КАТАЛИТИЧЕСКАЯ СИСТЕМА НА ОСНОВЕ АЗОТИРОВАННОГО СМЕШАННОГО ОКСИДА И СПОСОБ ПОЛУЧЕНИЯ ЭТИЛЕН-НЕНАСЫЩЕННЫХ КАРБОНОВЫХ КИСЛОТ ИЛИ СЛОЖНЫХ ЭФИРОВ

Изобретение относится к способу получения α, β этилен-ненасыщенных карбоновых кислот или сложных эфиров, содержащему этапы, где вызывают контакт формальдегида или его подходящего источника с карбоновой кислотой или сложным эфиром формулы R-CH-COOR, где Rобозначает водород или алкильную группу, a Rобозначает водород, алкильную или арильную группу, в присутствии катализатора и возможно в присутствии спирта, где данный катализатор содержит азотированный оксид металла, имеющий, по меньшей мере, два типа катионов металлов Ми М, где Мвыбирают из металлов или металлоидов группы 3, 4, 13 (также называемой IIIA) или 14 (также называемой IVA) Периодической таблицы, и Мвыбирают из металлов металлоидов или фосфора группы 5 или 15 (также называемой VA) Периодической таблицы. Изобретение также относится к каталитической системе для реакции формальдегида или его подходящего источника с карбоновой кислотой или сложным эфиром формулы R-CH-COOR, где Rобозначает водород или алкильную группу, a Rобозначает ...

НАНЕСЕННЫЙ НА НОСИТЕЛЬ НЕМЕТАЛЛОЦЕНОВЫЙ КАТАЛИЗАТОР, ЕГО ПОЛУЧЕНИЕ И ПРИМЕНЕНИЕ

Настоящее изобретение относится к способу получения нанесенного на носитель неметаллоценового катализатора. Способ включает стадию приведения в контакт неметаллоценового лиганда, агента химической обработки, выбранным из соединения металла группы IVB, и алкоксимагниевого сферического носителя в присутствии растворителя для взаимодействия. Алкоксимагниевый сферический носитель имеет средний размер частиц от 100 до 2000 мкм. Неметаллоценовый лиганд настоящего способа представляет собой один или несколько, выбранных из группы, содержащей соединения, имеющие следующую структуругде значения A, B, D, E, G, R, R, R, d, qприведены в формуле изобретения. Также предложены неметаллоценовый катализатор для гомополимеризации/сополимеризации олефинов, способ гомополимеризации/сополимеризации олефинов, полиэтилен и хлорированный полиэтилен. Полиолефин, полученный в соответствии с данным изобретением, характеризуется превосходной морфологией частиц, высокой объемной плотностью и удельной площадью поверхности ...

КОМПОЗИЦИЯ КАТАЛИЗАТОРА, СОДЕРЖАЩЕГО СЕРЕБРО, СПОСОБ ПОЛУЧЕНИЯ КАТАЛИТИЧЕСКОЙ КОМПОЗИЦИИ И ИСПОЛЬЗОВАНИЕ КАТАЛИТИЧЕСКОЙ КОМПОЗИЦИИ ДЛЯ ЭПОКСИДИРОВАНИЯ ЭТИЛЕНА

Настоящее изобретение относится к каталитической композиции, пригодной для использования при эпоксидировании этилена, способу ее получения и способу эпоксидирования этилена в присутствии этой каталитической композиции. Описана каталитическая композиция, включающая носитель, имеющий поверхность, по меньшей мере 500 м2/кг, и осаждение на носителе: - металлическое серебро, - металл или компонент, содержащий рений, вольфрам, молибден или соединение, образующее нитрат или нитрит, и - металла IA группы или компонент, содержащий металл IA группы, имеющий атомный номер, по меньшей мере, 37, и дополнительно калий, причем величина выражения (QK/R)+QHIA лежит в интервале значений от 1,5 до 30 ммоль/кг, где QHIA и QK означают количество в ммоль/кг металла IA группы, имеющего атомный номер, по меньшей мере, 37, и калия, соответственно, содержащихся в каталитической композиции, отношение QHIA к QK составляет, по меньшей мере, 1:1, величина QK составляет, по меньшей мере, 0,01 ммоль/кг, R означает безразмерную ...

СПОСОБ ПОЛУЧЕНИЯ ГЕТЕРОАРОМАТИЧЕСКОГО АЛЬДЕГИДА

Настоящее изобретение относится к способу получения гетероароматического альдегида, содержащего один или два атома азота в гетероароматическом кольце, каталитической реакцией алкилзамещенного гетероароматического соединения с молекулярным кислородом в газовой фазе в присутствии катализатора, который включает использование оксида, содержащего ванадий, фосфор, алюминий и кремний, в качестве катализатора и разбавление части или всего оксида, присутствующего в виде слоя катализатора в реакторе, твердым веществом, инертным для реакции. Описываемый способ позволяет повысить селективность процесса и выход целевого продукта. 4 з.п. ф-лы, 1 табл.

КАТАЛИЗАТОРЫ

Изобретение относится к предшественникам катализаторов Фишера-Тропша, содержащим носитель и кобальт на данном носителе, к катализаторам Фишера-Тропша, способу получения предшественников катализаторов и к применению карбоновой кислоты в указанном способе. Предшественник катализатора содержит (i) носитель катализатора, содержащий оксид кремния и 11-18% масс. TiO; и (ii) кобальт на данном носителе катализатора. Другой предшественник содержит (i) носитель катализатора, включающий оксид кремния и TiO; и (ii) 35-60% масс. Co, представленного как CoOна данном носителе катализатора, где среднечисловой диаметр частиц CoOсоставляет меньше чем 12 нм, определенный с помощью XRD, и С-величина логарифмически нормального распределения размера частиц CoOсоставляет от 0,19 до 0,31; или (b) D-величина логарифмически нормального распределения размера частиц составляет от 19 до 23,5. Способ получения предшественника катализатора включает следующие стадии: осаждают раствор или суспензию, содержащую, по меньшей ...

СПОСОБ ПОЛУЧЕНИЯ ПРОИЗВОДНЫХ КАРБОНОВЫХ КИСЛОТ

Изобретение относится к усовершенствованному способу получения производных карбоновых кислот, выбранных из группы, включающей сложные эфиры и амиды, включающему взаимодействие сложного эфира карбоновой кислоты, спиртовой остаток которого содержит от 1 до 6 атомов углерода, со спиртом с 1-40 атомами углерода и/или амином с 1-40 атомами углерода в присутствии металлсодержащего катализатора, где по завершении взаимодействия реализуют контакт металлсодержащего катализатора с водой, и полученный продукт перемешивают с суперабсорбентом, причем контакт катализатора с водой сопровождается его гидролизом. Изобретение также относится к применению суперабсорбентов для выделения остаточного металла металлсодержащего катализатора из реакционной смеси после гидролиза катализатора. Способ обеспечивает надежное и максимально полное выделение катализаторов с высокой скоростью, низким потреблением энергии и незначительными потерями выхода. 2 н. и 17 з.п. ф-лы, 5 табл., 38 пр.

ВЫХЛОПНАЯ СИСТЕМА ДЛЯ ДВИГАТЕЛЯ С ВОСПЛАМЕНЕНИЕМ ОТ СЖАТИЯ, ВКЛЮЧАЮЩАЯ ОБЛАСТЬ ЗАХВАТА ИСПАРИВШЕЙСЯ ПЛАТИНЫ

Изобретение относится к выхлопной системе для обработки выхлопных газов двигателя с воспламенением от сжатия, где выхлопная система содержит катализатор окисления, включающий носитель, который представляет собой проточный монолитный носитель или фильтрующий монолитный носитель и имеет поверхность входного конца и поверхность выходного конца; каталитический материал, расположенный на носителе, причем каталитический материал содержит платину (Pt); и зону захвата, содержащую захватывающий материал, где захватывающий материал содержит Pt-легирующий металл, расположенный на тугоплавком оксиде или нанесенный на тугоплавкий оксид, где Pt-легирующий металл в катализаторе окисления является палладием (Pd), причем захватывающий материал расположен на множестве стенок каналов или нанесен на множество стенок каналов внутри носителя, и при этом тугоплавкий оксид включает по меньшей мере 65% вес. оксида циркония, при этом данная зона захвата имеет среднюю длину ≤20 мм, расположена на поверхности выходного ...

КОМПОЗИЦИЯ КАТАЛИЗАТОРА И СПОСОБ СЕЛЕКТИВНОГО ОКИСЛЕНИЯ ЭТАНА И/ИЛИ ЭТИЛЕНА ДО УКСУСНОЙ КИСЛОТЫ

Изобретение относится к композиции катализатора; способу его приготовления и способу селективного окисления этана и/или этилена до уксусной кислоты. Описана композиция катализатора для окисления этана и/или этилена до уксусной кислоты на носителе, состоящая в сочетании с кислородом из элементов - молибден, ванадий, ниобий и титан в соответствии с эмпирической формулой: ! MoaTicVdNbeOx ! где а, с, d, e обозначают такие грамм-атомные соотношения элементов, при которых ! 0<а≤1; ! 0,05<с≤2; ! 0 Подробнее

ПРИМЕНЕНИЕ МНОГОСЛОЙНОГО КАТАЛИЗАТОРА ДЛЯ ПОЛУЧЕНИЯ ФТАЛЕВОГО АНГИДРИДА

Изобретение относится к применению многослойного катализатора, т.е. катализатора с тремя или более слоями для получения фталевого ангидрида путем парофазного окисления ортоксилола и/или нафталина. Описано применение катализатора для получения фталевого ангидрида путем парофазного окисления ортоксилола и/или нафталина, содержащего по меньшей мере один слой, расположенный со стороны поступления газа, второй слой, расположенный ближе к выходу газа, и третий слой, расположенный еще ближе к выходу или у выхода газа, причем слои катализатора, предпочтительно, все включают активную массу с содержанием TiO2, причем активность первого слоя катализатора выше активности его второго слоя. Также описан способ получения фталевого ангидрида, по которому газообразный поток, содержащий ортоксилол и/или нафталин, а также молекулярный кислород, при повышенной температуре пропускают через вышеописанный трехслойный или многослойный катализатор. Технический эффект - обеспечение повышенной активности при одновременной ...

СПОСОБ ПОЛУЧЕНИЯ НОСИТЕЛЯ ДЛЯ КАТАЛИЗАТОРОВ

Улучшенный носитель для катализаторов образуется по способу, который включает применение частиц керамических компонентов, причем размер частиц выбирается так, чтобы гарантировать получение заданной степени пористости без помощи органических выжигаемых материалов. Катализаторы, осажденные на носителях по данному изобретению, сохраняют свои рабочие характеристики значительно лучше в условиях испытания при ускоренном старении, чем ранее известные в технике продукты. 2 с. и 7 з.п. ф-лы, 7 табл.

Гетерогенный катализатор жидкофазного окисления органических соединений

Изобретение относится к химической промышленности, а именно к области производства гетерогенных катализаторов процессов жидкофазного окисления органических соединений (в том числе, производных фенолов) и может быть применено на предприятиях различных отраслей промышленности для проведения реакций окисления, а также для каталитической очистки сточных вод от токсичных органических контаминантов. Гетерогенный катализатор жидкофазного окисления органических соединений содержит носитель, глутаровый диальдегид в качестве сшивающего агента и экстракт корня хрена (Armoracia Rusticana) в качестве активного компонента. Согласно изобретению в качестве носителя используют диоксид титана, модифицированный последовательно 0,095÷0,105 н. раствором соляной кислоты, 0,195÷0,205%-ным раствором хитозана в 0,0045÷0,0055 М растворе соляной кислоты и 4,95÷5,05%-ным раствором аминопропилтриэтоксисилана в 95,5÷96,5%-ном этаноле при следующем соотношении компонентов, % масс.: диоксид титана - 45÷55; хитозан - 7,5 ...

КАТАЛИЗАТОР ДЛЯ РИФОРМИНГА БЕНЗИНОВЫХ ФРАКЦИЙ И СПОСОБ ЕГО ПРИГОТОВЛЕНИЯ

Изобретение относится к способам приготовления катализаторов для риформинга бензиновых фракций, применяемого в нефтеперерабатывающей промышленности для производства высокооктановых компонентов моторных топлив. Описан катализатор для риформинга бензиновых фракций, содержащий платину, рений, хлор и носитель, причем в качестве носителя катализатор содержит поверхностное соединение дегидратированного оксодифторида цирконила алюминия общей формулы AlO[ZrOF]с весовыми стехиометрическими коэффициентами х от 1,0·10до 10,0·10при следующем содержании компонентов, мас. %: платина 0,1-0,5, рений 0,1-0,4, хлор 0,7-1,3, носитель - остальное. Способ приготовления катализатора для риформинга бензиновых фракций включает получение носителя смешением гидроксида алюминия псевдобемитной структуры с водным раствором гексафторциркониевой кислоты HZrF, содержащим органические компоненты (муравьиная, уксусная, щавелевая, лимонная кислота или их смесь с общим кислотным модулем не менее 0,01 г-моль/г-моль) с последующей ...

ВЫСОКОАКТИВНЫЙ КАТАЛИЗАТОР ИЗОМЕРИЗАЦИИ И СПОСОБ ИЗОМЕРИЗАЦИИ

Изобретение относится к катализатору и способу для селективного повышения качества парафинового сырья с целью получения обогащенного изопарафинами продукта в качестве компонента бензина. Описан катализатор, включающий носитель из сульфатированного оксида или гидроксида из металла группы IVB (IUPAC 4), первый компонент из, по меньшей мере, одного лантанидного элемента или иттриевого компонента, которым преимущественно является иттербий, и, по меньшей мере, один металл платиновой группы, которым преимущественно является платина, и огнеупорное оксидное связующее, на котором диспергирован, по меньшей мере, один металл платиновой группы. Описан способ приготовления указанного выше катализатора, включающий сульфатирование оксида или гидроксида из металла группы IVB, нанесение первого компонента, смешение сульфатированного носителя с огнеупорным неорганическим оксидным носителем, прокаливание, нанесение второго компонента и последующее прокаливание. Описан способ конверсии углеводородов путем ...

КАТАЛИТИЧЕСКАЯ КОМПОЗИЦИЯ FCC И СПОСОБ ЕЕ ПОЛУЧЕНИЯ

Группа изобретений относится к области катализаторов, а именно к каталитической композиции FCC, предназначенной для преобразования малоценных продуктов из углеводородного сырья в ценные продукты в области нефтепереработки и нефтехимии. Описаны: каталитическая композиция FCC, состоящая из гомогенизированных частиц, включающая цеолит типа Y количеством от 25 до 45 мас.%; оксид кремния количеством от 20 до 40 масс.%; оксид алюминия количеством от 5 до 25 мас.%; по меньшей мере одна глина количеством от 5 до 35 мас.%; и по меньшей мере один редкоземельный оксид количеством от 0,5 до мас.%; при этом массовый процент каждого компонента указан по отношению к общей массе каталитической композиции FCC; при этом соотношение оксида кремния к оксиду алюминия (SAR) в цеолите типа Y находится в диапазоне от 8:1 до 15:1; и при этом средний размер частиц каталитической композиции FCC находится в диапазоне 45-120 мкм, способ получения каталитической композиции FCC и способ каталитического крекинга. Осуществление ...

Катализатор риформинга бензиновых фракций и способ его получения

Изобретение относится к производству катализатора риформинга бензиновых фракций и может быть использовано в нефтеперерабатывающей промышленности. Катализатор риформинга бензиновых фракций содержит следующие компоненты, масс. %: платина 0,2-0,4, рений 0,2-0,4, бинарное соединение индия и циркония, имеющее мольное отношение In:Zr=1,0:0,6-3,0, 0,07-0,35, хлор 0,8-1,3, алюмооксидный носитель - остальное. Для получения катализатора готовят алюмооксидный носитель из формовочной пасты, полученной последовательным смешиванием при перемешивании псевдобемита, бинарного соединения индия и циркония, имеющего мольное отношение In:Zr=1,0.(0,6-3,0), водного раствора азотной кислоты и воды, перемешиванием с растиранием в течение 8-10 мин, добавлением водного раствора метилцеллюлозы и перемешиванием в течение 30-35 мин, формованием пасты в гранулы, сушкой и прокаливанием в токе воздуха. Полученный алюмооксидный носитель предварительно промывают слабым раствором уксусной кислоты в течение 20-30 мин, затем ...

СПОСОБЫ ПОЛУЧЕНИЯ КАТАЛИЗАТОРА С ИСПОЛЬЗОВАНИЕМ ГИДРАТИРОВАННЫХ РЕАГЕНТОВ

Изобретения относятся к способам получения композиций предварительного катализатора. Описан способ для получения композиций предварительного катализатора полимеризации олефинов, включающий: а) приведение в контакт растворителя, карбоновой кислоты и пероксидсодержащего соединения с образованием кислой смеси, б) приведение в контакт титансодержащего соединения и кислой смеси с образованием солюбилизированной титановой смеси, в) приведение в контакт носителя из хрома-диоксида кремния, сушку продукта присоединения путем нагревания. Описан способ для получения композиций предварительного катализатора полимеризации олефинов, включающий: а) приведение в контакт растворителя, карбоновой кислоты, азотсодержащего соединения и пероксидсодержащего соединения с образованием кислой смеси, б) приведение в контакт титансодержащего соединения и кислой смеси с образованием солюбилизированной титановой смеси, в) приведение в контакт носителя из хрома-диоксида кремния, сушку продукта присоединения путем нагревания ...

Композитный порошковый фотокатализатор и способ его получения

Изобретение относится к материалам для катализа и технологии получения катализаторов для экологического применения, а именно для каталитической фотодеструкции органических и неорганических соединений в растворах, например для фотодеструкции сточных вод. Описан композитный порошковый фотокатализатор для каталитической фотодеструкции органических и неорганических соединений в сточных водах, содержащий частицы носителя с окислами металлов, при этом он содержит металлы-носители Zn, Ti и окислы ZnO, TiO2, Nb2O5 со следующим содержанием элементов (в ат.%): Zn - 40÷42; Ti - 3÷5; Nb - 1÷2; О - 50÷55. Для получения композитного порошкового фотокатализатора применяют обработку исходных порошков композита в прианодной области генератора плазмы с использованием плазмотрона с вихревой стабилизацией и расширяющимся каналом. При этом в качестве исходных порошков используют тщательно перемешанную смесь микропорошков металлов Zn, Ti, Nb, взятых в соотношении Zn - 82÷84 ат.%; Ti - 15÷16 ат.%; Nb - 1,5÷2,5 ...

УСОВЕРШЕНСТВОВАННЫЙ СПОСОБ НЕПРЕРЫВНОГО ПОЛУЧЕНИЯ АЛКИЛ(МЕТ)АКРИЛАТОВ С МНОГОКРАТНОЙ РЕЦИРКУЛЯЦИЕЙ КАТАЛИЗАТОРА

... 1. Способ непрерывного получения высших сложных эфиров (мет)акриловой кислоты (С) путем переэтерификации сложных метиловых эфиров (мет)акриловой кислоты (А) высшими спиртами (В) в присутствии катализатора или смеси катализаторов, отличающийся тем, что кубовый остаток вакуумного испарителя (6) делят на части и часть кубового остатка подают в реакционный аппарат (1). 2. Способ по п.1, отличающийся тем, что в качестве спиртов используют н-бутанол, изобутанол или 2-этилгексанол. 3. Способ по п.1, отличающийся тем, что в качестве катализатора используют гомогенные катализаторы. 4. Способ по п.3, отличающийся тем, что в качестве катализатора используют титанат спирта (В). 5. Способ по п.1, отличающийся тем, что в реакционный аппарат (1) подают 1-95 мас.% кубового остатка вакуумного испарителя (6). 6. Способ по п.5, отличающийся тем, что в реакционный аппарат (1) подают 40-90 мас.% кубового остатка вакуумного испарителя (6). 7. Способ по п.6, отличающийся тем, что в реакционный аппарат (1) подают ...

ПОКРЫТИЕ ДЛЯ ВОССТАНОВЛЕНИЯ ОКСИДОВ АЗОТА

... 1. Каталитическое покрытие для применения в качестве гидролитического катализатора (Г-катализатора) для восстановления оксидов азота, отличающееся тем, что в качестве соединения, адсорбирующего HNCO и оксиды азота, Г-катализатор содержит лантан и дополнительно содержит одно или несколько соединений, являющееся или являющихся щелочным и/или щелочно-земельным металлом, и/или иттрием, и/или гафнием, и/или празеодимом, и/или галлием, и/или цирконием.2. Каталитическое покрытие по п. 1, отличающееся тем, что Г-катализатор содержит каталитическое покрытие на основе диоксида титана, предпочтительно в форме анатаза, на основе SiO, на основе цеолита, предпочтительно ZSM-5 и/или в бета форме, и/или на основе двуокиси циркония.3. Каталитическое покрытие по п. 1 или 2, отличающееся тем, что Г-катализатор содержит восстановитель, являющийся мочевиной и/или восстановитель, включающий NHгруппу (i=1-4).4. Каталитическое покрытие по п. 1, отличающееся тем, что Г-катализатор содержит соединение, адсорбирующее ...

КОМПОЗИЦИЯ С ПОВЫШЕННОЙ КИСЛОТНОСТЬЮ НА ОСНОВЕ ОКСИДА ЦИРКОНИЯ, ОКСИДА ТИТАНА И ОКСИДА ВОЛЬФРАМА, СПОСОБ ПОЛУЧЕНИЯ И ПРИМЕНЕНИЕ ДЛЯ ОБРАБОТКИ ВЫХЛОПНЫХ ГАЗОВ

... 1. Композиция на основе оксида циркония, оксида титана и оксида вольфрама в следующих массовых пропорциях этих различных компонентов: !оксид титана: 20-50% ! оксид вольфрама: 1-20% ! достаточное количество до 100% оксида циркония, ! отличающаяся тем, что она имеет кислотность, определяемую в результате испытания с использованием метилбутанола, равную, по меньшей мере, 90%. ! 2. Композиция на основе оксида циркония, оксида титана, оксида вольфрама и, по меньшей мере, одного оксида другого элемента М, выбранного из кремния, алюминия, железа, молибдена, марганца, цинка, олова и редкоземельных металлов в следующих массовых пропорциях этих различных элементов: ! оксид титана: 20-50% ! оксид вольфрама: 1-20% ! оксид элемента М: 1-20% ! достаточное количество до 100% оксида циркония, ! отличающаяся тем, что она также имеет кислотность, определяемую в результате испытания с использованием метилбутанола, равную, по меньшей мере, 90%. ! 3. Композиция по любому из предыдущих пунктов, отличающаяся ...

КАТАЛИЗАТОР ФИШЕРА-ТРОПША, ВКЛЮЧАЮЩИЙ ОКСИД КОБАЛЬТА И ЦИНКА

... 1. Катализатор, подходящий для катализирования реакции Фишера-Тропша, включающий металлический кобальт, нанесенный на оксид цинка и имеющий следующее распределение размера частиц по объему: ! <10% имеет размер частиц ниже 1 мкм, ! 70-99% имеет размер частиц между 1 и 5 мкм, и ! <20% имеет размер частиц выше 5 мкм. ! 2. Катализатор по п.1, имеющий следующее распределение размера частиц по объему: ! <10% имеет размер частиц ниже 1 мкм, ! 75-95% имеет размер частиц между 1 и 5 мкм, и ! <15% имеет размер частиц выше 5 мкм. ! 3. Катализатор по п.1 или 2, в котором средняя объемная величина частиц составляет менее чем 25 мкм, предпочтительно от 1,5 до 15 мкм. ! 4. Катализатор по п.1 или 2, в котором объем пор главным образом образован порами, имеющими диаметр в диапазоне 5-100 нм. ! 5. Катализатор по п.1 или 2, в котором объем пор составляет менее чем 0,5 мл/г, предпочтительно менее чем 0,45 мл/г. ! 6. Катализатор по п.1 или 2, в котором удельная поверхность составляет менее чем 120 м2/г, предпочтительно ...

СПОСОБ ПОЛУЧЕНИЯ АЛКЕНОВ ИЗ ОКСИГЕНАТОВ С ИСПОЛЬЗОВАНИЕМ НАНЕСЕННЫХ НА НОСИТЕЛЬ ГЕТЕРОПОЛИКИСЛОТНЫХ КАТАЛИЗАТОРОВ

... 1. Способ получения алкена (алкенов) из оксигенатного исходного материала в реакторе в присутствии нанесенного на носитель гетерополикислотного катализатора, отличающийся тем, что удельный объем его пор удовлетворяет следующей формуле: ! ОП>0,6-0,3 [количество ГПК/площадь поверхности высушенного катализатора], ! где ОП обозначает удельный объем пор высушенного, нанесенного на носитель гетерополикислотного катализатора (мл/г катализатора); ! количество ГПК представляет собой количество гетерополикислоты, содержащейся в высушенном, нанесенном на носитель гетерополикислотном катализаторе (мкмоль/г); ! площадь поверхности высушенного катализатора является удельной площадью поверхности высушенного, нанесенного на носитель гетерополикислотного катализатора (м2/г). ! 2. Способ по п.1, в котором количество гетерополикислоты на площадь поверхности нанесенного на носитель гетерополикислотного катализатора превышает 0,1 мкмоль/м2. ! 3. Способ по п.1, в котором нанесенный на носитель гетерополикислотный ...

СПОСОБ И РЕАКТОР ДЛЯ ПРИГОТОВЛЕНИЯ МЕТАНОЛА

... 1. Способ получения метанола, отличающийся тем, что указанный способ включает ! создание разности потенциалов между катодом (11) и анодом (12) в реакторе типа топливного элемента, ! проведение в реакторе первой операции (1), включающей первую требуемую катодную реакцию (a) между диоксидом углерода и водой ! ! с использованием катализатора, действие которого оптимизировано для проведения указанной реакции (a); ! транспортировку продуктов реакции, получаемых в первой операции (1), для проведения второй операции (2), и проведение второй требуемой катодной реакции (b) ! ! с использованием катализатора, действие которого оптимизировано для проведения указанной реакции (b), и ! транспортировку продуктов реакции, получаемых во второй операции (2), для проведения третьей операции (3), и проведение третьей требуемой катодной реакции (c) ! ! с использованием катализатора, действие которого оптимизировано для проведения указанной реакции (c). ! 2. Способ по п.1, отличающийся применением катализатора ...

КАТАЛИЗАТОР ДЛЯ ГИДРОТЕРМАЛЬНОГО СЖИЖЕНИЯ БИОМАССЫ РАСТИТЕЛЬНОГО ПРОИСХОЖДЕНИЯ

Изобретение относится к катализаторам для гидротермального сжижения биомассы растительного происхождения и может быть использовано при получении альтернативных жидких моторных топлив. Катализатор для гидротермального сжижения биомассы растительного происхождения содержит оксид циркония, оксид ванадия, фосфат алюминия, мелкодисперсный оксид алюминия при следующем соотношении компонентов, мас.%: оксид циркония 1,0-50,0; оксид ванадия 0,1-10,0; фосфат алюминия 1,0-5,0; мелкодисперсный оксид алюминия - остальное, до 100 в сульфатированной форме. Технический результат - обеспечение повышения активности катализатора по отношению к сероорганическим соединениям исходного сырья за счет перевода указанных соединений в водорастворимую форму. 3 пр.

Катализатор, способ его получения, применение и способ извлечения серы

Настоящее изобретение относится к катализатору, способу его получения и применения, а также к способу извлечения серы с использованием этого катализатора. Катализатор содержит диоксид титана в качестве носителя, оксид лютеция и/или оксид церия и оксид кальция, при этом, исходя из 100 масс. % катализатора, содержание диоксида титана составляет 80-96 масс. %, содержание оксида кальция составляет 2-10 масс. % и содержание оксида лютеция и/или оксида церия составляет 2-10 масс. %. Катализатор по настоящему изобретению содержит оксид лютеция и/или оксид церия в качестве активных ингредиентов, диоксид титана в качестве носителя и оксид кальция в качестве регулятора щелочности, при определенном соотношении для совместного действия; когда катализатор используют в процессе извлечения серы, он имеет улучшенную стабильность активности, улучшенную активность в гидролизе сероорганических соединений и активность в реакции Клауса, при этом активность в гидролизе сероорганических соединений составляет ...

СПОСОБ ПОЛУЧЕНИЯ САМОДЕЗИНФИЦИРУЮЩЕЙСЯ ПОВЕРХНОСТИ И ПОКРЫТИЕ, НАНОСИМОЕ ЭТИМ СПОСОБОМ

... 1. Способ получения самодезинфицирующейся поверхности, включающий: нанесение на поверхность первого покрытия, содержащего органосилан; нанесение поверх указанного первого покрытия второго покрытия, содержащего TiO.2. Способ по п.1, в котором нанесение первого покрытия осуществляют путем распыления органосилана на поверхности.3. Способ по п.2, в котором распыление органосилана представляет собой распыление водной смеси, содержащей 3,6 вес.% органосилана.4. Способ по п.1, в котором нанесение второго покрытия осуществляют путем электростатического распыления TiOповерх первого покрытия.5. Способ по п.4, в котором электростатическое распыление TiOпредставляет собой электростатическое распыление 3%-ной водной коллоидной суспензии TiO.6. Способ по п.1, в котором органосилан имеет структуру:,где Xвыбран из группы, состоящей из хлорида, бромида и иодида, R3 означает алкил, R5 выбран из группы, состоящей из алкила и оксиалкила, R6 выбран из группы, состоящей из алкила, алкенила, фенила и бензила, ...

КАТАЛИЗАТОР И СПОСОБ СИНТЕЗА АРОМАТИЧЕСКИХ УГЛЕВОДОРОДОВ ПУТЕМ ПРЯМОЙ КОНВЕРСИИ СИНТЕЗ-ГАЗА

Настоящее изобретение относится к технологии синтеза ароматических углеводородов из синтез-газа, в частности, относится к катализатору и способу синтеза ароматических углеводородов путем прямой конверсии синтез-газа. В способе синтез-газ используется как сырье, и способ осуществляется в реакторе с неподвижным слоем или с движущимся слоем. Давление синтез-газа составляет 0,1-6 МПа, температура реакции составляет 300-600°C, и объемная скорость составляет 500-8000 ч. В качестве катализатора используют катализатор, который является составным катализатором, состоящим из компонентов A и B и образованным компаундированием каталитического компонента A и каталитического компонента B в режиме механического смешения. Активной составляющей каталитического компонента A являются активные оксиды металла, а каталитический компонент B представляет собой одно или оба из цеолита ZSM-5 и модифицированного металлом, выбранного из Zn, Ga, Sn, Mn, Ag, Zr цеолита ZSM-5. Активный оксид металла представляет собой ...

Способ получения модифицированного фотокатализатора на основе диоксида титана

Изобретение относится к области получения модифицированных фотокатализаторов для очистки воздуха. Предложен способ получения модифицированного фотокатализатора на основе диоксида титана для фотокаталитической очистки воздуха, заключающийся в том, что нанокристаллический порошок диоксида титана в анатазной модификации с удельной поверхностью свыше 300 м/г подвергают обработке водным раствором фторсодержащего агента при мольном соотношении фторсодержащего агента и диоксида титана 0,09-0,11:1 с последующей обработкой полученной суспензии минеральной кислотой для достижения pH=4-4,5. Технический результат заключается в получении высокоактивного фотокатализатора, позволяющего сократить время, необходимое при очистке воздуха от летучих органических соединений (ЛОС) и от промежуточных продуктов неполного окисления в ходе фотокатализа, в 2 и более раз за счет увеличения скорости фотокаталитического окисления. 3 з.п. ф-лы, 1 табл., 10 пр.

КАТАЛИЗАТОР СЕЛЕКТИВНОГО КАТАЛИТИЧЕСКОГО ВОССТАНОВЛЕНИЯ

Настоящее изобретение относится к катализатору для селективного восстановления оксидов азота, имеющему два каталитически активных слоя А и Б, при этом слой А содержит оксидный носитель, а также компоненты А1 и А2, а слой Б содержит оксидный носитель, а также компоненты Б1, Б2 и Б3, где А1 и Б1 обозначают по меньшей мере один оксид ванадия, А2 и Б2 обозначают по меньшей мере один оксид вольфрама и Б3 обозначает по меньшей мере один оксид кремния, отличающийся тем, что доля компонента А1 в слое А в мас. % в пересчете на общую массу этого слоя А больше, чем доля компонента Б1 в слое Б в мас. % в пересчете на общую массу этого слоя Б, а доля слоя А в мас. % в пересчете на общую массу слоев А и Б больше, чем доля слоя Б. Также заявлены способ снижения оксидов азота в отработавших газах (ОГ), работающих на обедненных смесях двигателей внутреннего сгорания с использованием указанного выше катализатора, система снижения токсичности отработавших газов (ОГ), имеющая указанный выше катализатор и способ ...

Катализатор, способ его получения, применение и способ извлечения серы

Настоящее изобретение относится к катализатору, способу его получения и применения, а также к способу извлечения серы с использованием этого катализатора. Катализатор содержит диоксид титана в качестве носителя, оксид лютеция и/или оксид церия и оксид кальция, при этом, исходя из 100 масс. % катализатора, содержание диоксида титана составляет 80-96 масс. %, содержание оксида кальция составляет 2-10 масс. % и содержание оксида лютеция и/или оксида церия составляет 2-10 масс. %. Катализатор по настоящему изобретению содержит оксид лютеция и/или оксид церия в качестве активных ингредиентов, диоксид титана в качестве носителя и оксид кальция в качестве регулятора щелочности, при определенном соотношении для совместного действия; когда катализатор используют в процессе извлечения серы, он имеет улучшенную стабильность активности, улучшенную активность в гидролизе сероорганических соединений и активность в реакции Клауса, при этом активность в гидролизе сероорганических соединений составляет ...

ПРИМЕНЕНИЕ МНОГОСЛОЙНОГО КАТАЛИЗАТОРА ДЛЯ ПОЛУЧЕНИЯ ФТАЛЕВОГО АНГИДРИДА

... 1. Применение катализатора для получения фталевого ангидрида путем парофазного окисления ортоксилола и/или нафталина, содержащего по меньшей мере один слой, расположенный со стороны поступления газа, второй слой, расположенный ближе к выходу газа, и третий слой, расположенный еще ближе к выходу или у выхода газа, причем слои катализатора, предпочтительно, все включают активную массу с содержанием TiO2, причем активность первого слоя катализатора выше активности его второго слоя. 2. Применение по п.1, отличающееся тем, что активность катализатора от второго слоя катализатора к его третьему слою возрастает. 3. Применение по п.1 или 2, отличающееся тем, что активность катализатора от третьего слоя к четвертому, а в случае необходимости и далее к его пятому слою возрастает. 4. Применение по п.1 или 2, отличающееся тем, что всего имеется четыре или пять слоев катализатора, в частности четыре. 5. Применение по п.1 или 2, отличающееся тем, что протяженность первого слоя катализатора составляет ...

КОМПОЗИЦИЯ С ПОВЫШЕННОЙ КИСЛОТНОСТЬЮ НА ОСНОВЕ ОКСИДОВ ЦИРКОНИЯ, КРЕМНИЯ И, ПО МЕНЬШЕЙ МЕРЕ, ОДНОГО ДРУГОГО ЭЛЕМЕНТА, ВЫБРАННОГО ИЗ ТИТАНА, АЛЮМИНИЯ, ВОЛЬФРАМА, МОЛИБДЕНА, ЦЕРИЯ, ЖЕЛЕЗА, ОЛОВА, ЦИНКА И МАРГАНЦА

... 1. Композиция на основе оксида циркония, оксида кремния и, по меньшей мере, одного оксида другого элемента М, выбранного из титана, алюминия, вольфрама, молибдена, церия, железа, олова, цинка и марганца в следующих массовых пропорциях различных элементов: ! оксид кремния: 5-30%, ! оксид элемента М:1-20%, ! достаточное количество до 100% оксида циркония, ! отличающаяся тем, что она обладает, кроме того, кислотностью, определенную в результате испытания с использованием метилбутанола, равную, по меньшей мере, 90%. ! 2. Композиция по п.1, отличающаяся тем, что элемент М представляет собой вольфрам, и после кальцинации при 900°С в течение 4 ч она обладает удельной поверхностью, равной, по меньшей мере, 65 м2/г. ! 3. Композиция по п.1, отличающаяся тем, что элемент М отличен от вольфрама, и после кальцинации при 900°С в течение 4 ч она имеет удельную поверхность, равную, по меньшей мере, 95 м2/г. ! 4. Композиция по любому из предыдущих пунктов, отличающаяся тем, что она обладает кислотностью ...

КАТАЛИЗАТОР СЕЛЕКТИВНОГО КАТАЛИТИЧЕСКОГО ВОССТАНОВЛЕНИЯ

КАТАЛИЗАТОР, ГАЗОГЕНЕРАТОР И ТОЛКАТЕЛЬ С УЛУЧШЕННОЙ ТЕРМИЧЕСКОЙ СПОСОБНОСТЬЮ И КОРРОЗИОННОЙ СТОЙКОСТЬЮ

... 1. Катализатор, содержащий:носитель, содержащий оксид гафния и вплоть до равной части оксид циркония по массе, причем объединенные оксид гафния и оксид циркония, когда присутствуют, составляют, по меньшей мере, 50% масс. носителя, иактивный металл на поверхности данного носителя.2. Катализатор по п. 1, в котором данный активный металл содержит один металл из, по меньшей мере, родия, рутения, палладия, осмия, иридия или платины.3. Катализатор по п. 1, в котором данный носитель представляет собой оксид гафния на, по меньшей мере, 99% масс.4. Катализатор по п. 1, в котором данный носитель дополнительно содержит стабилизатор.5. Катализатор по п. 4, в котором данный стабилизатор содержит материал, выбранный из группы, содержащей оксид церия и оксид иттрия или любую их комбинацию.6. Катализатор по п. 1, в котором данный носитель имеет теоретическую плотность больше, чем 50%.7. Катализатор по п. 1, в котором данный активный металл составляет от 0,1% масс. до 50% масс. в расчете на полную массу ...

СЛОИСТАЯ КОМПОЗИЦИЯ И СПОСОБЫ ПРИГОТОВЛЕНИЯ И ПРИМЕНЕНИЯ КОМПОЗИЦИИ

... 1. Слоистая композиция, содержащая внутреннее ядро и, внешний слой поверх внутреннего ядра, причем внешний слой содержит тугоплавкий неорганический оксид, волокнистый компонент и неорганическое связующее вещество. ! 2. Композиция по п.1, где слоистая композиция имеет ударное дробление менее чем 10 мас.%. ! 3. Композиция по п.1, кроме того, содержащая каталитический компонент, диспергированный на внешнем слое и выбранный из группы, состоящей из элемента из групп 3-12 Периодической таблицы элементов (IUPAC) и их смесей. ! 4. Композиция по п.4, кроме того, содержащая модифицирующий компонент, диспергированный на внешнем слое и выбранный из группы, состоящей из щелочных металлов, щелочноземельных металлов, олова, германия, рения, галлия, висмута, свинца, индия, церия, цинка, бора и их смесей. ! 5. Композиция по п.1 или 3, где на внешний слой нанесено от одного до 5 дополнительных слоев, и где соседние слои содержат различные неорганические оксиды. ! 6. Композиция по п.5, где, по меньшей мере ...

КАТАЛИЗАТОР ДЛЯ ПИРОЛИЗА СЫРЬЯ

ЗОНИРОВАННЫЙ КАТАЛИЗАТОР ДЛЯ ОБРАБОТКИ ОТРАБОТАВШЕГО ГАЗА

ПОРОШКООБРАЗНЫЙ ОКСИД ТИТАНА, СПОСОБЫ ЕГО ПОЛУЧЕНИЯ И ЕГО ПРИМЕНЕНИЕ

КАТАЛИТИЧЕСКАЯ СИСТЕМА НА ОСНОВЕ АЗОТИРОВАННОГО СМЕШАННОГО ОКСИДА И СПОСОБ ПОЛУЧЕНИЯ ЭТИЛЕН-НЕНАСЫЩЕННЫХ КАРБОНОВЫХ КИСЛОТ ИЛИ СЛОЖНЫХ ЭФИРОВ

... 1. Способ получения этилен-ненасыщенных карбоновых кислот или сложных эфиров, предпочтительно α, β этилен-ненасыщенных карбоновых кислот или сложных эфиров, содержащий этапы, где вызывают контакт формальдегида или его подходящего источника с карбоновой кислотой или сложным эфиром в присутствии катализатора и возможно в присутствии спирта, где данный катализатор содержит азотированный оксид металла, имеющий, по меньшей мере, два типа катионов металлов Ми М, где Мвыбирают из металлов группы 2, 3, 4, 13 (также называемой IIIA) или 14 (также называемой IVA) периодической таблицы, и Мвыбирают из металлов группы 5 или 15 (также называемой VA) периодической таблицы.2. Способ по п.1, где азотированный оксид металла состоит из от двух до четырех катионов металла и анионов кислорода и азота.3. Способ по любому из пп.1 или 2, где металл типа Мвыбирают из одного или нескольких металлов в списке, состоящем из: - Be, Mg, Ca, Sr, Ba, Ra, B, Al, Ga, In, Tl, Sc, Y, La, Ac, Si, Ge, Sn, Pb, Ti, Zr, Hf и Rf ...

КАТАЛИЗАТОР И СПОСОБ ВОССТАНОВЛЕНИЯ ОКСИДА АЗОТА В ОТХОДЯЩЕМ ГАЗЕ

СПОСОБ ИЗГОТОВЛЕНИЯ НОСИТЕЛЯ КАТАЛИЗАТОРА ИЗ ОТРАБОТАННОГО КАТАЛИЗАТОРА

... 1. Способ изготовления материала-носителя катализатора, который включает получение отработанного материала-носителя катализатора путем выщелачивания, по меньшей мере, 50 мас.% каталитических компонентов из отработанного катализатора на носителе и дробление указанного материала-носителя катализатора таким образом, чтобы часть или весь раздробленный материал был пригодным для повторного использования, предпочтительно в качестве материала-носителя катализатора. 2. Способ по п.1, в котором отработанный материал-носитель катализатора является кристаллическим, предпочтительно высокой степени кристалличности материалом-носителем катализатора. 3. Способ по п.1, дополнительно включающий стадию смешивания части или всего раздробленного материала с новым материалом-носителем катализатора, предпочтительно в котором раздробленный отработанный материал-носитель катализатора имеет первый средний размер частиц, новый материал-носитель катализатора имеет второй средний размер частиц, а комбинированный материал-носитель ...

КАТАЛИЗАТОР ДЛЯ СЕЛЕКТИВНОГО КАТАЛИТИЧЕСКОГО ВОССТАНОВЛЕНИЯ (SCR), СОДЕРЖАЩИЙ КОМПОЗИТНЫЙ ОКСИД, СОДЕРЖАЩИЙ V И SB, СПОСОБ ЕГО ПОЛУЧЕНИЯ И ЕГО ПРИМЕНЕНИЕ ДЛЯ УДАЛЕНИЯ ОКСИДОВ АЗОТА

СЕРЕБРЯНЫЙ КАТАЛИЗАТОР ДЛЯ ПОЛУЧЕНИЯ ФОРМАЛЬДЕГИДА

... 1. Способ получения кристаллов серебра с тонким пористым покрытием оксидных материалов элементов, выбранных из группы, которая состоит из алюминия, кремния, циркония, титана и их смесей, отличающийся тем, что ! a) кристаллы серебра контактируют с золь-гелевым раствором элементов, о которых идет речь, и ! b) получающиеся в результате кристаллы серебра собирают, ! c) освобождают от органического растворителя и ! d) затем подвергают термической обработке при температуре между 50°С и точкой плавления серебра. ! 2. Способ по п.1, отличающийся тем, что этап а) выполняют в растворителе, который содержит органический растворитель. ! 3. Способ по п.1 и/или 2, отличающийся тем, что выбранный золь-гелевый раствор представляет собой алкоксид элемента, о котором идет речь в соответствующем спирте в качестве органического растворителя. ! 4. Способ по п.3, отличающийся тем, что выбранное алкоксидное соединение элемента, о котором идет речь является одним выбранным из группы метоксидов, этоксидов, пропоксидов ...

ПОДЛОЖКА КАТАЛИЗАТОРА ИЗ ОКСИДА АЛЮМИНИЯ, УСТОЙЧИВАЯ К СЕРЕ

... 1. Способ получения устойчивого к сере оксида алюминия, включающий:получение гидрата алюминия из одной или более водорастворимых солей алюминия, причем каждая из указанных солей содержит катион алюминия или анион алюминия и противоположно заряженный противоион, в водной среде,приведение в контакт гидрата алюминия с предшественником оксида кремния в водной среде и в присутствии противоионов указанных одной или более солей алюминия,выделение частиц гидрата алюминия, вступившего в контакт с предшественником оксида кремния, из водной среды, иобжиг частиц гидрата алюминия, вступившего в контакт с предшественником оксида кремния, с получением частиц устойчивого к сере оксида алюминия.2. Способ по п.1, отличающийся тем, что указанный гидрат алюминия получают путем взаимодействия сульфата алюминия и алюмината натрия в водной среде.3. Способ по п.1, отличающийся тем, что указанный предшественник оксида кремния выбран из силикатов щелочных металлов и смесей указанных соединений.4. Способ по п.1, ...

ПРОМОТИРОВАННЫЙ КАТАЛИЗАТОР СИНТЕЗА ФИШЕРА-ТРОПША, СПОСОБ ЕГО ПОЛУЧЕНИЯ И СПОСОБ СИНТЕЗА УГЛЕВОДОРОДОВ ФИШЕРА-ТРОПША

... 1. Нанесенный на носитель катализатор синтеза Фишера-Тропша, который включает каталитический материал, промотор и материал носителя; причем каталитический материал содержит кобальт в количестве, по меньшей мере, 4% от массы катализатора и, по меньшей мере, часть кобальта обладает каталитической активностью в синтезе Фишера-Тропша; промотор содержит никель, причем количество присутствующего никеля меньше, чем количество кобальта; и материал носителя содержит оксид металла, выбранного или из алюминия, или титана, или циркония. 2. Катализатор по п.1, в котором материал носителя состоит из оксида металла, выбранного или из алюминия, или титана, или циркония. 3. Катализатор по п.1 или 2, в котором материал носителя, по существу, состоит из оксида металла, выбранного или из алюминия, или титана, или циркония. 4. Катализатор по п.1, в котором материал носителя представляет собой альфа- или гамма-оксид алюминия, предпочтительно альфа-оксид алюминия. 5. Катализатор по п.1, в котором материал носителя ...

CATALYST FOR NON-SELECTIVE OXIDATION OF ORGANIC COMPOUNDS

Verfahren zur Reduktion von carbonylischen Verbindungen zu Alkoholen mit einem zircondioxyd enthaltenden Katalysator

Katalysatorträger

Katalysator zur Entfernung von NOx der anorganische Fasern enthält

Eine Magnetron-Zerstäubungsvorrichtung, in der zwischen zwei Magnetflußverteilungsmodi (ausgeglichener Modus/nicht-ausgeglichener Modus) umgestellt werden kann, ein Filmbildungsverfahren zur Bildung eines Films aus einem anorganischen Filmbildungsmaterial unter Verwendung der Vorrichtung und eine Dualmodus-Magnetron-Zerstäubungsvorrichtung und ein Filmbildungsverfahren zur Bildung eines Films aus einem anorganischen Filmbildungsmaterial bei einer niedrigen Temperatur unter Verwendung der Vorrichtung

Magnetron-Zerstäubungsvorrichtung, in der eine Zerstäubungskathode angeordnet ist, um eine ausgeglichene Verteilung von Magnetflüssen zu erzeugen, und in der der ausgeglichene Modus in den nichtausgeglichenen Modus umgewandelt werden kann, indem ein Artikel, der Ferromagnetismus bei Raumtemperatur aufweist, auf oder nahe der Oberfläche der Zerstäubungskathode zum Halten eines Materialtargets plaziert wird, und der nichtausgeglichene Modus wieder in den ausgeglichenen Modus umgewandelt werden kann, indem der ferromagnetische Artikel entfernt wird.

Substrat mit photokatalytischen Bestandteilen und aktivierten Kohlenstoffbestandteilen und Verfahren zur Herstellung

Katalysatoren zur selektiven katalytischen Reduktion in der Denitrierungstechnologie.

Verfahren zur Herstellung von geträgertem Ruthenium auf siliciumdioxid-modifiziertem Titandioxid, und Verfahren zur Herstellung von Chlor

Eine Aufgabe der Erfindung ist es, ein Verfahren zur Herstellung eines geträgerten Rutheniumoxids bereitzustellen, wobei Siliciumdioxid effektiv auf einen Titandioxid-Träger geträgert werden kann, und ein geträgertes Rutheniumoxid mit überlegener thermischer Stabilität und Lebensdauer des Katalysators erhalten wird. Eine andere Aufgabe der vorliegenden Erfindung ist es, ein Verfahren zur stabilen Herstellung von Chlor für einen längeren Zeitraum unter Verwendung des geträgerten Rutheniumoxids, das mit dem vorstehend beschriebenen Verfahren erhalten wurde, bereitzustellen. Die Erfindung betrifft ein Verfahren zur Herstellung eines geträgerten Rutheniumoxids, in dem Rutheniumoxid und Siliciumdioxid auf einen Titandioxid-Träger geträgert werden, wobei ein Titandioxid-Träger mit einer Alkoxysilanverbindung in Kontakt gebracht wird, gefolgt von Trocknen unter einem Strom Wasserdampf enthaltenden Gases, dann einem ersten Kalzinieren unter einer Atmosphäre eines oxidierenden Gases unterzogen wird ...

Verfahren zur Herstellung eines geträgerten Metallkatalysators

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung eines geträgerten Metallkatalysators oder eines geträgerten Legierungskatalysators. Um ein Verfahren bereitzustellen, mittels welchem sich Katalysatoren herstellen lassen, die einen verhältnismäßig hohen Anteil an katalytisch aktivem Metall bzw. katalytisch aktiver Legierung aufweisen, wird ein Verfahren vorgeschlagen, das die folgenden Schritte umfasst: a) Inkontaktbringen eines Trägers mit einer nanopartikulären Metallsuspension oder mit einer nanopartikulären Legierungssuspension; b) Entfernen des Suspensionsmittels; d) gegebenenfalls Stabilisieren des geträgerten Metall- bzw. Legierungskatalysators.

BENZINMOTOR MIT ABGASANLAGE ZUR VERBRENNUNG VON PARTIKELN

Verfahren zur kontinuierlichen Herstellung von als Weichmacher dienenden Estern

Katalysator zur Polyesterherstellung, Verwendung des Katalysatoren zur Herstellung von Polyester sowie Polyester, erhalten unter Einsatz des Katalysatoren

Die vorliegende Erfindung betrifft eine katalytisch aktive Zusammensetzung, die zur Herstellung von Polyestern verwendet werden kann. Erfindungsgemäß können so gute Polyesterprodukte erhalten werden, ohne dass eine Antimonkomponente zum Einsatz kommen muss.

Treating of catalyst carrier, fischer - trpsch catalysts and method of preparation thereof

Production of substituted aromatic compounds

The alkylation of an aromatic hydrocarbon with a polymerizable organic compound is effected in the presence of a catalyst obtained by treating a halogenatable inorganic oxide with a halogenated organic compound. The oxide may be of a metal of Group IVa, Va or VIa, preferably titanium, alone or mixed with a minor proportion of alumina and is preferably calcined at 200-1100 DEG F. before being treated with a methane derivative, e.g. methylene dichloride, chloroform, carbon tetrachloride and the corresponding fluorine compounds. The amount of halogen added to the oxide may be 1-15%. The polymerizable compound may be olefinic, polyolefinic or acetylenic, particularly ethylene, propylene, butene-1 and 4-methyl-pentene-1 and the aromatic hydrocarbon may be benzene, toluene or a xylene. Reaction is effected at 20-200 DEG C. and any pressure. The product also contains some polymer from the polymerizable compound.

Catalyst and process for nitric oxide reduction in a waste gas

Treating of catalyst carrier, fischer - tropsch catalysts and method of preparation thereof

A method for the preparation of a modified catalyst support comprising: (a) treating a bare catalyst support material with an aqueous solution or dispersion of one or more titanium metal sources and one or more carboxylic acids; and (b) drying the treated support, and (c) optionally calcining the treated support. Also provided are catalyst support materials obtainable by the methods, and catalysts prepared from such supports. The method of preparation improves the stability of the modified catalyst support. The catalyst prepared with the treated support are also more active compare with catalyst having a support, which is not prepared according to the method of the application.

Method for preparing ceramic catalysts

A ceramic catalyst of formula AA'MM'X prepared using sol-gel and ceramic methodologies comprises preparing a sol or slurry in an organic acid, alcohol or water of an alkaline earth metal component (A) preferably barium or strontium; a powdered or liquid transition metal component (M') selected from germanium, lead, silicon, tin, aluminium, gallium, antimony, bismuth or niobium; a powdered metal component (M) wherein M is selected from titanium or zirconium; and X is oxygen/s. The formula may optionally comprise A' selected from samarium or indium; The components are refluxed or mixed together, and the powder is dried and heated with a temperature program to calcination temperatures. The catalyst is for converting methane to higher hydrocarbons by oxidative condensation (or coupling) of methane (OCM). The OCM catalyst may be mixed with a second catalyst of formula NBC/S, for CO2-reforming of methane or dehydrogenation of ethane to ethylene, wherein N is a metal selected from Group IA or ...

Coated articles with high rate of NOx-SCR conversion and low SOx conversion rate

Articles comprising a catalyst film comprising VOx, MoO3 or WO3, and TiO2 deposited on a substrate are disclosed. The articles are useful for selective catalytic reduction (SCR) of NOx in exhaust gases. Methods for producing such articles deposit a catalyst film on the substrate to form a coated substrate, which is then calcined. When used in an SCR process, the coated articles have enhanced activity for NOx conversion, reduced activity for SOx conversion, or both. Light-weight, coated articles having high catalyst loads can be fabricated at the same or reduced dimensions when compared with laminated articles, and increased kNOx/kSOx ratios are available even from coated articles having relatively thin catalyst films. The articles should have particular value for power plant operations, where coal and high-sulfur fuels are commonly used and controlling sulfur trioxide generation is critical.

Oxidation catalyst for a diesel engine exhaust

Zeolite promoted v/ti/w catalysts

Provided is a catalyst composition for treating exhaust gas comprising a blend of a first component and second component, wherein the first component is an aluminosilicate or ferrosilicate molecular sieve component wherein the molecular sieve is either in H+ form or is ion exchanged with one or more transition metals, and the second component is a vanadium oxide supported on a metal oxide support selected from alumina, titania, zirconia, ceria, silica, and combinations thereof. Also provided are methods, systems, and catalytic articles incorporating or utilizing such catalyst blends.

Improvements in or relating to the polymerization of ethylenically unsaturated compounds

Catalysts suitable for olefin polymerization reactions (see Group IV (a)) are prepared by depositing an oxide of titanium, zirconium, thorium or hafnium on alumina, in the absence of any compound of a metal of Groups Va, VIa, VIIa or VIII and then treating the deposited oxide with the vapour of lithium, potassium, sodium, rubidium, caesium, magnesium, calcium, strontium or barium. The oxide is preferably deposited on the alumina by impregnating the alumina with a solution of the corresponding alkoxide in an organic solvent and then converting the alkoxide to the oxide, e.g. by hydrolysis. Instead of the alkoxide any salt which may be converted to the oxide by hydrolysis or pyrolysis may be used, e.g. the chloride, nitrate, sulphate, acetate or propionate. The product may be placed in a furnace wherein it is in contact with the vapour of one of the above-mentioned Groups I and II metals under vacuum for 1 to 20 hours. The Group I or II metal is used in amounts of at least 1%, preferably ...

Fischer-tropsch process in a microchannel reactor

CATALYTIC PROCESS FOR THE CONVERSION OF A SYNTHESIS GAS TO HYDROCARBONS

Catalytic process for the conversion of a synthesis gas to hydrocarbons

Spinel catalysts for water and hydrocarbon oxidation

Fischer-tropsch process in a microchannel reactor

Catalytic process for the conversion of a synthesis gas to hydrocarbons

Catalytic process for the conversion of a synthesis gas to hydrocarbons

THREE ONE AND/OR VIERSCHICHTIGE OF CATALYST SYSTEMS FOR THE PRODUCTION OF PHTHALSÄUREANHYDRID

PROCESS FOR THE DEHYDROGENATION OF GLYCEROL TOO ACROLEIN

CATALYSTS ON BASIS PRECIOUS METAL AND TITANIUM OF HALTIGER, ORGANIC-INORGANIC HYBRID MATERIALS FOR THE SELECTIVE OXIDATION OF HYDROCARBONS

NANO-STRUCTURED PARTICLE WITH HIGH THERMAL STABILITY

PHOTOACTIVE TIO2 IN COATING MATERIALS

MULTILAYER CATALYST FOR THE PRODUCTION OF PHTHALSÄUREANHYDRID

PROCEDURE FOR THE PRODUCTION OF CATALYST BODIES

CATALYTIC COMPOSITIONS AND PROCEDURES FOR DEODORIZING THEREBY

MORE HIGHLY ACTIVE ISOMERISATIONSKATALYSATOR AND PROCEDURES FOR ITS PRODUCTION AND ITS APPLICATION

PROCEDURE FOR DECOMPOSING HYDRAULIC PEROXIDES

Procedure for the production of mixture oxides

Photocatalyst laminate

A photocatalyst laminate which is composed of an undercoat layer provided on a substrate and a photocatalyst layer laminated on the surface of the undercoat layer. The undercoat layer contains (A) 100 parts by mass of a resin component and (B) 0.1-50 parts by mass of fine core-shell particles, each of which has a core that is formed of a fine tetragonal titanium oxide solid solution particle wherein tin and manganese are solid-solved and a shell that is formed from silicon oxide on the outside of the core. This photocatalyst laminate is not susceptible to decrease in the photocatalyst function even under outdoor exposure for a long period of time, and is thus capable of providing a coated article that exhibits excellent weather resistance.

Stable sub-micron titania sols

The present invention is directed to compositions and processes for the production of stable, alkaline, high solids, low viscosity, low surface tension, low flammability, sub-micron titania sols that have minimal offensive odor and methods of their use. Compositions of the present invention include, for example, mixtures of strong and weak organic bases used as dispersants to stabilize the titania sols. The dispersant mixtures have been found to result in relatively high titania solids content, low surface tension, low viscosity suspensions that are low in flammability. Sols produced according to the present invention can be used, for example, in catalytic applications such as catalyst supports for diesel emission control, or in pollutant photocatalyst applications in which it is desirable to have the titania in sol form.

Silver catalyst for formaldehyde preparation

Stable sub-micron titania sols

The present invention is directed to compositions and processes for the production of stable, alkaline, high solids, low viscosity, low surface tension, low flammability, sub-micron titania sols that have minimal offensive odor and methods of their use. Compositions of the present invention include, for example, mixtures of strong and weak organic bases used as dispersants to stabilize the titania sols. The dispersant mixtures have been found to result in relatively high titania solids content, low surface tension, low viscosity suspensions that are low in flammability. Sols produced according to the present invention can be used, for example, in catalytic applications such as catalyst supports for diesel emission control, or in pollutant photocatalyst applications in which it is desirable to have the titania in sol form.

CATALYST FOR PRODUCTION OF HYDROGEN

Catalyst compositions comprising molecular sieves, their preparation and use in conversion processes

METHOD OF PREPARING A TITANIUM- AND ZIRCONIUM-BASED OXIDE, THE OXIDES THUS OBTAINED AND THE USE OF SAME AS CATALYSTS

CATALYTIC COMPOSITION AND PROCESS FOR THE SELECTIVE OLIGOMERIZATION OF ETHYLENE TO LIGHT LINEAR ALPHA-OLEFINS

Oxidative dehydrogenation of alkanes to olefins using an oxide surface

Photocatalytic compositions comprising titanium dioxide and anti-photogreying additives

The present disclosure relates to a photocatalytic composition comprising photocatalytic titanium dioxide particles being dispersed in a continuous phase, and at least one anti- photogreying additive, wherein said at least one anti-photogreying additive is adapted to limit photogreying of said titanium dioxide particles while the photocatalytic activity of said titanium dioxide particles is maintained, and wherein the photo greying index (∆L) of said composition is less than 6.

Fischer-tropsch processes using xerogel and aerogel catalysts by destabilizing aqueous colloids

Polygon-shaped catalyst or catalyst support

Acidic solid oxides

Photo electrodes

Methods of fabricating nano particulate Titanium dioxide photocatalysts onto a conducting substrate are disclosed. The methods include hydrothermal fabrications with heat treatment steps to increase the crystallinity and photoactivity of the titanium dioxide layers.

Nanoparticular metal oxide/anatase catalysts

The present invention concerns a method of preparation of nanoparticular metal oxide catalysts having a narrow particle size distribution. In particular, the invention concerns preparation of nanoparticular metal oxide catalyst precursors comprising combustible crystallization seeds upon which the catalyst metai oxide is co-precipitated with the carrier metal oxide, which crystallization seeds are removed by combustion in a final calcining step. The present invention also concerns processes wherein the nanoparticular metal oxide catalysts of the invention are used, such as SCR (deNOx) reactions of nitrogen oxides with ammonia or urea as reductant, oxidations of alcohols or aldehydes with dioxygen or air to provide aldehydes, ketones or carboxylic acids, and photocatalytic oxidation of volatile organic compounds (VOCs).

Antistaining sheet

Disclosed is an antistaining sheet including a base material sheet and an antistaining layer formed on the base material sheet. The antistaining layer includes a photocatalyst and a thermoplastic resin to be decomposed by the photocatalyst, and thus has a self-collapsing property. The antistaining layer is stronger in self-collapsing property in the surface portion thereof than in the interior portion.

Catalyst for Removing Nitrogen Oxides

The present invention is to provide a catalyst for removing nitrogen oxides which is capable of keeping sufficient denitrification performance, i.e., a high removal rate of nitrogen oxides in exhaust gas having a high NO 2 content especially under conditions where the ratio of NO 2 /NO in exhaust gas is 1 or higher, a catalyst molded product therefor, and an exhaust gas treating method. The catalyst is designed for removing nitrogen oxides, which is used to denitrify exhaust gas containing nitrogen oxides having a high NO 2 content, which comprises: at least one kind of oxide selected from the group consisting of copper oxides, chromium oxides, and iron oxides as a component for reducing NO 2 to NO; and which further comprises: at least one kind of titanium oxide; at least one kind of tungsten oxide; and at least one kind of vanadium oxide as components for reducing NO to N 2 .

Method of producing photocatalyst layer

A method of producing a photocatalyst layer can increase a photocatalyst effect without increasing light irradiation energy for activation. The method includes: an irradiation process of irradiating an ultraviolet ray on a titanium oxide layer formed on a substrate, an aqueous photocatalyst solution application process of applying an aqueous photocatalyst solution containing fine particles on the titanium oxide layer to form a photocatalyst layer, and a drying process of drying the photocatalyst layer, wherein the aqueous photocatalyst solution application process is a process of applying the aqueous photocatalyst solution on the titanium oxide layer in such a way that a thickness of the aqueous photocatalyst solution is ununiform.

Metal oxide sterilizing catalyst, and sterilizing device and system including the same

Disclosed is a sterilizing catalyst, a sterilizing device and a sterilizing system, the sterilizing catalyst includes a metal lattice including a metal oxide, and an oxygen vacancy-inducing metal that is integrated or encompassed within the metal lattice. The metal oxide is an oxide of a divalent or multivalent metal. The oxygen vacancy-inducing metal has an oxidation number lower than that of the divalent or multivalent metal.

Method for preparation of dicarboxylic acids from saturated hydrocarbons or cycloaliphatic hydrocarbons by catalytic oxidation

The present invention relates to a method for preparing dicarboxylic acids from saturated and cycloaliphatic hydrocarbons by oxidation at a reaction temperature comprised in the range of 25 to 300° C. in an autoclave using a solid heterogeneous catalyst. More particularly, the method of the invention relates to a method for preparing adipic acid (AA) from cyclohexane (CH) by selective oxidation.

Process for producing fuel cell catalyst, fuel cell catalyst obtained by production process, and uses thereof

It is an object of the present invention to provide a production process which can produce a fuel cell catalyst having excellent durability and high oxygen reducing activity. The process for producing a fuel cell catalyst including a metal-containing oxycarbonitride of the present invention includes a grinding step for grinding the oxycarbonitride using a ball mill, wherein the metal-containing oxycarbonitride is represented by a specific compositional formula; balls in the ball mill have a diameter of 0.1 to 1.0 mm; the grinding time using the ball mill is 1 to 45 minutes; the rotating centrifugal acceleration in grinding using the ball mill is 2 to 20 G; the grinding using the ball mill is carried out in such a state that the metal-containing oxycarbonitride is mixed with a solvent containing no oxygen atom in the molecule; and when the ball mill is a planetary ball mill, the orbital centrifugal acceleration mill is 5 to 50 G.

Solution processed thin films and laminates, devices comprising such thin films and laminates, and method for their use and manufacture

Devices having a thin film or laminate structure comprising hafnium and/or zirconium oxy hydroxy compounds, and methods for making such devices, are disclosed. The hafnium and zirconium compounds can be doped, typically with other metals, such as lanthanum. Examples of electronic devices or components that can be made include, without limitation, insulators, transistors and capacitors. A method for patterning a device using the materials as positive or negative resists or as functional device components also is described. For example, a master plate for imprint lithography can be made. An embodiment of a method for making a device having a corrosion barrier also is described. Embodiments of an optical device comprising an optical substrate and coating also are described. Embodiments of a physical ruler also are disclosed, such as for accurately measuring dimensions using an electron microscope.

Photocatalytic Nanocomposite Material

The present invention relates to a photocatalytic nanocomposite material, wherein the realization of the optimal wavelength for optical activation is controlled and accordingly is designed to work together with a LED operating at the wavelength for yielding the maximum efficiency.

Alumina catalyst support

The present invention is directed to a high surface area, high pore volume porous alumina, comprising: aluminum oxide, optionally, silicon oxide and aluminosilicates, and optionally one or more dopants, said alumina having a specific surface area of from about 100 to about 500 square meters per gram and a total pore volume after calcination at 900° C. for 2 hours of greater than or equal to 1.2 cubic centimeters per gram, wherein less than or equal to 15% of the total pore volume is contributed by pores having a diameter of less than 10 nm.

Porous inorganic composite oxide

A porous inorganic composite oxide containing oxides of aluminum and of cerium and/or zirconium, and, optionally, oxides of one or more dopants selected from transition metals, rare earths, and mixtures thereof, and having a specific surface area, in m 2 /g, after calcining at 1100° C. for 5 hours, of ≧0.8235[Al]+11.157 and a total pore volume, in cm 3 /g, after calcining at 900° C. for 2 hours, of ≧0.0097[Al]+0.0647, wherein [Al] is the amount of oxides of aluminum, expressed as pbw Al 2 O 3 per 100 pbw of the composite oxide; a catalyst containing one or more noble metals dispersed on the porous inorganic composite oxide; and a method for making the porous inorganic composite oxide.

Process for producing propylene oxide

A multiple liquid phase composition and process for preparing propylene oxide including a reaction mixture of: (a) propylene, (b) at least one peroxide compound, (c) at least one catalyst, such as a titanium silicalite-1 (TS-I) catalyst, and (d) and a predetermined amount of a solvent mixture; wherein the solvent mixture comprises at least (i) at least one alcohol, such as methanol, and (ii) at least one non-reactive co-solvent; wherein the solvents are mixed at a predetermined concentration; wherein the non-reactive co-solvent has a different boiling point than propylene oxide; and wherein the resulting propylene oxide product partitions into a high affinity solvent during the reaction. The process of the present invention advantageously produces a waste stream with little or no significant amount of sodium chloride (NaCl).

Metal oxide particle production method and production device

An object of the present invention is to provide a method for producing metal oxide particles, in which metal oxide particles with high photocatalytic activity is produced, and a production apparatus therefor. The above object can be achieved by using a method for producing metal oxide particles, which includes subjecting a reaction gas containing metal chloride and an oxidizing gas containing no metal chloride in a reaction tube ( 11 ) to preheating, and then subjecting a combined gas composed of the reaction gas and the oxidizing gas to main heating in a main heating region (A) apart from the downstream side of the junction ( 5 b ), wherein the time until the combined gas from the junction ( 5 b ) arrives at the upstream end (A 1 ) of the main heating region (A) is adjusted to be less than 25 milliseconds.

Photocatalyst-coated body and photocatalytic coating liquid therefor

A photocatalyst-coated body comprises a substrate and a photocatalyst layer provided on the substrate, the photocatalyst layer comprising photocatalyst particles of 1 part or more by mass and less than 20 parts by mass, inorganic oxide particles of 70 parts or more by mass and less than 99 parts by mass, and the dried substance of a hydrolyzable silicone of zero parts or more by mass and less than 10 parts by mass, provided that a total amount of the photocatalyst particles, the dried substance of the inorganic oxide particles and the hydrolyzable silicone is 100 parts by mass in terms of silica. The inorganic oxide particles have a number average particle diameter ranging from 10 nm or more to less than 40 nm calculated by measuring lengths of 100 particles randomly selected from particles located within a visible field magnified 200,000 times by a scanning electron microscope.

Glass article provided with photocatalyst film

Provided is a glass article that improves the film strength of a photocatalyst film while maintaining the photocatalytic function and the reflection suppressing function of the photocatalyst film. The photocatalyst film on the glass sheet is formed to contain, in mass %, 50 to 82% of silicon oxide particles, 8 to 40% of titanium oxide particles, and 7 to 20% of a binder component composed of silicon oxide. The average particle diameter of the silicon oxide particles is set to at least 5 times the average particle diameter of the titanium oxide particles. The photocatalyst film is formed to have a structure such that some of the silicon oxide particles in the film serve as protruding silicon oxide particles that are not in contact with the glass sheet and that have their top portions protruding from the surrounding titanium oxide particles and being exposed on the surface of the film, while some of the titanium oxide particles are interposed between the glass sheet and the protruding silicon oxide particles.

Photoreactor

The present invention relates to a reactor for the photocatalytic treatment of liquid or gaseous streams, which reactor comprises a tube through which the stream to be treated flows, wherein, in the tube, there are arranged at least one light source, at least one flat means M 1 provided with at least one photocatalytically active material and at least one flat means M 2 reflecting the light radiation radiated by the at least one light source, wherein the reflecting surface of the at least one means M 2 and the inner wall of the tube are at an angle greater than or equal to 0°, in such a manner that the light exiting from the light source is reflected by the at least one means M 2 onto the photocatalytically active material, and to a method for the photocatalytic treatment of liquid or gaseous streams by irradiation with light in the reactor according to the invention.

Method for forming thermally stable nanoparticles on supports

An inverse micelle-based method for forming nanoparticles on supports includes dissolving a polymeric material in a solvent to provide a micelle solution. A nanoparticle source is dissolved in the micelle solution. A plurality of micelles having a nanoparticle in their core and an outer polymeric coating layer are formed in the micelle solution. The micelles are applied to a support. The polymeric coating layer is then removed from the micelles to expose the nanoparticles. A supported catalyst includes a nanocrystalline powder, thin film, or single crystal support. Metal nanoparticles having a median size from 0.5 nm to 25 nm, a size distribution having a standard deviation ≦0.1 of their median size are on or embedded in the support. The plurality of metal nanoparticles are dispersed and in a periodic arrangement. The metal nanoparticles maintain their periodic arrangement and size distribution following heat treatments of at least 1,000° C.

Photocatalytic structural member and deodorizing device

A photocatalytic structural member is provided with a substrate having a concave-convex structure formed on a surface thereof, and a photocatalyst film which is disposed on a side of the concave-convex structure of the substrate and reflects a shape of the concave-convex structure. The concave-convex structure is formed with a pitch smaller than a wavelength of light which causes a photocatalytic reaction on the photocatalyst film. A deodorizing device is provided with the photocatalytic structural member, a light source which emits the light from a side of the substrate to the photocatalytic structural member, and a fan which causes an air to flow to the photocatalytic structural member.

Stable Sub-Micron Titania Sols

The present invention is directed to compositions and processes for the production of stable, alkaline, high solids, low viscosity, low surface tension, low flammability, sub-micron titania sols that have minimal offensive odor and methods of their use. Compositions of the present invention include, for example, mixtures of strong and weak organic bases used as dispersants to stabilize the titania sols. The dispersant mixtures have been found to result in relatively high titania solids content, low surface tension, low viscosity suspensions that are low in flammability. Sols produced according to the present invention can be used, for example, in catalytic applications such as catalyst supports for diesel emission control, or in pollutant photocatalyst applications in which it is desirable to have the titania in sol form.

Method for stabilizing size of platinum hydroxide polymer

[Object] To provide a method for stabilizing a size of a platinum hydroxide polymer capable of maintaining solution stability of a platinum hydroxide polymer in a solution. [Solving Means] A method is provided for stabilizing a size of a platinum hydroxide polymer, including adding Zr ions to a solution containing a platinum hydroxide polymer at a Zr/Pt ratio of 1.0 to 40 in terms of molar concentration ratio.

Personal Advanced Oxidation Water Treatment System

A portable, personal advanced-oxidation water treatment system based on ozone and a catalyst such as titanium dioxide that can cycle and purify water to make it portable by removing organic contaminants. The unit can be used for long periods of time without having to replenish the active portions. The unit can be carried in a backpack or in a vehicle. Fresh water is typically loaded into the unit, and the unit is cycled until the water is pure enough to drink. A battery is used to produce ozone and to cycle the water through a reaction vessel and can optionally be charged with a small solar panel The unit can also be powered directly from a vehicle.

Deoxygenation of fatty acids for preparation of hydrocarbons

Embodiments of methods for making renewable diesel by deoxygenating (decarboxylating/decarbonylating/dehydrating) fatty acids to produce hydrocarbons are disclosed. Fatty acids are exposed to a catalyst selected from a) Pt and MO 3 on ZrO 2 (M is W, Mo, or a combination thereof), or b) Pt/Ge or Pt/Sn on carbon, and the catalyst decarboxylates at least 10% of the fatty acids. In particular embodiments, the catalyst consists essentially of 0.7 wt % Pt and 12 wt % WO 3 , relative to a mass of catalyst, or the catalyst consists essentially of a) 5 wt % Pt and b) 0.5 wt % Ge or 0.5 wt % Sn, relative to a mass of catalyst. Deoxygenation is performed without added hydrogen and at less than 100 psi. Disclosed embodiments of the catalysts deoxygenate at least 10% of fatty acids in a fatty acid feed, and remain capable of deoxygenating fatty acids for at least 200 minutes to more than 350 hours.

Composition containing oxides of zirconium, cerium and another rare earth having reduced maximum reducibility temperature, a process for preparation and use thereof in the field of catalysis

A composition is described that includes oxides of zirconium, cerium and another rare earth different from cerium, having a cerium oxide content not exceeding 50 wt % and, after calcination at 1000° C. for 6 hours, a maximal reducibility temperature not exceeding 500° C. and a specific surface of at least 45 m 2 /g. The composition can be prepared according to a method that includes continuously reacting a mixture that includes compounds of zirconium, cerium and another rare earth having a basic compound for a residence time not exceeding 100 milliseconds, wherein the precipitate is heated and contacted with a surfactant before calcination.

Nickel-based reforming catalyst

The present invention relates unique pore structures in nickel supported on alumina with the negligible formation of macropores. Incorporation of additional elements stabilizes the pore structure of the nickel supported on alumina. Additional element(s) were then further added into the nickel-supported materials. These additional element(s) further stabilize the pore structures under heating conditions. The improvements of pore structure stability under heating conditions and negligible presence of macropores limit the sintering of nickel metal to a mechanism of impeded diffusion. The negligible presence of macropores also limits the deposition of alkali metal hydroxide(s)/carbonate(s) to the outer shell of the catalyst pellet. Both of the negligible presence of macropores and improvement in pore structure stability allow for prolonging the catalyst life of these nickel supported on alumina catalysts of the present invention for reforming hydrocarbons.

METHOD OF SUPPRESSING INCREASE IN SO2 OXIDATION RATE OF NOx REMOVAL CATALYST

In a NO x removal catalyst used for removing nitrogen oxide in flue gas, when a silica (Si) component as an inhibitor that causes an increase in an SO 2 oxidation rate accumulates on a surface of the NO x removal catalyst, the silica component accumulating on the surface of the NO x removal catalyst is dissolved, thereby regenerating the catalyst. Accordingly, the inhibitor such as the silica component covering the surface of the NO x removal catalyst can be removed, thereby enabling to provide a catalyst without having an increase in the SO 2 oxidation rate of the regenerated NO x removal catalyst.

METHOD AND SYSTEM FOR FORMING PLUG AND PLAY METAL CATALYSTS

A metal catalyst is formed by vaporizing a quantity of metal and a quantity of carrier forming a vapor cloud. The vapor cloud is quenched forming precipitate nanoparticles comprising a portion of metal and a portion of carrier. The nanoparticles are impregnated onto supports. The supports are able to be used in existing heterogeneous catalysis systems. A system for forming metal catalysts comprises means for vaporizing a quantity of metals and a quantity of carrier, quenching the resulting vapor cloud and forming precipitate nanoparticles comprising a portion of metals and a portion of carrier. The system further comprises means for impregnating supports with the nanoparticles. 1. A method of making a metal catalyst comprising:a. providing a quantity of nanoparticles, wherein at least some of the nanoparticles comprise a first portion comprising catalyst material bonded to a second portion comprising a carrier;b. providing a quantity of supports; andc. combining the supports with the nanoparticles.2. The method of wherein the supports comprise pores and voids.3. The method of wherein the catalyst material comprises any among a list of at least one metal claim 1 , at least one metal alloy claim 1 , and any combination thereof.4. The method of wherein providing a quantity of nanoparticles comprises:a. loading a quantity of catalyst material and a quantity of carrier into a plasma gun in a desired ratio;b. vaporizing the quantity of catalyst material and quantity of carrier thereby forming a vapor cloud; andc. quenching the vapor cloud, thereby forming a quantity of nanoparticles.5. The method of wherein the carrier comprises an oxide.6. The method of wherein the oxide comprises silica claim 5 , alumina claim 5 , yttria claim 5 , zirconia claim 5 , titania claim 5 , ceria claim 5 , baria claim 5 , and any combination thereof.7. The method of wherein combining the supports with the nanoparticles comprises:a. suspending the nanoparticles in a solution, thereby forming a ...

Method for producing catalyst composition, catalyst composition, diesel particulate filter using the same, and exhaust gas purification system

Provided is a catalyst having the ability to combust PM at relatively low temperatures and having high HC and CO removal (conversion) efficiency even at the above operating temperature. In the catalyst composition, at least one kind of platinum group element selected from Pt, Rh, and Pd is dispersed in and supported by a platinum group-supporting carrier containing at least one kind of element selected from Zr, Al, Y, Si, Bi, Pr, and Tb, and the platinum group-supporting carrier is supported on the surface of a Ce oxide containing Ce as an essential component. The catalyst composition has both PM combustion activity and gas purification activity.

DOPED MATERIAL

A doped material comprises TiOand three non-metal dopants. The first non-metal dopant comprises sulfur, the second non-metal dopant comprises fluorine, and the third non-metal dopant comprises carbon. The sulfur dopant comprises a cationic dopant, the carbon dopant comprises a cationic dopant, and the fluorine dopant comprises an anionic dopant. The molar ratio of the TiOto the sulfur is approximately 99.75:0.25. The molar ratio of the TiOto the fluorine is approximately 99.1:0.9. The molar ratio of the TiOto the carbon is approximately 98.7:1.3. The material has a transparent, lateral growth crystalline atomic structure. The crystallite particle size is approximately 1 nm. The material is soluble to facilitate dissolving of the material in a solvent without requiring any dispersants to form a true solution. 1146-. (canceled)147. A photocatalytic doped material having a crystalline atomic structure comprising{'sub': '2', 'TiO;'}and two or more dopants;at least one of the dopants being a non-metal,the material being soluble to facilitate dissolving of the material in a polar solvent to form a true solution without any dispersants.148. A material as claimed in wherein substantially all of the TiOis in rutile phase.149. A material as claimed in wherein substantially all of the TiOis in anatase phase.150. A material as claimed in wherein the non-metal dopant is selected from the group comprising sulfur claim 147 , carbon claim 147 , nitrogen claim 147 , phosphorus claim 147 , fluorine claim 147 , chlorine claim 147 , bromine claim 147 , iodine claim 147 , selenium claim 147 , and astatine.151. A material as claimed in wherein the non-metal dopant comprises an anionic or cationic dopant.152. A material as claimed in wherein the material comprises at least two non-metal dopants preferably the material comprises at least three non-metal dopants.153. A material as claimed in wherein the first non-metal dopant comprises sulfur claim 152 , the second non-metal dopant ...

Ordered mesoporous titanosilicate and the process for the preparation thereof

The invention discloses three-dimensional, ordered, mesoporous titanosilicates wherein the Ti is in a tetrahedral geometry and exclusively substituted for Si in the silica framework. Such titanosilicates find use as catalysts for epoxidation, hydroxylation, C—H bond oxidation, oxidation of sulfides, aminolysis of epoxide and amoximation, with approx. 100% selectivity towards the products.

Neutral, Stable and Transparent Photocatalytic Titanium Dioxide Sols

A method for preparing a neutral, stable and transparent photocatalytic titanium dioxide sol is provided. The method comprises (1) contacting an alkaline titanium dioxide sol with an alkaline peptizing agent to provide a peptized alkaline titanium dioxide sol; (2) neutralizing the peptized alkaline titanium dioxide sol; and (3) obtaining or collecting the neutral, stable and transparent photocatalytic titanium dioxide sol. The titanium dioxide sol is stable and transparent over a range of pH of about 7.0 to about 9.5. The titanium dioxide sol may include crystallites of titanium dioxide having an average particle size of less than about 10 nm with at least 90% of the crystallites being in the anatase form. 1. A method for preparing a neutral , stable and transparent photocatalytic titanium dioxide sol , comprising the steps of:(1) reacting a hydrous titanium dioxide gel with an alkaline peptizing agent to provide a peptized alkaline titanium dioxide sol;(2) neutralizing the peptized alkaline titanium dioxide sol; and(3) obtaining the neutral, stable and transparent photocatalytic titanium dioxide sol.2. The method of claim 1 , wherein the peptized alkaline titanium dioxide sol is neutralized by boiling.3. The method of claim 1 , wherein the peptized alkaline titanium dioxide sol is neutralized by mixing hydrogen peroxide with the peptized alkaline titanium dioxide sol.4. The method of claim 1 , wherein the peptized alkaline titanium dioxide sol is neutralized by mixing an acid compound with the peptized alkaline titanium dioxide sol.5. The method of claim 4 , wherein the acid compound is selected from the group consisting of a first acid compound claim 4 , a second acid compound and combinations thereof.6. The method of claim 5 , wherein the first acid compound is selected from the group consisting of a mineral acid claim 5 , an organic acid and combinations thereof.7. The method of claim 6 , wherein the mineral acid is phosphoric acid claim 6 , and wherein the ...

Nanoporous photocatalyst having high specific surface area and high crystallinity and method for preparing the same

Disclosed is a nanoporous photocatalyst having a high specific surface area and high crystallinity and a method for preparing the same, capable of preparing nanoporous photocatalysts, which satisfy both of the high specific surface area of 350 m 2 /g to 650 m 2 /g and high crystallinity through a simple synthetic scheme, in mass production at a low price. The nanoporous catalyst having a high specific area and high crystallinity includes a plurality of nanopores having an average diameter of about 1 nm to about 3 nm. A micro-framework of the nanoporous photocatalyst has a single crystalline phase of anatase or a bicrystalline phase of anatase and brookite, and a specific surface area of the nanoporous photocatalyst is in a range of about 350 m 2 /g to 650 m 2 /g.

Hydrodesulfurization catalyst for hydrocarbon oil, process of producing same and method for hydrorefining

A hydrodesulfurization catalyst is produced by pre-sulfurizing a hydrodesulfurization catalyst Y including a support containing silica, alumina and titania and at least one metal component supported thereon and selected from VIA and VIII groups of the periodic table (comprising at least Mo), in which the total area of the diffraction peak area indicating the crystal structure of anatase titania (101) planes and the diffraction peak area indicating the crystal structure of rutile titania (110) planes in the support, measured by X-ray diffraction analysis being ¼ or less of the alumina diffraction peak area assigned to γ-alumina (400) planes. The molybdenum is formed into molybdenum disulfide crystal disposed in layers on the support by the pre-sulfurization, and having an average length of longer than 3.5 nm and 7 nm or shorter in the plane direction and an average number of laminated layers of more than 1.0 and 1.9 or fewer.

Method and apparatus for forming nanoparticles

A first layer of a catalyst material is formed on a substrate and heat treated to form a first plurality of nanoparticles. A second layer of a catalyst material is then formed over the substrate and the first plurality of nanoparticles and heat treated to form a second plurality of nanoparticles. The first layer of nanoparticles is advantageously not affected by the deposition or heat treatment of the second layer of catalyst material, for example being pinned or immobilised, optionally by oxidation, before formation of the second layer.

HETEROPOLY ACID PROMOTED CATALYST FOR SCR OF NOx WITH AMMONIA

The present invention concerns the selective removal of nitrogen oxides (NOx) from gases. In particular, the invention concerns a process, a highly alkali metal resistant heteropoly acid promoted catalyst and the use of said catalyst for removal of NOx from exhaust or flue gases, said gases comprising alkali or earth alkali metals. Such gases comprise for example flue gases arising from the burning of biomass, combined biomass and fossil fuel, and from waste incineration units. The process comprises the selective catalytic reduction (SCR) of NOx, such as nitrogen dioxide (NO 2 ) and nitrogen oxide (NO) with ammonia (NH 3 ) or a nitrogen containing compound selected from ammonium salts, urea or a urea derivative or a solution thereof as reductant.

NANOWIRE CATALYSTS AND METHODS FOR THEIR USE AND PREPARATION

Nanowires useful as heterogeneous catalysts are provided. The nanowire catalysts are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons. Related methods for use and manufacture of the same are also disclosed. 1. A catalytic nanowire comprising a combination of at least four different doping elements , wherein the doping elements are selected from a metal element , a semi-metal element and a non-metal element.2. The catalytic nanowire of claim 1 , wherein the catalytic nanowire comprises a metal oxide.3. The catalytic nanowire of claim 1 , wherein the catalytic nanowire comprises a lanthanide metal.4. The catalytic nanowire of claim 1 , wherein the catalytic nanowire comprises LaO claim 1 , NdO claim 1 , YbO claim 1 , EuO claim 1 , SmO claim 1 , YO claim 1 , CeO claim 1 , PrOor combinations thereof.5. The catalytic nanowire of claim 1 , wherein the catalytic nanowire comprises Ln1Ln2O claim 1 , wherein Ln1 and Ln2 are each independently a lanthanide element claim 1 , wherein Ln1 and Ln2 are not the same and x is a number ranging from greater than 0 to less than 4.6. The catalytic nanowire of claim 1 , wherein the catalytic nanowire comprises LaNdO claim 1 , wherein x is a number ranging from greater than 0 to less than 4.7. The catalytic nanowire of claim 1 , wherein the catalytic nanowire comprises LaNdO claim 1 , LaNdO claim 1 , LaNdO claim 1 , LaNdO claim 1 , LaNdO claim 1 , LaNdO claim 1 , LaNdOor combinations thereof.8. The catalytic nanowire of claim 1 , wherein the catalytic nanowire comprises a lanthanide oxide.9. The catalytic nanowire of claim 8 , wherein the lanthanide oxide comprises a mixed oxide.10. The catalytic nanowire of claim 9 , wherein the mixed oxide comprises Y—La claim 9 , Z—La claim 9 , P—La claim 9 , Ce—La or combinations thereof.11. The catalytic nanowire of claim 1 , wherein the doping elements are selected from Eu claim 1 , Na claim 1 , Sr claim 1 , Ca claim 1 , Mg claim 1 , Sm ...

PHOTOCATALYST POWDER AND PRODUCTION METHOD THEREOF

Disclosed herein are photocatalyst powder and a production method thereof, and by having photocatalyst particles corn binded without reduction of a specific surface area, the reduction of the specific surface area is nearly none while the pores are developed, as well as the absorption rate with respect to light is superior, the method of producing photocatalyst powder includes forming initial photocatalyst powder by molding nanoparticles of photocatalyst substance into a certain shape through extrusion, and splitting the initial photocatalyst powder into a plurality of photocatalyst powder by injecting the initial photocatalyst powder into a predetermined splitting solution, the initial photocatalyst powder being split into the plurality of photocatalyst powder by the predetermined spliting solution. 1. A method of producing photocatalyst powder , comprising:forming an initial photocatalyst powder by molding nanoparticles of photocatalyst substance into a certain shape through extrusion; andsplitting the initial photocatalyst powder into a plurality of photocatalyst powder by injecting the initial photocatalyst powder into a predetermined splitting solution, the initial photocatalyst powder being split into the plurality of photocatalyst powder by the predetermined splitting solution.2. The method of claim 1 , further comprising:calcining the split photocatalyst powder at a predetermined temperature and at a predetermined pressure; andsintering the calcinated photocatalyst powder at a predetermined temperature and at a predetermined pressure.3. The method of claim 1 , wherein:the predetermined splitting solution is at least one selected from the group comprising amorphous solution, colloidal solution, distilled water and solution having visible ray inducing substance being at least one selected from the group comprising K, Mn and Na.4. The method of claim 1 , wherein:the predetermined splitting solution comprises amorphous solution having same substance as the ...

Method for the preparation of a catalysed particulate filter and catalysed particulate filter

Method for the preparation of a catalysed particulate filter and a particulate filter. The method comprises the steps of a) providing a catalyst wash coat with a first catalyst active in burning off of soot and a second catalyst active in selective catalytic reduction of nitrogen oxides; b) coating a particulate filter body with the catalyst wash coat on the dispersion side and the permeate side of the filter body and within partition walls of the filter body; and c) drying and heat treating the coated filter body to obtain the catalysed particulate filter.

Method of preparing precious metal nitride nanoparticle compositions

A method of preparing a precious metal nitride nanoparticle composition, includes the step of ionizing nitrogen in the gas phase to create an active nitrogen species as a plasma. An atomic metal species of the precious metal is provided in the gas phase. The active nitrogen species in the gas phase is contacted with the atomic metal species of the precious metal in the gas phase to form a precious metal nitride. The precious metal nitride is deposited on the support. Precious metal nanoparticle compositions are also disclosed.

CATALYTIC PURIFICATION OF GASES

A zirconium-based mixed oxide or zirconium-based mixed hydroxide which is capable of (a) at least 90% v/v conversion of naphthalene at atmospheric pressure at a temperature in the range 600-700° C. using a residence time of about 0.3 seconds, and/or (b) providing an initial heat of adsorption of ammonia of greater than 150 kJ/mol when measured by ammonia flowing gas microcalorimetry. Also, a method for purifying gas produced from the gasification of carbonaceous materials, comprising the step of bringing the gas into contact with such mixed oxides or mixed hydroxides. 1. A zirconium-based mixed oxide or zirconium-based mixed hydroxide which is capable of (a) at least 90% v/v conversion of naphthalene at atmospheric pressure at a temperature in the range 600-700° C. using a residence time of about 0.3 seconds , and/or (b) providing an initial heat of adsorption of ammonia of greater than 150 kJ/mol when measured by ammonia flowing gas microcalorimetry.2. A mixed oxide or mixed hydroxide as claimed in which claim 1 , after hydrothermal treatment in 70% v/v steam in nitrogen at 700° C. for 85 hours claim 1 , is capable of at least 90% v/v conversion of naphthalene at atmospheric pressure at a temperature in the range 600-700° C. using a residence time of about 0.3 seconds.3. A mixed oxide or mixed hydroxide as claimed in having a total pore volume as measured by nitrogen porosimetry of at least 0.25 cm/g but less than 1.0 cm/g after calcination at 800° C. for 2 hours.4. A mixed oxide or mixed hydroxide as claimed in having a total pore volume as measured by nitrogen porosimetry of greater than 0.15 cm/g but less than 1.0 cm/g after calcination at 1000° C. for 2 hours.5. A mixed oxide or mixed hydroxide as claimed in claim 1 , additionally comprising cerium and/or lanthanum.6. A mixed oxide or mixed hydroxide as claimed in comprising:(a) at least 60 wt % zirconia and/or zirconium hydroxide,(b) 10-25 wt % ceria and/or cerium hydroxide, and(c) 1-10 wt % lanthana and/or ...

Ultraviolet oxidation device, ultrapure water production device using same, ultraviolet oxidation method, and ultrapure water production method

Disclosed is an ultraviolet oxidation device for decompositing organic materials present in water in low energy consumption and low cost, an ultrapure water production device using the same, an ultraviolet oxidation method, and an ultrapure water production method. An ultraviolet oxidation device including: a flow tank 10; photocatalyst fibers 12; an ultraviolet radiating unit 14; and an ultraviolet radiating unit housing unit 16 which is arranged to occupy an entire cross-section of the flow tank intersecting with flowing direction of the water to be processed in the flow tank 10; wherein the ultraviolet radiating unit housing unit 16 is constructed such that the water to he processed flows toward the ultraviolet radiating unit 14 from an upstream side, and after flowing in the housing unit 16, the water to be processed flows out to a downstream side, and is formed of a material that allows the ultraviolet rays from the ultraviolet radiating unit 14 to radiate the photocatalyst fibers 12.

Photocatalyst coated body and photocatalyst coating liquid

A photocatalyst coated body includes a base and a photocatalyst layer provided on the base. The photocatalyst coated body is characterized in that photocatalyst layer contains 1-20 (inclusive) parts by mass of photocatalyst particles, 30-98 (inclusive) parts by mass of silica particles and 1-50 (inclusive) parts by mass of zirconia particles, so that the total all of these particles is 100 parts by mass. The photocatalyst coated body is also characterized in that the zirconia particles are at least one kind of particles selected from the group consisting of crystalline zirconia particles having an average crystallite diameter of 10 nm or less and amorphous zirconia particles. Such photocatalyst coated body has excellent photocatalytic degradation function and excellent weather resistance; and also it is capable of suppressing the formation of intermediate products such as NO 2 , while increasing the amount of NO x removed during removal of NO x in the air.

Production method for exhaust gas-purifying catalyst and motor vehicle

A method for producing an exhaust gas purifying catalyst according to the present invention includes step (a) of preparing a metal oxide support containing zirconium; step (b) of preparing a solution containing rhodium; and step (c) of adding the metal oxide support prepared in the step (a), and ammonium carbonate, ammonium hydrogencarbonate or ammonia water, to the solution prepared in the step (b) to obtain the solution having a pH adjusted to a range of 3.0 or higher and 7.5 or lower. The present invention provides a method capable of producing an exhaust gas purifying catalyst including a metal oxide support containing zirconium and rhodium of a minute particle size which is supported on the metal oxide support at a high degree of dispersion.

SULFUR-RESISTANT CATALYST SUPPORT MATERIAL

A catalyst support material and a catalyst system incorporating said support material along with a method of making the same is provided for use in applications in which the support material is exposed to sulfur-containing impurities. The catalyst support material generally comprises an inorganic oxide base material having a surface and pores of predetermined size; and a zirconium layer adapted to interact with the surface and sized to be received by the pores of the base material. The catalyst support material being prepared by applying a layer of a zirconium compound to the surface and pores of an inorganic oxide base material followed by calcination in order to convert the zirconium compound to a metal, a metal oxide, or a mixture thereof. 1. A catalyst support material for use in applications in which the support material is exposed to sulfur-containing impurities , the catalyst support material comprising:an inorganic oxide base material having a surface and pores of predetermined size; anda zirconium layer adapted to interact with the surface and sized to be received by the pores of the base material.2. The catalyst support material of claim 1 , wherein the zirconium layer is zirconium metal claim 1 , zirconium oxide claim 1 , or a mixture thereof.3. The catalyst support material of claim 1 , wherein the surface of the base material has a size given as a BET surface area in the range of about 20 to 400 m/g.4. The catalyst support material of claim 1 , wherein the inorganic oxide base material is one selected from the group of aluminum oxides claim 1 , silicon oxides claim 1 , titanium oxides claim 1 , and aluminum silicates.5. The catalyst support material of claim 1 , wherein the zirconium layer is present in the catalyst support material in an amount ranging between about 1% and 30% by weight.6. The catalyst support material of claim 1 , wherein the catalyst support material has the shape of a powder claim 1 , beads claim 1 , or pellets.7. The catalyst ...

Single reaction synthesis of texturized catalysts

Methods are described for making a texturized catalyst. The textural promoter may be a high-surface area, high-porosity, stable metal oxide support. The catalyst is manufactured by reacting catalyst precursor materials and support materials in a single, solvent deficient reaction to form a catalyst. The catalyst may be particles or a coating or partial coating of a support surface.

Catalyst support materials with oxygen storage capacity (osc) and method of making thereof

A new type of catalyst support with oxygen storage capacity (OSC) and methods of making the same are disclosed. The composition ratio is x(Ce 1-w Zr w 0 2 ):yM:zL:(1-x-y-z)AI 2 0 3 , where Ce 1-w Zr w 0 2 is the oxygen storage composition with stabilizer Zr0 2 , molar ratio (w) in the range of 0 to about 0.8, and a weight ratio (x) of about 0.05 to about 0.8; M is an interactive promoter for oxygen storage capacity with a weight ratio (y) of 0 to about 0.10; and L is a stabilizer for the support Al 2 0 3 with weight ratio (z) of from 0 to about 0.10. In some cases, M or L can act as both OSC promoter and thermal stabilizer. The weight percentage range of ceria-zirconia and other metal and rare earth oxides (x+y+z) is from about 5 to about 80% relative to total oxides. Combining platinum group metals (PGM) and adhesive with the catalyst supports, a new wash coat made therefrom is provided that comprises a mixture of catalyst support materials according to the relationship (a)RE-Ce—Zr0 2 +(3)CZMLA+(1-a-β)RE-AI 2 0 3 , where RE-Ce—Zr0 2 is a commercial OSC material of rare earth elements stabilized ceria zirconia having a weight ratio (a) ranging from 0 to about 0.7; CZMLA is the catalyst support material of the present disclosure having a weight ratio (β) ranging from about 0.2 to about 1 such that (α+β)<1; and RE-AI 2 0 3 is rare earth element stabilized alumina having a weight ratio equal to (1-α-β). The new wash coat made therefrom exhibits a lower activation temperature compared with traditional formulation of wash coat by at least 50° C. The new wash coat made therefrom also requires less RE-Ce—Zr0 2 oxide and/or less PGM in the formulation of emission control catalyst for gasoline and diesel engines.

CARRIER FOR NOx REDUCTION CATALYST

A NOx reduction catalyst carrier yields a NOx reduction catalyst with an improved permissible dose of poisoning substances such as arsenic. More specifically, the present invention relates to a NOx reduction catalyst carrier comprising TiO 2 , having a honeycomb structure and having a specific surface area greater than 100 m 2 /g.

Catalysts and process for producing same

A catalyst, a hydrocarbon steam reforming catalyst, and a method for producing the same are provided. A catalytic metal containing at least Ni is supported on a composite oxide containing R, Zr, and oxygen, at a composition of not less than 10 mol % and not more than 90 mol % of R, not less than 10 mol % and not more than 90 mol % of Zr, and not less than 0 mol % and not more than 20 mol % of M (M: elements other than oxygen, R, and Zr), with respect to the total of the elements other than oxygen being 100 mol %, wherein the composite oxide has a specific surface area of 11 to 90 m 2 /g, and the largest peak in the wavelength range of 200 to 800 cm −1 of Raman spectrum with a full width at half maximum of 20 to 72 cm −1 .

REGENERATING A TITANIUM SILICALITE CATALYST

Embodiments of the present disclosure include a process for regenerating a titanium silicalite catalyst by contacting the fouled titanium silicalite catalyst with a regeneration solution that includes at least one oxidizing agent. 1. A process for regenerating a titanium silicalite catalyst fouled during a reaction between an olefin and a peroxide compound to produce an oxirane , the process comprising contacting the fouled titanium silicalite catalyst with a regeneration solution including at least one oxidizing agent to provide a regenerated titanium silicalite catalyst , wherein the regeneration solution has an oxidizing agent concentration of less than 0.50 weight percent based on a total weight of the regeneration solution prior to contact with the fouled titanium silicalite catalyst , exclusive of the titanium silicalite catalyst.2. The process of claim 1 , wherein the regeneration solution has a pH of less than 2.3. The process of claim 2 , further including adjusting the pH of the regeneration solution to less than 2 prior to contacting the fouled titanium silicalite catalyst with the regeneration solution.4. The process of claim 1 , further including washing the regenerated titanium silicalite catalyst with an organic compound.5. The process of claim 1 , wherein the regeneration solution has an oxidizing agent concentration in a range of from 0.10 weight percent to 0.49 weight percent claim 1 , based on the total weight of the regeneration solution claim 1 , exclusive of the titanium silicalite catalyst.6. A process for regenerating a titanium silicalite catalyst fouled during a reaction between an olefin and a peroxide compound to produce an oxirane claim 1 , the process comprising the step of contacting the fouled titanium silicalite catalyst with a regeneration solution comprising at least one oxidizing agent and further comprising an organic compound to provide the regenerated titanium silicalite catalyst claim 1 , with the proviso that the process does ...

Process for non-oxidative dehydrogenation of alkane

The invention relates to a process for producing an alkene by non-oxidative dehydrogenation of an alkane, comprising contacting a feed stream comprising the alkane with a catalyst composition comprising an unsupported catalyst comprising ZrV 2 O 7 at a temperature of 400 to 600° C.

METHOD AND SYSTEM FOR FORMING PLUG AND PLAY METAL COMPOUND CATALYSTS

A metal compound catalyst is formed by vaporizing a quantity of catalyst material and a quantity of carrier thereby forming a vapor cloud, exposing the vapor cloud to a co-reactant and quenching the vapor cloud. The nanoparticles are impregnated onto supports. The supports are able to be used in existing heterogeneous catalysis systems. A system for forming metal compound catalysts comprises means for vaporizing a quantity of catalyst material and a quantity of carrier, quenching the resulting vapor cloud, forming precipitate nanoparticles comprising a portion of catalyst material and a portion of carrier, and subjecting the nanoparticles to a co-reactant. The system further comprises means for impregnating the of supports with the nanoparticles. 129-. (canceled)30. A metal compound catalyst prepared by a method comprising: i. loading a quantity of catalyst material in powder form and a quantity of carrier comprising an oxide into a plasma gun in a desired ratio;', 'ii. vaporizing the quantity of catalyst material and the quantity of carrier by the plasma gun, thereby forming a vapor cloud;', 'iii. quenching the vapor cloud received from the plasma gun, thereby forming precipitate nanoparticles; and', 'iv. injecting a co-reactant into a substantially low oxygen environment such that the co-reactant will react with one of the vapor cloud, the precipitate nanoparticles, and any combination thereof,, 'a. providing a quantity of nanoparticles, comprising the stepswherein at least some of the nanoparticles comprise a first portion comprising a catalyst material bonded to a second portion comprising a carrier, wherein the carrier comprises an oxide;b. providing a quantity of supports comprising a same oxide as in the carrier loaded in the plasma gun;c. combining the supports with the nanoparticles; andd. forming a structure having the catalyst material bonded with the carrier, wherein the carrier is bonded with the support through an oxide-oxide bond.31. The metal ...

TITANIA CARRIER FOR SUPPORTING CATALYST, MANGANESE OXIDE-TITANIA CATALYST COMPRISING THE SAME, APPARATUS AND METHOD FOR MANUFACTURING THE TITANIA CARRIER AND MANGANESE OXIDE-TITANIA CATALYST, AND METHOD FOR REMOVING NITROGEN OXIDES

Provided are a titania carrier for supporting a catalyst for removing nitrogen oxides, a manganese oxide-titania catalyst comprising the same, an apparatus and a method for preparing the same, and a method for removing nitrogen oxides. More particularly, provided are a titania carrier having a specific surface area of 100 m/g-150 m/g, an average pore volume of 0.1 cm/g-0.2 cm/g, and an average particle size of 5 nm-20 nm, and an apparatus and method for preparing the same. Provided also are a manganese oxide-titania catalyst comprising the titania carrier and manganese oxide supported thereon, a method for preparing the same, and a method for removing nitrogen oxides using the catalyst. The catalyst has high activity and dispersibility, and thus provides excellent denitrogenation efficiency even in a low temperature range of about 200° C. 1. An apparatus for preparing a titania carrier , comprising:a titania precursor supplying unit in which a titania precursor is allowed to vaporize and supplied to a reaction unit;an oxygen supplying line through which an oxygen source is supplied to a reaction unit;a reaction unit in which the titania precursor supplied from the titania precursor supplying unit is reacted to produce titania particles; anda recovering unit in which the titania particles produced at the reaction unit are cooled and collected,wherein the recovering unit comprises a cooling system for cooling the titania particles introduced from the reaction unit, and a collecting system for collecting the titania particles cooled at the cooling system, and the cooling system has a turbulence-forming section in a flow path through which the titania particles are passed.2. The apparatus for preparing a titania carrier according to claim 1 , wherein the cooling system comprises an external tube claim 1 , an internal tube formed inside the external tube claim 1 , and a coolant flow path through which a coolant flows formed between the internal tube and the external tube ...

Novel titanium glycolate catalyst and process for the preparation thereof

The invention relates to a process for the preparation of titanium glycolate comprising the steps of reacting a titanium alkoxide with ethylene glycol in a molar ratio of the titanium alkoxide to ethylene glycol from 1:2 to 1:4 in a protic solvent at a temperature in the range from 50 to 100° C. to form titanium glycolate. The invention also relates to the titanium glycolate obtainable by said process and to use of said titanium glycolate in a catalyst composition in the preparation of a polyester or in a transesterification process.

SANITARY WARE

Disclosed is a sanitary ware including a photocatalyst layer that has a high level of water resistance and abrasion resistance while maintaining a good photocatalytic activity. The sanitary ware includes a glaze layer and a photocatalyst layer provided on the glaze layer. The photocatalyst layer is an oxide film that is a co-fired product of a precursor of titanium oxide and a precursor of zirconium oxide and contains 65 to 90% by mass of titanium oxide and 10 to 35% by mass of zirconium oxide. 1. A sanitary ware comprising a glaze layer and a photocatalyst layer provided on the glaze layer , whereinthe photocatalyst layer is an oxide film comprising a co-fired product of a precursor of titanium oxide and a precursor of zirconium oxide and contains 65 to 90% by mass of titanium oxide and 10 to 35% by mass of zirconium oxide.2. The sanitary ware according to claim 1 , wherein the content of titanium oxide is 65 to 85% by mass and the content of zirconium oxide is 15 to 35% by mass in the photocatalyst layer.3. The sanitary ware according to claim 1 , wherein photocatalyst layer has methylene blue decomposition index of 5 or more.4. The sanitary ware according to claim 1 , wherein photocatalyst layer has a thickness of 50 to 200 nm.5. The sanitary ware according to claim 1 , wherein the firing has been carried out at 700 to 800° C.6. The sanitary ware according to claim 1 , wherein the precursor of titanium oxide is a titanium alkoxide or a titanium chelate.7. The sanitary ware according to claim 1 , wherein the titanium alkoxide is represented by general formula Ti(OR)wherein OR represents a Calkoxy group claim 1 , acetyl acetonate claim 1 , or ethyl acetoacetate.8. The sanitary ware according to claim 7 , wherein the titanium alkoxide is one of or a mixture of two or more of substances selected from the group consisting of tetraethoxytitanium claim 7 , tetraisopropoxytitanium claim 7 , tetra-n-propoxytitanium claim 7 , tetrabutoxytitanium claim 7 , ...

METHOD FOR PREDICTING THE EFFICIENCY OF A TiO2 PHOTOCATALYST

The present invention relates to a method for predicting the efficiency of a TiOphotocatalyst in a light-induced reaction. 1. Method for predicting the efficiency of a TiOphotocatalyst in a light-induced reaction comprising the steps of:{'sub': '2', 'a) preparing a suspension of a TiOphotocatalyst with a suitable solvent;'}b) adding the reagent of the reaction;c) exciting said photocatalyst with a light source;{'sub': '2', 'd) measuring absorbance spectrum of the photoinduced TiOspecies;'}e) analyzing the intensity and profile of the time decay of the transient absorption signals measured upon irradiation of different photocatalysts in order to determine their relative efficiencies.2. Method according to claim 1 , wherein the TiOphotocatalyst is doped with a metal.3. Method according to claim 2 , wherein said metal is selected from Ru claim 2 , Pt claim 2 , Ni claim 2 , Cu claim 2 , Fe or a mixture thereof.4. Method according to claim 1 , wherein said light source is a pulsed laser beam.5. Method according to claim 4 , wherein said pulsed laser beam has a minimum energy of 2 mJ/pulse.6. Method according to claim 1 , wherein the solvent is selected from water claim 1 , an organic solvent or a mixture thereof.7. Method according to claim 6 , wherein said solvent is acetonitrile.8. Method according to claim 1 , wherein the suspension in step a) is in a concentration of at least 0.01 mg/mL.9. Method according to claim 1 , wherein said reagent in step b) is COin a reaction for reducing CO.10. Method according to claim 1 , wherein said light-induced reaction is the photoinduced water splitting or the photodegradation of pollutants. The present invention relates to the field of photocatalysts and in particular relates to a method for predicting the efficiency of a TiOphotocatalyst in a light-induced reaction. More in particular, said light-induced reaction is the photoreduction of CO.The combustion of fossil fuels, as the main source of energy production, releases large ...

Catalyst for purifying exhaust gas

Provided is a catalyst for purifying an exhaust gas, the catalyst excelling in catalytic performance and oxygen storage capacity. The catalyst for purifying an exhaust gas is a catalyst for purifying an exhaust gas which includes a ceria-zirconia composite oxide having a pyrochlore structure and a ceria-zirconia composite oxide having a cubic crystal structure, wherein at least a part of the ceria-zirconia composite oxide is composited with the ceria-zirconia composite oxide.

Nanostructured titania semiconductor material and its production process

A nanostructured titania semiconductor material termed TSG-IMP having a predetermined crystal size is produced by a sol-gel method by adding a titanium alkoxide to an alcoholic solution, adding an acid to the alcoholic solution, subjecting the acidic solution to agitation under reflux conditions: stabilizing the medium and adding bidistilled water under reflux until gelation; subjecting the gel to aging until complete formation of the titania which is dried and calcined. 7. A process to make the nanostructured titania semiconductor material TSG-IMP of claim 1 , comprising the following steps:I). Preparation of an alcoholic solution: consists of adding, to a reflux system with constant agitation, a titanium alkoxide to an alcoholic solution;II). Solution in acid medium: consists of adding an acid to the alcoholic solution of step I) controlling the pH from 1 to 5.III). Hydrolysis: consists of subjecting the solution in acid medium obtained in step II) to stirring and reflux conditions at a temperature of 70 to 80° C., stabilize the medium and proceed to add bidistilled water, in a water/alkoxide molar ratio of 1-2/0.100-0.150, continuing reflux until gel formation;IV). Aging: consists of subjecting the gel obtained in step III) to an aging treatment under the same agitation and reflux of step III), for 1 to 24 hours, for the total titania formation;V). Drying: consists of drying nanostructured titania obtained in step IV), at a temperature of 50 to 80° C., for a 1 to 24 hour period; andVI). Activation or calcination: consists of subject the dry titania obtained in step V), to a calcination step at a temperature of 200 to 600° C., for a 1 to 12 hours.8. The process of claim 7 , wherein the titanium alkoxide used in step I) claim 7 , preferably is three or four branched or linear carbons.9. The process of claim 7 , wherein the alcoholic solution used in step I) claim 7 , preferable comes from three or four linear or branched carbon alcohols.10. The process of claim 7 , ...

PROCESS FOR TREATING SHAPED CATALYST BODIES AND SHAPED CATALYST BODIES HAVING INCREASED MECHANICAL STRENGTH

The present invention provides a process for treating shaped catalyst bodies which has the following steps: 116-. (canceled)17. A process for treating shaped catalyst bodies , which comprises the process steps:a) providing finished shaped catalyst bodies,b) impregnating the finished shaped catalyst bodies with a peptizing auxiliary in an amount of liquid which does not exceed the theoretical water absorption of the shaped catalyst bodies,c) thermal treating the impregnated shaped catalyst bodies at from 50° C. to 250° C. andd) calcinating the thermally treated shaped catalyst bodies at from 250° C. to 600° C.18. The process according to claim 17 , wherein an ammonia solution or a nitric acid solution is used as peptizing auxiliary.19. The process according to claim 18 , wherein an aqueous ammonia solution or an aqueous nitric acid solution is used as peptizing auxiliary.20. The process according to claim 17 , which claim 17 , after process step b) claim 17 , further comprises the process stepbb) allowing the peptizing auxiliary to act for up to 10 hours.21. The process according to claim 17 , wherein the thermal treatment in process step c) is carried out under atmospheric pressure or under reduced pressure or in a static or agitated bed of the shaped catalyst bodies.22. The process according to claim 21 , wherein the reduced pressure is from 0.1 to 0.9 bar.23. The process according to claim 17 , wherein the calcination in process step d) is carried out in a static or agitated bed of the shaped catalyst bodies.24. The process according to claim 17 , wherein extrudates or pellets or granules are used as shaped catalyst bodies.25. The process according to claim 17 , wherein heterogeneous catalysts are used as catalyst for the shaped catalyst bodies.26. The process according to claim 17 , wherein the catalyst is zeolite claim 17 , NiO/CoO/CuO/ZrO claim 17 , TiO claim 17 , CuO/AlOor CoO/SiO.27. The process according to claim 26 , wherein the zeolite is a boron-beta- ...

Method for Transforming Nitrogen-Containing Compounds

The invention relates to a method for the selective catalytic transformation of nitrogen-containing compounds. The transformation relates to the selective catalytic reduction (SCR) of nitrogen oxides, or the selective catalytic oxidation (SCO) of nitrogen hydrides and nitrogen-containing organic compounds, preferably in waste gas flows of combustion processes with motors and without motors and industrial applications. The catalytic converter comprises a titano-(silico)-alumo-phosphate.

POLYCONDENSATION CATALYST FOR PRODUCING POLYESTER AND PRODUCTION OF POLYESTER USING THE POLYCONDENSATION CATALYST

The invention provides a polycondensation catalyst for producing polyester by an esterification reaction or a transesterification reaction between a dicarboxylic acid or an ester-forming derivative thereof and a glycol, wherein the polycondensation catalyst comprises particles of a solid base having on the surfaces an inner coating layer of titanic acid in an amount of from 0.1 to 50 parts by weight in terms of TiOper 100 parts by weight of the solid base, and an outer coating layer either of an oxide of at least one element selected from aluminum, zirconium and silicon, or of a composite oxide of at least two elements selected from aluminum, zirconium and silicon on the surface of the inner coating layer in an amount of from 1 to 50 parts by weight per 100 parts by weight of the solid base. 1. A polycondensation catalyst for producing polyester by an esterification reaction or a transesterification reaction between a dicarboxylic acid or an ester-forming derivative thereof and a glycol , wherein the polycondensation catalyst comprises particles of a solid base having on the surfaces an inner coating layer of titanic acid in an amount of from 0.1 to 50 parts by weight in terms of TiOper 100 parts by weight of the solid base , and an outer coating layer either of an oxide of at least one element selected from aluminum , zirconium and silicon , or of a composite oxide of at least two elements selected from aluminum , zirconium and silicon on the surface of the inner coating layer in an amount of from 1 to 50 parts by weight per 100 parts by weight of the solid base.2. The polycondensation catalyst according to claim 1 , wherein the solid base is magnesium hydroxide.3. The polycondensation catalyst according to claim 1 , wherein the solid base is hydrotalcite.4. A method for producing a polycondensation catalyst for producing polyester by an esterification reaction or a transesterification reaction between a dicarboxylic acid or an ester-forming derivative thereof and ...

Use of photo catalytic material for self-cleaning banknotes

Self-cleaning banknotes are provided using coatings, inks and additives which are photo-active and catalytic to reactions which are effective in breaking up organic contaminants or dirt to allow for the self-cleaning of banknotes by ambient light exposure as well as the cleaning of processed banknotes using equipment with more intense optical excitation, thus increasing their usable life. The invention is usable with all substrates and particularly polymeric substrates such as biaxially-oriented polypropylene (BOPP). The invention further discloses a system which allows a certain class of fitness parameters to cause these banknotes to be redirected to a cleaning module, be reevaluated, and then either returned to circulation or rejected and/or destroyed. In addition, inks which are photo-catalytic can be used for extending the life of the banknotes in printed regions.

PHOTOCATALYST MEMBER

Disclosed is a photocatalyst member including a glaze layer and a photoctalyst layer provided on the glaze layer, the photocatalyst layer is good in layer strength, water resistance, or abrasion resistance. More specifically, the photocatalyst member includes a base having a glaze layer and a photocatalyst layer that is provided on the glaze layer and contains titanium oxide and zirconium titanate, wherein the content of zirconium titanate in the photocatalyst layer is 15 to 75% by mass based on the total content of titanium oxide and zirconium titanate, and the content of zirconium titanate in an area from around an interface between the photocatalyst layer and the base to an median line in the thickness of the photocatalyst layer is larger than the content of zirconium titanate in an area near the external surface of the photocatalyst layer. 1. A photocatalyst member comprising a base , a glaze layer provided on the base , and a photocatalyst layer which is provided on the glaze layer and contains titanium oxide and zirconium titanate , whereinthe content of zirconium titanate in the photocatalyst layer is 15 to 75% by mass based on the total content of titanium oxide and zirconium titanate; andthe content of zirconium titanate in an area from around an interface between the photocatalyst layer and the base to an median line in the thickness of the photocatalyst layer is larger than the content of zirconium titanate in an area near the external surface of the photocatalyst layer.2. The photocatalyst member according to claim 1 , wherein zirconium titanate is not observed on the external surface of the photocatalyst layer.3. The photocatalyst member according to claim 1 , wherein the content of zirconium titanate in the photocatalyst layer is 35 to 65% by mass.4. The photocatalyst member according to claim 1 , wherein the thickness of the photocatalyst layer is 50 nm to 200 nm.5. The photocatalyst member according to claims 1 , which is a sanitary ware.6. A process ...

Catalytic Article for Decomposing Volatile Organic Compound and Method for Preparing the Same

A catalytic article for decomposition of a volatile organic compound includes a porous support body, a plurality of active centers formed on the support body and adapted for catalytic decomposition of the volatile organic compound, and a plurality of capture centers bound to the support body. Each of the active centers is composed of one of a noble metal, a transition metal oxide, and the combination thereof. Each of the capture centers includes at least one functional group that is adapted for attracting or binding the volatile organic compound. A method for preparing the catalytic article is also disclosed.

AIR PURIFICATION DEVICE

An air purification unit has a housing which has at least one inlet opening for delivering an air stream and at least one outlet opening for discharging the air stream delivered via the inlet opening. At least one air purification unit and at least one lighting unit are arranged in the housing, wherein the at least one air purification unit and the at least one lighting unit are arranged opposite one another in the housing. The at least one air purification unit has at least one photocatalytically active surface region. The air stream is guided in the housing at least partially along the at least one photocatalytically active surface region of the at least one air purification unit, wherein the surface region is at least partially coated with titanium dioxide or doped with titanium dioxide ions ions. 115-. (canceled)16: Air purification device , comprising a housing having at least one inlet opening for supply of an air flow and at least one outlet opening for discharge of the air flow supplied by way of the inlet opening , wherein at least one air purifying unit and at least one lighting unit are arranged in the housing , wherein the at least one air purifying unit and the at least one lighting unit are arranged opposite one another in the housing , the at least one air purifying unit has at least one photocatalytically active surface region and the air flow is guided in the housing at least partially along the at least one photocatalytically active surface region of the at least one air purifying unit , wherein the at least one photocatalytically active surface region of the at least one air purifying unit can be irradiated with light by the at least one lighting unit and the at least one photocatalytically active surface region is coated at least partly with titanium dioxide or doped with titanium dioxide ions , wherein the at least one air purifying unit comprises two air purifying units arranged opposite one another at the inner walls of the housing , wherein ...

FISCHER-TROPSCH PROCESS USING REDUCED COBALT CATALYST

A process for the conversion of a feed comprising a mixture of hydrogen and carbon monoxide to hydrocarbons, the hydrogen and carbon monoxide in the feed being present in a ratio of from 1:9 to 9:1 by volume, the process comprising the step of contacting the feed at elevated temperature and atmospheric or elevated pressure with a catalyst comprising titanium dioxide and co bait wherein the catalyst initially comprises from 30% to 95% metallic cobalt by weight of cobalt. 112-. (canceled)15. (canceled)16. A catalyst according to claim 13 , wherein the catalyst comprises from 40% to 85% metallic cobalt by weight of cobalt.17. A catalyst according to claim 13 , wherein the catalyst comprises from 50% to 85% metallic cobalt by weight of cobalt.18. A catalyst according to claim 13 , wherein the catalyst comprises from 70% to 80% metallic cobalt by weight of cobalt.19. A catalyst according to claim 13 , wherein the catalyst comprises from 5% to 30% cobalt by weight of the catalyst.20. A catalyst according to claim 13 , wherein the catalyst further comprises one or more promoters selected from chromium claim 13 , nickel claim 13 , iron claim 13 , molybdenum claim 13 , tungestein claim 13 , manganese claim 13 , boron claim 13 , zirconium claim 13 , gallium claim 13 , thorium claim 13 , lanthanum claim 13 , cerium claim 13 , ruthenium claim 13 , rhenium claim 13 , palladium claim 13 , platinum claim 13 , and compounds and/or mixtures thereof.21. A catalyst according to claim 20 , wherein the promoter is present in an amount up to 5% by weight of the catalyst.22. A process according to claim 14 , wherein the reducing is performed by exposing the catalyst composition to a hydrogen gas-containing stream claim 14 , wherein the hydrogen gas-containing stream comprises less than 10% carbon monoxide gas by volume of carbon monoxide gas and hydrogen gas.23. A process according to claim 14 , wherein the reducing is performed by exposing the catalyst composition to a carbon monoxide ...

TITANIUM OXIDE DISPERSION LIQUID, TITANIUM OXIDE COATING LIQUID, AND PHOTOCATALYST COATING FILM

Provided is a titanium oxide dispersion liquid that has dispersibility and dispersion stability both at superior levels and, when applied and dried, can form a photocatalyst coating film capable of rapidly developing excellent photocatalytic activity. The titanium oxide dispersion liquid according to the present invention includes titanium oxide particles (A), a dispersing agent (B), and a solvent (C). The titanium oxide particles (A) support a transition metal compound. The dispersing agent (B) includes a poly(acrylic acid) or a salt thereof. The poly(acrylic acid) or a salt thereof in the dispersing agent (B) preferably includes a poly(acrylic acid) alkali metal salt. The poly(acrylic acid) or a salt thereof in the dispersing agent (B) preferably has a weight-average molecular weight of from 1000 to 100000. 1. A titanium oxide dispersion liquid comprising:titanium oxide particles (A) supporting a transition metal compound;a dispersing agent (B) comprising a poly(acrylic acid) or a salt of the poly(acrylic acid); anda solvent (C).2. The titanium oxide dispersion liquid according to claim 1 ,wherein the dispersing agent (B) comprises a poly(acrylic acid) alkali metal salt as the poly(acrylic acid) or a salt thereof.3. The titanium oxide dispersion liquid according to one of and claim 1 ,wherein the poly(acrylic acid) or a salt thereof in the dispersing agent (B) has a weight-average molecular weight of from 1000 to 100000.4. The titanium oxide dispersion liquid according to claim 1 ,wherein the titanium oxide particles (A) supporting a transition metal compound comprise titanium oxide particles supporting an iron compound.5. The titanium oxide dispersion liquid according to claim 1 ,wherein the titanium oxide particles (A) supporting a transition metal compound comprise titanium oxide particles supporting the transition metal compound on a plane acting as an oxidation site.6. The titanium oxide dispersion liquid according to claim 1 ,wherein the titanium oxide ...

Metal Oxide Mesocrystal, and Method for Producing Same

Various metal oxide mesocrystals can be synthesized in a simple manner by a method for producing a metal oxide mesocrystal, the method comprising the step of annealing an aqueous precursor solution comprising one or more metal oxide precursors, an ammonium salt, a surfactant, and water at 300 to 600° C. Composite mesocrystals consisting of a plurality of metal oxides or an alloy oxide can also be provided. 1. A method for producing a metal oxide mesocrystal , the method comprising the step of maintaining an aqueous precursor solution comprising one or more metal oxide precursors , an ammonium salt , a surfactant , and water at 300 to 600° C.2. The method according to claim 1 , wherein the one or more metal oxide precursors are a metal nitrate and/or a metal fluoride salt.3. The method according to claim 1 , wherein the ammonium salt is NHNO.4. The method according to claim 1 , wherein the surfactant is at least one member selected from the group consisting of anionic surfactants claim 1 , cationic surfactants claim 1 , amphoteric surfactants claim 1 , and nonionic surfactants.5. The method according to claim 1 , wherein claim 1 , in the aqueous precursor solution claim 1 , the ratio of metal oxide precursor to surfactant is 1 to 1000:1 (molar ratio) claim 1 , and the ratio of ammonium salt to surfactant is 1 to 1000:1 (molar ratio).6. (canceled)7. A mesocrystal consisting of at least one member selected from the group consisting of claim 1 , nickel oxide claim 1 , iron oxide claim 1 , cobalt oxide claim 1 , zirconium oxide claim 1 , and cerium oxide claim 1 , the mesocrystal having a specific surface area of 0.5 m/g or more and an average width of 0.01 to 1000 μm.8. (canceled)9. A mesocrystal consisting of nanoparticles of two or more metal oxides.10. The mesocrystal according to claim 9 , which has a specific surface area of 0.5 m/g or more.11. (canceled)12. The mesocrystal according to claim 9 , wherein the metal oxide nanoparticles consist of two or more ...

Egg-shell type hybrid structure of highly dispersed nanoparticle-metal oxide support, preparation method thereof, and use thereof

The present invention relates to an egg-shell type hybrid structure of highly dispersed nanoparticles-metal oxide support, a preparation method thereof, and a use thereof. Specifically, the present invention relates to an egg-shell type hybrid structure of highly dispersed nanoparticles-metal oxide support, providing an excellent platform in a size of nanometers or micrometers which can support nanoparticles selectively in the porous shell portion by employing a metal oxide support with an average diameter of nanometers or micrometers including a core of nonporous metal oxide and a shell of porous metal oxides, a preparation method thereof, and a use thereof.

Composition for Mineralizing Carbon Dioxide and Nitrogen Oxide Gases and Uses of Same

The invention relates to a composition for mineralising carbon dioxide and nitrogen oxide gases, which comprises a mixture of magnesium (between 1 and 25%), iron (between 1 and 23%), calcium monoxide (between 1 and 25%), titanium dioxide (between 0.1 and 11%) and silicon dioxide (between 16 and 75%), with a particle diameter between 100 nm and 4000 μm. The composition causes the mineralisation of carbon dioxide (CO) and of the gaseous chemical compounds known as “nitrogen oxides” (NO) in the atmosphere. This composition can be added or mixed as an additive in paints, dyes, resins and elastic polymers (gum and natural rubber) in parts with wear, and for any type of covering. 1. A composition for mineralising gases of carbon dioxide and nitrogen oxides comprising a mixture of igneous rocks which comprises magnesium (between 1 and 25%) , iron (between 1 and 23%) , calcium monoxide (between 1 and 25%) , titanium dioxide (between 0.1 and 11%) and silicon dioxide (between 16 and 75%) , with a particle diameter between 100 nm and 4000 μm.2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. The composition according to claim 1 , comprising between 0.1 and 2% of titanium dioxide.7. A coating comprising the composition defined in .8. A coating comprising the composition defined in .9. A paint claim 1 , lacquer claim 1 , dye claim 1 , resin claim 1 , natural rubber claim 1 , gum and/or varnish claim 1 , comprising the composition defined in .10. A paint claim 6 , lacquer claim 6 , dye claim 6 , resin claim 6 , natural rubber claim 6 , gum and/or varnish claim 6 , comprising the composition defined in .11. The natural rubber and/or gum according to claim 9 , wherein it is an element subject to wear.12. The natural rubber and/or gum according to claim 11 , wherein said element subject to wear is a tire.13. The paint claim 9 , lacquer claim 9 , dye claim 9 , resin claim 9 , natural rubber claim 9 , gum and/or varnish according to claim 9 , wherein it comprises a percentage by ...

CATALYST FOR HYDROGENATION OF CARBONYL COMPOUND AND ALCOHOL PRODUCTION METHOD

Provided is a catalyst including a metal component including a first component that is rhenium and one or more second components selected from the group consisting of silicon, gallium, germanium, and indium and a carrier on which the metal component is supported, the carrier including an oxide of a metal belonging to Group 4 of the periodic table. Also provided is an alcohol production method in which a carbonyl compound is treated using the above catalyst. It is possible to produce an alcohol by a hydrogenation reaction of a carbonyl compound with high selectivity and high efficiency while reducing side reactions. 1. An alcohol production method in which an alcohol is produced from a carbonyl compound , the method comprising producing an alcohol by contacting a carbonyl compound with a catalyst , the catalyst comprising a metal component comprising a first component that is rhenium and one or more second components selected from the group consisting of silicon , gallium , germanium , and indium and a carrier on which the metal component is supported , the carrier comprising an oxide of a metal belonging to Group 4 of the periodic table.2. The alcohol production method according to claim 1 , wherein a mass ratio of elements that are the second components included in the catalyst to the rhenium element included in the catalyst is in a range of 0.1 to 10.3. The alcohol production method according to claim 1 , wherein the oxide of a metal belonging to Group 4 of the periodic table claim 1 , the oxide being included in the catalyst claim 1 , comprises titanium oxide and/or zirconium oxide.4. The alcohol production method according to claim 1 , wherein the catalyst is a catalyst prepared by a method comprising attaching the metal component to a carrier comprising a sulfate ion.5. The alcohol production method according to claim 4 , wherein the sulfate ion content in the carrier is 0.01% by mass to 10% by mass of the mass of the carrier.6. The alcohol production method ...

Visible-Light-Activated Multilayered Photocatalyst And The Method Of Its Preparation

Visible-light-active and photostable, multilayered materials and their preparation method based on surface-modified titanium(IV) oxide have been invented. 1. Preparation method of a visible-light-activated multilayered photocatalyst characterized in that:a) modifies the surface of titanium(IV) oxide in the form of powder or coating by impregnation with a modifier solution, where the modifier is an aromatic organic compound with at least two —OH or —COOH groups or a hexachloroplatinate(IV) ion,b) the protective layer of titanium(IV) oxide is applied on the modified material, where the known ALD or “spin-coating” techniques are used.2. Method according to claim 1 , characterized in that it uses crystalline titanium(IV) oxide with a structure of anatase or being a mixture of anatase and rutile structure.3. Method according to claim 1 , characterized in that stage a) is carried out in water or alcohol solution of the modifier of the 10mol/dmminimal concentration and the product of the modification is dried.5. Method according to claim 1 , characterized in that the organic is a compound selected from the group consisting of phthalic acid claim 1 , 4-sulfophthalic acid claim 1 , 4-amino-2-hydroxybenzoic acid claim 1 , 3-hydroxy-2-naphthoic acid claim 1 , salicylic acid claim 1 , 6-hydroxysalicylic acid claim 1 , 5-hydroxysalicylic acid claim 1 , 5-sulfosalicylic acid claim 1 , 3 claim 1 ,5-dinitrosalicylic acid claim 1 , 2 claim 1 ,5-dihydroxyterephthalic acid claim 1 , aurintricarboxylic acid claim 1 , disodium salt of 1 claim 1 ,4-dihydroxy-1 claim 1 ,3-benzenodisulfonic acid claim 1 , gallic acid claim 1 , pyrogallol claim 1 , 2 claim 1 ,3-naphthalenediol claim 1 , 4-methylcatechol claim 1 ,3-5-di-tert-butyl-catechol claim 1 , p-nitrocatechol claim 1 , 3 claim 1 ,4-dihydroxy-1-phenylalanine (DOPA) claim 1 , catechol (Table 2) claim 1 , rutin and ascorbic acid.6. Method according to claim 1 , characterized in that stage b) uses alcoholates claim 1 , preferably titanium( ...

SMALL PARTICLE COMPOSITIONS AND ASSOCIATED METHODS

Milling methods that use grinding media particles formed of a ceramic material having an interlamellar spacing of less than 1250 nm. 1. Grinding media comprising:grinding media particles formed of a ceramic material, the ceramic material having an interlamellar spacing of less than 1250 nm.2. Grinding media comprising:grinding media particles comprising a core material and a coating formed on the core material, the coating including a plurality of layers, at least one of the layers having a thickness of less than 100 nanometers.3. The grinding media of claim 2 , wherein at least one of the layers has a thickness of less than 10 nanometers.4. The grinding media of claim 2 , wherein multiple layers have a thickness of less than 10 nanometers.5. The grinding media of claim 2 , wherein the coating includes at least 10 layers.6. The grinding media of claim 2 , wherein a first layer comprises zirconium and a second layer claim 2 , formed on the first layer claim 2 , comprises aluminum.7. The grinding media of claim 2 , wherein the particles have an average size of less than 150 micron.8. The grinding media of claim 2 , wherein the core material has a density of greater than 5 grams/cubic centimeter.9. Grinding media comprising:grinding media particles formed of a nanocrystalline composite comprising a plurality of nanoparticles dispersed in a matrix material.10. The grinding media of claim 9 , wherein the nanoparticles have an average particle size of less than 10 nanometers.11. The grinding media of claim 12 , wherein the nanoparticles comprise a transition metal nitride.12. The grinding media of claim 12 , wherein the matrix material comprises a nitride.13. A method comprising:milling inorganic feed particles using grinding media to produce an inorganic milled particle composition having an average particle size of less than 100 nm and a contamination level of less than 500 ppm, the feed particles having an average particle size of greater than 10 times the average ...

Method for the production of new nanomaterials

A method for producing new nanomaterials, 80 to 100 mol % of which are composed of TiO2 and 0 to 20 mol % are composed of another metal or semi-metal oxide that has a specific surface of 100 to 300 m2.g−1and 1 to 3 hydroxyl groups per nm2.

CATALYST, AND METHOD FOR DIRECT CONVERSION OF SYNGAS TO PREPARE LIGHT OLEFINS

A process for direct synthesis of light olefins uses syngas as the feed raw material. This catalytic conversion process is conducted in a fixed bed or a moving bed using a composite catalyst containing components A and B (A+B). The active ingredient of catalyst A is metal oxide; and catalyst B is an oxide supported zeolite. A carrier is one or more of AlO, SiO, TiO, ZrO, CeO, MgO and GaOhaving hierarchical pores; the zeolite is one or more of CHA and AEI structures. The loading of the zeolite is 4%-45% wt. A weight ratio of the active ingredients in the catalyst A and the catalyst B is within a range of 0.1-20, and preferably 0.3-5. The total selectivity of the light olefins comprising ethylene, propylene and butylene can reach 50-90%, while the selectivity of a methane byproduct is less than 15%. 1. A catalyst , wherein the catalyst is a composite catalyst composed of A+B; the catalyst component A and the catalyst component B are compounded by mechanical mixing method; the active ingredients of the catalyst component A are active metal oxides; the catalyst component B are supported zeolites; the carrier is at least one of porous AlO , SiO , TiO , ZrO , CeO , MgO and GaO; the zeolite is at least one of CHA and AEI structures; the loading of the zeolite is 4%-45% wt; and the active metal oxide is at least one of MnO , MnCrO , MnAlO , MnZrO , ZnO , ZnCrO , ZnAlO , CoAlOand FeAlO.2. The catalyst according to claim 1 , wherein at least one of porous AlO claim 1 , SiO claim 1 , TiO claim 1 , ZrO claim 1 , CeO claim 1 , MgO and GaOin the catalyst component B is used as the carrier; specific surface area is 30-250 m/g; pore volume is 0.25-0.80 ml/g; through calculation according to the specific surface area claim 1 , mesoporous specific surface area occupies 30-75% and macroporous specific surface area occupies 25-70%; and the zeolite is used as an active component and dispersed on the carrier by in situ growth or physical mixing mode.3. The catalyst according to claim 1 , ...

Method of manufacturing micronized sandstone obtained from ceramics or industrial wastes of ceramic manufacturing containing TiO2 bio-additive, and product thereof

The present invention discloses a method of manufacturing micronized sandstone obtained from ceramics or industrial wastes of ceramic manufacturing, such as white paste, natural stones or clinker, including TiOas bio-additive, and product obtained by the micronized sandstone thereof. The ceramics and industrial wastes of ceramic are grinded in several steps and the resultant powders are collected by means of individual filters and further combined in a nanopowder micronizer for posterior treatment, where TiOhydrolyzed can be optionally added. This micronized sandstone comprising the bio-additive TiOis used in the production of plasters, mortars, grouts and/or as additive for paints and/or epoxy enriched with TiO. The micronized sandstone bio-additive with TiOcan be additionally subjected to two optional embodiments of the invention: treatment with or without the use of a pigment. In order to obtain the final product that can be used in the production of blocks, floors and other products of various sizes, an agglomerating agent combined with TiOis added to the micronized sandstone comprising the bio-additive TiO, either in an aqueous solution or as a dry product, optionally including colored oxides. 1. Method of manufacturing micronized sandstone obtained from ceramics or industrial waste of ceramics manufacturing containing TiObio-additive , characterized by comprising the steps of:{'b': 1', '2', '3, 'a. grinding the ceramics or ceramic waste in several mills/grinders (, , ),'}{'b': '4', 'b. obtaining the micronized sandstone () by passing the grinded ceramic material into a micronizer,'}{'b': 5', '4, 'c. adding pigments or colored oxides () to the micronized powder thereof (),'}{'b': 5', '5, 'sub': '2', 'i': 'b', 'd. processing the micronized colored powder () with a hydrolyzed solution of TiO(),'}{'b': 1', '1, 'sub': '2', 'e. drying (S) the micronized colored sandstone comprising TiOadditive (P)'}{'b': '1', 'sub': '2', 'f. mixing the obtained product (P) with an ...

INTEGRATED PROCESS FOR MAKING PROPENE OXIDE AND AN ALKYL TERT-BUTYL ETHER

An integrated process for making propene oxide and an alkyl tert-butyl ether comprises dehydrogenating a feed stream comprising propane and iso-butane to provide a stream comprising propene, iso-butene and hydrogen; separating this stream into a stream consisting essentially of hydrogen and a stream comprising propene and iso-butene; separating the stream comprising propene and iso-butene into a stream comprising propene and a stream comprising iso-butene; reacting a part or all of the stream comprising iso-butene with an alkanol in the presence of a solid acid catalyst to provide an alkyl tert-butyl ether; and reacting a part or all of the stream comprising propene with hydrogen peroxide in the presence of an epoxidation catalyst to provide propene oxide. 110-. (canceled)11. An integrated process for making propene oxide and an alkyl tert-butyl ether comprising;{'b': 1', '2, 'a) a step of dehydrogenating a feed stream, S, comprising propane and iso-butane, to provide a stream, S, comprising propene, iso-butene and hydrogen;'}{'b': 2', '3', '4, 'b) a separation step separating stream S into a stream, S, consisting essentially of hydrogen and a stream, S, comprising propene and iso-butene;'}{'b': 4', '5', '6, 'c) a separation step separating stream S into a stream, S, comprising propene and a stream, S, comprising iso-butene;'}{'b': 5', '7, 'd) a step of reacting a part or all of stream S with hydrogen peroxide in the presence of an epoxidation catalyst to provide a stream, S, comprising propene oxide;'}{'b': '7', 'e) a separation step separating propene oxide from stream S;'}{'b': 6', '8, 'f) a step of reacting a part or all of stream S with an alkanol in the presence of a solid acid catalyst, to provide a stream, S, comprising an alkyl tert-butyl ether; and'}{'b': '8', 'g) a separation step separating the alkyl tert-butyl ether from stream S.'}12. The process of claim 11 , wherein the alkanol is methanol.13595. The process of claim 11 , wherein unreacted propane is ...

Photocatalytic Conversion of Carbon Dioxide and Water Into Substituted or Unsubstituted Hydrocarbon(s)

A method for the production of hydrocarbon(s), such as methane, substituted hydrocarbons, such as methanol, or the production of hydrogen, the method comprising the steps of contacting a first catalyst with water in order to photocatalyse the splitting of at least some of the water into hydrogen and oxygen; and contacting a second catalyst with a gas stream comprising carbon dioxide and at least some of the hydrogen produced from step (a) in order to photocatalyse the reaction between the hydrogen and carbon dioxide to produce hydrocarbon(s), such as methane, and/or substituted hydrocarbons, such as methanol. In an embodiment, the catalyst comprises gold and or ruthenium nanoclusters supported on a substrate. 1. A method for the production of hydrocarbon(s) , such as methane , or substituted hydrocarbons , such as methanol , the method comprising the steps of:contacting a catalyst with water and carbon dioxide in the presence of light in order to photocatalyse:(i) the splitting of at least some of the water into hydrogen and oxygen; and(ii) the reaction between hydrogen and carbon dioxide to produce at least one of a hydrocarbon and/or substituted hydrocarbons;wherein the catalyst comprises at least gold and ruthenium, in the form of at least one nanocluster supported by a substrate.2. The method according to claim 1 , wherein support substrate is selected from the group comprising graphene claim 1 , graphite claim 1 , carbon black claim 1 , nanotubes claim 1 , fullerenes claim 1 , zeolites claim 1 , carbon nitrides claim 1 , metal nitrides and or oxides including zinc oxide or titanium oxide.3. The method according to claim 1 , wherein the gold and ruthenium nanocluster has at least one Au—Ru bond having a distance in the range of from about 2.5 to 3.0 Å.4. The method according to claim 1 , wherein the gold and ruthenium nanocluster comprise an average cluster size less than about 2 nm.5. A method for the production of hydrocarbon(s) claim 1 , such as methane claim ...

METHOD FOR KETONISATION OF BIOLOGICAL MATERIAL

A method for producing ketones includes a) providing a feedstock of biological origin having fatty acids and/or fatty acid derivatives having an average chain length of 24 C-atoms or less; b) subjecting the feedstock to a catalytic ketonisation reaction in the presence of aK2O/TiO2-catalyst; and c) obtaining from the ketonisation reaction a product stream having ketones, which ketones have a longer average hydrocarbon chain length than the average hydrocarbon chain length in the feedstock, wherein step b) is carried out directly on the feedstock and in the presence of the K2O/TiO2-catalyst as the sole catalyst applied in the ketonisation reaction. 1. A method for producing ketones , which method comprises:a) providing a feedstock of biological origin containing fatty acids and/or fatty acid derivatives having an average chain length of 24 C-atoms or less;{'sub': 2', '2, 'b) subjecting said feedstock to a catalytic ketonisation reaction in a presence of a KO/TiO-catalyst; and'}c) obtaining from said ketonisation reaction a product stream containing ketones, which ketones have a longer average hydrocarbon chain length than the average hydrocarbon chain length in said feedstock;{'sub': 2', '2, 'wherein the subjecting is carried out directly on said feedstock and in a presence of said KO/TiO-catalyst as a sole catalyst applied in said ketonisation reaction.'}2. The method according to claim 1 , wherein the subjecting is carried out directly on said feedstock without preceding or simultaneous hydrogenation of double bonds present in the fatty acids and/or fatty acid derivatives in said feedstock.3. The method according to claim 1 , comprising:performing said ketonisation reaction by introducing the feedstock in liquid phase.4. The method according to claim 1 , wherein said feedstock of biological origin contains unsaturated fatty acids and/or fatty acid derivatives claim 1 , or esters.5. The method according to claim 1 , comprising:performing said ketonisation reaction ...

METHOD FOR PRODUCING SURFACE-TREATED METAL TITANIUM MATERIAL OR TITANIUM ALLOY MATERIAL, AND SURFACE-TREATED MATERIAL

A material that is useful as a wear-resistant member, a highly functional photocatalytic material, a photoelectric conversion element material, etc., is produced without the need for complicated processes or complicated handling, which are problems of the prior art. Provided is a method for producing a surface-treated metallic titanium material or titanium alloy material, the method comprising the steps of (1) forming titanium nitride on the surface of a metallic titanium material, and (2) heating the metallic titanium material with titanium nitride formed on the surface thereof obtained in step (1) in an oxidizing atmosphere. Also provided is a method for producing a surface-treated metallic titanium material or titanium alloy material, the method comprising, between steps (1) and (2) above, the step of anodizing the metallic titanium material with titanium nitride formed on the surface thereof obtained in step (1) in an electrolyte solution that does not have an etching effect on titanium, thereby forming a titanium oxide film. Further provided is a surface-treated material. 1. A method for producing a surface-treated metallic titanium material or titanium alloy material used for an application selected from the group consisting of photocatalytic materials , photoelectric conversion element materials , slide-resistant materials , and wear-resistant materials , the method comprising the steps of:(1) forming titanium nitride on the surface of a metallic titanium material or a titanium alloy material by one treatment method selected from the group consisting of heat treatment under ammonia gas atmosphere and heat treatment under nitrogen gas atmosphere, at a heating temperature of 750° C. or more;(2) anodizing the metallic titanium material or titanium alloy material with the titanium nitride formed on the surface thereof obtained in step (1) by applying a voltage of 10 V or more in an electrolyte solution that does not have an etching effect on titanium, thereby ...

PROCESS FOR PRODUCING RENEWABLE PRODUCTS

The present disclosure relates to a method for producing renewable ketones, paraffin waxes, base oil components and alkenes from a feedstock of biological origin, wherein the method includes ketonisation of esters of fatty acids and monohydric alcohols wherein the alcohols have carbon chain length of two or more. 1. A method for producing simultaneously renewable ketones and renewable alkenes from a feedstock of biological origin , the method comprising steps of:a) providing a feedstock of biological origin containing fatty acids and/or fatty acid esters;b) subjecting the feedstock to esterification reaction in a presence of a monohydric alcohol, wherein the monohydric alcohol has a carbon chain length of two or more, yielding esters of the fatty acids and the monohydric alcohol, in proviso that when the feedstock includes esters of fatty acids and a monohydric alcohol, wherein the monohydric alcohol has a carbon chain length of two or more, step b) is optional,c) subjecting the esters of the fatty acid and the monohydric alcohol to ketonisation reaction in a presence of a metal oxide ketonisation catalyst, yielding an intermediate product stream containing ketones, alkenes and carbon dioxide; andd) separating the alkenes from the intermediate product stream yielding an alkene depleted intermediate product stream and the separated alkenes.2. The method according to claim 1 , comprising:subjecting the feedstock to prehydrogenation reaction in a presence of hydrogenation catalyst prior to step b).3. The method according to claim 1 , comprising:purifying the feedstock prior to step b).4. The method according to claim 1 , comprising:purifying the ester of fatty acid and the monohydric alcohol prior to step c).5. The method according to claim 1 , comprising:subjecting the ester of fatty acid and the monohydric alcohol to prehydrogenation reaction in a presence of hydrogenation catalyst prior to step c).6. The method according to claim 1 , wherein the ketonisation ...

CATALYST AND PROCESS FOR PREPARING ACROLEIN AND/OR ACRYLIC ACID BY DEHYDRATION REACTION OF GLYCERIN

A catalyst composition comprising at least an heteropolyacid deposited on a porous titania carrier. 126-. (canceled)27. A process for preparing acrolein by dehydration of glycerin , carried out in the presence of a catalyst , wherein the catalyst composition comprising at least an heteropolyacid in which protons in the hetropolyacid may be partially exchanged by at least one cation selected from elements belonging to Group 1 to Group 16 of the Periodic Table of Elements that have been deposited on a porous titania carrier.29. The process of claim 27 , in which said titania carrier comprises rutile or anatase or amorphous titanium oxide.30. The process of claim 27 , in which said titania earner comprises at least 80% anatase.31. The process of claim 27 , in which said cation is at least one alkali metal cation.32. The process of claim 27 , in which said alkali metal is cesium.33. The process of claim 28 , in which said compound contains at least one element selected from the group comprising W claim 28 , Mo and V.34. A process for preparing acrolein by dehydration of glycerin claim 28 , carried out in the presence of a catalyst claim 28 , wherein the catalyst is prepared according to a method for preparing a catalyst composition comprising impregnating a titania carrier with a solution of at least one metal selected from elements belonging to the Group 1 to Group 16 of the Periodic Table of Elements or onium claim 28 , drying and firing the resulting solid mixture claim 28 , secondly impregnating the resulting solid mixture with a solution of heteropolyacid claim 28 , drying claim 28 , and firing the resulting solid mixture.35. A process for preparing acrolein by dehydration of glycerin claim 28 , carried out in the presence of a catalyst claim 28 , wherein the catalyst is prepared according to a method for preparing a catalyst composition comprising impregnating a titania carrier with a solution of heteropolyacid claim 28 , drying and firing the resulting solid ...

METALLIC NANOPARTICLE CATALYSTS EMBEDDED IN POROUS OXIDE SUPPORT, WHICH SHOW HIGH CATALYTIC ACTIVITY EVEN AT LOW TEMPERATURES

The present invention relates to a metallic nanoparticle catalyst, and more particularly, to a porous catalyst in which metallic nanoparticles are embedded in a porous oxide support, and a method for preparing the porous catalyst. To this end, a porous catalyst composition having metallic nanoparticles of the present invention includes an oxide matrix structure having mesopores and micropores; and metal or metal oxide nanoparticles embedded in the oxide matrix structure having the mesopores and micropores. Thus, metallic nanoparticle catalysts having high activity even at low temperature are realized. 1. A porous catalyst composition having metallic nanoparticles comprising:an oxide matrix structure having mesopores and micropores; andmetal or metal oxide nanoparticles embedded in the oxide matrix structure having the mesopores and micropores.2. The porous catalyst composition having metallic nanoparticles according to claim 1 ,wherein the metal or metal oxide nanoparticles are non-uniformly or non-hierarchically dispersed.3. A method for preparing a porous catalyst composition having metallic nanoparticles claim 1 , comprising:a step of covering metallic nanoparticles containing at least any one of a metal and a metal oxide with a stabilizer to stabilize the metallic nanoparticles and then binding a polymer to surfaces of the metallic nanoparticles to functionalize the metallic nanoparticles (Step 1);a step of mixing an oxide precursor with a solution in which the functionalized metallic nanoparticles and an activator are mixed and dispersed, thereby synthesizing a metallic nanoparticle dispersion embedded in a porous oxide support (Step 2); anda step of calcining the metallic nanoparticle dispersion (Step 3).4. The method for preparing a porous catalyst composition having metallic nanoparticles according to claim 3 ,wherein a polymer used for the functionalization has a molecular weight selected in a range of 200 to 20 k Da.5. The method for preparing a porous ...

Photocatalytic element for purification and disinfection of air and water and method for the production thereof

The invention relates to the purification and disinfection of air and water. A photocatalytic element consists of sintered glass beads with a pore volume fraction from 20% to 40% and a pore size from 0.1 to 0.5 mm, the surface of which is coated with a titanium dioxide powder, having a specific surface area of 150-400 m 2 /g, at the rate of 0.5-2% relative to the total mass of the photocatalytic element. The surface of the glass beads has a relief shape with a relief depression of 0.5-10 pm. The method for producing the photocatalytic element comprises sintering the glass beads at a temperature that is 5-20° C. higher than the glass softening temperature, modifying the bead surface with chemical etching agents, and coating the bead surface with the titanium dioxide powder from a water suspension at a pH of 2.9±0.1.

FLUIDIZABLE CATALYSTS FOR OXIDATIVE DEHYDROGENATION OF HYDROCARBONS

Fluidizable catalysts for oxygen-free oxidative dehydrogenation of alkanes to corresponding olefins. The catalysts contain 10-20% (by weight per total catalyst weight) of one or more vanadium oxides as the catalytic material, which are mounted upon an alumina support that is modified with zirconia at alumina/zirconia ratios of 5:1 up to 1:2. Various methods of preparing and characterizing the fluidizable catalysts are also provided. 1: A fluidizable catalyst for oxidative dehydrogenation of an alkane comprising:a zirconia-modified alumina support material; and10-20% of one or more vanadium oxides by weight based on the total catalyst weight, the one or more vanadium oxides being adsorbed onto the support material;wherein the support material comprises an alumina/zirconia weight ratio of 1-5:1-3.2: The fluidizable catalyst of claim 1 , wherein the one or more vanadium oxides are selected from the group consisting of VO claim 1 , VOand VO.3: The fluidizable catalyst of claim 2 , comprising at least 50% of VObased on total weight of the one or more vanadium oxides.4: The fluidizable catalyst of claim 1 , wherein the alumina/zirconia weight ratio is 1-2:1.5: The fluidizable catalyst of claim 1 , wherein the one or more vanadium oxides form a crystalline phase on the surface of the zirconia-modified alumina support material.6: The fluidizable catalyst of claim 1 , having an average particle size of 40-120 μm.7: The fluidizable catalyst of claim 1 , wherein the fluidizable catalyst comprises a plurality of particles and more than 75% of the particles are in the 40-120 μm size range.8: The fluidizable catalyst of claim 1 , having an apparent particle density of 1.5-3.5 g/cm.9: The fluidizable catalyst of claim 1 , having Class B powder properties in accordance with Geldart particle classification.10: The fluidizable catalyst of claim 1 , having a BET surface area of 10-50 m/g.11: The fluidizable catalyst of claim 1 , wherein the zirconia present in the alumina/zirconia ...

Duct Assemblies for Air Management Systems and Methods of Manufacture

An ultraviolet light surface protection system for a duct may comprise an interior surface of the duct; a light source operable to emit a germicidal ultraviolet light into a flow path of the duct defined by the interior surface of the duct to sterilize an air to be provided to a conditioned area; and a coating disposed on the interior surface, the coating configured to be ultraviolet resistive, reflective, and anti-microbial. 1. An ultraviolet light surface protection system for a duct , comprising:an interior surface of the duct;a light source operable to emit a germicidal ultraviolet light into a flow path of the duct defined by the interior surface of the duct to sterilize an air to be provided to a conditioned area; anda coating system disposed on the interior surface, the coating system configured to be ultraviolet resistive, reflective, and anti-microbial.2. The ultraviolet light surface protection system for the duct of claim 1 , wherein the coating system comprises an ultraviolet resistance layer claim 1 , a reflectivity layer claim 1 , an anti-microbial layer claim 1 , and a hydrophobicity layer.3. The ultraviolet light surface protection system for the duct of claim 1 , wherein the coating comprises a quaternary ammonium compound configured to be hydrophobic and anti-microbial.4. The ultraviolet light surface protection system for the duct of claim 1 , wherein the coating comprises a photoactivated metal oxide.5. The ultraviolet light surface protection system for the duct of claim 4 , wherein the photoactivated metal oxide comprises of at least one of titanium dioxide claim 4 , zinc oxide or titanium dioxide doped with nitrogen claim 4 , sulfur or iron.6. The ultraviolet light surface protection system for the duct of claim 1 , wherein the germicidal ultraviolet light has a wavelength between about 180 nm and about 280 nm.7. The ultraviolet light surface protection system for the duct of claim 1 , wherein the coating comprises a photocatalytic ...

Hydrocarbon Synthesis Catalyst, Its Preparation Process and Its Use

The present invention relates to catalysts, more particularly to a cobalt-containing catalyst composition. The present invention further relates to a process for preparing a cobalt-containing catalyst precursor, a process for preparing a cobalt-containing catalyst, and a hydrocarbon synthesis process wherein such a catalyst is used. According to a first aspect of the invention, there is provided a cobalt-containing catalyst composition comprising cobalt and/or a cobalt compound supported on and/or in a catalyst support; the catalyst composition also including a titanium compound on and/or in the catalyst support, and a manganese compound on and/or in the catalyst support. 1. A cobalt-containing catalyst composition comprising cobalt and/or a cobalt compound supported on and/or in a catalyst support; the catalyst composition also including a titanium compound on and/or in the catalyst support , and a manganese compound on and/or in the catalyst support.2. The catalyst composition of wherein the catalyst composition includes a dopant capable of enhancing the reducibility of the cobalt compound.3. The catalyst composition of either one of or wherein the catalyst support is selected from the group consisting of alumina in the form of one or more aluminium oxides; silica (SiO); titania (TiO); magnesia (MgO); zinc oxide (ZnO); silicon carbide; and mixtures thereof.4. The catalyst composition of wherein the catalyst support is an alumina catalyst support or a silica (SiO) catalyst support.5. A process for preparing a cobalt-containing catalyst precursor claim 3 , the process comprising introducing a cobalt compound onto and/or into a catalyst support; prior to and/or during and/or subsequent to introducing the cobalt compound onto and/or into the catalyst support claim 3 , introducing a titanium compound onto and/or into the catalyst support; and prior to claim 3 , and/or during claim 3 , and/or subsequent to introducing the cobalt compound onto and/or into the catalyst ...

Catalyzed ceramic candle filter and method of cleaning process off- or exhaust gases

Ceramic candle filter and use of the filter in the removal of particulate matter in form of soot, ash, metals and met-al compounds, together with hydrocarbons and nitrogen oxides being present in process off-gas or engine exhaust gas, the filter includes a combined SCR and oxidation catalyst being arranged on the dispersion side and within wall of the filter; and a palladium including catalyst arranged on the permeation side and within wall of the filter facing the permeation side.

Nano-sized functional binder

Described are catalytic articles comprising a substrate having a washcoat on the substrate, the washcoat containing a catalytic component having a first average (D50) particle size and a functional binder component having a second average (D50) particle size in the range of about 10 nm to about 1000 nm, wherein the ratio of the first average (D50) particle size to the second average (D50) particle size is greater than about 10:1. The catalytic articles are useful in methods and systems to purify exhaust gas streams from an engine.

A SUPPORTED COBALT-CONTAINING FISCHER-TROPSCH CATALYST, PROCESS FOR PREPARING THE SAME AND USES THEREOF

The present invention relates to a process for preparing a cobalt-containing Fischer-Tropsch synthesis catalyst with good physical properties and high cobalt loading. In one aspect, the present invention provides a process for preparing a supported cobalt-containing Fischer-Tropsch synthesis catalyst, said process comprising the steps of: (a) impregnating a support material with cobalt haydroxide nitrate, or a hydrate thereof, of formula (I) below to form an impregnated support material, [Co(OH)(NO).yHO] (I) where: 0 Подробнее

PROCESS FOR PREPARING V-Ti-P CATALYSTS FOR SYNTHESIS OF 2,3-UNSATURATED CARBOXYLIC ACIDS

The invention relates to a catalyst composition comprising a mixed oxide of vanadium, titanium, and phosphorus. The titanium component is derived from a water-soluble, redox-active organo-titanium compound. The catalyst composition is highly effective at facilitating the vapor-phase condensation of formaldehyde with acetic acid to generate acrylic acid, particularly using an industrially relevant aqueous liquid feed. Additionally, the catalyst composition is catalytically active towards the formation of acrylic acid from methylene diacetate and methacrylic acid from methylene dipropionate; both reactions are carried out with high space time yields.

Nano-sized functional binder

Described are catalytic articles comprising a substrate having a washcoat on the substrate, the washcoat containing a catalytic component having a first average (D50) particle size and a functional binder component having a second average (D50) particle size in the range of about 10 nm to about 1000 nm, wherein the ratio of the first average (D50) particle size to the second average (D50) particle size is greater than about 10:1. The catalytic articles are useful in methods and systems to purify exhaust gas streams from an engine.

CATALYST COMPOSITIONS AND PROCESS FOR DIRECT PRODUCTION OF HYDROGEN CYANIDE IN AN ACRYLONITRILE REACTOR FEED STREAM

The present invention relates to catalyst compositions containing a mixed oxide catalyst of formula (I) or formula (II) as described herein, their preparation, and their use in a process for ammoxidation of various organic compounds to their corresponding nitriles and to the selective catalytic oxidation of excess NHpresent in effluent gas streams to Nand/or NO. 1. A catalyst composition comprising a mixed oxide catalyst of formula (I) or (II):{'br': None, 'sub': 12', 'a', 'b', 'c', 'd', 'e', 'f', 'h, 'sup': 1', '2', '3', '4', '5', '6, 'MoXXXXXXO\u2003\u2003(I)'}{'br': None, 'sub': i', 'j', 'k', 'm', 'n', 'q', 'x', 'y', 'r, 'FeMoCrBiMNQXYO\u2003\u2003(II)'} [{'sup': '1', 'Xis Cr and/or W;'}, {'sup': '2', 'Xis Bi, Sb, As, P, and/or a rare earth metal;'}, {'sup': '3', 'Xis Fe, Ru, and/or Os;'}, {'sup': '4', 'Xis Ti, Zr, Hf, B, Al, Ga, In, TI, Si, Ge, Sn, and/or Pb;'}, {'sup': '5', 'Xis Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Hg, Mn, Re, V, Nb, Ta, Se, and/or Te;'}, {'sup': '6', 'Xis an alkaline earth metal and/or an alkali metal;'}, '0≤a≤5;', '0.03≤b≤25;', '0≤c≤20;', '0≤d≤200;', '0≤e≤8;', '0≤f≤3; and', 'h is the number of oxygen atoms required to satisfy the valence requirements of the component elements other than oxygen present in formula (I), where', '1≤c+d+e+f≤200;', '0≤e+f≤8; and, 'wherein in the formula (I) M is Ce and/or Sb;', 'N is La, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ti, Zr, Hf, B, Al, Ga, In, TI, Si, Ge, Sn, Pb, P, and/or As;', 'Q is W, Ru, and/or Os;', 'X is Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Hg, Mn, Re, V, Nb, Ta, Se, and/or Te;', 'Y is an alkaline earth metal and/or an alkali metal;', '0.2≤i≤100;', '0≤j≤2;', '0≤k≤2;', '0.05≤m≤10;', '0≤n≤200;', '0≤q≤8;', '0≤x≤30;', '0≤y≤8;', 'j and kj; and', 'r is the number of oxygen atoms required to satisfy the valence requirements of the component elements other than oxygen present in formula (II),, 'wherein in the formula (II) 4≤m+n+q+x+y≤200;', '0≤q+x+y≤30; and, 'wherein{'sup ...

SILICON-TITANIUM DIOXIDE-POLYPYRROLE THREE-DIMENSIONAL BIONIC COMPOSITE MATERIAL BASED ON HIERARCHICAL ASSEMBLY AND USE THEREOF

The invention relates to a three-dimensional bionic composite material based on refection elimination and double-layer P/N heterojunctions. The preparation method of the composite material comprises: (1) anisotropically etching a silicon wafer with an alkaline solution, to form compactly arranged tetragonal pyramids on the surface of the silicon wafer; (2) performing hydrophilic treatment on the silicon wafer, growing TiO2 crystal seeds on the surface of the silicon wafer, and calcining the silicon wafer in a muffle furnace; (3) putting the silicon wafer obtained in the step (2) into a reaction kettle, and growing TiO2 nano-rods on the side walls of silicon cones by a hydrothermal synthesis method; and (4) depositing PPY nano-particles on the TiO2 nano-rods. The composite material has good refection elimination performance and efficient photogenerated charge separation capability, and is applicable in fields of photo-catalysis, photoelectric conversion devices, solar cells and the like. 1. A silicon-titanium dioxide-polypyrrole three-dimensional bionic composite material based on hierarchical assembly , comprising an ordered hierarchy (Si/TiO/PPY) of monocrystalline silicon (Si) , titanium dioxide (TiO) and polypyrrole (PPY) ,wherein Si is 100-type monocrystalline silicon with a tapered microstructure surface and is a P-type semiconductor, and has compactly arranged silicon cone structure of tetragonal pyramids with a height of 4-10 μm;{'sub': 2', '2, 'TiOis TiOnano-rods of rutile phase and is an N-type semiconductor, and is quadrangular with a height of 500-4000 nm and a diameter of 40-250 nm, and orderly and vertically grown on the side walls of the silicon cones;'}{'sub': '2', 'PPY is polypyrrole nano-particles with a diameter of 10-60 nm and is a P-type semiconductor, and is uniformly grown on the surfaces of the TiOnano-rods;'}{'sub': 2', '2', '2, 'in the Si/TiO/PPY three-dimensional bionic composite material, double P/N heterojunctions are formed on interfaces ...

METHOD FOR CATALYTIC CONVERSION OF KETOACIDS AND HYDROTREAMENT TO HYDROCARBONS

Catalytic conversion of ketoacids is disclosed, including methods for increasing the molecular weight of ketoacids. An exemplary method includes providing in a reactor a feedstock having at least one ketoacid. The feedstock is then subjected to one or more C—C-coupling reaction(s) in the presence of a catalyst system having a first metal oxide and a second metal oxide. 1. A method for increasing the molecular weight of a ketoacid , the method comprising:providing in a reactor a feedstock having at least one ketoacid; andsubjecting the feedstock to one or more C—C-coupling reaction(s), wherein the C—C-coupling reaction(s) are conducted in a presence of a solid acid catalyst system having a first metal oxide and a second metal oxide, and wherein a content of the at least one ketoacid in the feedstock is at least 30 wt-%.2. The method according to claim 1 , wherein the catalyst system has a specific surface area of from 10 to 500 m/g.3. The method according to claim 1 , wherein a total amount of the acid sites of the catalyst system ranges between 30 and 500 μmol/g.4. The method according to claim 1 , wherein the at least one ketoacid is a γ-ketoacid acid.5. The method according to claim 1 , wherein the content of the at least one ketoacid in the feedstock is at least 40 wt-% claim 1 , and/or the content of water in the feedstock is less than 5.0 wt-%.6. The method according to claim 1 , wherein the first metal oxide comprises:an oxide of one of W, Be, B, Mg, Si, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Sr, Y, Zr, Nb, Mo, Cd, Sn, Sb, Bi, La, Ce, Th, and the second metal oxide comprises:an oxide of one of Zr, Ti, Si, Al, V, Cr or a combination of these, the first metal oxide not being same as the second metal oxide.7. The method according to claim 1 , wherein the first metal oxide is supported on a metal oxide carrier claim 1 , wherein the carrier is selected from the group consisting of zirconia claim 1 , titania claim 1 , silica claim 1 , vanadium oxide claim 1 ...

METHOD FOR HYDROGENATING STYRENIC BLOCK COPOLYMERS AND HYDROGENATED POLYMER

A catalyst composition, a method for hydrogenating styrenic block copolymer employing the same, and a hydrogenated polymer from the method are provided. The method for hydrogenating styrenic block copolymer includes subjecting a hydrogenation process to a styrenic block copolymer in the presence of a catalyst composition. In particular, the catalyst composition includes an oxide carrier, and a catalyst disposed on the oxide carrier, wherein the catalyst includes a platinum-and-rhenium containing phosphorus compound. 1. A method for hydrogenating styrenic block copolymer , comprising:subjecting a styrenic block copolymer to a hydrogenation process in the presence of a catalyst composition;wherein the catalyst composition comprises:an oxide carrier; anda catalyst disposed on the oxide carrier, wherein the catalyst comprises a platinum-and-rhenium containing phosphorus compound.2. The method for hydrogenating styrenic block copolymer as claimed in claim 1 , wherein the oxide carrier comprises titanium oxide claim 1 , aluminum oxide claim 1 , zirconium oxide claim 1 , silicon oxide claim 1 , or a combination thereof.3. The method for hydrogenating styrenic block copolymer as claimed in claim 1 , wherein the styrenic block copolymer is formed by polymerizing a conjugated diene monomer and a vinyl aromatic hydrocarbon monomer.4. The method for hydrogenating styrenic block copolymer as claimed in claim 3 , wherein the conjugated diene monomer comprises 1 claim 3 ,3-butadiene claim 3 , 2 claim 3 ,3-dimethyl-1 claim 3 ,3-butadiene claim 3 , 3-butyl-1 claim 3 ,3-octadiene claim 3 , isoprene claim 3 , 1-methylbutadiene claim 3 , 2-phenyl-1 claim 3 ,3-butadiene claim 3 , or a combinations thereof.5. The method for hydrogenating styrenic block copolymer as claimed in claim 3 , wherein the vinyl aromatic hydrocarbon monomer comprises styrene claim 3 , methylstyrene claim 3 , ethylstyrene claim 3 , cyclohexylstyrene claim 3 , vinyl biphenyl claim 3 , 1-vinyl-5-hexyl naphthalene ...

Synthesis of (2S,3R,4R)-4,5-Dihydroxyisoleucine and Derivatives

The invention relates to a method for the preparation of a 4,5-dihydroxyisoleucine derivative comprising the steps of asymmetric Claisen rearrangement of a Z-aminocrotyl-glycin ester and subsequent kinetic resolution of the product diastereomer mix by acylase, and subsequent Sharpless dihydroxylation of the resulting 2-amino-3-methylpent-4-enoic acid derivative. 2. The method of claim 1 , wherein said chiral ligand is selected from ephedrin claim 1 , valinol claim 1 , cinchonidine claim 1 , quinidine and cinchonine claim 1 , particularly wherein the chiral ligand is quinidine claim 1 , particularly wherein said chiral ligand is present in 2 to 3 molar equivalents in relation to compound 200.3. The method of claim 1 , wherein the Claisen rearrangement step proceeds in the presence of a strong non-nucleophilic base soluble in non-polar organic solvents claim 1 , particularly a lithium or potassium alkylamide or lithium or potassium silylalkylamide claim 1 , more particularly a base selected from LDA claim 1 , LiTMP and LiHMDS claim 1 , even more particularly in the presence of LiHMDS.4. The method of claim 1 , wherein Rand/or Ris/are CHF(CHF)CO— wherein n is 0 or 1 claim 1 , x is selected from 0 claim 1 , 1 claim 1 , 2 and 3 and y is selected from 0 claim 1 , 1 and 2 claim 1 , particularly Rand/or Ris/are selected from CFCO— claim 1 , CHFCO— claim 1 , CHFCO— claim 1 , CFCO and CFCFCO.5. The method of claim 1 , wherein the Claisen rearrangement step proceeds in the presence of LiHMDS and Ris CFCO—.6. The method of claim 1 , wherein Ris the same as Rand the enzymatic resolution step is performed directly after the Claisen rearrangement step.11. The method according to claim 7 , wherein{'sup': '1C', 'Ris a carboxylic acid moiety protecting group cleavable under acidic conditions,'}{'sup': 1', 'X', 'Y', 'Z', 'X', 'Y', 'Z, 'sub': 1', '4', '3', '6, 'particularly Ris —C(RRR) with R, Rand Rindependently selected from Cto Calkyl, Cto Ccycloalkyl or substituted or unsubstituted ...

Conversion of mixtures of c2-c8 olefins to jet fuel and/or diesel fuel in high yield from bio-based alcohols

The present disclosure provides methods and materials for oligomerization of lower olefins (e.g., C 2 -C 8 ) to transportations fuels including diesel and/or jet fuel. The oligomerization employs, in certain embodiments, tungstated zirconium catalysts. Surprisingly, the oligomerizations proceed smoothly in high yields and exhibit little to no sensitivity to the presence of significant amounts of oxygenates (e.g., water, lower alcohols such as C 2 -C 8 alcohols) in the feed stream. Accordingly, the present disclosure is uniquely suited to the production of fuels derived from bio-based alcohols, wherein olefins produced from such bio-based alcohols typically contain high levels of oxygenates.

Pre-treatment method of plating, plating system, and recording medium

A pre-treatment method of plating can suppress a catalyst layer from being peeled off from a substrate. The pre-treatment method of forming the catalyst layer on the substrate includes forming the catalyst layer 22 by adsorbing a catalyst 22 a on the substrate 2; and forming a catalyst fixing layer 27 on the catalyst layer 22.

Chromium-Catalyzed Production of Alcohols From Hydrocarbons

Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed, and these processes include the steps of forming a supported chromium catalyst comprising chromium in a hexavalent oxidation state, irradiating the hydrocarbon reactant and the supported chromium catalyst with a light beam at a wavelength in the UV-visible spectrum to reduce at least a portion of the supported chromium catalyst to form a reduced chromium catalyst, and hydrolyzing the reduced chromium catalyst to form a reaction product comprising the alcohol compound and/or the carbonyl compound. The supported chromium catalyst can be formed by heat treating a supported chromium precursor, contacting a chromium precursor with a solid support while heat treating, or heat treating a solid support and then contacting a chromium precursor with the solid support.

METHOD FOR PRODUCING 3-METHYLCYCLOALKENONE COMPOUND

The present invention relates to a method for producing a 3-methylcycloalkenone compound and a method for producing muscone. In the presence of a zirconium oxide catalyst, a diketone represented by the following general formula (1): 2. The method according to claim 1 , wherein the catalyst is zirconium oxide alone.3. The method according to claim 1 , wherein the catalyst further comprises an additional metal oxide other than zirconium oxide.4. The method according to claim 3 , wherein the additional metal oxide is alumina.5. The method according to claim 4 , wherein the content of alumina is 10% by mass or less claim 4 , based on the total weight of the catalyst.6. The method according to claim 1 , wherein the diketone represented by general formula (1) is 2 claim 1 ,15-hexadecanedione claim 1 , and the 3-methylcycloalkenone compound represented by general formula (2) generated upon the intramolecular condensation reaction is a 3-methylcyclopentadecenone compound.7. The method according to claim 1 , comprising filling the catalyst into a reactor claim 1 , and continuously feeding the diketone represented by general formula (1) to the reactor in an amount of 0.01 to 50 g/hr relative to 1 g of the catalyst filled into the reactor to effect the intramolecular condensation reaction.9. The method for producing muscone according to claim 8 , comprising filling the catalyst into a reactor claim 8 , and continuously feeding 2 claim 8 ,15-hexadecanedione to the reactor in an amount of 0.01 to 50 g/hr relative to 1 g of the catalyst filled into the reactor to effect the intramolecular condensation reaction.10. The method for producing muscone according to claim 8 , wherein the catalyst is zirconium oxide alone.11. The method for producing muscone according to claim 8 , wherein the catalyst further comprises an additional metal oxide other than zirconium oxide.12. The method for producing muscone according to claim 11 , wherein the additional metal oxide is alumina.13. The ...