of the SCRF based on the amount of soot;, 'a control module including a processor and a non-volatile memory including a set of instructions which, when executed, causes the processor tocalculate using the shrinking core model, an amount of reductant to inject into the SCRF; andcontrol injection of the amount of ...

FILTRATION MATERIAL FOR FILTERED VENTING, AND FILTERED VENTING DEVICE

Provided are a filtration material for filtered venting and a filtered venting device that are more effective in adsorbing radioactive iodine than in the conventional art and are useful for addressing severe accidents. The filtration material for filtered venting comprises granulated zeolite L, wherein at least a portion of the ion exchange sites of the zeolite L are substituted with silver. Of the ion exchange sites, a constitution ratio (a/b) of ion exchange sites (a) substituted with silver to ion exchange sites (b) not substituted with silver is 25/75-55/45. The zeolite L has a silver content of 7-12 wt % on a dry weight basis. 1. A filtration material for filtered venting comprising granulated zeolite L , whereinat least a portion of ion exchange sites of the zeolite L are substituted with silver.2. The filtration material for filtered venting of claim 1 , whereinof the ion exchange sites, a constitution ratio (a/b) of ion exchange sites (a) substituted with silver to ion exchange sites (b) not substituted with silver is 25/75-55/45.3. The filtration material for filtered venting of claim 1 , whereinthe zeolite L has a silver content of 7-12 wt % on a dry weight basis.4. The filtration material for filtered venting of claim 1 , whereinthe filtration material for filtered venting has a thickness of two inches or more.5. The filtration material for filtered venting of claim 1 , whereinthe filtration material for filtered venting is used at a temperature of 99° C. or more.6. A filtered venting device for continuously treating radioactive iodine claim 1 , wherein{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a silver-containing filtration material containing zeolite X, substantially all ion exchange sites of the zeolite X being substituted with silver, is provided upstream of the filtration material for filtered venting of .'} The present invention relates to a granulated filtration material (filler) for filtered venting which contains zeolite L, and a filtered ...

PROCESS FOR PREPARATION OF ZEOLITIC MATERIAL

The present invention relates to a process for process for the preparation of a zeolitic material which process comprises (i) providing a boron-containing zeolitic material and (ii) deboronating the boron-containing zeolitic material by treating the boron-containing zeolitic material with a liquid solvent system thereby obtaining a deboronated zeolitic material, which liquid solvent system does not contain an inorganic or organic acid, or a salt thereof. 1. A process for the preparation of a zeolitic material , comprising:(i) providing a boron-containing zeolitic material of a structure MWW or BEA;(ii) deboronating the boron-containing zeolitic material with a liquid solvent system at a temperature in the range of from 50 to 125° C. thereby obtaining a deboronated zeolitic material of the structure MWW or BEA;wherein the liquid solvent system is water, andwherein said liquid solvent system does not contain an inorganic or organic acid or a salt thereof, the acid being selected from the group consisting of hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, formic acid, acetic acid, propionic acid, oxalic acid, and tartaric acid.24-. (canceled)5. The process of claim 1 , wherein in (i) claim 1 , the boron-containing zeolitic material is provided by a process comprising(a) hydrothermally synthesizing the boron-containing zeolitic material from a synthesis mixture containing at least one silicon source, at least one boron source, and at least one template compound, to obtain the boron-containing zeolitic material in its mother liquor;(b) separating the boron-containing zeolitic material from its mother liquor;(c) drying the boron-containing zeolitic material separated according to (b);(d) calcining the boron-containing zeolitic material obtained from (b) or (c).6. (canceled)7. The process of claim 1 , wherein the boron-containing zeolitic material provided in (i) is an aluminum-free zeolitic material.8. The process of claim 1 , wherein the boron-containing ...

MOLECULAR SIEVE SSZ-120, ITS SYNTHESIS AND USE

A small crystal size, high surface area aluminogermanosilicate molecular sieve material, designated SSZ-120, is provided. SSZ-120 can be synthesized using 3,3′-[2,6-naphthalenebis(methylene)]bis[1,2-dimethyl-1H-imidazolium] dications as a structure directing agent. SSZ-120 may be used in organic compound conversion reactions and/or sorptive processes. 2. The organic nitrogen compound of claim 1 , wherein the dication is associated with anionic counterion selected from hydroxide claim 1 , chloride claim 1 , bromide claim 1 , or a combination thereof. This application is a divisional application of U.S. patent application Ser. No. 17/323,005 filed on May 18, 2021, which claims priority to and the benefit of U.S. Provisional Application Ser. No. 63/028,642 filed on May 22, 2020.This disclosure relates to a small crystal size, high surface area aluminogermanosilicate molecular sieve designated SSZ-120, its synthesis, and its use in organic compound conversion reactions and sorption processes.Molecular sieves are a commercially important class of materials that have distinct crystal structures with defined pore structures that are shown by distinct X-ray diffraction (XRD) patterns and have specific chemical compositions. The crystal structure defines cavities and pores that are characteristic of the specific type of molecular sieve.According to the present disclosure, a small crystal size, high surface area aluminogermanosilicate molecular sieve, designated SSZ-120 and having a unique powder X-ray diffraction pattern, has been synthesized using 3,3′-[2,6-naphthalenebis(methylene)]bis[1,2-dimethyl-1H-imidazolium] dications as a structure directing agent.In a first aspect, there is provided an aluminogermanosilicate molecular sieve having, in its calcined form, a powder X-ray diffraction pattern including the peaks in the following table:The calcined molecular sieve can have a total surface area (as determined by the t-plot method for nitrogen physisorption) of at least ...

LOW-FREQUENCY IMPROVEMENT MATERIAL AND SPEAKER SYSTEM USING SAME

The present disclosure provides an low-frequency improvement material. The low-frequency improvement material comprises a plurality of zeolite particles which comprises a plurality of zeolite grains, the zeolite grains comprises a plurality of zeolite crystallites, the zeolite crystallite comprises frameworks and extra-framework cations, the skeleton comprises SiO2 and MxOy containing element M, the average crystalline size of the zeolite crystallite ranges from 5 nm to 75 nm. The present disclosure also provides the low frequency speaker system improved materials applications. Improving material of the present disclosure provides low frequency and low frequency applications the material is improved speaker system can further improve the performance of the speaker system, the molecular sieve to reduce failure, improve performance stability Ascension speaker system. 1. A low-frequency improvement material , comprising a plurality of zeolite particles which comprises a plurality of zeolite grains , the zeolite grains comprises a plurality of zeolite crystallites , the zeolite crystallite comprises frameworks and extra-framework cations , the skeleton comprises SiOand MxOy containing element M , the average crystalline size of the zeolite crystallite ranges from 5 nm to 75 nm.2. The low-frequency improvement material as described in claim 1 , wherein the average crystallite size of the zeolite crystallites is between 15 nm and 55 nm.3. The low-frequency improvement material as described in claim 2 , wherein the average crystallite size of the zeolite crystallites is between 20 nm and 50 nm.4. The low-frequency improvement material as described in claim 1 , wherein the grain size of the zeolite grains is between 10 nm and 10 um.5. The low-frequency improvement material as described in claim 4 , wherein the grain size of the zeolite grains is between 20 nm and 8 um.6. The low-frequency improvement material as described in claim 5 , wherein the grain size of the zeolite ...

Catalyzed Alkylation, Alkylation Catalysts, and Methods of Making Alkylation Catalysts

Improved alkylation catalysts, alkylation methods, and methods of making alkylation catalysts are described. The alkylation method comprises reaction over a solid acid, zeolite-based catalyst and can be conducted for relatively long periods at steady state conditions. The alkylation catalyst comprises a crystalline zeolite structure, a Si/Al molar ratio of 20 or less, less than 0.5 weight percent alkali metals, and further having a characteristic catalyst life property. Some catalysts may contain rare earth elements in the range of 10 to 35 wt %. One method of making a catalyst includes a calcination step following exchange of the rare earth element(s) conducted at a temperature of at least 575° C. to stabilize the resulting structure followed by an deammoniation treatment. An improved method of deammoniation uses low temperature oxidation.

PURIFICATION OF CLINOPTILOLITE

Zeolites for extraction of heavy metals are given enhanced purification in a first method stage and further processed in a second method stage to form liquid and solid phases including swollen clinoptilolite fragments ranging from 200 to 2000 Daltons and formed as liposomes and usable to substantially reduce heavy metal ppm burdens for purposes of safe ingestion by mammals and reduction of heavy metal contaminants of gut, vascular and lymphatic systems of a mammalian host. 1. A method of purification of clinoptilolite comprising:reaction with an agent selected from the group consisting of EDTA, flavonoids, alkaloids, terpenes, n-acetyl cysteine and zinc-lipoate followed by strong reducing agent to reduce its heavy metal burden by a fraction of at least 2× in solid and liquid phases.2. A method of purification and fragmentation of clinoptilolite comprising the steps of:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a) performing the reaction of ; and'}b) performing a further reaction to create a molecular liposomal form of the clinoptilolite with molecular fragments.3. A molecular clinoptilolite product as made by the method of .4. A molecular fragmented clinoptilolite product as made by the process of .5. A method of cleansing metal toxins from a mammalian host by administering the product of .6. A method of cleansing metal toxins from a mammalian host by administering the product of . This application is a continuation in part of International Application PCT/US2019/027262, filed Apr. 12, 2019, which claims the benefit and priority under 35 U.S.C. § 119(e) to U.S. Provisional Application No. 62/656,554, filed on Apr. 12, 2018, entitled, “PURIFICATION OF CLINOPTILOLITE.” The entire contents of these patent applications are hereby incorporated by reference herein.The present invention relates to zeolites useful as cation exchangers for capturing GI tract (gut) and vascular and lymphatic systems toxic contaminants (toxins) and enhancing ability for such usage and ...

METHOD FOR PRODUCING METAL-SUPPORTED ZEOLITE FOR ALCOHOLIC BEVERAGES, METAL-SUPPORTED ZEOLITE FOR ALCOHOLIC BEVERAGES, AND METHOD FOR PRODUCING ALCOHOLIC BEVERAGES

The invention is to provide a method for producing a metal-supported zeolite for alcoholic beverages capable of efficiently removing unwanted components contained in alcoholic beverages to thereby reduce silver release, and the metal-supported zeolite for alcoholic beverages, and to provide a method for producing alcoholic beverages using the metal-supported zeolite for alcoholic beverages. For solution to problem, the production method for the metal-supported zeolite for alcoholic beverages of the invention is a production method for a metal-supported zeolite for alcoholic beverages for removing unwanted components contained in alcoholic beverages, and includes a first ion-exchange treatment step of processing a zeolite carrying a metal ion with an ammonium ion-containing aqueous solution to thereby exchange the metal ion in the zeolite for an ammonium ion, the zeolite containing a Y-type zeolite as the main ingredient, and a second ion-exchange treatment step of processing the ammonium ion-supported zeolite obtained in the previous ion-exchange treatment step with a silver ion-containing acidic aqueous solution to thereby exchange the ammonium ion therein with a silver ion. 1. A method for producing a metal-supported zeolite , comprising:performing a first ion-exchange treatment comprising processing a zeolite carrying a metal ion with an ammonium ion-containing aqueous solution to thereby exchange the metal ion in the zeolite for an ammonium ion, the zeolite comprising a Y-type zeolite as the main ingredient, andperforming a second ion-exchange treatment comprising processing the ammonium ion-supported zeolite obtained in the previous ion-exchange treatment with a silver ion-containing acidic aqueous solution to thereby exchange the ammonium ion therein with a silver ion.2. The method according to claim 1 , wherein the ammonium ion-containing aqueous solution is selected from the group consisting of an aqueous ammonium nitrate solution claim 1 , an aqueous ...

Composite material

A composite material comprises a macroporous silicate-based material at least partially substituted with at least one microporous zeolite, wherein the microporous zeolite is functionalised with either copper, iron or both copper and iron, and wherein the composite material is in the form of particles. The composite material can be obtained using a method comprising the steps of: (i) providing a mixture comprising a silicate-containing scaffold having a macroporous structure, an aluminium source and an organic template; (ii) hydrothermally treating the mixture to form a microporous zeolite-containing structure substantially retaining the macroporous structure of the silicate-containing scaffold; (iii) incorporating copper, iron or both copper and iron into the zeolite. The cate-containing scaffold can be a diatomaceous earth.

DELAYED RELEASE FORMULATION OF NITRIFICATION INHIBITORS

The invention relates to a composition comprising a) zeolitic imidazolate framework ZIF-8; and b) Compounds of formula (I) or a stereoisomer, salt, tautomer or N-oxide thereof, wherein the variables have a meaning as defined in the main body of the text. It also relates to a method for fertilization comprising treatment with the composition. Other objects are the use of ZIF-8 for reducing the evaporation rate of Compounds of formula (I); a method for production of the composition as defined comprising step a) of adsorbing Compounds of formula (I) on ZIF-8; and the use of the composition for producing granules comprising Compounds of formula (I) and a fertilizer. 2. The composition according to claim 1 , wherein the variables of the compound of formula (I) have the following meaning:{'sup': 'a', 'sub': 1', '2', '1', '2, 'claim-text': {'sup': 'a', 'sub': 2', '2', '2, 'or two substituents Ron adjacent C-atoms are a OCHCHO bridge or a O(CH)O bridge;'}, 'Rhalogen, C-C-alkyl, C-C-alkoxy;'}{'sup': 'b', 'sub': 1', '6, 'RH, C-C-alkyl, phenyl and benzyl;'}{'sup': c', 'd, 'sub': 1', '4', '1', '4, 'R, Rare independently H, C-C-alkyl, or C-C-haloalkyl; and'}{'sup': 'e', 'sub': 1', '4, 'Rhalogen and C-C-alkyl.'}3. The composition according to claim 1 , wherein the variables of the compound of formula (I) have the following meaning:{'sup': 1', '2, 'sub': 2', '6', '2', '6', '1', '6', '1', '6, 'R, Rare independently H, C-C-alkynyl, C-C-alkynyloxy, aryl-C-C-alkyl, or hetaryl-C-C-alkyl;'}{'sup': 1', '2, 'wherein least one of Rand Ris H.'}4. The composition according to claim 1 , wherein the variables of the compound of formula (I) have the following meaning:{'sup': 'A', 'claim-text': {'sup': A', 'c', 'd', 'a, 'sub': 2', '1', '6', '1', '6', '1', '6', '1', '6, 'Rhalogen, NO, NRR, C-C-alkyl, C-C-haloalkyl, C-C-alkoxy, C-C-alkylthio, phenoxy, or benzyloxy, wherein the cyclic moieties are unsubstituted or substituted with one or more, same or different R.'}, 'A phenyl, which is ...

METHOD OF PREPARING ZEOLITE NANOSHEET VIA SIMPLE CALCINATION PROCESS AND ZEOLITE NANOSHEET PARTICLE PREPARED THEREBY

Disclosed are a method of preparing a zeolite nanosheet and a zeolite nanosheet particle prepared thereby, and more particularly a method of preparing a zeolite nanosheet capable of preparing a monolayer zeolite nanosheet through a simple process of mixing a multilayer zeolite precursor with a swelling agent to swell the multilayer zeolite precursor and drying and calcining the multilayer zeolite precursor, wherein the monolayer zeolite nanosheet is useful to separate a catalyst or gas, and a zeolite nanosheet particle prepared thereby. 1. A method of preparing a monolayer zeolite nanosheet comprising:(a) mixing a multilayer zeolite precursor with water and a swelling agent to swell intra-layers of the multilayer zeolite precursor; and(b) recovering a solid material from the mixture containing a swollen zeolite precursor, and then calcining the solid material to obtain a monolayer zeolite nanosheet.2. The method of preparing a monolayer zeolite nanosheet of claim 1 , wherein the swelling agent is a mixture of a salt compound having a functional group of alkyltrimethylammonium and a salt compound having a functional group of tetrapropylammonium.3. The method of preparing a monolayer zeolite nanosheet of claim 2 , wherein the salt compound having the functional group of alkyltrimethylammonium is one or more selected from a group consisting of dodecyltrimethylammonium bromide claim 2 , cetrimonium bromide and trimethyloctadecylammonium bromide.4. The method of preparing a monolayer zeolite nanosheet of claim 2 , wherein the salt compound having the functional group of tetrapropylammonium is one or more selected from the group consisting of tetrapropylammonium bromide claim 2 , tetrapropylammonium fluoride claim 2 , tetrapropylammonium chloride and tetrapropylammonium hydroxide.5. The method of preparing a monolayer zeolite nanosheet of claim 1 , wherein an Si/Al ratio of the zeolite precursor is 10 to 200.6. The method of preparing a monolayer zeolite nanosheet of ...

PROCESS FOR THE MULTI-REACTOR SYNTHESIS OF ZEOLITE CRYSTALS HAVING A CONTROLLED PARTICLE SIZE

The present invention relates to a process for preparing zeolite crystals having a multimodal particle size distribution, and the sizes of which are between 0.02 μm and 20 μm, said process comprising feeding at least two reactors each with a synthesis gel capable of forming zeolite crystals, carrying out a crystallization reaction, in parallel, in each of the at least two reactors, and mixing the reaction media of the at least two reactors, after the start of at least one of the crystallization reactions. 1. Process for preparing zeolite crystals having a multimodal particle size distribution , and the sizes of which are between 0.02 μm and 20 μm , said process comprising at least the following steps:a) preparing a synthesis gel by mixing at least one source of silica, at least one source of alumina and optionally, at least one aqueous alkali or alkaline-earth metal hydroxide solution,b) feeding at least two reactors each with a synthesis gel capable of forming zeolite crystals,c) carrying out a crystallization reaction, in parallel, in each of the at least two reactors,d) mixing the reaction media of the at least two reactors, ande) filtering the mixture of the reaction media obtained in step d), in order to separate the crystals produced from the mother liquors.2. Process according to claim 1 , wherein the at least two reactors are each fed by a synthesis gel of zeolite crystals claim 1 , it being possible for the synthesis gels to be identical or different.3. Process according to claim 1 , wherein one or more seeding agents are introduced into the synthesis gel(s) upstream of or inside at least one of the synthesis reactors or in the at least two synthesis reactors.4. Process according to claim 1 , wherein the seeding agent is chosen from nucleating gels claim 1 , zeolite crystals claim 1 , mineral particles claim 1 , and mixtures thereof.5. Process according to claim 1 , wherein the reactors used are stirred reactors for syntheses in batch mode and tubular ...

ZEOLITES WITH TETRA-COORDINATED LEWIS ALUMINUM SITES AND METHODS FOR THEIR PREPARATION

Modified crystalline zeolite materials have a zeolite framework with both tetra-coordinate Lewis aluminum single sites and Brønsted aluminum sites. The tetra-coordinate Lewis aluminum single sites include aluminum atoms covalently bonded to a variable group and to two oxygen atoms and further coordinated to a third oxygen atom. The variable group may be alkyl, hydride, or hydroxyl. Methods for incorporating tetra-coordinate Lewis aluminum single sites into a crystalline zeolite material include contacting the crystalline zeolite material with a dialkylaluminum hydride RAlH, where each R is alkyl, to react the dialkylaluminum hydride with the zeolite framework and form tetra-coordinate alkyl aluminum single sites. Heating the alkyl-aluminum zeolite induces β-hydride elimination of the alkyl groups, whereby tetra-coordinate aluminum hydride single sites are formed. By oxidizing the hydride-aluminum zeolite, at least a portion of the tetra-coordinate aluminum hydride single sites are converted to tetra-coordinate aluminum hydroxide single sites. 2. The modified crystalline zeolite material of claim 1 , wherein the tetra-coordinate Lewis aluminum single sites of the modified crystalline zeolite material comprise at least two of (a) claim 1 , (b) claim 1 , and (c):(a) tetra-coordinate Lewis aluminum single sites having an environment in the zeolite framework according to structure (A-I), where R is an alkyl;(b) tetra-coordinate Lewis aluminum single sites having an environment in the zeolite framework according to structure (A-I), where R is a hydride; and(c) tetra-coordinate Lewis aluminum single sites having an environment in the zeolite framework according to structure (A-I), where R is a hydroxyl.3. The modified crystalline zeolite material of claim 1 , wherein the modified crystalline zeolite material exhibits at least one band as measured by Fourier Transform Infrared Spectroscopy chosen from (a) claim 1 , (b) claim 1 , (c) claim 1 , or combinations thereof:{'sup': ...

METHOD FOR GENERATING NEW FAUJASITE ZEOLITES

The invention is broadly drawn to a process to introduce mesoporosity in faujasite zeolites with Si/Al<5 and unit cell sizes below 24.58 Angstrom by an inventive sequence of acid and base treatments, yielding superior physico-chemical and catalytic properties compared to the materials prepared according to the teachings known in the state of the art. Part of the invention relates to the acid step which is executed in the presence of a salt of which the anion is able to form multi-ligand complexes with aluminum, and of which a specific amount of cations are protonic (ca. 90% to 20% of the total cations with −3 Подробнее

Zeolite and Manufacturing Method Thereof

Provided are a zeolite with increased hydrothermal durability and a method of manufacturing the same. One aspect of the present invention provides a method of producing the zeolite, comprising the steps of: preparing a raw material zeolite (excluding FAU-type zeolite material) containing at least Si but not Al in the framework or having a Si/Al atomic ratio of 50 or more, and bringing the zeolite material into contact with a solution containing fluoride ions or with hot water at a temperature of 50° C. or more and 250° C. or less. 1. A zeolite containing at least Si in the framework (excluding FAU-type zeolite) , whereinthe zeolite has a relative crystallinity (900° C.) of 20% or more, which is the crystallinity ratio of the zeolite after to before heating the zeolite at 900° C. for 3 hours under an atmosphere containing 10% water vapor by volume, andthe zeolite before heating has a water absorption ratio of 6.0% by weight or less in an environment with a temperature of 25° C. and a relative water vapor pressure of 0.4.2. An MFI-type zeolite containing at least Si but not Al in the framework or having a Si/Al atomic ratio of 50 or more , whereinthe zeolite has a relative crystallinity (1050° C.) of 20% or more, which is the crystallinity ratio of the zeolite after to before heating the zeolite at 1050° C. for 3 hours under an atmosphere containing 10% water vapor by volume.3. A *BEA-type zeolite containing at least Si but not Al in the framework or having a Si/Al atomic ratio of 50 or more , whereinthe zeolite has a relative crystallinity (1100° C.) of 20% or more, which is the crystallinity ratio of the zeolite after to before heating the zeolite at 1100° C. for 3 hours under an atmosphere containing 10% water vapor by volume.4. An MOR-type zeolite containing at least Si but not Al in the framework or having a Si/Al atomic ratio of 50 or more , whereinthe zeolite has a relative crystallinity (900° C.) of 20% or more, which is the crystallinity ratio of the zeolite ...

MODIFIED ALKALI METAL NANOTITANATES FOR HYDROGEN SULFIDE ADSORPTION

A hydrogen sulphide adsorbent is formed from an alkali metal nanotitanate having a portion of the alkali metal cations exchanged with metal cations reactive with hydrogen sulphide, and heat treated. A method for producing the adsorbent includes the steps of mixing an alkali metal nanotitanate in powder form into an aqueous metal cation solution to produce a slurry, which is subsequently dehydrated to produce a powder, which is heat treated. A low temperature method for removing hydrogen sulphide from a gaseous mixture involves exposing the gaseous mixture to the aforementioned adsorbent, at a temperature less than 250° C. The adsorbent maintains a high adsorption capacity over a range of activation temperatures and humidity conditions. 1. A hydrogen sulphide adsorbent comprising an ETS zeolite comprising ion-exchanged metal cations reactive with hydrogen sulphide.2. The adsorbent of wherein the ETS zeolite comprises ETS-2 claim 1 , ETS-4 or ETS-10.3. The adsorbent of wherein the metal cations reactive with hydrogen sulphide comprises copper claim 1 , barium or zinc.4. The adsorbent of wherein the ETS zeolite comprises ETS-2 and the metal cation reactive with hydrogen sulphide comprises copper.5. The adsorbent of having an amorphous component with a copper to titanium atomic ratio of about 0.20 or greater.6. The adsorbent of having a specific surface area of about 180 m/g or greater.7. The adsorbent of heat treated in the range of about 100° C. to about 500° C.8. A method for producing a hydrogen sulphide adsorbent claim 4 , said method comprising the steps of:(a) mixing an ETS zeolite in powder form into an aqueous metal cation solution to produce a slurry and allowing for ion exchange;(b) dehydrating the slurry to produce a powder; and(c) heat treating the powder at less than about 500° C.9. The method of wherein the ETS zeolite comprises ETS-2 claim 8 , ETS-4 or ETS10. The method of wherein the metal cations reactive with hydrogen sulphide comprises copper claim 8 ...

SMALL CRYSTAL LTL FRAMEWORK TYPE ZEOLITES

Small crystal LTL framework type zeolites, characterized as polycrystalline aggregates, each of the aggregates comprising a plurality of spherical or cube-like crystallites and wherein each crystallite has an average crystallite size of from 10 to 50 nm, are disclosed. Such zeolites can be prepared by hydrothermal conversion of FAU framework type zeolites at low HO/SiOmole ratios. 2. The method of claim 1 , wherein each of the aggregates has a first claim 1 , a second claim 1 , and a third dimension claim 1 , and each of the first claim 1 , the second claim 1 , and the third dimensions is from 100 to 300 nm.3. The method of claim 1 , wherein the aggregates are essentially spherical in shape.4. The method of claim 1 , wherein at least 80% of the aggregates have an aspect ratio of from 0.7 to 1.5. The method of claim 1 , wherein the FAU framework type zeolite is zeolite Y.7. The method of claim 1 , wherein the hydrothermal conditions include a temperature of from 135° C. to 200° C.8. The method of claim 1 , wherein the LTL framework type zeolite is prepared in the absence of LTL framework type seed crystals.9. An LTL framework type zeolite claim 1 , characterized as polycrystalline aggregates claim 1 , each of the aggregates comprising a plurality of spherical or cube-like crystallites and wherein each crystallite has an average crystallite size of from 10 to 50 nm.10. The zeolite of claim 9 , wherein each crystallite has an average crystallite size of from 15 to 35 nm.11. The zeolite of claim 9 , wherein each of the aggregates has a first claim 9 , a second claim 9 , and a third dimension claim 9 , and each of the first claim 9 , the second claim 9 , and the third dimensions is from 100 to 300 nm.12. The zeolite of claim 9 , wherein each of the aggregates has a first claim 9 , a second claim 9 , and a third dimension claim 9 , and each of the first claim 9 , the second claim 9 , and the third dimensions is from 150 to 250 nm.13. The zeolite of claim 9 , wherein the ...

ZEOLITE COATING PREPARATION ASSEMBLY AND OPERATION METHOD

The present invention relates to a zeolite coating preparation assembly and operation method wherein zeolite adsorbents are coated by crystallization process on various surfaces heated by induction. The objective of the present invention is to provide a zeolite coating preparation assembly and operation method; by which time saving is achieved owing to heating by induction, material saving is achieved owing to heating by induction, material saving is achieved since large heating resistances and complicated reactors are not used; and which is thus more economical; and wherein thicker and more stable coatings with high diffusion coefficients are prepared by using a more practical reaction system in a shorter period of time in comparison to the known methods, and wherein mass production is enabled. 1. A zeolite coating preparation method for performing in the assembly , comprising the steps of:preparing a reactor, which is made of a material with low electrical conductivity;preparing a synthesis solution as diluted and filling it into the reactor;cleaning an electrically conductive substrate and placing it in the synthesis solution filled into the reactor;placing the reactor near a coil of an induction device;adjusting the distance between the coil and the reactor and/or the power of the induction device so as to provide the desired substrate temperature;circulating the synthesis solution that is in the reactor by the help of a pump via a connection line lying between a feeding tank which is immersed in a water bath, and the reactor;adjusting the water bath temperature with the help of a heat exchanger in order to keep the temperature of the synthesis solution in the feeding tank at a value to assure that the temperature of the synthesis solution in the reactor remains at a desired value that is lower than the temperature of the substrate;producing magnetic field by operating the induction device;performing the synthesis at the desired substrate and solution ...

SYNTHESIS OF ALUMINOSILICATE ZEOLITE SSZ-26 VIA INTERZEOLITE TRANSFORMATION

A method is provided for synthesizing aluminosilicate zeolite SSZ-26 by interzeolite transformation. 1. A method of synthesizing aluminosilicate zeolite SSZ-26 , the method comprising: (1) a FAU framework type zeolite;', '(2) a source of Group 1 or Group 2 metal (M);', '(3) hydroxide ions;', '(4) a structure directing agent (Q) comprising 1,4-bis(N-cyclohexylpyrrolidinium)butane dications; and', '(5) water; and, '(a) preparing a reaction mixture comprising(b) subjecting the reaction mixture to crystallization conditions sufficient to form crystals of aluminosilicate zeolite SSZ-26.4. The method of claim 1 , wherein the reaction mixture also contains seeds.5. The method of claim 4 , wherein the reaction mixture comprises from 0.01 ppm by weight to 10 claim 4 ,000 ppm by weight of seeds.6. The method of claim 4 , wherein the reaction mixture comprises from 100 ppm by weight to 5 claim 4 ,000 ppm by weight of seeds.7. The method of claim 4 , wherein the seeds comprise a zeolitic material having the structure of the SSZ-26/33 family of zeolites.8. The method of claim 1 , wherein the crystallization conditions include autogenous pressure and a temperature of from 125° C. to 200° C.9. The method of claim 1 , wherein the reaction mixture is substantially free of a non-zeolitic source of silicon oxide. This application claims priority to U.S. Provisional Application Ser. No. 62/382,298, filed on Sep. 1, 2016, the disclosure of which is fully incorporated herein by reference.This disclosure is directed to the synthesis of zeolite SSZ-26.Zeolites SSZ-26 and SSZ-33 belong to a family of zeolites with three-dimensional intersecting 10- and 12-membered ring channels. These two zeolites can be characterized as members of a family of materials in which the two end-members are formed by the stacking of layers in an ABAB sequence (“polymorph A”) or an ABCABC sequence (“polymorph B”). The framework formed by polymorph A is of orthorhombic symmetry while the framework formed by ...

SOUND-ABSORBING MATERIAL PARTICLE AND PREPARATION METHOD THEREOF

The invention discloses a sound-absorbing material particle and a preparation method thereof. The method for preparing the sound-absorbing material particle comprises: mixing a sound-absorbing raw material with a solvent to form a sound-absorbing slurry; filling the sound-absorbing slurry into a mechanical compression die, and performing compression molding on the sound-absorbing slurry to form a particle; performing a hydrothermal crystallization reaction on the particle to crystallize the sound-absorbing raw material in the particle; and drying the particle to produce the sound-absorbing material particle. 1. A method for preparing a sound-absorbing material particle , comprising:mixing a sound-absorbing raw material with a solvent to make a sound-absorbing slurry;filling the sound-absorbing slurry into a mechanical compression die, and performing compression molding on the sound-absorbing slurry to form a particle;performing a hydrothermal crystallization reaction on the particle to crystallize the sound-absorbing raw material in the particle; anddrying the particle to produce the sound-absorbing material particle.2. The method according to claim 1 , wherein the mass ratio of the sound-absorbing raw material in the sound-absorbing slurry ranges from 35% to 75%.3. The method according to claim 1 , wherein the particle has a diameter in the range of 0.05-1.0 mm.4. The method according to claim 1 , wherein the hydrothermal crystallization reaction is performed in a hydrothermal device claim 1 , wherein the hydrothermal device has a reactant claim 1 , and the reactant comprises a template agent.5. The method according to claim 1 , wherein the purity of the template agent is greater than 95% claim 1 , and the mass ratio of the template agent in the reactant ranges from 1% to 35%.6. The method according to claim 1 , wherein the drying process is performed at a temperature in the range of 40° C. to 150° C. claim 1 , and the atmosphere for the drying process includes ...

Scr catalyst

A highly practical SCR catalyst excellent in NO x purification performance is provided. The SCR catalyst includes a blend of an aluminosilicate molecular sieve that has supported thereon copper as an extra-framework metal and that has a CHA framework, and a silicoaluminophosphate molecular sieve that has a CHA framework, and is adapted to perform selective catalytic reduction of NO x . In the SCR catalyst, the silicoaluminophosphate molecular sieve and the aluminosilicate molecular sieve contain silicoaluminophosphate and aluminosilicate, respectively, in a molar ratio of silicoaluminophosphate:aluminosilicate of 0.1:1.0 to 0.4:1.0.

SYNTHESIS OF MOLECULAR SIEVE SSZ-56

A method is provided for synthesizing a molecular sieve having the framework structure of SSZ-56 using benzyltributylammonium cations as a structure directing agent. 1. A method of synthesizing a molecular sieve of SFS framework type , the method comprising: (1) a borosilicate beta zeolite;', '(2) a source of a Group 1 or Group 2 metal (M);', '(3) a structure directing agent (Q) comprising benzyltributylammonium cations;', '(4) a source of hydroxide ions; and', '(5) water; and, '(a) forming a reaction mixture comprising(b) subjecting the reaction mixture to crystallization conditions sufficient to convert the borosilicate beta to a molecular sieve of SFS framework type.4. The method of claim 1 , wherein the reaction mixture also contains seeds.5. The method of claim 4 , wherein the reaction mixture comprises from 0.01 to 15 claim 4 ,000 ppm by weight of seeds.6. The method of claim 4 , wherein the seeds comprise a molecular sieve of SFS framework type.7. The method of claim 1 , wherein the crystallization conditions include a temperature of from 125° C. to 200° C.8. A molecular sieve of SFS framework type and claim 1 , in its as-synthesized form claim 1 , comprising benzyltributylammonium cations in its pores.9. The molecular sieve of claim 8 , having a molar ratio of SiO/BOof at least 10.10. The molecular sieve of claim 9 , wherein the molar ratio of SiO/BOis in a range of from 50 to 200. This application claims priority to and the benefit of U.S. Provisional Application Ser. No. 62/723,371, filed Aug. 27, 2018.This disclosure relates to the synthesis of crystalline molecular sieves having the framework structure of SSZ-56.SSZ-56 is a molecular sieve possessing a unique two-dimensional channel system of intersecting 12-ring and 10-ring pores. The framework structure of SSZ-56 has been assigned the three-letter code SFS by the Structure Commission of the International Zeolite Association.The composition and characterizing X-ray diffraction pattern of molecular sieve ...

Stable Small-Pore Zeolites

The present invention provides crystalline aluminosilicate zeolites having a maximum pore size of eight tetrahedral atoms, wherein the zeolite has a total proton content of less than 2 mmol per gram. The zeolite may comprise 0.1 to 10 wt.-% of at least one transition metal, calculated as the respective oxide and based on the total weight of the zeolite. It may furthermore comprise at least one alkali or alkaline earth metal in a concentration of 0 to 2 wt.-%, calculated as the respective metal and based on the total weight of the zeolite. The zeolites may be used for the removal of NOx from automotive combustion exhaust gases. 120-. (canceled)21. A crystalline aluminosilicate zeolite having a maximum pore size of eight tetrahedral atoms , wherein the zeolite has a total proton content of less than 2 mmol per gram , and wherein the zeolite framework type material is chosen from AEI , CHA , LEV , ETL , ESV , and DDR.22. The crystalline aluminosilicate zeolite according to claim 21 , wherein the SAR is between 5 and 50.23. The crystalline aluminosilicate zeolite according to claim 21 , wherein the zeolite comprises at least one transition metal in a concentration of 0.1 to 10 wt.-% claim 21 , calculated as the respective oxides and based on the total weight of the zeolite.24. The crystalline aluminosilicate zeolite according to claim 23 , wherein the at least one transition metal is chosen from copper claim 23 , iron claim 23 , and mixtures thereof.25. The crystalline aluminosilicate zeolite according to claim 23 , wherein the at least one transition metal is introduced into the zeolite during the synthesis of said zeolite by an organic structure-directing agent comprising said at least one transition metal.26. The crystalline aluminosilicate zeolite according to claim 21 , wherein the zeolite comprises at least one alkali and/or alkaline earth metal in a concentration of 0 to 2 wt.-% claim 21 , calculated as the respective metals and based on the total weight of the ...

Zeolitic Materials And Methods Of Manufacture

Zeolites, improved methods for their synthesis, and catalysts, systems, and methods of using these zeolites as catalysts are described. The method of synthesis of the zeolites includes forming a mixture including a zeolitic precursor material and a structure directing agent and subjecting the mixture to high shear processing conditions. 1. A method of producing a zeolitic material , the method comprising the steps of:mixing at least one first zeolitic precursor material to form a synthesis gel;{'sup': '″1', 'processing the synthesis gel at a fluid shear rate exceeding 25,000 sto provide a high shear processed gel; and'}hydrothermally treating the high shear processed gel to provide the zeolitic material.2. The method of claim 1 , wherein the at least one first zeolitic precursor material is selected from the group consisting of a silica precursor claim 1 , an alumina precursor claim 1 , a phosphorus precursor claim 1 , a gallium (Ga) precursor claim 1 , a boron (B) precursor claim 1 , an iron (Fe) precursor claim 1 , a germanium (Ge) precursor claim 1 , a titanium (Ti) precursor claim 1 , a structure directing agent claim 1 , an alkali source claim 1 , seeds claim 1 , and combinations thereof.3. The method of claim 1 , further comprising mixing the high shear processed gel with at least one second zeolitic precursor material.4. The method of claim 3 , wherein the at least one second zeolitic precursor material is selected from the group consisting of a silica precursor claim 3 , an alumina precursor claim 3 , a phosphorus precursor claim 3 , a gallium (Ga) precursor claim 3 , a boron (B) precursor claim 3 , an iron (Fe) precursor claim 3 , a germanium (Ge) precursor claim 3 , a titanium (Ti) precursor claim 3 , a structure directing agent claim 3 , an alkali source claim 3 , seeds claim 3 , and combinations thereof.5. The method of claim 2 , wherein the at least one first zeolitic precursor material comprises a structure directing agent and silica precursor claim 2 ...

METHOD FOR ENGINEERED CELLULAR MAGMATIC MESOPOROUS COMPOUNDS AND ARTICLES THEREOF

Methods for engineered mesoporous cellular magmatics and articles thereof are disclosed. For example, the magmatics may include a mixture of substance that, when exposed to heat for a length of time, form a foamed mass. The foamed mass may be exposed to a solution configured to cause mineralization upon and within the articles. 1. An article of manufacture , comprising:{'claim-text': ['a non-crystalline portion; and', 'a crystalline portion that is bound to the non-crystalline portion, in line with the definition of glass ceramics; and'], '#text': 'a rigid foam mass being composed of at least one silicate based component and having:'}a zeolite material disposed within and enclosed by pores of at least a portion of at least one of the non-crystalline portion or the crystalline portion.2. The article of manufacture of claim 1 , wherein the zeolite material is a product of zeolite synthesis caused by a chemical reaction between the rigid foam mass and a solution.3. The article of manufacture of claim 2 , wherein the solution includes at least one of alkali aluminates claim 2 , alkali/alkaline hydroxides claim 2 , alkali carbonates claim 2 , water glass claim 2 , and/or tetramethylammonium hydroxide.4. The article of manufacture of claim 1 , wherein the rigid foam mass exhibits macroporous and mesoporous characteristics.5. An article of manufacture claim 1 , comprising:{'claim-text': ['at least one of a non-crystalline portion or a crystalline portion bound to the non-crystalline portion; and', 'a zeolite material disposed within pores of at least a portion of the at least one of the non-crystalline portion or the crystalline portion.'], '#text': 'an engineered foam mass having:'}6. The article of manufacture of claim 5 , further comprising a vitreous material disposed within the pores of at least a portion of the at least one of the non-crystalline portion or the crystalline portion.7. The article of manufacture of claim 6 , wherein the vitreous material includes at ...

METHOD FOR PREPARING ZEOLITE SSZ-35..test eDAN

A method for making zeolite SSZ-35 is disclosed using a N,N-dimethylazonanium cation as a structure directing agent.

SYNTHESIS OF ZEOLITE WITH THE CHA CRYSTAL STRUCTURE, SYNTHESIS PROCESS AND USE THEREOF FOR CATALYTIC APPLICATIONS

The present invention relates to a new synthesis process of a crystalline material with the CHA structure, which comprises the following steps: i) Preparation of a mixture that comprises one source of water, one source of a tetravalent element Y, one source of an alkaline or alkaline earth cation (A), one source of a trivalent element X, and one organic molecule (OSDA1) with the structure [RRRRN]Q, being the molar composition: n XO:YO:a A:m OSDA1:z HO, ii) crystallisation of the mixture obtained in i) in a reactor, iii) recovery of the crystalline material obtained in ii). 2. Process according to claim 1 , wherein the source of the tetravalent element Y is selected from silicon claim 1 , tin claim 1 , titanium claim 1 , germanium claim 1 , and combinations thereof.3. Process according to claim 2 , wherein the source of the tetravalent element Y is a source of silicon selected from silicon oxide claim 2 , silicon halide claim 2 , colloidal silica claim 2 , fumed silica claim 2 , tetraalkyl orthosilicate claim 2 , silicate claim 2 , silicic acid claim 2 , a previously synthesised crystalline material claim 2 , a previously synthesised amorphous material claim 2 , and combinations thereof.4. Process according to claim 3 , wherein the source of silicon is selected from a previously synthesised crystalline material claim 3 , a previously synthesised amorphous material and combinations thereof.5. Process according to claim 4 , wherein the previously synthesised materials contain other heteroatoms in their structure.6. Process according to claim 1 , wherein the source of the trivalent element X is selected from aluminium claim 1 , boron claim 1 , iron claim 1 , indium claim 1 , gallium claim 1 , and combinations thereof.7. Process according to claim 6 , wherein the source of the trivalent element X is aluminium.8. Process according to claim 1 , wherein the OSDA1 is selected from tetraethylammonium claim 1 , methyl triethylammonium claim 1 , propyl triethylammonium claim 1 ...

Modified Crystalline Aluminosilicate for Dehydration of Alcohols

The present invention relates to a catalyst composition comprising a modified crystalline aluminosilicate of the Framework Type FER having Si/Al framework molar/ratio greater than 20 characterized in that in said modified crystalline aluminosilicate the ratio between the strong acid sites and the weak acid sites, S/W, is lower than 1.0 and having the extra framework aluminum (EFAL) content lowered to less than 10 wt % preferably 5 wt % even more preferably less than 2 wt % measured by 27Al MAS NMR. The present invention further relates to a process for producing olefins from alcohols in presence of said catalyst composition. 117.-. (canceled)19. The process for the preparation of a catalyst composition according to further characterized in that said organic acidic medium or an organic medium of step ii.){'sub': 2', '3', '4, 'comprises one or more —COH, —SOH or —SOH groups or salts thereof; or'}is chosen among citric acid, formic acid, oxalic acid, tartaric acid, malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, phthalic acid, isophthalic acid, fumaric acid, nitrilotriacetic acid, hydroxyethylenediaminetriacetic acid, ethylene di amine tetracetic acid i.e. EDTA, or their corresponding salts being sodium salts or any mixture of thereof.20. The process for the preparation of a catalyst composition according to further characterized in that a calcination is performed before step ii.) said calcination being performed at a temperature lower than 600° C. and with a temperature increase of less than 10° C./min claim 18 , preferably less than 1° C./min for a period of at least 30 min and under a gas flow containing at most 1000 ppm volume of water measured at the inlet of the calcination reactor.21. The process for the preparation of a catalyst composition according to wherein said modified crystalline aluminosilicate of the Framework Type FER has Si/Al framework molar ratio ranging from 25 to 50.22. The process for the preparation of a catalyst ...

CATALYST COMPOSITION

A catalyst composition comprising (a) carrier comprising (i) 5 to 95 wt % mordenite type zeolite having a mean crystallite length parallel to the direction of the 12-ring channels of 60 nm or less and a mesopore volume of at least 0.10 cc/gram, (ii) 5 to 95 wt % ZSM-5 type zeolite; and (iii) 10 to 60 wt % inorganic binder; and (b) 0.001 to 10 wt % of one or more catalytically active metals, wherein the inorganic binder comprises titania, its preparation and its use in alkylaromatic conversion. 1. A catalyst composition comprising(a) a carrier comprising (i) mordenite type zeolite having a mean crystallite length parallel to the direction of the 12-ring channels of 60 nm or less and a mesopore volume of at least 0.10 cc/gram in an amount in the range of from 5 to 95 wt %, based on total weight of carrier, (ii) ZSM-5 type zeolite in an amount of from 5 to 95 wt %, based on total weight of carrier; and (iii) an inorganic binder in an amount in the range of from 10 to 60 wt %, based on total weight of carrier; and(b) of from 0.001 to 10 wt % of one or more catalytically active metals, wherein the inorganic binder comprises titania.2. The catalyst composition according to claim 1 , in which the carrier comprises mordenite type zeolite in an amount in the range of from 20 to 90 wt % claim 1 , based on total weight of carrier.3. The catalyst composition according to claim 1 , in which the carrier comprises ZSM-5 type zeolite in an amount of from 10 to 70 wt % claim 1 , based on total weight of carrier.4. The catalyst composition according to claim 1 , wherein the ZSM-5 type zeolite has a silica to alumina molar ratio in the range of from 15 to 40.5. The catalyst composition according to claim 1 , wherein the ZSM-5 type zeolite has a number average crystal size in the range of from 25 to 200 nm claim 1 , as determined by X-ray diffraction.6. The catalyst composition according to claim 1 , wherein the ZSM-5 type zeolite has a number average.7. A crystal size in the range of ...

CATALYST CONTAINING METAL CLUSTER IN STRUCTURALLY COLLAPSED ZEOLITE, AND USE THEREOF

This invention relates to a hydrogen spillover-based catalyst and use thereof, wherein a hydrogen activation metal cluster is dispersed in the form of being encapsulated in a crystalline or amorphous aluminosilicate matrix which is partially or fully structurally collapsed zeolite, thereby exhibiting high hydroprocessing or dehydrogenation activity and suppressed C-C hydrogenolysis activity. 18-. (canceled)9. A method of preparing a hydrogen spillover based catalyst , comprising:{'sup': '-', '(a) providing zeolite containing a hydrogen activation metal (M) cluster therein and having a silica/alumina molar ratio oc 2 or is less;'}{'sub': '4', 'sup': '+', '(b) ion-exchanging the zeolite with an ammonium ion (NH); and'}(c) thermally treating the ion-exchanged zeolite to thus partially or fully collapse a zeolite framework so that the hydrogen activation metal cluster is encapsulated in crystalline or amorphous aluminosilicate,wherein changes in hydrogen and carbon monoxide chemisorption amounts depending on a temperature satisfy the following relation:{'sub': 373', '473', '573', '373', '473', '575, '0.7*(H/M+H/M+H/M)/3>(CO/M+CO/M+CO/M)/3'}wherein H/M is a chemisorption amount (mol) of a hydrogen atom per total mol of given CO/M is a chemisorption amount (mol) of carbon monoxide per total mol of M., and subscripts represent adsorption temperatures (K).10. The method of claim 9 , wherein the zeolite is P-type zeolite claim 9 , A-type zeolite or X-type zeolite.11. The method of claim 9 , wherein the (a) comprises performing hydrothermal synthesis from a zeolite synthesis reaction mixture containing a hydrogen activation metal (M) precursor and having the following composition represented relative to oxides:{'sub': 2', '2', '3, 'SiO/AlO: 1˜20'}{'sub': 2', '2, 'HO/M′O: 10˜120'}{'sub': 2', '2, 'M′O/SiO: 0.38˜3, and'}{'sub': '2', 'OH/SiO: 0.76˜6,'}wherein M′ is an alkali metal.12. The method of claim 11 , wherein M′ is sodium.13. The method of claim 11 , further comprising ...

Phosphorous Modified Molecular Sieves, Their Use in Conversion of Organics to Olefins

The present invention is a phosphorous modified zeolite (A) made by a process comprising in that order: 154-. (canceled)56. The process of claim 55 , wherein the first reactor effluent comprises light olefins and a heavy hydrocarbon fraction and is sent to a first fractionator to separate the light olefins from the heavy hydrocarbon fraction claim 55 , and wherein the heavy hydrocarbon fraction is recycled to the first reactor at conditions effective to convert at least a portion of the heavy hydrocarbon fraction to olefin products.57. The process of claim 55 , wherein the olefin products include ethylene and propylene that are fractionated to form a stream comprising ethylene claim 55 , and wherein at least a part of the stream comprising ethylene is recycled to the first reactor to increase propylene production.58. The process of claim 55 , wherein a second reactor effluent is sent to a second fractionator and the light olefins are recovered claim 55 , and wherein heavy hydrocarbons having 4 or more carbon atoms are recycled to the second reactor and mixed with the heavy hydrocarbons recovered from the first reactor effluent.59. The process of claim 58 , wherein the heavy hydrocarbons having 4 or more carbon atoms are sent to a third fractionator to remove a heavy hydrocarbon stream comprising C6+ hydrocarbons prior to recycling to the second reactor.60. The process of claim 58 , wherein the olefin products include ethylene and propylene claim 58 , wherein ethylene is recycled to the second reactor to adjust a propylene to ethylene production ratio claim 58 , and wherein the ethylene is recycled from the first fractionator claim 58 , the second fractionator claim 58 , both the first fractionator and the second fractionator claim 58 , or a common recovery section.61. The process of claim 58 , wherein the olefin products include ethylene and propylene claim 58 , wherein ethylene is recycled to the first reactor to adjust a propylene to ethylene production claim 58 , ...

CATALYST AND METHOD FOR PREPARING CATALYST

A catalyst includes LTA zeolite including copper ions, wherein a Si/Al ratio of the LTA zeolite is 2 to 50. The catalyst is coated on a honeycomb carrier or a filter. The catalyst removes NOx from a reaction gas at 100° C. or above. The catalyst has an NOx conversion rate of 80% at 450° C. or above. 1. A method for manufacturing a catalyst , comprising steps of:preparing a LTA zeolite of which a Si/Al ratio is 2 or more;preparing LTA zeolite containing ions by using the LTA zeolite; andpreparing a copper-type of LTA zeolite by performing copper ion exchange on the ion-containing LTA zeolite.2. The method of claim 1 , wherein a Si/Al ratio of the LTA zeolite is 2 to 50.3. The method of claim 1 , wherein the step of preparing the ion-containing LTA zeolite comprises substituting ions in the LTA zeolite.4. The method of claim 1 , wherein the step of preparing the ion-containing LTA zeolite comprises adding the LTA zeolite to an ammonium salt for reaction and then drying the LTA zeolite claim 1 , and{'sub': 4', '3, 'wherein the ammonium salt is ammonium nitrate (NHNO).'}5. The method of claim 1 , wherein the step of performing copper ion exchanging on the ion-containing LTA zeolite comprises adding the ion-containing LTA zeolite to a copper precursor solution and stirring the solution.6. The method of claim 1 , further comprising thermally treating the copper type of LTA zeolite after the preparing of the copper-type LTA zeolite claim 1 ,wherein the thermal treatment is performed at a temperature ranging from 1 to 30° C./min from 400 to 750° C.7. The method of claim 1 , wherein the step of preparing the LTA zeolite having the Si/Al ratio of 2 or more comprises preparing the LTA zeolite using an LTA seed.8. A method for manufacturing a catalyst claim 1 , comprising steps of:preparing an LTA zeolite of which a Si/Al ratio is 2 or more;preparing an LTA zeolite containing ions using the LTA zeolite; andpreparing an iron type of LTA zeolite by performing iron (Fe) ion ...

Micropowder and molding containing a zeolitic material containing ti and zn

The present invention relates to a micropowder, wherein the particles of the micropowder have a Dv10 value of at least 2 micrometer and the micropowder comprises mesopores which have an average pore diameter in the range of from 2 to 50 nm and comprise, based on the weight of the micropowder, at least 95 weight-% of a microporous aluminum-free zeolitic material of structure type MWW containing titanium and zinc.

A PROCESS FOR PREPARING A MOLDING COMPRISING ZINC AND A TITANIUM-CONTAINING ZEOLITE

A process for preparing a molding comprising zinc and a titanium-containing zeolitic material having framework type MWW, comprising (i) providing a molding comprising a titanium-containing zeolitic material having framework type MWW; (ii) preparing an aqueous suspension comprising a zinc source and the molding comprising a titanium-containing zeolitic material having framework type MWW prepared in (i); (iii) heating the aqueous suspension prepared in (ii) under autogenous pressure to a temperature of the liquid phase of the aqueous suspension in the range of from 100 to 200° C., obtaining an aqueous suspension comprising a molding comprising zinc and a titanium-containing zeolitic material having framework type MWW; (iv) separating the molding comprising zinc and a titanium-containing zeolitic material having framework type MWW from the liquid phase of the suspension obtained in (iii). 1. A process for preparing a molding comprising zinc and a titanium-containing zeolitic material having framework type MWW , comprising(i) providing a molding comprising a titanium-containing zeolitic material having framework type MWW;(ii) preparing an aqueous suspension comprising a zinc source and the molding comprising a titanium-containing zeolitic material having framework type MWW prepared in (i);(iii) heating the aqueous suspension prepared in (ii) under autogenous pressure to a temperature of the liquid phase of the aqueous suspension in the range of from 100 to 200° C., obtaining an aqueous suspension comprising a molding comprising zinc and a titanium-containing zeolitic material having framework type MWW; and(iv) separating the molding comprising zinc and a titanium-containing zeolitic material having framework type MWW from the liquid phase of the suspension obtained in (iii).2. The process of claim 1 , wherein the molding provided in (i) comprises the titanium-containing zeolitic material having framework type MWW and a binder claim 1 , wherein in the molding provided in ...

METHOD FOR PREPARING THE SILICOALUMINATE FORM OF THE AEI ZEOLITE STRUCTURE WITH HIGH YIELDS, AND ITS APPLICATION IN CATALYSIS

The present invention relates to a new process for synthesising the silicoaluminate form of the AEI zeolite structure based on the use of another zeolite, zeolite Y, as the only source of silicon and aluminum, in order to obtain high synthesis yields (greater than 80%) in the absence of any other source of silicon, phosphine-derivedcationsand fluoride anions in the synthesis medium. The N,N-dimethyl-3,5-dimethylpiperidinium cation may be used as the OSDA, and the FAU crystal structure is transformed into the AEI crystal structure with high yields. It also discloses the preparation of catalysts based on the silicoaluminate form of the AEI crystal structure, wherein Cu atoms have been introduced, and the subsequent application thereof as a catalyst, preferably in the SCR of NOx. 1. Synthesis process for a crystalline material with the AEI zeolite structure , comprising , at least , the following steps: {'br': None, 'sub': 2', '2', '3', '2, 'SiO:a AlO:b OSDA:c A:d HO'}, '(i) preparation of a mixture containing, at least, water, one zeolite with the FAU crystal structure as the only source of silicon and aluminum, a cyclic ammonium cation with alkyl substituents as the OSDA, and a source of alkaline or alkaline-earth cations (A), wherein the synthesis mixture has the following molar compositionwhere a ranges between 0.001 and 0.2;where b ranges between 0.01 and 2;where c ranges between 0 and 2;where d ranges between 1 and 200;(ii) crystallisation of the mixture obtained in (i) in a reactor; and(iii) recovery of the crystalline material obtained in (ii).2. Process according to claim 1 , wherein the cyclic ammonium cation used as the OSDA is a quaternary ammonium selected from N claim 1 ,N-dimethyl-3 claim 1 ,5-dimethylpiperidinium (DMDMP) claim 1 , N claim 1 ,N-diethyl-2 claim 1 ,6-dimethylpiperidinium (DEDMP) claim 1 , N claim 1 ,N-dimethyl-2 claim 1 ,6-dimethylpiperidinium claim 1 , N-ethyl-N-methyl-2 claim 1 ,6-dimethylpiperidinium claim 1 , and combinations thereof.3 ...

Catalyzed Alkylation, Alkylation Catalysts, and Methods of Making Alkylation Catalysts

Improved alkylation catalysts, alkylation methods, and methods of making alkylation catalysts are described. The alkylation method comprises reaction over a solid acid, zeolite-based catalyst and can be conducted for relatively long periods at steady state conditions. The alkylation catalyst comprises a crystalline zeolite structure, a Si/Al molar ratio of 20 or less, less than 0.5 weight percent alkali metals, and further having a characteristic catalyst life property. Some catalysts may contain rare earth elements in the range of 10 to 35 wt %. One method of making a catalyst includes a calcination step following exchange of the rare earth element(s) conducted at a temperature of at least 575° C. to stabilize the resulting structure followed by an deammoniation treatment. An improved method of deammoniation uses low temperature oxidation. 140-. (canceled)41. An alkylation catalyst , comprising:a zeolite structure comprising sodalite cages and supercages, a Si/Al molar ratio of 20 or less, less than 0.5 weight percent alkali metals, rare earth elements in the range of 10 to 35 wt % (or a molar ratio of rare earth elements to (Si and Al) in the range of 0.06 to 0.20), and, optionally up to 5 wt % Pt and/or Pd; and/or Nickel; andcharacterizable by a Catalyst Lifetime of 2 or greater (or 2.5 or greater, or between 2.5 and 3.5) where the Catalyst Lifetime parameter is defined as the catalyst age when the olefin conversion falls below 90% (or, in some preferred embodiments below 95%) using a test where the solid-acid catalyst is loaded in a fixed-bed reactor such that the dT/dP>10 (diameter of tube to diameter of catalyst particles) and L/dP>50 (length of catalyst bed to diameter of catalyst particles) and exposed to a flow comprising a) a feed of 10:1 molar ratio of isobutane:n-butenes at 60° C. and 300 psig with a recycle ratio (R=volumetric flow rate of recycle stream/volumetric flow rate of feed stream) of 50, where VS/VC is 7 (the ratio of system volume to catalyst ...

Inorganic porous frameworklayered double hydroxide coreshell materials

Core @ layered double hydroxide shell materials of the invention have the formula: T p @{[M z+ (1−x) M′ x y+ (OH) 2 ] a+ (X n− ) a/n ·bH 2 O·c(AMO-solvent)} q wherein T is a solid, porous, inorganic oxide-containing framework material, M z+ is a metal cation of charge z or a mixture of two or more metal cations each independently having the charge z; M′ y+ is a metal cation of charge y or a mixture of two or more metal cations each independently having the charge y; z=1 or 2; y=3 or 4; 0<x<0.9; b is 0 to 10; c is 0.01 to 10; p>0; q>0; X n− is an anion; with n>0; a=z(1−x)+xy−2; and AMO-solvent is an organic solvent which is completely miscible with water. Also disclosed are the products obtained by calcining the core @ layered double hydroxide shell materials which calcination products are core @ mixed metal oxide materials having the formula T p @[{M z+ 1−x M′ y+ x O w ] p Ÿ] wherein T is a solid, porous, inorganic oxide-containing framework material, M z+ 1−x M′ y+ x O w is a mixed metal oxide, or mixture of mixed metal oxides, which may be crystalline or non-crystalline, wherein M z+ and M′ y+ are different charged metal cations; M z+ is a metal cation of charge z or a mixture of two or more metal cations each independently having the charge z; M′ y+ is a metal cation of charge y or a mixture of two or more metal cations each independently having the charge y; z is 1 or 2; y is 3 or 4; 0<x<0.9; w>0; p>0 and q>0; Ÿ is the residue of an X n− anion in which n>0.

ORGANIC-FREE SYNTHESIS OF SMALL PORE ZEOLITE CATALYSTS

The present invention is directed to methods of enhancing the catalytic activities of 8-MR zeolites, the methods comprising treating a precursor 8-MR zeolite that has been prepared without the use of an organic structure directing agent and having an Si/Al ratio of less than 5, with high temperature steam for a period of time sufficient to extract at least a portion of the aluminum from the precursor zeolite framework to form a steam-treated zeolite having an Si/tetrahedral Al ratio of greater than 5, wherein the steam has a temperature in a range of from about 350° C. to about 850° C. The compositions produced by these methods and their use in catalytic reactions are also provided.

REMOVAL OF OCCLUDED ALKALI METAL CATIONS FROM MSE-FRAMEWORK TYPE MOLECULAR SIEVES

A method for reducing the level of occluded alkali metal cations from an MSE-framework type molecular sieve comprises either (a) contacting the molecular sieve with a solution containing ammonium ions at a temperature of at least about 50° C. to ammonium-exchange at least part of the occluded potassium ions or (b) contacting the molecular sieve with steam at a temperature of at least about 300° C. and then subjecting the steamed molecular sieve to ammonium exchange. 1. A method for reducing a level of occluded alkali metal cations from an MSE-framework type molecular sieve , the method comprising:(a1) contacting an MSE framework-type molecular sieve containing a first amount of occluded potassium ions with a solution containing ammonium ions at a temperature of at least about 50° C. to ammonium-exchange at least part of the occluded potassium ions and produce a treated molecular sieve containing a second amount of occluded potassium ions, wherein the second amount is less than the first amount.2. The method of claim 1 , wherein the MSE framework-type molecular sieve comprises MCM-68.3. The method of claim 1 , wherein the MSE framework-type molecular sieve comprises an aluminosilicate.4. The method of claim 3 , wherein the MSE framework-type molecular sieve has a silicon to aluminum atomic ratio of at least about 7.5. The method of claim 1 , wherein the first amount of occluded potassium ions at least about 0.25 wt % potassium by weight of the molecular sieve.6. The method of claim 1 , wherein the treated molecular sieve contains no more than about 0.10 wt % potassium.7. The method of claim 1 , further comprising:(b1) crystallizing a reaction mixture comprising a source of water, a source of an oxide of a tetravalent element, Y, a source of a trivalent element, X, a source of potassium and a source of organic structure directing agent effective to direct the crystallization of an MSE framework-type molecular sieve from the reaction mixture;(c1) recovering crystals of ...

Methods of making porous crystalline materials and their use in hydrocarbon sorption

The present invention relates to a hydrothermally stable form of a porous crystalline material useful in applications where sorbing hydrocarbons is desired. Among such applications is sorption of hydrocarbons from an exhaust stream from an engine in a cold-start condition. A hydrocarbon sorption apparatus including the hydrothermally stable porous crystalline material is provided. In either case, the hydrothermally stable porous crystalline material can contain both 10- and 12-membered ring pore channels, or alternately an 11-membered ring pore channel, as well as have one or more other properties.

COMPOSITION OF MATTER AND STRUCTURE OF ZEOLITE UZM-55

A new crystalline aluminosilicate zeolite comprising a MTT framework has been synthesized that has been designated UZM-55. This zeolite is represented by the empirical formula: 4. The microporous crystalline zeolite of wherein x is less than 0.02.5. The microporous crystalline zeolite of wherein y is less than 0.02.6. The microporous crystalline zeolite of wherein r is from about 0.0005 to about 0.08.7. The microporous crystalline zeolite of that is thermally stable up to a temperature of at least 600° C.8. The microporous crystalline zeolite of having a SiO/AlOratio greater than 75.9. The microporous crystalline zeolite of having a SiO/AlOratio greater than 150.10. The microporous crystalline zeolite of wherein M is selected from the group consisting of lithium claim 1 , potassium claim 1 , rubidium claim 1 , cesium claim 1 , magnesium claim 1 , calcium claim 1 , strontium claim 1 , barium claim 1 , zinc claim 1 , yttrium claim 1 , lanthanum and gadolinium.11. The microporous crystalline zeolite of wherein R is 1 claim 1 ,6-bis(N-methylpiperidinium)hexane.12. The microporous crystalline zeolite of having a micropore volume of greater than 0.08 mL/g and less than 0.15 mL/g.13. A process of preparing the microporous crystalline zeolite of comprising: {'br': None, 'i': a', 'b', 'c', ':e', ':g, 'sub': 2', '2', '3', '2', '3', '2', '2, 'MO:R:AlOEO:SiOHO'}, 'preparing a reaction mixture having a composition expressed in terms of mole ratios of the oxides ofwhere M represents a metal or metals from hydrogen, zinc or Group 1 (IUPAC 1), Group 2 (IUPAC 2), Group 3 (IUPAC 3) or the lanthanide series of the periodic table, “a” has a value from 0 to about 0.5, R is an organic structure directing agent or agents, “b” has a value from about 0 to about 0.3, “c” has a value of from 0.0 to about 0.015, E is an element selected from the group consisting of gallium, iron, boron and mixtures thereof, “e” has a value from 0.0 to about 0.015,7 and “g” has a value from about 20 to about 40 ...

ZEOLITE HAVING A ONE-DIMENSIONAL CHANNEL SYSTEM, 10-MEMBERED RINGS AND 12-MEMBERED RINGS

A new crystalline aluminosilicate zeolite comprising a novel framework has been synthesized that has been designated UZM-55. This zeolite is represented by a three-dimensional framework of at least SiOtetrahedral units and an empirical composition in the as-synthesized and anhydrous basis expressed by an empirical formula of: 1. A microporous crystalline zeolite having a channel system comprising 10-membered rings of tetrahedrally coordinated atoms and 12-membered rings of tetrahedrally coordinated atoms in a single channel.2. The zeolite of wherein the channel system is uni-dimensional.6. The microporous crystalline zeolite of containing planar faults.7. The microporous crystalline zeolite of wherein the planar faults are an offset of about ⅓ of a b axis of said microporous crystalline zeolite.8. The microporous crystalline zeolite of represented by an empirical formula:{'br': None, 'sub': m', 'r', 'x', 'y', 'z, 'sup': 'n+', 'MRAlESiO'}where M represents hydrogen or a metal or metals selected from the group consisting of zinc, Group 1 (IUPAC 1) metals, Group 2 (IUPAC 2) metals, Group 3 (IUPAC 3) metals or lanthanide series metals of the periodic table, “m” is the mole ratio of M to Si and varies from 0 to about 1.0, “n” is the weighted average valence of M and has a value of about 1 to about 3, R is a structure directing agent or agents, “r” is the mole ratio of N from the organic structure directing agent or agents to Si and has a value of about 0 to about 1.0, “x” is the mole ratio of Al to Si and has a value of from 0 to about 0.026, E is an element selected from the group consisting of gallium, iron, boron and mixtures thereof, “y” is the mole ratio of E to Si and has a value from 0 to about 0.026, and “z” is the mole ratio of 0 to (Al+E) and has a value determined by the equation: z=(4+m+3●x+3●y)/2.11. A method of preparing a microporous crystalline zeolite having a channel system comprising 10-membered rings of tetrahedrally coordinated atoms and 12-membered ...

A PROCESS FOR PREPARING A POROUS OXIDIC MATERIAL WHICH COMPRISES MICROPORES AND MESOPORES AND WHICH COMPRISES A ZEOLITIC MATERIAL HAVING A FRAMEWORK TYPE AEI

A process for preparing a porous oxidic material with micropores and mesopores and a zeolitic material having an AEI framework with a tetravalent element Y, a trivalent element X and oxygen, the micropores having a pore diameter determined by nitrogen adsorption-desorption at 77 K of less than 2 nm and the mesopores having a pore diameter of from 2 to 50 nm, the process involving subjecting a synthesis mixture to hydrothermal crystallization at a crystallization temperature of from 90 to 200° C., to obtain a mother liquor containing the porous oxidic material having the zeolitic AEI framework. The synthesis mixture may have a zeolitic material with an FAU framework comprising Y, X, and O, water, a base source, a first organic structure directing agent as an AEI framework type structure directing agent, a second organic structure directing agent with a dimethyl-octadecyl[3-(trimethoxysilyl)-propyl]ammonium cation, and seed crystals 1. A process for preparing a porous oxidic material the process comprising:crystallizing, at a crystallization temperature in the range of from 90 to 200° C., a synthesis mixture, to obtain a mother liquor comprising the porous oxidic material comprising said zeolitic material having an AEI framework,wherein the synthesis mixture comprises a zeolitic material having an FAU framework comprising a tetravalent element Y, a trivalent element X, and O, and water, a base source, a first organic structure directing agent as an AEI framework structure directing agent, a second organic structure directing agent comprising a dimethyl-octadecyl[3-(trimethoxysilyl)-propyl]ammonium cation, and seed crystals,wherein Y comprises Si, Sn, Ti, Zr, and/or Ge,wherein X comprises Al, B, In, and/or Ga, andwherein the porous oxidic material comprises micropores and mesopores, and a zeolitic material having an AEI framework comprising a tetravalent element, Y, a trivalent element, X, and oxygen, the micropores having a pore diameter determined by nitrogen ...

Catalyst composition comprising modified crystalline aluminosilicate for dehydration of alcohols

Process for preparing a catalyst composition containing a modified crystalline aluminosilicate and a binder, wherein the catalyst composition comprises from 5 to 95% by weight of crystalline aluminosilicate as based on the total weight of the catalyst composition, the process being remarkable in that it comprises a step of steaming said crystalline aluminosilicate: at a temperature ranging from 100° C. to 380° C.; under a gas phase atmosphere containing from 5 wt % to 100 wt % of steam; at a pressure ranging from 2 to 200 bars; at a partial pressure of H 2 O ranging from 2 to 200 bars; and said steaming being performed during at least 30 min and up to 144 h; and in that the process also comprises a step of shaping, or of extruding, the crystalline aluminosilicate with a binder, wherein the binder is selected to comprise at least 85 wt % of silica as based on the total weight of the binder, and less than 1000 ppm by weight as based on the total weight of the binder of aluminium, gallium, boron, iron and/or chromium.

Activated eu-2 zeolite and use thereof

Disclosed herein is an activated EU-2 zeolite, including: pores having a diameter of 30 to 40 Å while maintaining the crystal structure of the EU-2 zeolite; and pores having a diameter of 40 to 200 Å, wherein the volume of the pores having a diameter of 30 to 40 Å is 0.01 to 0.06 cc/g, and the volume of the pores having a diameter of 40 to 200 Å is 0.07 to 0.4 cc/g.

WATER-SOLUBLE ELECTROLYZED/SOLVOLYZED CLINOPTILOLITE FRAGMENTS AND NUTRACEUTICAL, PHARMACEUTICAL, AND ENVIRONMENTAL PRODUCTS BASED THEREON

Methods and processes are provided to make clinoptilolite into a water-soluble solvolyzed form with electrolytes suitable for various administration routes for use in the detoxification and rejuvenation in environment arena, nutraceutical arena, and pharmaceutical arena This process includes oral, topical, tablet, pill formulas, biotech delivery and intravenous. Absorption of water-soluble solvolyzed clinoptilolite fragments can aid in detoxification by binding to heavy metals, viruses and environmental toxins and can reduce reactive oxygen species and inflammation related to metals. The process and method described can provide an increase in energy, increase in growth factors that aid in hair, skin, and nail growth, and can provide an increase in focus, concentration, and memory. Water-soluble solvolyzed, electrolyzed clinoptilolite fragments can be combined with one or more dietary supplements, including various vitamins, minerals, and sleep aids to rejuvenate the cells and the environment during and after detoxification. 1. A composition comprising water-soluble clinoptilolite fragments , wherein(a) the water-soluble clinoptilolite fragments comprise water-soluble solvolyzed clinoptilolite fragments; and(b) the water-soluble solvolyzed clinoptilolite fragments are made using a solvent that comprises a non-water solvent.2. The composition of claim 1 , wherein the solvent comprises the non-water solvent in combination with water.3. The composition of claim 1 , wherein the solvent comprises the non-water solvent in the absence of water.4. The composition of claim 1 , wherein the non-water solvent is an alcohol.5. The composition of claim 4 , wherein(a) the alcohol is ethanol, and(b) the solvent comprises the non-water solvent in combination with water.6. The composition of claim 1 , wherein the non-water solvent is selected from the group consisting of ammonia claim 1 , glycols claim 1 , and amines.7. The composition of claim 1 , wherein at least some of the water- ...

Method for making molecular sieve ssz-105

A method for making a new crystalline molecular sieve designated SSZ-105 is disclosed. SSZ-105 is synthesized using N,N-dimethylpiperidinium cations as a structure directing agent. SSZ-105 is a disordered aluminosilicate molecular sieve comprising at least one intergrown phase of an ERI framework type molecular sieve and an LEV framework type molecular sieve.

FLUID CATALYTIC CRACKING CATALYSTS FOR INCREASING BUTYLENE YIELDS

A microspherical fluid catalytic cracking catalyst includes zeolite, and alkali metal ion or alkaline earth metal ion. 1. A method of making a microspherical fluid catalytic cracking catalyst , the method comprising:mixing microspheres with a barium solution to form a barium-microsphere mixture; andcalcining the barium-microsphere mixture to form a first calcined material;wherein:prior to the mixing with the barium solution, the microspheres comprise Y-zeolite crystallized as a layer on the surface of a porous alumina-containing matrix; andthe mixing with the barium solution is conducted at acidic pH conditions.2. The method of claim 1 , wherein the mixing with the barium solution is conducted at pH=3.3. The method of claim 1 , wherein the mixing with the barium solution is conducted at a temperature above room temperature.4. The method of claim 1 , wherein calcining the barium-microsphere mixture is conducted for at least about 15 minutes.5. The method of claim 1 , wherein calcining the barium-microsphere mixture is conducted at a temperature of from about 500° C. to about 700° C.6. The method of claim 1 , further comprising mixing the microspheres with an ammonium solution prior to the mixing with the barium solution claim 1 , wherein the microspheres comprise Y-zeolite in the sodium form prior to the mixing with the ammonium solution.7. The method of claim 6 , wherein the mixing with the ammonium solution is conducted at acidic pH conditions.8. The method of claim 6 , wherein the mixing with the ammonium solution is conducted at pH=3.9. The method of claim 6 , wherein the mixing with the ammonium solution is conducted at a temperature above room temperature.10. The method of claim 1 , further comprising mixing the first calcined material with another ammonium solution to form an ammoniated material.11. The method of claim 10 , wherein the mixing with another ammonium solution is conducted at acidic pH conditions.12. The method of claim 10 , wherein the mixing ...

Zeolite production method

Provided is a method for continuous production of zeolite in which a starting material is continuously supplied to a tubular reactor to produce an aluminophosphate zeolite that contains, in the framework structure, at least aluminum atoms and phosphorus atoms or an aluminosilicate zeolite having 5≦SiO 2 /Al 2 O 3 ≦2000. The tubular reactor is heated using a heat medium; a ratio (volume)/(lateral surface area) of the volume (inner capacity) to the lateral surface area of the tubular reactor is 0.75 cm or smaller; and seed crystals are added to the starting material. Through using a small-diameter tubular reactor and heating with a heat medium, it becomes possible to heat sufficiently the entirety of a starting material (zeolite precursor gel) in a short time, and to allow reaction to proceed at a high rate. The occurrence of irregular pressure fluctuations during continuous production of the zeolite can be prevented by adding seed crystals.

NOVEL OXIDE MATERIALS AND SYNTHESIS BY FLUORIDE/CHLORIDE ANION PROMOTED EXFOLIATION

The present invention is directed to the synthesis of novel delaminated layered zeolite precursor materials prepared by fluoride/chloride anion-promoted exfoliation. The method comprises, for example, using a combination of fluoride and chloride anions at a mild pH in aqueous solution to affect delamination of a layered zeolite precursor. The method can also comprise using a combination of fluoride and chloride anions in a non-aqueous solution comprising an organic solvent. The method may be used in conjunction with either acidification or sonication, or both. The resulting delaminated zeolite precursors are then isolated. Precursors that are then isolated lack amorphous silica content. The UCB- product is an example of such a novel oxide material and is obtained in yields in excess of % without the need for sonication. 1. A method of preparing an exfoliated layered zeolite precursor material comprising preparing an aqueous mixture of chloride and fluoride anions and a layered oxide material to be delaminated , maintaining the aqueous mixture at a pH of 12 or less at a temperature in the range of 5-150° C. for a length of time sufficient to effect the desired delamination , and then recovering the exfoliated layered zeolite precursor material.2. The method of claim 1 , wherein the layered zeolite precursor oxide material to be delaminated is selected from the group consisting of SSZ-25 claim 1 , ERB-1 claim 1 , PREFER claim 1 , SSZ-70 claim 1 , Nu-6(1) claim 1 , and MCM-22 (P).3. The method of claim 1 , wherein the layered oxide material to be delaminated is MCM-22 (P).4. The method of claim 1 , wherein the layered oxide material to be delaminated is ERB-1.5. The method of claim 1 , wherein the aqueous mixture of chloride and fluoride anions comprises a mixture of an alkylammonium fluoride and chloride.6. The method of claim 1 , wherein bromide anions are also present in the aqueous mixture.7. The method of claim 6 , wherein the aqueous mixture comprises an ...

NOVEL OXIDE MATERIALS AND SYNTHESIS BY FLUORIDE/CHLORIDE ANION PROMOTED EXFOLIATION

The present invention is directed to the synthesis of novel delaminated layered zeolite precursor materials prepared by fluoride/chloride anion-promoted exfoliation. The method comprises, for example, using a combination of fluoride and chloride anions at a mild pH in a non-aqueous solution to affect delamination of a layered zeolite precursor, generally comprising an organic solvent. The method may be used in conjunction with either acidification or sonication, or both. The resulting delaminated zeolite precursors are then isolated. Precursors that are then isolated lack amorphous silica content. The UCB-1 product is an example of such a novel oxide material and is obtained in yields in excess of 90% without the need for sonication. 1. A method of preparing an exfoliated layered zeolite precursor material comprising preparing a non-aqueous mixture of chloride and fluoride anions comprising an organic solvent and a layered oxide material to be delaminated , maintaining the mixture at a temperature in the range of 50-150° C. for a length of time sufficient to effect the desired delamination; and then recovering the delaminated oxide material.2. The method of claim 1 , wherein the organic solvent comprises DMF.3. The method of claim 1 , wherein the mixture claim 1 , after heating claim 1 , is subjected to sonication claim 1 , after which the delaminated oxide material is recovered.4. The method of claim 1 , wherein the layered oxide material to be delaminated is selected from the group consisting of SSZ-25 claim 1 , ERB-1 claim 1 , PREFER claim 1 , SSZ-70 claim 1 , Nu-6(1) claim 1 , Al-SSZ-70 and B-SSZ-70.5. The method of claim 1 , wherein the layered oxide material to be delaminated is PREFER claim 1 , Al-SSZ-70 and B-SSZ-706. The method of claim 1 , wherein the mixture is subjected to sonication prior to recovering the delaminated oxide material.7. The method of claim 1 , wherein the non-aqueous mixture of chloride and fluoride anions comprises a mixture of an ...

Direct synthesis of high-aspect ratio zeolite nanosheets

An example material includes a planar layer of MFI zeolite. The planar layer has a thickness in a range between 4 nm and 10 nm for at least 70% of a basal area of the planar layer.

Stable CHA Zeolites

The present invention provides hydrothermally stable crystalline aluminosilicate zeolites with a CHA framework type, wherein the zeolite has a total proton content of less than 2 mmol per gram. The zeolite may comprise 0.1 to 10 wt.-% of at least one transition metal, calculated as the respective oxide and based on the total weight of the zeolite. It may furthermore comprise at least one alkali or alkaline earth metal in a concentration of 0 to 2 wt.-%, calculated as the respective metal and based on the total weight of the zeolite. The invention furthermore provides a one-pot synthesis method for making the alumino-silicate zeolites with a CHA framework type. An aqueous reaction mixture comprising a tetraethylammonium compound, a silica source, at least one alkali or alkaline earth metal hydroxide, a zeolite of the faujasite framework type and Cu-tetraethylenepentamine are mixed, homogenized and heated, and finally, the product is recovered. The novel hydrothermally stable zeolites comprising a CHA framework type are suitable as catalytically active materials for the selective catalytic reduction of nitrogen oxides by reaction with NH3 as reductant (NH3-SCR) wherein said hydrothermally stable zeolites are used.

ALUMINOSILICATE NANORODS

Nanostructured aluminosilicates including aluminosilicate nanorods are formed by heating a geopolymer resin containing up to about 90 mol % water in a closed container at a temperature between about 70° C. and about 200° C. for a length of time up to about one week to yield a first material including the aluminosilicate nanorods. The aluminosilicate nanorods have an average width of the between about 5 nm and about 30 or between about 5 nm and about 60 nm or between about 5 nm and about 100 nm, and a majority of the aluminosilicate nanorods have an aspect ratio between about 2 and about 100. 1. A composition comprising: an average width of the aluminosilicate nanorods is between about 5 nm and about 100 nm,', 'a majority of the aluminosilicate nanorods have an aspect ratio between about 2 and about 100,', 'wherein the aluminosilicate nanorods comprise unbound aluminosilicate nanorods,', one or more organic molecules, surfactants, or polymers;', 'one or more inorganic molecules or nanoparticles,', 'one or more molecules of a biological origin, or', 'any combination thereof., 'wherein a surface of the aluminosilicate nanorods is covered partially or completely with], 'a nanostructured aluminosilicate comprising aluminosilicate nanorods, wherein2. (canceled)3. (canceled)4. The composition of claim 1 , wherein the mesopore volume of the nanostructured aluminosilicate is at least about 0.05 cc/g on the BJH cumulative pore volume from the desorption branch of the Nsorption isotherm claim 1 , wherein the mesopore volume is the total pore volume of the pores having a pore width between about 2 nm and about 50 nm.58-. (canceled)9. The composition of claim 1 , wherein the specific micropore surface area of the nanostructured aluminosilicate is between 1 m/g and 60 m/g.1015-. (canceled)16. The composition of claim 1 , wherein the alkali ions in the aluminosilicate nanorods are exchanged partially or completely with other metal ions or protons.17. An aqueous medium claim 1 , ...

NOVEL ZEOLITE SYNTHESIS WITH ALKALINE EARTH METAL

Provided are a novel form of AFX zeolite, a novel synthesis technique for producing pure phase small pore zeolites, a novel synthesis method for producing a zeolite with an increased Al pair content, a catalyst comprising the AFX zeolite in combination with a metal, and methods of using the same. 1. An aluminosilicate zeolite comprising at least about 90% phase pure AFX framework , wherein the aluminosilicate zeolite has a short hexagonal prism morphology.2. The aluminosilicate zeolite of claim 1 , wherein the aluminosilicate zeolite is free or substantially free of alkaline metal.3. A method for making an aluminosilicate zeolite having a small pore framework comprising reacting a synthesis gel comprising at least one zeolite claim 1 , a structure directing agent claim 1 , an alkaline earth metal source claim 1 , and an optional silica source at a temperature of at least about 100° C. until crystals of the small pore zeolite form.4. The method of claim 3 , wherein the small pore zeolite crystals are at least about 90% phase pure.5. The method of claim 3 , wherein the synthesis gel is substantially free of alkaline metal.6. The method of claim 3 , wherein the synthesis gel has one or more of the following compositional molar ratios:{'sub': 2', '2', '3, 'SiO/AlOof about 10 to about 80;'}{'sub': 2', '2', '3, 'NaO/AlOof about 0 to about 2;'}{'sub': AE', '2', '3', 'AE, 'MO/AlOof about 0.3 to about 1.5 (Mcan be Ca, Sr, or Ba);'}{'sub': 2', '2', '3, 'SDAO/AlOof about 0.7 to about 20;'}{'sub': 2', '2', '3, 'HO/AlOof about 300 to about 3000; and'}{'sup': '−', 'sub': '2', 'OH/SiOof about 0.25 to about 0.5.'}7. The method of claim 3 , wherein the SDA cation is 1 claim 3 ,3-bis(1-adamantyl)imidazolium claim 3 , N claim 3 ,N-diethyl-cis 2 claim 3 ,6-dimethylpiperidinium claim 3 , N claim 3 ,N-dimethyl-3 claim 3 ,5-dimethylpiperidinium claim 3 , N claim 3 ,N claim 3 ,N-1-trimethyladamantylammonium claim 3 , or N claim 3 ,N claim 3 ,N-dimethylethylcyclohexylammonium.8. A catalyst ...

PROCESS FOR SSZ-39 SYNTHESIS USING MODIFIED REACTION COMPOSITION

A process for making SSZ-39 zeolite employing at least one organic structure-directing agent (OSDA), in which a substantial quantity of the at least one OSDA, which otherwise would be required to form a zeolite such as SSZ-39, is replaced by at least one quaternary ammonium or phosphonium compound (PFA) or a mixture of two or more thereof that is not itself an OSDA for making SSZ-39. A composition including at least one oxide of silicon; faujasite; at least one organic structure directing agent (OSDA) for making SSZ-39 zeolite; at least one PFA that is not an OSDA for making SSZ-39 zeolite; an alkali metal hydroxide; and water. 2. The process of claim 1 , wherein the at least one OSDA for making SSZ-39 zeolite is present in the aqueous reaction mixture in an amount that is less than an amount that would be required to form the SSZ-39 zeolite in absence of the PFA.3. The process of claim 2 , wherein the amount of the OSDA for making SSZ-39 is found by determining a first amount of the at least one OSDA that would be used for making the SSZ-39 zeolite when combined under the crystallization conditions with the at least one source of silicon oxide and the faujasite and an alkali metal hydroxide or salt in the water without the at least one pore filling agent (PFA); andforming the aqueous reaction mixture with a second amount of the at least one OSDA that is less than the first amount of the at least one OSDA together with the at least one pore filling agent (PFA) in an amount determined based on the difference between the first amount and the second amount of the at least one OSDA.4. The process according to wherein the at least one OSDA for making SSZ-39 zeolite is one or a mixture of two or more selected from PIPPY claim 1 , cis-PIPPY claim 1 , trans-PIPPY claim 1 , one or more 2 claim 1 ,6-dimethyl-N claim 1 ,N-dialkylpiperidinium claim 1 , wherein the alkyl groups may be the same or different and range from 1-4 carbon atoms claim 1 , and tetraethyl phosphonium ...

FUNCTIONAL STRUCTURAL BODY AND METHOD FOR MAKING FUNCTIONAL STRUCTURAL BODY

A functional structural body that can realize a prolonged life time by suppressing the decrease in function and that can fulfill resource saving without requiring a complicated replacement operation is provided. A functional structural body includes a skeletal body of a porous structure composed of a zeolite-type compound; and at least one solid acid present in the skeletal body, the skeletal body has channels connecting with each other, and the solid acid is present at least in the channels of the skeletal body. 1. A functional structural body , comprising:a skeletal body of a porous structure composed of a zeolite-type compound; andat least one solid acid present in the skeletal body,the skeletal body having channels connecting with each other,the solid acid being present at least in the channels of the skeletal body,the channel has an enlarged pore portion, andthe solid acid is at least embedded by the enlarged pore portion.2. The functional structural body according to claim 1 , wherein the enlarged pore portion causes a plurality of pores constituting any one of an one-dimensional pore claim 1 , a two-dimensional pore claim 1 , and a three-dimensional pore to connect with each other.3. The functional structural body according to claim 1 , wherein the solid acid is nanoparticles having a catalytic function claim 1 , and the skeletal body is a support that supports the solid acid.4. The functional structural body according to claim 3 , wherein an average particle size of the nanoparticles is greater than an average inner diameter of the channel and is less than or equal to an inner diameter of an enlarged pore portion.5. The functional structural body according to claim 3 , wherein the average particle size of the nanoparticles is from 0.1 nm to 50 nm.6. The functional structural body according to claim 5 , wherein the average particle size of the nanoparticles is from 0.45 nm to 14.0 nm.7. The functional structural body according to claim 3 , wherein a ratio of ...

Germanosilicate compositions of cit-13 topology and methods of preparing the same

The present disclosure is directed to novel germanosilicate compositions and methods of producing the same. In particular, this disclosure describes new silica-rich compositions of the germanosilicate designated CIT-13, with and without added metal oxides. The disclosure also describes methods of preparing and using these new germanosilicate compositions as well as the compositions themselves.

Phyllosilicate compositions designated cit-13p and methods of preparing the same

The present disclosure is directed to novel phyllosilicate compositions designated CIT-13P and methods of producing and using the same.

PROCESSES AND CATALYSTS FOR PRODUCTION OF LIGHT OLEFINS

A novel process and a novel catalyst for the production of light olefins. 1-butene is cracked in the presence of an acid- or base-modified silicalite-1 catalyst bed, wherein the modified silicalite-1 has a Si/Al ratio of greater than 1000. The modification procedures described herein increase the selectivity of the silicalite-1 catalyst toward light olefins such as ethylene and propylene. The catalytic cracking of 1-butene may be carried out in a fixed bed reactor or a fluidized bed reactor. 21. The process of claim , wherein the catalytic cracking is carried out in the presence of an inert gas.31. The process of claim , wherein the catalytic cracking is carried out at a reactor temperature within the range of 450° C. to 750° C.41. The process of claim , wherein the catalytic cracking is carried out with an on-stream time of 1 to 5 hours.51. The process of claim , wherein the catalytic cracking is carried out at a hydrocarbon partial pressure within the range of 5 psia to 50 psia.61. The process of claim , wherein the catalytic cracking is carried out at a gas hourly space velocity of 600 hto 10000 h.71. The process of claim , wherein the reactor is selected from the group consisting of a fluidized bed reactor and a fixed bed reactor.81. The process of claim , wherein the modified silicalite-1 crystals have an average particle size of 0.02 mm to 1.0 mm in diameter.91. The process of claim , wherein the silicalite-1 crystals are calcinated before and/or after acid or base treatment.101. The process of claim , wherein the process produces at least 50 wt. % total ethylene and propylene based on the total weight of the 1-butene.111. The process of claim , wherein the process produces ethylene and propylene in a ratio (ethylene: propylene) of 1:2 to 1:3.12. A process of preparing a silicalite-1 catalyst for cracking of 1-butene , comprising:contacting silicalite-1 crystals having an MFI framework and a Si/Al ratio of greater than 1000 with either an acid or a base ...

MICROPOROUS ZIRCONIUM SILICATE FOR THE TREATMENT OF HYPERKALEMIA

The present invention relates to novel microporous zirconium silicate compositions that are formulated to remove toxins, e.g. potassium ions, from the gastrointestinal tract at an elevated rate without causing undesirable side effects. The preferred formulations are designed avoid increase in pH of urine in patients and/or avoid potential entry of particles into the bloodstream of the patient. Also disclosed is a method for preparing high purity crystals of UZSi-9 exhibiting an enhanced level of potassium exchange capacity. These compositions are particularly useful in the therapeutic treatment of hyperkalemia. 146-. (canceled)47. A method for removing potassium from a patient in need thereof comprising administering a potassium-binding particle in an oral dosage form to the patient , the potassium binding particle comprising a microporous material , the particle having an average in vitro binding capacity of at least about 2.5 mmol per gram for binding potassium , and the patient being administered a dose from about 0.050 grams per day to about 33 grams per day.48. The method of claim 47 , wherein the dose is from about 0.5 grams per day to about 15 grams per day.49. The method of claim 47 , wherein the dose is from about 5 grams per day to about 20 grams per day.50. The method of claim 47 , wherein the dose is from about 5 grams per day to about 15 grams per day.51. The method of claim 47 , wherein the dose is from about 10 grams per day to about 20 grams per day.52. The method of claim 47 , wherein the dose is from about 10 grams per day to about 15 grams per day.53. The method of claim 47 , wherein the potassium-binding particle has an average in vitro binding capacity of at least about 3.5 mmol per gram.54. The method of claim 47 , wherein the microporous material having a capacity for binding potassium comprises a zirconium silicate.55. A method of treating hyperkalemia in a patient in need thereof comprising administering a potassium-binding particle in an ...

DIRECT SYNTHESIS OF CU-CHA BY MEANS OF COMBINING A CU COMPLEX AND TETRAETHYLAMMONIUM AND APPLICATIONS IN CATALYSIS

The present invention relates to a process for the direct synthesis of a material with a CHA zeolite structure in the silicoaluminate form thereof containing copper atoms, which comprises at least the following steps: 1. A process for the direct synthesis of a material with a CHA zeolite structure in the silicoaluminate form thereof containing copper atoms , which comprises at least the following steps: {'sub': 2', '2', '3', '2, 'YO:a XO:b OSDA:c A:d HO:e Cu:f polyamine'}, '(i) Preparation of a mixture which contains at least one water source, one copper source, one polyamine, one source of Y tetravalent element, one source of X trivalent element, the tetraethylammonium cation as the only OSDA and one source of alkaline or alkaline earth (A) cations, and wherein the synthesis mixture has the following molar compositionwhereina ranges between 0.001 and 0.2;b ranges between 0.01 and 2;c ranges between 0 and 2;d ranges between 1 and 200;e ranges between 0.001 and 1;f ranges between 0.001 and 1;(ii) Crystallization of the mixture obtained in (i) in a reactor;(iii) Recovery of the crystalline material obtained in (ii).2. The process for the direct synthesis of a material according to claim 1 , wherein c ranges between 0.001 and 1.3. The process for the direct synthesis of a material according to claim 1 , wherein Y is a tetravalent element selected from Si claim 1 , Sn claim 1 , Ti claim 1 , Ge and combinations thereof.4. The process for the direct synthesis of a material according to claim 3 , wherein Y is Si and originates from a source selected from silicon oxide claim 3 , silicon halide claim 3 , colloidal silica claim 3 , fumed silica claim 3 , tetraalkyl orthosilicate claim 3 , silicate claim 3 , silicic acid claim 3 , a previously synthesized crystalline material claim 3 , a previously synthesized amorphous material and combinations thereof.5. The process for the direct synthesis of a material according to claim 4 , wherein the source of Y is a previously ...

ALUMINUM SILICATE AND METHOD FOR PRODUCING SAME

Aluminum silicate having a large cesium ion adsorption capacity and a production process therefor. 2. The aluminum silicate according to whose crystal structure is amorphous according to a powder X-ray diffraction method.3. A process for producing aluminum silicate claim 1 , comprising the steps of:(1) reacting a water-soluble silicate with a water-soluble aluminum salt to ensure that the ratio (Si/Al) of silicon atoms contained in the water-soluble silicate to aluminum atoms contained in the water-soluble aluminum salt becomes 2.5 to 7.5 so as to obtain a reaction solution having a pH of 3.5 to 10.5;(2) aging the reaction solution at 60 to 120° C. for 0.5 to 3 hours;(3) carrying out the solid-liquid separation of the reaction solution to obtain cake; and(4) washing and drying the cake.4. The production process according to claim 3 , wherein the water-soluble silicate is sodium silicate.5. The production process according to claim 3 , wherein the water-soluble aluminum salt is aluminum sulfate.7. The method according to claim 6 , wherein the aluminum silicate has an amorphous structure according to a powder X-ray diffraction method. The present invention relates to aluminum silicate having a large cesium ion adsorption capacity and a production process therefor.Radioactive cesium which was released to the outside by the accident at the Fukushima No. 1 nuclear power plant caused by the Great East Japan Earthquake has become a big problem. Adsorption/immobilization using an adsorbent is expected as a method of removing radioactive cesium. As a method of adsorbing and removing a cesium ion, there is proposed a method making use of amorphous aluminum silicate (Non-Patent Document 1). Further, as a method of adsorbing and removing a cesium ion, there is proposed a method making use of zeolite or a lamellar silicate (Non-Patent Document 2). Patent Document 1 proposes mesoporous silica alumina gel.However, there is room for the improvement of the cesium ion adsorption ...