ФОРМОВАННОЕ ИЗДЕЛИЕ, СОДЕРЖАЩЕЕ ЦЕОЛИТНЫЙ МАТЕРИАЛ, ИМЕЮЩИЙ ТИП КАРКАСНОЙ СТРУКТУРЫ MFI

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КАТАЛИЗАТОРЫ

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Каталитическая композиция, представленная общей формулой XVO/S, в которой XVOозначает ванадат переходного металла или смешанный ванадат переходного/редкоземельного металла, и S означает носитель, содержащий TiO. Изобретение позволяет получить катализатор на основе V с устойчивостью при температуре выше 600°C. 4 н. и 13 з.п. ф-лы, 8 ил., 20 табл.

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Изобретение относится к катализатору, способам его получения и к способу гидроочистки углеводородного сырья. Катализатор для гидроочистки углеводородного сырья, после его превращения в сульфидированную форму, содержит: по меньшей мере один компонент, содержащий металл группы VIB, выбранный из молибдена и вольфрама, по меньшей мере один компонент, содержащий металл группы VIII, выбранный из никеля и кобальта, по меньшей мере один компонент в виде серосодержащей органической добавки, выбранной из группы, состоящей из тиомолочной кислоты, меркаптоянтарной кислоты и цистеина, и компонент, представляющий собой титансодержащий носитель, дополнительно содержащий оксид алюминия. При этом количество титанового компонента находится в диапазоне 1-60% масс., выраженное в виде оксида (TiO2), в расчете на общую массу катализатора. По меньшей мере один компонент в виде серосодержащей органической добавки присутствует в количестве 1-30% масс. С. Способ получения катализатора, предназначенного для последующего ...

Способ получения рутилирующих зародышей

Изобретение может быть использовано в неорганической химии. Способ получения рутилирующих зародышей включает структурное преобразование гидратированного диоксида титана с использованием нагрева. Нагреву подвергают гидратированный диоксид титана и проводят при температуре 50-250°С. К полученному порошкообразному материалу добавляют модификатор в виде оксида цинка, оксида циркония или солей этих металлов в количестве 1-10% по отношению к массе TiOв гидратированном диоксиде титана. Затем смесь измельчают с использованием высокоскоростной барабанной мельницы в течение 1-4 часов при скорости вращения барабанов 650-750 об/мин. После этого добавляют воду до обеспечения массового отношения Т:Ж = 1:(2-3,5) и продолжают измельчение в течение 2-8 часов при скорости вращения барабанов 350-600 об/мин. Изобретение позволяет получить рутилирующие зародыши в виде устойчивой суспензии с содержанием рутильной формы в целевом продукте до 93,4%, исключить использование экологически вредных реагентов. 4 пр.

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Изобретение относится к области разработки способа получения катализатора на основе высокодисперсного диоксида титана с нанесенными наночастицами благородного металла, проявляющего активность под действием ультрафиолетового излучения в реакции фотокаталитического окисления монооксида углерода при комнатной температуре. Фотокатализатор, получаемый данным способом, преимущественно предназначен для фотокаталитической очистки воздуха от микропримесей монооксида углерода, а также от монооксида углерода, образующегося в качестве побочного продукта при фотокаталитическом окислении летучих органических соединений. Описан способ приготовления металл-нанесенного катализатора для фотокаталитического окисления монооксида углерода, содержащего диоксид титана и благородный металл. Катализатор готовят пропиткой диоксида титана, который является 100% анатазом или смесью анатаза с рутилом с содержанием анатаза не менее 50 мас.%, металлоорганическим предшественником благородного металла, не содержащим атомы ...

СПОСОБ ПОЛУЧЕНИЯ СПЛАВОВ ЩЕЛОЧНЫХ МЕТАЛЛОВ И ИХ ПРИМЕНЕНИЕ

Группа изобретений относится к металлургии. Соли щелочных металлов, выбранные из группы, состоящей из сульфатов, хлоридов, нитратов, карбонатов, формиатов, оксалатов, сульфидов, сульфитов, бромидов, йодидов, фторидов, нитридов, нитритов, фосфатов, фосфидов, фосфитов и ацетатов щелочных металлов, смешивают в воде в качестве растворителя с оксидами полуметаллов, неметаллов или металлов, выбранными из группы, состоящей из CO, CO, NO, NO, NO, NO, оксида кремния, оксида алюминия, оксида теллура, оксида германия, оксида сурьмы, оксида галлия, оксида ванадия, оксида марганца, оксида хрома, оксида титана, оксида циркония, оксида церия, оксида лантана, оксида кобальта, оксида меди, оксида железа, оксида серебра, оксида вольфрама и оксида цинка. Полученную смесь нагревают до температуры плавления наиболее тугоплавкого компонента и не ниже 400°C, при этом соли щелочных металлов присутствуют в молярном отношении 1:1 или в избытке по отношению к оксидам полуметаллов, неметаллов или металлов. Полученный ...

КАТАЛИЗАТОР ОКИСЛЕНИЯ РТУТИ И СПОСОБ ЕГО ПРИГОТОВЛЕНИЯ

Настоящее изобретение относится к катализатору окисления ртути (варианты) и способу его приготовления (варианты). Описан катализатор окисления ртути в отходящем газе до водорастворимого соединения ртути, предотвращающий улетучивание МоО, который содержит: TiOв качестве носителя; VOи МоОв качестве активных компонентов, нанесенных на носитель, и по меньшей мере один из элементов, выбранных из группы, состоящей из W, Cu, Со, Ni, Zn и их соединений, в качестве компонента, предотвращающего улетучивание МоО, нанесенного на носитель. Описан катализатор, который не содержит пика МоОв рентгенодифракционных анализах. Описан способ приготовления катализатора, включающий стадии: приготовление раствора А катализаторного материала, содержащего МоОв качестве активного компонента и компонент, предотвращающий улетучивание МоО; нанесение компонентов из раствора на подложку, содержащую TiO- носитель, сушку и прокаливание. Предложен способ приготовления катализатора, предусматривающий нанесение на носитель ...

КАТАЛИЗАТОРЫ ГИДРИРОВАНИЯ СО СВЯЗУЮЩИМИ, ИМЕЮЩИМИ НИЗКУЮ ПЛОЩАДЬ ПОВЕРХНОСТИ

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Изобретение относится к усовершенствованному способу получения ароматических аминов, которые используются для получения промежуточных продуктов для получения полимеров, пигментов, пестицидов, красителей и лекарственных средств. Способ заключается в восстановлении ароматических нитросоединений в сверхкритическом изопропиловом спирте в качестве растворителя при температуре 270-330°С и давлении Р=180-200 атм. Особенностью предлагаемого способа является проведение реакции восстановления ароматических нитросоединений в присутствии гетерогенного катализатора диоксида циркония ZrOили диоксида титана TiO. Предпочтительно процесс проводить в трубчатом реакторе проточного типа. В качестве сверхкритического растворителя можно использовать изопропиловый спирт с добавлением сверхкритического CO. Способ позволяет упростить процесс за счет исключения взрывоопасного молекулярного водорода, значительно сократить время проведения процесса за счет увеличения скорости реакции, и избежать образования продуктов ...

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Изобретение может быть использовано при получении добавок для лакокрасочных материалов. Способ получения суспензии на основе нанокомпозита диоксида титана на графеновых хлопьях включает введение в базовую жидкость нанопорошка диоксида титана, который синтезирован распылением в плазме электрического дугового разряда постоянного тока в атмосфере инертного газа композитного электрода с последующим отжигом в кислородсодержащей среде, и воздействие ультразвуковыми колебаниями. Базовая жидкость представляет собой смесь воды и этилового спирта в соотношении 9:1. Композитный электрод представляет собой графитовый стержень, в просверленную полость которого запрессована смесь порошков графита, титана и кремния. Изобретение позволяет придать покрытиям на основе получаемой суспензии высокую антивирусную активность, бактерицидность и свойства самоочищения. 2 з.п. ф-лы, 7 ил.

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Изобретение может быть использовано в неорганической химии. Каталитическая композиция содержит по меньшей мере один оксид на носителе, полученный на основе оксида циркония, оксида титана или смешанного оксида циркония и титана, нанесенный на носитель на основе оксида кремния. После обжига при 900°С в течение 4 часов оксид на носителе имеет форму частиц, нанесенных на носитель, и их размер составляет не более 5 нм, если оксид на носителе получен на основе оксида циркония, не более 10 нм, если оксид на носителе получен на основе оксида титана, и не более 8 нм, если оксид на носителе получен на основе смешанного оксида циркония и титана. После обжига при 1000°С в течение 4 часов размер частиц составляет не более 7 нм, если оксид на носителе получен на основе оксида циркония, не более 19 нм, если оксид на носителе получен на основе оксида титана, не более 10 нм, если оксид на носителе получен на основе смешанного оксида циркония и титана. Изобретение позволяет уменьшить агрегацию частиц, их ...

КОНСТРУКЦИЯ КАТАЛИЗАТОРА С ЦЕЛЬНЫМИ ТЕПЛООБМЕННЫМИ ПОВЕРХНОСТЯМИ

Изобретение относится к конструкции катализатора, имеющего цельные теплообменные поверхности. Конструкция катализатора включает металлический носитель, имеющий проходы для горючих газов. На часть внутренних поверхностей проходов нанесен каталитический материал для теплообмена поверхностей, покрытых каталитическим материалом с внутренними поверхностями, не покрытыми каталитическим материалом. Носитель катализатора дополнительно включает тонкослойное покрытие. 2 с. и 38 з.п. ф-лы, 9 ил., 2 табл.

СПОСОБ ПОЛУЧЕНИЯ НОСИТЕЛЯ ДЛЯ КАТАЛИЗАТОРОВ

Описывается способ получения носителя для катализаторов на основе альфа-окиси алюминия, включающий: а) получение смеси, содержащей окись алюминия, керамическую связку, жидкую среду и, возможно, органические выжигаемые вещества, вещества, способствующие формованию, и смазки; b) формование смеси в виде частиц (гранул) носителя; с) сушку и обжиг частиц носителя при температуре от 1200 до 1500°С с образованием пористых частиц носителя; d) пропитку пористых частиц носителя генератором двуокиси титана в жидкой среде; e) обжиг пропитанных частиц носителя при температуре, достаточной для удаления летучих и образования двуокиси титана. Технический результат - исключение уплотнения структуры носителя, что ведет за собой появление нежелательных свойств. 5 з.п. ф-лы, 6 табл.

СПОСОБ СЕЛЕКТИВНОГО ОКИСЛЕНИЯ УГЛЕВОДОВ С ИСПОЛЬЗОВАНИЕМ КАТАЛИЗАТОРОВ НА ОСНОВЕ ЗОЛОТА НА НОСИТЕЛЕ

... 1. Способ селективного окисления, по меньшей мере, одного углевода, смеси углеводов или содержащей его (их) композиции, причем водный раствор углевода, смеси или композиции подвергают превращению в присутствии катализатора на основе золота, включающего нанодисперсно распределенные частицы золота на носителе из оксида металла, и кислорода, причем альдегидную группу у С1-атома углерода углевода(ов) селективно окисляют до карбоксильной группы, или вводят альдегидную группу у С1-атома углерода и селективно окисляют до карбоксильной группы. 2. Способ по п.1, причем носителем из оксида металла катализатора на основе золота является носитель TiO2. 3. Способ по п.2, причем катализатор на основе золота, нанесенный на TiO2, содержит приблизительно 0,1-5% золота, предпочтительно приблизительно 0,5-1% золота. 4. Способ по п.1, причем носителем из оксида металла катализатора на основе золота является носитель Al2O3. 5. Способ по п.4, причем катализатор на основе золота, нанесенный на Al2O3, содержит ...

КАТАЛИЗАТОР УГЛЕКИСЛОТНОГО РИФОРМИНГА И СПОСОБ ЕГО ПОЛУЧЕНИЯ

... 1. Катализатор углекислотного риформинга, который преобразовывает исходное газообразное углеводородное сырье под действием диоксида углерода и который используют для получения синтез-газа, содержащего монооксид углерода и водород, причем катализатор углекислотного риформинга содержит ! смесь в качестве основного компонента, которая содержит карбонат, по меньшей мере, одного щелочноземельного металла, выбираемого из группы, состоящей из Ca, Sr и Ba, и каталитический металл, промотирующий реакцию разложения газообразного углеводородного исходного сырья. ! 2. Катализатор углекислотного риформинга по п.1, где каталитический металл является, по меньшей мере, одним металлом, выбираемым из группы, состоящей из Ni, Rh, Ru, Ir, Pd, Pt, Re, Co, Fe и Мо. ! 3. Катализатор углекислотного риформинга по п.1 или 2, дополнительно содержащий ATiO3 (A означает, по меньшей мере, один щелочноземельный металл, выбираемый из группы, состоящей из Ca, Sr и Ва). !4. Способ получения катализатора углекислотного риформинга ...

КОМПОЗИТЫ КАТАЛИЗАТОРОВ ОКИСЛЕНИЯ ДИЗЕЛЬНОГО ТОПЛИВА

... 1. Композит катализатора окисления для снижения выбросов отработавшего газа двигателя, работающего на обедненных смесях, содержащий:подложку носителя, которая имеет протяженность, входной конец и выходной конец, каталитический материал катализатора окисления на подложке, при этом каталитический материал катализатора окисления включает нижний слой покрытия из пористого оксида и верхний слой покрытия из пористого оксида;при этом нижний слой покрытия из пористого оксида включает подложку из тугоплавкого оксида металла, платиновый (Pt) компонент и палладиевый (Pd) компонент в массовом соотношении Pt к Pd в диапазоне, который составляет приблизительно 4:1-1:4; иверхний слой покрытия из пористого оксида включает цеолит, Pt и подложку из тугоплавкого оксида металла, верхний слой покрытия из пористого оксида в основном не содержит палладий, при этом композит катализатора окисления является эффективным для уменьшения углеводорода и монооксида углерода, и окисляет NO до NOв выхлопных газах двигателя ...

ОБРАБОТКА ХВОСТОВЫХ ГАЗОВ УСТАНОВКИ КЛАУСА С ИСПОЛЬЗОВАНИЕМ ОПТИМИЗИРОВАННОЙ ПОСЛЕДОВАТЕЛЬНОСТИ КАТАЛИЗАТОРОВ

... 1. Способ конверсии в H2S серосодержащих соединений, присутствующих в газе, содержащем H2S и серосодержащие соединения, причем данный способ включает следующие стадии: ! a) стадия А приведения в контакт упомянутого газа с газом-восстановителем в присутствии катализатора гидрирования, содержащего по меньшей мере кобальт и молибден и в качестве носителя оксид алюминия, причем сумма содержаний кобальта и молибдена в пересчете на оксиды находится в интервале от 3 до 25 мас.%, а площадь поверхности оксида алюминия составляет больше 140 м2/г; ! b) стадия В приведения в контакт по меньшей мере одной фракции газа, выходящего со стадии А, с катализатором, содержащим по меньшей мере один щелочноземельный металл, по меньшей мере одну легирующую добавку, выбранную из группы, состоящей из железа, кобальта и молибдена, и по меньшей мере одно соединение, выбранное из группы, состоящей из оксида титана и оксида циркония, причем содержание оксидов титана и/или циркония составляет больше 5% от массы катализатора ...

КАТАЛИЗАТОР ДЛЯ ПОЛИМЕРИЗАЦИИ ОЛЕФИНОВ И СПОСОБ ЕГО ПОЛУЧЕНИЯ

... 1. Способ получения твердого титанового каталитического компонента для применения в качестве прокатализатора для каталитической системы Циглера-Натта, причем указанный способ в основном включает:(a) контактирование соединения диалкилмагния, представленного R′R″Mg, с солюбилизирующим магний соединением с образованием реакционной смеси, где каждый из элементов R′ и R″ представляет собой углеводородную группу, имеющую С-Сатомов углерода, отличающийся тем, что контактирование соединения диалкилмагния с солюбилизирующим магний соединением приводит к образованию первой реакционной смеси, содержащей алкоксид магния в реакционной смеси;(b) добавление титанового соединения, представленного Ti(OR′′′)X, где X представляет собой атом галогена; R′′′ - углеводородную группу и p - целое число, меньшее или равное 4, для преобразования алкоксида магния в реакционной смеси с образованием второй реакционной смеси;(c) добавление по меньшей мере одного внутреннего донора электронов либо после этапа (a), либо ...

УСТРОЙСТВО И СПОСОБ ДЕКОДИРОВАНИЯ ДАННЫХ ДЛЯ ОБЕСПЕЧЕНИЯ ПРОЛИСТЫВАЕМОГО СЛАЙД-ШОУ, И ЗАПОМИНАЮЩИЙ ДАННЫЕ НОСИТЕЛЬ ДЛЯ НИХ

... 1. Декодирующее устройство для обеспечения слайд-шоу с возможностью пролистывания, содержащее декодер основного потока для декодирования пакетных данных основного потока; декодер суб-аудио для декодирования пакетных суб-аудиоданных; счетчик системной временной синхронизации основного потока для обеспечения последовательности системной временной синхронизации, которая управляет временем декодирования пакетных данных основного потока декодером основного потока; и счетчик суб-аудио системной временной синхронизации для обеспечения последовательности системной временной синхронизации, которая управляет временем декодирования пакетных суб-аудиоданных декодером суб-аудио. 2. Декодирующее устройство по п.1, в котором пакетные данные основного потока содержат данные изображения для воспроизведения при слайд-шоу с возможностью пролистывания. 3. Декодирующее устройство по п.2, в котором пакетные суб-аудиоданные содержат аудиоданные, прикрепленные к данным изображения. 4. Декодирующее устройство по ...

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... 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 ...

Способ получения композитного материала на основе нитрида углерода и диоксида титана, активного под действием электромагнитного излучения видимого и ультрафиолетового диапазона

Изобретение может быть использовано при получении композитного материала, пригодного для фотосорбционной очистки сточных вод и извлечения редких металлов. Способ получения композитного материала на основе нитрида углерода и диоксида титана включает термическое разложение меламина в одной реакционной зоне с диоксидом титана. Сначала проводят гомогенизацию смеси диоксида титана и меламина в дистиллированной воде, добавленной в пропорции 1:5 по отношению к сухой смеси, под действием ультразвука в течение 10 мин и сушку при 80 °C в течение 2 ч. Соотношение массы диоксида титана к меламину при этом составляет от 1:4 до 1:6. Затем проводят отжиг в закрытом тигле на воздухе при 550-600 °C в течение 4 ч со скоростью нагрева 8-10 °C/мин. Изобретение позволяет получить композитный материал на основе графитоподобного нитрида углерода и диоксида титана g-C3N4/TiO2, способный к сорбции под действием электромагнитного излучения видимого и ультрафиолетового диапазона. 3 ил., 1 табл., 3 пр.

КАТАЛИЗАТОР УГЛЕКИСЛОТНОГО РИФОРМИНГА И СПОСОБ ЕГО ПОЛУЧЕНИЯ

Изобретение относится к катализатору углекислотного риформинга, который используют при производстве синтез-газа, содержащего водород и монооксид углерода, путем углекислотного риформинга газообразного углеводородного исходного сырья, к способу производства синтез-газа при использовании катализатора углекислотного риформинга, к способу получения катализатора углекислотного риформинга и к носителю для катализатора углекислотного риформига. Описан катализатор углекислотного риформинга, который преобразовывает исходное газообразное углеводородное сырье под действием диоксида углерода, и который используют для получения синтез-газа, содержащего монооксид углерода и водород, причем катализатор углекислотного риформинга содержит смесь в качестве основного компонента, которая содержит носитель, содержащий карбонат, по меньшей мере, одного щелочноземельного металла, выбираемого из группы, состоящей из Са, Sr и Ва, и каталитический металл, промотирующий реакцию разложения газообразного углеводородного ...

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, ...

Способ получения интеркалированной поли-N-винилкапролактамом наноразмерной η-модификации оксида титана(IV)

Изобретение может быть использовано в химической технологии. Для приготовления порошкообразных образцов η-фазы состава TiO×HO, где n=0,9-2,0, с интеркаляцией поли-N-винилкапролактама (ПВК) в структуру η-фазы осуществляют следующие стадии. Смешивают водный раствор ПВК, имеющий концентрацию 1-10 мас. %, с сульфатом титанила TiOSO×HO или с сернокислым сульфатом титанила TiOSO×HSO×HO при массовом соотношении ПКВ:Tiот 1:9,2 до 1:9,4. Нагревают смесь от комнатной температуры до температуры 90±5°С в течение 50-70 мин при постоянном перемешивании. Полученный порошок отделяют центрифугированием и сушат в сушильном шкафу. Изобретение позволяет получить новую интеркалированную поли-N-винилкапролактамом η-модификацию диоксида титана, обладающую антимикробной активностью. 1 з.п. ф-лы, 4 ил., 5 табл., 5 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 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 нахадится во фторированной и/или сульфатированной форме и содержит, мас.%: оксид стронция или оксид титана, или оксид олова, или их смесь 1-50, мелкодисперсный алюмосодержащий оксидный носитель, включающий фосфаты или арсенаты алюминия - остальное, до 100. Достигаемый технический результат заключается в повышении активности катализатора за счет его большей удельной поверхности и наличия изомеризующего компонента. При этом высокое значение удельной поверхности катализатора приводит к повышенному содержанию бензиновой составляющей, а изомеризующая функция используемого катализатора в условиях реакции гидротермального сжижения приводит к повышению октанового числа бензиновой фракции, содержащейся в полученной бионефти. Кроме того, использование описываемого катализатора приводит к улучшению низкотемпературных ...

ЭЛЕМЕНТ ДЛЯ ПОДАВЛЕНИЯ ОБРАЗОВАНИЯ СЕРОВОДОРОДА И КАТАЛИЗАТОР ДЛЯ ОЧИСТКИ ВЫХЛОПНЫХ ГАЗОВ

... 1. Элемент, подавляющий образование сероводорода, содержащий: ! часть, адсорбирующую серу, содержащую оксид, включающий в себя, по меньшей мере, оксид церия, и расположенную на верхней стороне относительно течения потока выхлопного газа; и ! часть, высвобождающую серу, обладающую поверхностной кислотностью большей, чем поверхностная кислотность части, адсорбирующей серу, и расположенную на нижней стороне относительно течения потока выхлопного газа. ! 2. Элемент, подавляющий образование сероводорода по п.1, в котором часть, высвобождающая серу, содержит оксид титана. ! 3. Элемент, подавляющий образование сероводорода по п.1, в котором часть, адсорбирующая серу, покрыта, по меньшей мере, одним металлом, выбранным из группы, состоящей из щелочноземельных металлов и редкоземельных элементов. ! 4. Элемент, подавляющий образование сероводорода по п.3, в котором, по меньшей мере, один упомянутый металл, выбранный из группы, состоящей из щелочноземельных металлов и редкоземельных элементов, нанесен ...

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 ...

СПОСОБ НИЗКОТЕМПЕРАТУРНОЙ ОЧИСТКИ ГАЗА ОЗОНОМ И КАТАЛИТИЧЕСКИЙ РУКАВНЫЙ ФИЛЬТР ДЛЯ ИСПОЛЬЗОВАНИЯ В СПОСОБЕ

СВЕРХТОНКАЯ КОМПЛЕКСНАЯ НИТЬ, СОДЕРЖАЩАЯ ДЕЗОДОРИРУЮЩЕЕ СРЕДСТВО, И СПОСОБ ЕЕ ПОЛУЧЕНИЯ

... 1. Сверхтонкая комплексная нить, содержащая дезодорирующее средство, отличающаяся тем, что ! a) комплексная нить содержит сверхтонкие элементарные волокна, имеющие средний диаметр от 200 до 2000 нм, и ! b) комплексная нить содержит по меньшей мере одно дезодорирующее средство, имеющее диаметр вторичных частиц, равный или превышающий диаметр сверхтонких элементарных волокон, при этом от 5 до 25 частиц дезодорирующего средства на каждые 25 мкм2 не полностью покрыты полимером волокна и частично выходят на поверхность комплексной нити. ! 2. Сверхтонкая комплексная нить, содержащая дезодорирующее средство, по п.1, в которой дезодорирующее средство представляет собой фотокатализатор. ! 3. Сверхтонкая комплексная нить, содержащая дезодорирующее средство, по п.1, в которой дезодорирующее функциональное средство представляет собой адсорбент, дезодорант, бактерицидную добавку или бактериостатическое средство. ! 4. Сверхтонкая комплексная нить, содержащая дезодорирующее средство, по любому из пп.1 ...

КАТАЛИЗАТОР СЕЛЕКТИВНОГО КАТАЛИТИЧЕСКОГО ВОССТАНОВЛЕНИЯ

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 ...

СПОСОБ И КАТАЛИЗАТОР СГОРАНИЯ ДЛЯ ОЧИСТКИ ОТХОДЯЩЕГО ГАЗА, СОДЕРЖАЩЕГО ДИОКСИД УГЛЕРОДА И СПОСОБ ПОЛУЧЕНИЯ ПРИРОДНОГО ГАЗА

... 1. Способ очистки отходящего газа, содержащего диоксид углерода, в котором летучие органические соединения и сернистые соединения в газе, имеющем диоксид углерода в качестве его основного компонента, окислительно разлагают, включающий: ! введение отходящего газа, содержащего диоксид углерода, содержащего, по меньшей мере, летучее органическое соединение и сернистые соединения в количестве не менее чем 50 об.ч/млн и не более чем 10000 об.ч/млн, и имеющего диоксид углерода в качестве основного компонента, в камеру каталитического сгорания; и ! окислительное разложение данного летучего органического соединения и сернистого соединения, с использованием катализатора сгорания в камере каталитического сгорания, ! где катализатор сгорания содержит, по меньшей мере, один оксид металла, выбранный из группы, состоящей из оксида циркония, оксида титана и оксида кремния, и, по меньшей мере, один благородный металл, выбранный из группы, состоящей из платины, палладия и иридия, и ! концентрация сернистых ...

МОДУЛИ И СПОСОБЫ ПОДГОТОВКИ ТОПЛИВА

... 1. Модуль подготовки топлива для обработки сгораемого топлива перед сжиганием, включающий:корпус, имеющий впускной и выпускной концы и определяющий сквозной канал для топлива между ними; ивставной блок подготовки топлива, расположенный в сквозном канале, таким образом, что топливо, протекающее в канале между впускным и выпускным концами корпуса, вступает в контакт с блоком подготовки топлива, причемвставной блок подготовки топлива включает:(i) массу каталитических металлических элементов, которые составляет каталитический металл;(ii) массу твердого полимерного каталитического материала в форме пластинок, диспергированных в массе каталитических металлических материалов, причем пластинки из твердого полимерного каталитического материала составляют полимерный связующий материал и каталитическую смесь твердых частиц цеолита и твердых частиц редкоземельного металла или оксида металла, смешанных в твердом полимерном связующем материале.2. Модуль подготовки топлива по п.1, дополнительно включающий ...

КАТАЛИЗАТОР ГИДРООЧИСТКИ С ТИТАНСОДЕРЖАЩИМ НОСИТЕЛЕМ И СЕРОСОДЕРЖАЩЕЙ ОРГАНИЧЕСКОЙ ДОБАВКОЙ

ПОРОШКООБРАЗНЫЙ ОКСИД ТИТАНА, СПОСОБЫ ЕГО ПОЛУЧЕНИЯ И ЕГО ПРИМЕНЕНИЕ

КАТАЛИТИЧЕСКАЯ СИСТЕМА СЕЛЕКТИВНОГО КАТАЛИТИЧЕСКОГО ВОССТАНОВЛЕНИЯ

КАТАЛИТИЧЕСКИЕ СИСТЕМЫ ДЛЯ СЕЛЕКТИВНОГО КАТАЛИТИЧЕСКОГО ВОССТАНОВЛЕНИЯ

СПОСОБ РАЗЛОЖЕНИЯ/УДАЛЕНИЯ С ИСПОЛЬЗОВАНИЕМ ФОТОКАТАЛИТИЧЕСКОГО МАТЕРИАЛА

... 1. Способ разложения с использованием фотокаталитического материала, включающий осуществление разложения в присутствии фотокаталитического материала и разбавленного раствора перекиси водорода.2. Способ разложения с использованием фотокаталитического материала по п.1,где фотокаталитический материал представляет собой фотокаталитический материал, имеющий пленку кристаллического оксида титана, полученную посредством образования нитрида титана на поверхности металлического титана или титанового сплава, и анодирования поверхности металлического титана или титанового сплава, на которой образуется нитрид титана.3. Способ разложения с использованием фотокаталитического материала по п.2, где кристаллический оксид титана представляет собой оксид титана типа анатаза.4. Способ разложения с использованием фотокаталитического материала по пп.1, 2 или 3, где разбавленный раствор перекиси водорода имеет концентрацию перекиси водорода 1% масс или меньше.5. Способ удаления газообразного опасного вещества ...

НАНОЧАСТИЦЫ ВОЛОКОН ОКСИДА КРЕМНИЯ С РАЗВИТОЙ ПОВЕРХНОСТЬЮ

... 1. Наночастица из множества волокон, в которой каждое волокно контактирует с одним другим волокном и каждое волокно имеет длину примерно 1-5000 нм и толщину примерно 1-50 нм.2. Наночастица по п.1, которая состоит из оксида кремния.3. Наночастица по п.1, в которой каждое волокно имеет длину примерно 1-250 нм.4. Наночастица по п.1, в которой каждое волокно имеет толщину примерно 1-25 нм.5. Наночастица по п.1, в которой каждое волокно имеет толщину примерно 1-10 нм.6. Наночастица по п.1, в которой каждое волокно имеет длину примерно 1-250 нм и толщину примерно 1-10 нм.7. Наночастица по п.1, в которой волокна имеют разную толщину и разную длину.8. Наночастица по п.1, в которой волокна имеют равномерную толщину и равномерную длину.9. Наночастица по п.1, которая состоит примерно из 10-10волокон.10. Наночастица по п.9, которая состоит по меньшей мере примерно из 10волокон.11. Наночастица по п.10, которая состоит по меньшей мере примерно из 10волокон.12. Наночастица по п.1, которую определяют как ...

ПОКРЫТЫЙ ПЛОСКИЙ ПОЛИМЕРНЫЙ МАТЕРИАЛ С ОГРАНИЧЕННОЙ СКЛОННОСТЬЮ К ОБРАСТАНИЮ ВОДОРОСЛЯМИ, СПОСОБ ЕГО ПОТОЧНОГО ПРОИЗВОДСТВА И ЕГО ПРИМЕНЕНИЕ

... 1. Плоский полимерный материал с ограниченной склонностью к обрастанию водорослями, содержащий:a) в качестве основы термопластичную полимерную подложку иb) находящееся на основе фотокаталитически активное покрытие, включающее:- водораспределяющий слой, которым являетсяслой b1+2) золя и промотора адгезии, содержащий промотор адгезии и коллоидный золь,илислой b2) коллоидного золя, упорядоченный на слое b1) промотора адгезии, нанесенном на основу а),и- упорядоченный на водораспределяющем слое b1+2) или b2) фотокаталитически активный слой b3), который может быть получен путем нанесения и сушки смеси, содержащей, в пересчете на содержание в ней твердого вещества,b31) от 1 до 25% масс. диоксида титана иb32) от 75 до 99% масс. диоксида кремния и/или нерастворимого в воде оксида металла или анионно модифицированного диоксида кремния или оксида металла;причем диоксид титана обладает формой частиц со средним размером первичных частиц менее 10 нм.2. Плоский полимерный материал по п.1, отличающийся ...

МЕТОДЫ ПОВЫШЕНИЯ ЦВЕТОСТОЙКОСТИ ПОЛИЭТИЛЕНОВЫХ СМОЛ

ЗАМКНУТОЕ ПРОСТРАНСТВО, СОДЕРЖАЩЕЕ ФОТОКАТАЛИТИЧЕСКОЕ ПОКРЫТИЕ И СИСТЕМУ ОСВЕЩЕНИЯ

КАТАЛИЗАТОР И СПОСОБ ВОССТАНОВЛЕНИЯ ОКСИДА АЗОТА В ОТХОДЯЩЕМ ГАЗЕ

СПОСОБ ПОЛУЧЕНИЯ КАТАЛИЗАТОРА НА ОСНОВЕ ТИТАНОВОГО ЦЕОЛИТА

... 1. Способ получения катализатора для применения в реакции конверсии углеводородов, где указанный катализатор содержит титановый цеолит и углеродистый материал, где катализатор содержит указанный углеродистой материал в количестве от 0,01 до 0,5 мас.% от общей массы титанового цеолита, содержащегося в катализаторе, где способ содержит(i) получение катализатора, содержащего титановый цеолит;(ii) осаждение углеродистого материала на катализаторе в соответствии с (i) в количестве от 0,01 до 0,5 мас.% от общей массы титанового цеолита, содержащегося в катализаторе, путем контакта указанного катализатора, перед применением катализатора в указанной реакции конверсии углеводородов, с жидкостью, содержащей по меньшей мере один углеводород в атмосфере инертного газа, при повышенной температуре, с получением катализатора, содержащего углеродистый материал,где на стадии (ii) катализатор не контактирует с газом, содержащим кислород, и где после стадии (ii) катализатор не подвергается дополнительной ...

КОМПОЗИЦИЯ НА ОСНОВЕ ОКСИДА ЦИРКОНИЯ, ОКСИДА ТИТАНА ИЛИ СМЕШАННОГО ОКСИДА ЦИРКОНИЯ И ТИТАНА, НАНЕСЕННАЯ НА НОСИТЕЛЬ ИЗ ОКСИДА КРЕМНИЯ, СПОСОБЫ ЕЕ ПОЛУЧЕНИЯ И ЕЕ ПРИМЕНЕНИЕ В КАЧЕСТВЕ КАТАЛИЗАТОРА

... 1. Композиция, содержащая по меньшей мере один оксид на носителе, состоящий из оксида циркония, оксида титана или смешанного оксида циркония и титана, нанесенный на носитель на основе оксида кремния, отличающаяся тем, что после обжига при 900°С в течение 4 ч оксид на носителе имеет форму частиц, нанесенных на упомянутый носитель, размер которых составляет:не более 5 нм, если оксид на носителе получен на основе оксида циркония;не более 10 нм, если оксид на носителе получен на основе оксида титана;не более 8 нм, если оксид на носителе получен на основе смешанного оксида циркония и титана.2. Композиция, содержащая по меньшей мере один оксид на носителе, состоящий из оксида циркония, оксида титана или смешанного оксида циркония и титана, нанесенный на носитель на основе оксида кремния, отличающаяся тем, что после обжига при 1000°С в течение 4 ч оксид на носителе имеет форму частиц, нанесенных на упомянутый носитель, размер которых составляет:не более 7 нм, если оксид на носителе получен на ...

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

ПОВЕРХНОСТНО-МОДИФИЦИРОВАННЫЙ КАРБОНАТ КАЛЬЦИЯ В КАЧЕСТВЕ НОСИТЕЛЯ ДЛЯ КАТАЛИЗАТОРОВ НА ОСНОВЕ ПЕРЕХОДНЫХ МЕТАЛЛОВ

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

... 1. Пористый оксид алюминия с высокой удельной поверхностью и с высоким объемом пор, содержащий:оксид алюминия,необязательно, оксид кремния и алюмосиликаты, инеобязательно, одну или более легирующих добавок,причем указанный оксид алюминия имеет удельную площадь поверхности от примерно 100 до примерно 500 м2/г и общий объем пор после обжига при 900°C в течение 2 часов равный или больший 1,2 см3/г, причем 15% или менее от общего объема пор составляют поры, имеющие диаметр менее 10 нанометров.2. Оксид алюминия по п.1, отличающийся тем, что указанный оксид алюминия имеет после обжига при 900°C в течение 2 часов общий объем пор, больший или равный 1,25 см3/г3. Оксид алюминия по п.1, отличающийся тем, что, после обжига при 900°C в течение 2 часов, 10% или менее от общего объема пор в указанном оксиде алюминия составляют поры, имеющие диаметр менее 10 нанометров.4. Оксид алюминия по п.1, отличающийся тем, что, после обжига при 900°C в течение 2 часов, 50% или менее от общего объема пор в указанном ...

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, ...

СПОСОБ ПОЛУЧЕНИЯ ОКСАЛАТА ГАЗОФАЗНЫМ СПОСОБОМ С УЧАСТИЕМ ОКСИДА УГЛЕРОДА

... 1. Способ получения оксалата газофазным методом с участием СО, включающий следующие стадии:c) газовый поток V, содержащий NO и метанол и кислород, подают в супергравитационный реактор II с вращающимся слоем и подвергают реакции окислительной этерификации с образованием потока VI, содержащего метилнитрит; поток VII метилнитрита, полученный при разделении указанного потока VI, вместе с газообразным потоком II СО дают в реактор для сочетания II где контактирует с катализатором II с получением потока VIII диметилоксалата и потока газовой фазы IX, содержащего NO, а полученный поток VIII диметилоксалата отделяют с получением диметилоксалата I;d) поток газа IX, содержащий NO, необязательно возвращают на стадию с) для смешения с потоком газовой фазы V, содержащим NO, для возвращения в цикл;при этом ротор супергравитационного реактора II с вращающимся слоем соединен с пористым слоем наполнителя; катализатор представляет собой катализатор, содержащий палладий, Pd, в количестве 0,01~1% в расчете на ...

КАТАЛИЗАТОР ПРЕВРАЩЕНИЯ СИНТЕЗ-ГАЗА В СПИРТЫ

СЕЛЕКТИВНОЕ КАТАЛИТИЧЕСКОЕ ВОССТАНОВЛЕНИЕ (SCR) С ИСПОЛЬЗОВАНИЕМ ТУРБОНАГНЕТАТЕЛЯ И СИСТЕМЫ С СОЕДИНЕННЫМИ ВПЛОТНУЮ ASC/DOC

ВОЗДУШНЫЙ ФИЛЬТР ДЛЯ ФИЛЬТРАЦИИ ЖИРОВЫХ ВЕЩЕСТВ

НОСИТЕЛИ ИЗ ДИОКСИДА ТИТАНА ДЛЯ КАТАЛИЗАТОРОВ ПРОЦЕССА ФИШЕРА-ТРОПША

... 1. Формованный носитель катализатора, содержащий кристаллический диоксид титана, в котором, по меньшей мере, 50 мас.% кристаллического диоксида титана присутствует в виде брукита, и в котором носитель включает в себя между 40 и 100 мас.% кристаллического диоксида титана, в расчете на суммарную массу носителя, предпочтительно между 70 и 100 мас.%, причем формованный носитель катализатора не представляет собой покрытый носитель катализатора. 2. Носитель по п.1, в котором, по меньшей мере, 60 мас.% кристаллического диоксида титана присутствуют в виде брукита. 3. Носитель по пп.1 и 2, в котором кристаллический диоксид титана имеет содержание брукита не более 90 мас.%, предпочтительно не более 80 мас.%. 4. Носитель по любому пп.1 и 2, в котором кристаллический диоксид титана присутствует в виде рутила в диапазоне от 0 до 50 мас.%, предпочтительно в диапазоне от 5 до 30 мас.%, и в котором кристаллический диоксид титана присутствует в виде анатаза в диапазоне от 0 до 10 мас.%, предпочтительно ...

ЭКСТРУДАТЫ ДИОКСИДА ЦИРКОНИЯ

... 1. Способ получения прокаленного экструдата диоксида циркония, содержащего цирконий и один или более других элементов, выбранных из групп IB, IIB, IIIB, IVB, VB, VIB, VIIB и VIII периодической системы элементов или лантанидов и актинидов, включающий следующие стадии: а. получение формующейся пасты путем смешения и пластицирования мелкодисперсного диоксида циркония и источника одного или более других элементов, выбранных из групп IB, IIB, IIIB, IVB, VB, VIB, VIIB и VIII периодической системы элементов или лантанидов и актинидов, с растворителем с получением смеси, имеющей содержание твердых веществ от 50 до 85 мас.%; b. экструдирования формующейся пасты с образованием экструдата диоксида циркония, содержащего цирконий и один или более других элементов, выбранных из групп IB, IIB, IIIB, IVB, VB, VIB, VIIB и VIII периодической системы элементов или лантанидов и актинидов; и с. сушки и прокаливания экструдата диоксида циркония, образованного на стадии b, отличающийся тем, что мелкодисперсный ...

Способ получения антрахинона

Sphärischer Ziegler-Katalysator zur Olefinpolymerisation, seine Herstellung und Verwendung

HETEROGENEN KATALYSATOREN

Process and plant for treating exhausted DeNOx catalyst plates

Exhausted catalyst plates (4) contain, in part, valuable materials which at the same time cannot be disposed of entirely without problems. For this reason it is desirable to reprocess the exhausted catalyst plates to such an extent that the lowest possible amounts must be disposed of and the valuable raw materials can as far as possible be supplied for re-use. In this case it has proved to be difficult to detach the catalytically active substances from the support metal sheet. By immersing the plate catalysts in a solution which dissolves the layer on which the catalytically active substances are applied, it is possible to detach the catalytically active substances from the support metal sheet (50) and then to filter them off from the solution. Both the bare support metal sheets and the residue (36) filtered off from the solution can be supplied for re-use after a further treatment stage (40). The process and the plant are especially suitable for reprocessing exhausted DeNOx catalyst plates ...

Katalysator zur Entfernung von NOx der anorganische Fasern enthält

KATALYSATOREN UND IHR GEBRAUCH ZUR ENTFERNUNG VON STICKOXIDEN IN ABGASEN.

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 ...

Manufacture of photocatalytic active quartz sand grain for purification of pollutants e.g. nitrogen oxide, involves coating photocatalytic active material on surface of support material, and drying

A photocatalytic active material is coated on surface of a support material, and dried to obtain photocatalytic active quartz sand grain.

Granulate auf der Basis von Titandioxid-Partikeln mit hoher mechanischer Stabilität

Die Erfindung betrifft Granulate auf der Basis von aggregierten Titandioxid-Partikeln mit einem mittleren Korndurchmesser von 5100 µm und einer spezifischen Oberfläche nach BET von 10120 m2/g, mit einer Stampfdichte von 13501800 g/l, einem Porenvolumen von 0,100,50 cm2/g und einem mittleren Porendurchmesser von 545 nm. Ein weiterer Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Granulaten auf der Basis von Titandioxid bei dem man aggregierte Titandioxid-Partikel mit einem mittleren Aggregatdurchmesser von 100 nm bis 10 µm zunächst mit Wasser versetzt, dieses Gemisch auf einen pH-Wert von 17 bringt und durch Scherung zu einer wässrigen Vordispersion mit einem Feststoffgehalt von 3070 Gew.-% verarbeitet, diese Vordispersion anschließend einem Hochenergievermahlungsschritt unterzieht, die dadurch entstandene Dispersion anschließend sprühtrocknet und das erhaltene Produkt für 18 h bei 400800 °C thermisch nachbehandelt.

VERFAHREN ZUR HERSTELLUNG VON MALEINSAEUREANHYDRID AUS 4 KOHLENSTOFFATOME ENTHALTENDEN KOHLENWASSERSTOFFEN UNTER VERWENDUNG EINES TITAN, PHOSPHOR UND SAUERSTOFF ENTHALTENDEN KATALYSATORS

Chemisch beständiger, oxidischer Elektrokatalysator für die Sauerstoffentwicklung während der alkalischen Wasserelektrolyse basierend auf BaCoO3-delta, Verfahren zu seiner Herstellung und ihn umfassende Anode sowie katalytisch aktives und chemisch stabiles Reaktionsprodukt davon

Offenbart wird ein zweiphasiges elektrisch leitfähiges Mischoxid auf Perovskitbasis der Struktur ABOmit A = Ba, und B = Co, umfassend zusätzlich 5-45 at%, bevorzugt 15 bis 50 at%, besonders bevorzugt 25 at% CoO(at % Co bezogen auf Gesamtzahl der Co-Atome im Perovskit ABOund 0,5 bis 3 at%, bevorzugt 1 bis 2,5 at%, besonders bevorzugt 2 at% (wobei die at% bezogen sind auf die Gesamtzahl der B-Kationen im Perovskit ABO) Ti als Dotierstoff. Bevorzugt hat das Mischoxid die stöchiometrische Formel BaCoTiO:CoOmit x=0,005 bis 0,03, bevorzugt x = 0,01 bis 0,025, besonders bevorzugt x = 0,02, wobei δ die Leerstellen in der Perovskit-Struktur definiert und im Bereich von im Bereich von ca. ca. 0,1 bis 0,8, bevorzugt 0,3 bis 0,7, besonders bevorzugt ca. 0,5 bis 0,6 liegt. Offenbart werden ferner ein Katalysator und eine Anode, die das Mischoxid umfassen, die Verwendung des Katalysators bei der alkalischen Wasserelektrolyse oder in Metall-Luft-Batterien, die Verwendung des Mischoxids zur Herstellung ...

Verwendung eines säurebeständigen blattformigen Katalysators zur Dioxinzersetzung

Vorrichtung und Verfahren für den fotokatalytischen Abbau von flüchtigen organischen Verbindungen (VOC) und/oder Stickoxiden in Kraftfahrzeugen

Fotokatalytische Vorrichtungen (1) gemäß Figur 1 für den Abbau von flüchtigen organischen Verbindungen und/oder Stickoxiden, jeweils umfassend einen Katalysator (2) in direktem Kontakt mit einem kontaminierten Luftstrom (5), der Kontaminanten (5.1) enthält, wobei der Katalysator (2) auf einem UV-durchlässigen Träger (3) angebracht ist und durch den UV-durchlässigen Träger (3) hindurch mit der UV-Strahlung (h·v) einer dahinter angeordneten UV-Lichtquelle (4) bestrahlbar ist; Verfahren zur fotokatalytischen Dekontaminierung von Kontaminanten (5.1) enthaltenden kontaminierten Luftströmen (5), bei man(i) die kontaminierten Luftströme (5) mit den Kontaminanten (5.1) in direktem Kontakt mit einem Katalysator (2) bringt,(ii) die den kontaminierten Luftströmen (5) abgewandte Seite des Katalysators (2) durch einen UV-durchlässigen Träger (2) mit der UV-Strahlung (h.v) einer UV-Lichtquelle (4) bestrahlt, wodurch(iii) die Kontaminanten (5.1) zu Abbauprodukten (6) zersetzt werden, ohne dass Ozon, Hyperoxidanionen ...

Wabenkatalysator, Verfahren zur Oxidation von Kohlenmonoxid und organischen Luftschadstoffen mit dem Wabenkatalysator sowie Verwendung des Wabenkatalysators

Die Erfindung betrifft einen Wabenkatalysator zur Oxidation von CO und organischen Luftschadstoffen in einem Abgasstrom, wobei der Wabenkatalysator aus einem Material gebildet ist, das Oxide des Wolframs und Titans enthält, die mit einem Edelmetall dotiert sind und wobei der Wabenkatalysator eine Wabendichte unterhalb von 20 cpsi aufweist.Ein derartiger Wabenkatalysator ist besonders zur Oxidation von CO und organischen Luftschadstoffen unter hohen Staubbelastungen geeignet.

Ein auf einem metalloxid der Gruppe IVB basierende Katalysatorträger, seine Herstellung und seine Verwendungen

HOCHAKTIVER PHOTOKATALYSATOR

Verfahren zur Ruthenium-katalysierten Oxidation von Alkoholen mit Hypochlorit

Die vorliegende Erfindung betrifft ein Verfahren zur Oxidation von Alkoholen zu Aldehyden und Ketonen in Gegenwart heterogener, anorganisch geträgerter Ruthenium-Katalysatoren mit wässriger Alkali- oder Erdalkalihypochlorit-Lösung als Oxidationsmittel.

Compositions containing gold particles on alkaline earth titanate particle, prepared e.g. by precipitation or vapor deposition, are useful as catalyst for selective partial oxidation of hydrocarbon, e.g. of propene to propene oxide

Compositions containing gold particles on an alkaline earth titanate particle are claimed. An Independent claim is also included for the preparation of the composition by applying gold to the catalyst by deposition-precipitation, impregnation in solution, incipient-wetness, a colloid process, sputtering or chemical or physical vapor deposition.

Ammonia slip catalyst with low N2O formation

A catalyst comprising a combination of platinum on a support (preferably with low ammonia storage) and a first SCR catalyst. The support can be, such as containing a silica or zeolite. The first SCR catalyst can be Cu-SCR or Fe-SCR, consisting of either Cu or Fe respectively on a molecular sieve such as an aluminosilicate, aluminophosphate or silico-aluminophosphate. The catalyst may also contain a second SCR catalyst located adjacent to a blend of the first SCR catalyst and platinum on the support. The second SCR catalyst may also contain a base metal promoter such as niobium. The catalyst may also further comprise a third SCR catalyst, possibly being a Cu-SCR, Fe-SCR, vanadium based catalyst, promoted Ce-Zr or MnO2. The catalyst can take the form of having a bi-layer with a top layer of the first SCR and bottom layer of Pt of the support, where the bottom layer is positioned on a substrate, or a third SCR between the bottom layer and substrate. Further aspects relate to an article comprising ...

Catalysts and methods of making and using catalysts

Water-gas shift catalyst

CATALXST CARRIER

... 1426365 Catalyst support of titania BRITISH STEEL CORP (CHEMICALS) Ltd 4 June 1974 [4 June 1973] 26483/73 Heading ON A hard attrition resistant catalyst support of titania, particularly suitable as a base for an ortho-xylene oxidation catalyst, is made by mixing a titanium chelate with untreated TiO 2 powder and a solvent which will induce gellation, allowing the mixture to gel and then drying and calcining the resultant product. The titanium chelate may be diethanolamine titanate, triethanolamine titanate, titanium lactate or chelates based on isopropyl titanate and mixed amino alcohols. The solvent is suitably water or aqueous ammonia. In a preferred embodiment TiO 2 is powdered, diethanolamine titanate is mixed with water or ammonia solution, powdered TiO 2 is slowly added to the solution, the mixture is allowed to gel and then to dry and finally the dry gel is calcined at about 800‹ C. for at least two hours.

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

Catalysed filter

A wall-flow filter monolith substrate having a porosity of at least 40% formed from a selective catalytic reduction (SCR) catalyst of extruded type.

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.

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.

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.

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.

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.

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.

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 ...

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.

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 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.

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.

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.

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 ...

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.

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 ...

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.

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 ...

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.

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.

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.

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.

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 ...

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 THE SYNTHESIS OF SUPPORTED GOLD (AU) NANOPARTICLES FOR EPOXIDATION REACTIONS

Processes for preparing supported gold nanoparticle catalysts are provided. In an exemplary embodiment, the process includes adding a solution of a phosphorus compound to a solution of chloro (dimethyl sulfide) gold (I) to obtain a solution of chloro (phosphorus compound) gold (I) complex, adding the solution of chloro (phosphorus compound) gold (I) complex to a solution of silver nitrate to obtain a solution of nitro (phosphorus compound) gold (I) complex, applying the solution of nitro (phosphorus compound) gold (I) complex to a metal hydroxide support, drying the metal hydroxide support; and calcining the dried metal hydroxide support to form the supported gold nanoparticle catalyst. Supported gold nanoparticle catalysts prepared by the process and processes for oxidizing ethylene to ethylene oxide in the presence of the supported gold nanoparticle catalysts are also provided. 1. A process for preparing a supported gold nanoparticle catalyst , the process comprising: [{'sub': 1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12, 'wherein the phosphorus compound is selected from the group consisting of a phosphine having a formula of PRRR, a phosphinite having a formula of P(OR)RR, a phosphonite having a formula of P(OR)(OR)R, a phosphite having a formula of P(OR)(OR)(OR), or a combination comprising at least one of the foregoing; and'}, {'sub': 1', '12, 'wherein Rto Rare each independently an alkyl, substituted alkyl, aryl, substituted aryl, aralkyl, substituted aralkyl, or a combination comprising at least one of the foregoing;'}], 'adding a solution of a phosphorus compound to a solution of chloro (dimethyl sulfide) gold (I) to obtain a solution of chloro (phosphorus compound) gold (I) complex,'}adding the solution of chloro (phosphorus compound) gold (I) complex to a solution of silver nitrate to obtain a solution of nitro (phosphorus compound) gold (I) complex;applying the solution of nitro (phosphorus compound) gold (I) complex to a metal hydroxide ...

Process for preparing dialkyl 1,4-cyclohexanedicarboxylates

A process prepares dialkyl 1,4-cyclohexanedicarboxylates by ring hydrogenation of the corresponding dialkyl terephthalate having a CO value of less than 0.3 mg KOH/g. The dialkyl 1,4-cyclohexanedicarboxylates thus produced can be used as plasticizers or as a component of a plasticizer composition for plastics, in particular PVC. 1. A process for preparing dialkyl 1 ,4-cyclohexanedicarboxylate in which the two alkyl groups both have at least 2 carbon atoms , the process comprising:carrying out a ring hydrogenation of a dialkyl terephthalate in which the two alkyl groups both have at least 2 carbon atoms, in the presence of a heterogeneous hydrogenation catalyst, with a hydrogen-containing gas, to form the dialkyl 1,4-cyclohexanedicarboxylate,wherein the dialkyl terephthalate in the ring hydrogenation has a CO value of less than 0.3 mg KOH/g.2. The process according to claim 1 , wherein each of the two alkyl groups of the dialkyl 1 claim 1 ,4-cyclohexanedicarboxylate have 3 to 10 carbon atoms.3. The process according to claim 1 , wherein the dialkyl terephthalate in the ring hydrogenation is prepared by transesterification of dimethyl terephthalate with an alcohol having at least 2 carbon atoms claim 1 , or by esterification of terephthalic acid with an alcohol having at least 2 carbon atoms.4. The process according to claim 3 , wherein the alcohol in the transesterification or in the esterification is an alcohol having 3 to 10 carbon atoms.5. The process according to claim 2 , wherein the dialkyl 1 claim 2 ,4-cyclohexanedicarboxylate is diisononyl 1 claim 2 ,4-cyclohexanedicarboxylate or di-2-ethylhexyl 1 claim 2 ,4-cyclohexanedicarboxylate.6. The process according to claim 1 , wherein the heterogeneous hydrogenation catalyst in the ring hydrogenation comprises a transition metal on a support material.7. The process according to claim 6 , wherein the transition metal is a metal of group 8 of the periodic table of the elements.8. The process according to claim 6 , ...

PROCESS FOR SPONTANEOUS CATALYTIC DECOMPOSITION OF HYDROGEN PEROXIDE

Process for spontaneous catalytic decomposition of hydrogen peroxide through the use of a fixed-bed catalyst, characterised in that the fixed-bed catalyst was produced through the use of at least one exothermic-decomposing platinum precursor. 1. Process for spontaneous catalytic decomposition of hydrogen peroxide through the use of a fixed-bed catalyst , characterised in that the fixed-bed catalyst was produced through the use of at least one exothermic-decomposing platinum precursor.2. Process according to claim 1 , whereby the hydrogen peroxide is undiluted hydrogen peroxide or an aqueous composition containing 50 to 99 percent by weight hydrogen peroxide.3. Process according to claim 1 , whereby the hydrogen peroxide is added to the fixed-bed catalyst.4. Process according to claim 3 , whereby the addition of hydrogen peroxide to the fixed-bed catalyst takes place within up to one minute.5. Process according to claim 1 , whereby the addition takes place by spraying of droplets or by dispensing of liquid.6. Process according to claim 1 , whereby the fixed-bed catalyst comprises one or more porous catalyst supports and at least one catalytically active platinum species.7. Process according to claim 1 , whereby the fixed-bed catalyst is a washcoat-coated or uncoated monolith catalyst claim 1 , a bulk catalyst comprising washcoat-coated or uncoated bulk form bodies claim 1 , a catalyst bed comprising wash coat-coated or uncoated bulk form bodies or a washcoat-coated metal honeycomb or metal mesh catalyst.8. Process according to claim 6 , whereby the platinum of the at least one catalytically active platinum species contained in the fixed-bed catalyst originates claim 6 , at least in part claim 6 , from the at least one exothermic-decomposing platinum precursor.9. Process according to claim 1 , whereby the platinum content of the fixed-bed catalyst is 0.5 to 200 g per litre of catalyst volume.10. Process according to claim 6 , whereby the material of the porous ...

METHOD FOR FABRICATING A TITANIUM-CONTAINING SILICON OXIDE MATERIAL WITH HIGH THERMAL STABILITY AND APPLICATIONS OF THE SAME

The present invention discloses a method for fabricating a titanium-containing silicon oxide material with high thermal stability and applications of the same, wherein a titanium source, a silicon source, an alkaline source, a template molecule and a peroxide are formulated into an aqueous solution; the aqueous solution reacts to generate a solid product; the solid product is separated from the aqueous solution with a solid-liquid separation process and dried; the solid product is calcined to obtain a titanium-containing silicon oxide material with high specific surface area. The titanium-containing silicon oxide material fabricated by the present invention has high thermal stability. Therefore, it still possesses superior catalytic activity after calcination. The titanium-containing silicon oxide material can be used to catalyze epoxidation of olefin and is very useful in epoxide production. 1. A method for fabricating a titanium-containing silicon oxide material with high thermal stability , comprising steps:mixing a titanium source, a silicon source, an alkaline source, a template molecule, a solvent and a peroxide to form an aqueous solution;after said aqueous solution have reacted, undertaking a solid-liquid separation process of said aqueous solution, and undertaking a drying process of a solid product separated from said aqueous solution; and {'br': None, 'i': x', 'x, 'sub': 2', '2, 'TiO(1−)SiO\u2003\u2003(I)'}, 'undertaking a calcination process of said solid product acquired in said solid-liquid separation process to obtain a titanium-containing silicon oxide material having Formula (I) in an anhydrous statewherein x ranges from 0.00001-0.5;wherein said titanium-containing silicon oxide material has an average pore size of 10 angstroms or more;wherein said titanium-containing silicon oxide material has a pore size of 90% or more of the total pore volume of 5 to 200 Å; and{'sup': '3', 'wherein said titanium-containing silicon oxide material has a specific ...

Doped carbonaceous materials for photocatalytic removal of pollutants under visible light, making methods and applications of same

A method of synthesizing a doped carbonaceous material includes mixing a carbon precursor material with at least one dopant to form a homogeneous/heterogeneous mixture; and subjecting the mixture to pyrolysis in an inert atmosphere to obtain the doped carbonaceous material. A method of purifying water includes providing an amount of the doped carbonaceous material in the water as a photocatalyst; and illuminating the water containing the doped carbonaceous material with visible light such that under visible light illumination, the doped carbonaceous material generates excitons (electron-hole pairs) and has high electron affinity, which react with oxygen and water adsorbed on its surface forming reactive oxygen species (ROS), such as hydroxyl radicals and superoxide radicals, singlet oxygen, hydrogen peroxide, that, in turn, decompose pollutants and micropollutants.

CATALYST CARRIER MODULE FOR LARGE-CAPACITY CATALYTIC REACTOR

Provided is a catalyst carrier module for a large-capacity catalyst reactor, which can be assembled in a large-capacity structure by laminating a flat plate and a wave plate to be fixed in a can without brazing the flat plate and the wave plate constituting a cell forming body, for use in a catalytic reactor requiring a large-capacity exhaust gas treatment. The catalyst carrier module (or block) includes: a can of a rectangular tube shape having an inlet and an outlet; at least one cell forming body in which a plurality of hollow cells are formed by alternately laminating a wave plate and a flat plate which are coated with a catalyst on a surface thereof and inserted into the can; and a fixing unit installed at the inlet and the outlet of the can to prevent the at least one cell forming body from detaching from the can. 1. A catalyst carrier module comprising:a can of a rectangular tube shape having an inlet and an outlet;at least one cell forming body in which a plurality of hollow cells are formed by alternately laminating a wave plate and a flat plate which are coated with a catalyst on a surface thereof and inserted into the can; anda fixing unit installed at the inlet and the outlet of the can to prevent the at least one cell forming body from detaching from the can.2. The catalyst carrier module of claim 1 , wherein the fixing unit comprises a plurality of fixing bars installed at the inlet and the outlet of the can to prevent the at least one cell forming body from being detached from the can.3. The catalyst carrier module of claim 2 , wherein each of the plurality of fixing bars is fixed to both sides of the can using a fastening member.4. The catalyst carrier module of claim 2 , wherein each of the plurality of fixing bars is bonded to the can by one of brazing claim 2 , welding claim 2 , soldering claim 2 , and diffusion bonding.5. The catalyst carrier module of claim 1 , wherein the fixing unit comprises first to fourth fixing members both sides of which ...

Extruded resid demetallation catalyst

Catalyst supports, supported catalysts, and a method of preparing and using the catalysts for the demetallation of metal-containing heavy oil feedstocks are disclosed. The catalyst supports comprise alumina and 5 wt % or less titania. Catalyst prepared from the supports have at least 30 to 80 volume percent of its pore volume in pores having a diameter of between 200 and 500 angstroms. Catalysts in accordance with the invention exhibit improved catalytic activity and stability to remove metals from heavy feedstocks during a hydroconversion process. The catalysts also exhibit increased sulfur and MCR conversion.

Chitosan based high performance filter with self-regenerating ability

A self-regenerating chitosan based filter medium for disinfecting and purifying organic pollutants and other pollutants in a gas or liquid is disclosed herein. Porosity and surface charge of said filter medium is manipulative/tunable by varying one or more of the following parameter(s): concentration of chitosan, crosslinking density, amount of copolymers and additives, freezing temperature, freezing profile, and/or types of crosslinker used. The present filter medium is capable of self-regenerating under exposure to ultra-violet light for sufficient time and removing over 90% of the pollutants from each influent flowing through the filter medium.

CATALYTIC BODY COATED WITH METAL OXIDE, METHOD OF MANUFACTURING THE SAME, AND METHOD OF PREPARING 1,3-BUTADIENE USING THE SAME

According to an embodiment of the present invention, there are provided a catalytic body, a method of manufacturing the same, and a method of preparing 1,3-butadiene using the same. The catalytic body includes an inactive support; an intermediate layer disposed on a surface of the inactive support; and an active layer disposed on a surface of the intermediate layer, wherein the active layer includes catalyst powder and a binder. 1. A catalytic body comprising:an inactive support;an intermediate layer disposed on a surface of the inactive support; andan active layer disposed on a surface of the intermediate layer,wherein the active layer includes catalyst powder and a binder.2. The catalytic body of claim 1 , wherein the inactive support has a porosity of 70 vol % or less.3. The catalytic body of claim 2 , wherein the inactive support is of one shape selected from the group consisting of a spherical shape claim 2 , a cylindrical shape claim 2 , a ring shape claim 2 , a platy shape claim 2 , and a combination of two or more thereof.4. The catalytic body of claim 3 , wherein the inactive support is one selected from the group consisting of alumina claim 3 , silica claim 3 , zirconia claim 3 , silicon carbide claim 3 , cordierite claim 3 , and a combination of two or more thereof.5. The catalytic body of claim 1 , wherein the intermediate layer may consist of one selected from the group consisting of alumina claim 1 , silica claim 1 , kaolin claim 1 , TiO claim 1 , ZnO claim 1 , bentonite claim 1 , and a combination of two or more thereof.6. The catalytic body of claim 1 , wherein the intermediate layer has a weight of 3 to 15 g/L with respect to a volume of the inactive support.7. The catalytic body of claim 1 , wherein the catalyst powder is an oxide derived from one selected from the group consisting of iron claim 1 , magnesium claim 1 , manganese claim 1 , zinc claim 1 , bismuth claim 1 , molybdenum claim 1 , and a combination of two or more thereof.8. The catalytic ...

PHOTOCATALYST TRANSFER FILM AND PRODUCTION METHOD THEREOF

Provided are a photocatalyst transfer film allowing a uniform and highly transparent photocatalyst layer to be transferred to the surfaces of various transfer base materials; and a production method thereof. The photocatalyst transfer film has, on a biaxially oriented polypropylene film, a photocatalyst layer containing a titanium oxide particle-containing photocatalyst, a silicon compound and a surfactant. The production method of the photocatalyst transfer film includes applying a photocatalyst coating liquid to a biaxially oriented polypropylene film; and performing drying. The photocatalyst coating liquid contains a titanium oxide particle-containing photocatalyst, a silicon compound, a surfactant and an aqueous dispersion medium. 1. A photocatalyst transfer film having , on a biaxially oriented polypropylene film , a photocatalyst layer containing a titanium oxide particle-containing photocatalyst , a silicon compound and a surfactant.2. The photocatalyst transfer film according to claim 1 , wherein the silicon compound is a hydrolysis condensate of a tetrafunctional silicon compound claim 1 , the hydrolysis condensate being obtained under the presence of an organic ammonium salt.3. The photocatalyst transfer film according to claim 1 , wherein the surfactant is an acetylene-based surfactant.4. The photocatalyst transfer film according to claim 1 , wherein the photocatalyst layer has a thickness of 20 to 300 nm.5. The photocatalyst transfer film according to claim 1 , wherein the biaxially oriented polypropylene film has a thickness of 12.5 to 100 μm.6. The photocatalyst transfer film according to claim 1 , wherein a protective layer containing a silicon compound is further laminated on the photocatalyst layer.7. A method for producing a photocatalyst transfer film claim 1 , comprising:applying a photocatalyst coating liquid to a biaxially oriented polypropylene film, the photocatalyst coating liquid containing a titanium oxide particle-containing photocatalyst ...

METHOD FOR APPLYING PHOTOCATALYTIC COATINGS WITHOUT USING BINDERS, AND USE OF A COATING

The invention relates to a method for applying titanium dioxide-based photocatalytic coatings to a carrier material without using binders. The invention also relates to the use of a coating. According to the invention, a titanium dioxide suspension together with a carrier liquid is sprayed onto a hot carrier in the form of a fine aerosol so that the carrier liquid flash evaporates and titanium dioxide particles of the titanium dioxide suspension are flash sintered onto the carrier material, water being used as the carrier liquid and the carrier material having a temperature of 150 to 250° C. during spraying. According to the invention, a porous and yet stable layer for a catalyst for an efficient and rapid degradation of pollutants is produced. 1. A method for binder-free application of titanium dioxide-based photocatalytic coatings to a support material , where a titanium dioxide suspension with a carrier liquid is sprayed in the form of a fine aerosol onto a hot support , so that the carrier liquid undergoes flash evaporation and titanium dioxide particles of the titanium dioxide suspension undergo flash sintering onto the support material , the carrier liquid used being water , during the sprayed application, the support material has a temperature of 150 to 250° C., thus forming a porous and yet stable layer for a catalyst for efficient and rapid pollutant degradation,', 'the heat is generated in the support material itself, and', 'the support material is traversed by an electrical current., 'characterized in that'}2. The method as claimed in claim 1 , characterized in that during the sprayed application claim 1 , the support material has a temperature which lies above the boiling temperature of the carrier liquid.3. The method as claimed in claim 1 , characterized in that the titanium dioxide suspension has a fraction of 5 to 20 mass % of titanium dioxide particles.4. The method as claimed in claim 1 , characterized in that the method is multiply repeated.5. ( ...

PURIFICATION AND DECOLORIZATION OF POLYMERS

Methods according to the present invention decolorize a polymer by mixing a solution of the polymer with a photocatalyst and exposing the mixture to ultraviolet light; by way of non-limiting example, the polymer may be a star polymer and the photocatalyst may be titanium dioxide. Methods according to the present invention also utilize a metal scavenger, in some embodiments a solid-phase metal scavenger, to remove a metal catalyst from a polymer solution; by way of non-limiting example, the metal catalyst may be a tin catalyst. The decolorization methods and the catalyst removal methods of the present invention may be practiced separately, sequentially in any order, or simultaneously. 1. A method for decolorization of a polymer composition comprising a polymer and a solvent , comprising:(a) adding a photocatalyst to the polymer composition, and(b) exposing the polymer composition to ultraviolet (UV) light to remove color from the polymer composition.2. A method for preparing a polymer composition comprising a polymer and a solvent , comprising:(a) adding a metal scavenger to the polymer composition to form a complex with a metal contaminant in the polymer composition;(b) separating the metal scavenger and metal contaminant complex from the polymer;(c) adding a photocatalyst to the polymer composition;(d) exposing the polymer composition to ultraviolet (UV) light to remove color from the polymer composition; and(e) separating the photocatalyst from the polymer composition.3. A method for preparing a polymer composition comprising a polymer and a solvent , comprising:(a) adding a metal scavenger to the polymer composition to form a complex with a metal contaminant in the polymer composition; and(b) separating the metal scavenger and metal contaminant complex from the polymer,wherein the metal scavenger is a metal scavenger chelating agent.4. A method for preparing a pharmaceutical composition , comprising:(a) treating a polymer composition comprising a polymer and a ...

METHOD AND APPARATUS FOR GENERATING AND FOR FUSING ULTRA-DENSE HYDROGEN

A method for generating and for fusing ultra-dense hydrogen in which molecular hydrogen is fed into at least one cavity and catalyzed, where the splitting and subsequent condensation of the molecular hydrogen is initiated on a catalyst of the cavity to form an ultra-dense hydrogen. The ultra-dense hydrogen is exposed to pressure or electromagnetic radiation to initiate fusion of the ultra-dense hydrogen in the at least one cavity and the reaction heat is led out from the at least one cavity. The pressure as mechanical resonance or the electromagnetic radiation as electromagnetic resonance amplifies the field and therefore the effect. Also, an apparatus for carrying out the method is disclosed. 113-. (canceled)14. A method for generating and for fusing ultra-dense hydrogen , in which molecular hydrogen is led into at least one cavity and catalyzed , comprising the following steps:initiating condensation of the molecular hydrogen at a catalyst of the cavity to an ultra-dense hydrogen,initiating fusion of the ultra-dense hydrogen in the at least one cavity, andguiding reaction heat out from the at least one cavity.15. The method according to claim 14 , wherein molecular hydrogen is bound to the ultra-dense hydrogen after the condensing.16. The method according to claim 14 , wherein the fusion is initiated electrically claim 14 , electromagnetically or mechanically.17. The method according to claim 14 , wherein the reaction heat guided out from the at least one cavity is used for further initiation of fusion.18. The method according to claim 14 , wherein the reaction heat guided out from the at least one cavity is converted into mechanical claim 14 , electrical or chemical energy.19. An apparatus for carrying out a method for generating and for fusing ultra-dense hydrogen claim 14 , in which molecular hydrogen is led into at least one cavity and catalyzed claim 14 , comprising the steps of initiating condensation of the molecular hydrogen at a catalyst of the cavity to ...

SURFACE COATINGS FOR SELF-DECONTAMINATION

An apparatus includes a substrate having a surface and a transparent photocatalyst coating secured on the surface of the substrate, wherein the transparent photocatalyst coating includes titanium oxide and a component selected from a fluorescent dye, ultra-fine glitter, indium tin oxide, aluminum zinc oxide, silver nitrate, and combinations thereof. The substrate is preferably selected from an appliance handle, doorknob, switch, keyboard, countertop, appliance handle, equipment button, touchscreen, handrail, light emitting device, and light cover. Such substrates are frequently touched by one or more users and may become contaminated. However, the transparent photocatalyst coating may be self-decontaminating. 1. An apparatus , comprising:a substrate having a surface; anda transparent photocatalyst coating secured on the surface of the substrate, wherein the transparent photocatalyst coating includes titanium oxide and a component selected from a fluorescent dye, ultra-fine glitter, indium tin oxide, aluminum zinc oxide, silver nitrate, and combinations thereof.2. The apparatus of claim 1 , wherein the substrate is selected from an appliance handle claim 1 , doorknob claim 1 , switch claim 1 , keyboard claim 1 , countertop claim 1 , appliance handle claim 1 , equipment button claim 1 , touchscreen claim 1 , handrail claim 1 , light emitting device claim 1 , and light cover.3. The apparatus of claim 1 , wherein the photocatalyst coating is transparent.4. The apparatus of claim 3 , wherein the photocatalyst coating is secured to the surface of the substrate by a layer of a binder disposed between the surface of the substrate and the photocatalyst coating claim 3 , wherein the binder layer is transparent.5. The apparatus of claim 1 , wherein the photocatalyst coating is formed from a mixture including a titanium oxide sol and an amorphous titanium peroxide sol claim 1 , wherein the mixture includes less than or equal to 30 weight percent (wt %) titanium oxide sol based ...

SINGLE-STEP CONVERSION OF N-BUTYRALDEHYDE TO 2-ETHYLHEXANAL

Disclosed is a method of making and using a titania supported palladium catalyst for the single step synthesis of 2-ethylhexanal from a feed of n-butyraldehyde. This titania supported palladium catalyst demonstrates high n-butyraldehyde conversion but also produces 2-ethylhexanal in an appreciable yield with maintained activity between runs. This method provides a single step synthesis of 2-ethylhexanal from n-butyraldehyde with a catalyst that can be regenerated that provides cleaner downstream separations relative to the traditional caustic route. 113.-. (canceled)15. The method according to claim 14 , wherein the reducing agent is about 10% hydrogen at about 20 SCCM in helium at about 180 SCCM.16. The method according to claim 14 , wherein the reducing agent is about 50% v/v methanol and about 50% v/v water.17. The method according to claim 14 , wherein the reducing agent is about 60% hydrazine and about 30% acetone.18. The method according to claim 15 , wherein the noble metal shells have a particle size of less than about 2 nm.19. The method according to claim 16 , wherein the noble metal shells have a particle size of less than about 5 nm.20. The method according to claim 17 , wherein the noble metal shells have a particle size of less than about 7 nm. This invention generally relates to a method for the preparation and use of an eggshell catalyst having palladium nanoparticles deposited on a titania solid support. Particularly, this invention seeks to optimize the single step conversion of n-butyraldehyde to 2-ethylhexanal through the synthesis and use of palladium nanoparticles on a titania support forming an eggshell catalyst.The custom design of a metal-supported catalyst is often determinative of process activity and selectivity in a reaction—crucial in almost every industrial process. Even minor adjustments to a catalyst or to catalyst synthesis conditions can drastically alter the catalytic properties, significantly impacting process activity and ...

CONTINUOUS HYDROGENATION OF LEVULINIC ACID

The invention relates to a continuous or repetitive batch process for the hydrogenation of levulinic acid (LA) or esters thereof to at least gamma valerolactone (GVL) in a reactor comprising a feed stream and an outlet stream, in the presence of a solid Ru catalyst, said process comprising (a) pretreating said solid Ru catalyst with a reductant; and (b) reacting levulinic acid with hydrogen and the pretreated solid Ru catalyst obtained in step (a) at a temperature and residence time suitable to form at least GVL, characterized in that the pretreatment is in the presence of a first solvent which comprises water. This process is stable and little or no Ru will leak form the support. 1. Continuous or repetitive batch process for the hydrogenation of levulinic acid (LA) or esters thereof to at least gamma valerolactone (GVL) in a reactor comprising a feed stream and an outlet stream , in the presence of a solid Ru catalyst , said process comprising(a) pretreating said solid Ru catalyst with a reductant; and(b) reacting levulinic acid with hydrogen and the pretreated solid Ru catalyst obtained in step (a) at a temperature and residence time suitable to form at least GVL,characterized in that the pretreatment is done in the presence of a first solvent which comprises water.2. Process according to wherein the pretreatment is done at a temperature of 350° C. or less.3. Process according to wherein the reductant is hydrogen.4. Process according to wherein the temperature in step (a) is between 80° C. and 350° C. claim 1 , preferably the temperature is the same as in step (b).5. Process according to wherein step (a) and step (b) are carried out in the same reactor.6. Process according to wherein the first solvent is essentially free of GVL.7. Process according to wherein the hydrogenation reaction is done in the presence of a second solvent.8. Process according to wherein the feed stream comprises LA and optionally (at least part of) said second solvent.9. Process according ...

COATINGS THAT REDUCE OR PREVENT BARNACLE ATTACHMENT TO A MARINE STRUCTURE

An apparatus includes a marine component or structure having a surface to be exposed to a marine environment during use. A photocatalyst coating is secured to the surface of the marine structure, wherein the photocatalyst coating includes titanium oxide. The marine component or structure is preferably selected from a boat hull, dock post, dock piling, pier, and buoy. A method may be provided for reducing or preventing barnacle attachment to a marine component or structure, including forming a transparent photocatalyst coating on an external surface of the marine structure, wherein the transparent photocatalyst coating includes a titanium oxide, and placing the marine component or structure in service within a marine environment. 1. An apparatus , comprising:a marine component or structure having a surface to be exposed to a marine environment during use of the marine component or structure; anda photocatalyst coating secured to the surface of the marine structure, wherein the photocatalyst coating includes titanium oxide.2. The apparatus of claim 1 , wherein the marine component or structure is selected from a boat hull claim 1 , dock post claim 1 , dock piling claim 1 , pier claim 1 , and buoy.3. The apparatus of claim 1 , wherein the photocatalyst coating further includes a fluorescent dye and/or ultra-fine glitter.4. The apparatus of claim 1 , wherein the titanium oxide includes anatase titanium oxide.5. The apparatus of claim 1 , wherein the photocatalyst coating includes a further photocatalytic oxide including indium tin oxide and/or aluminum zinc oxide.6. The apparatus of claim 1 , wherein the marine structure includes a material selected from wood claim 1 , fiberglass claim 1 , plastic claim 1 , metal claim 1 , and glass.7. The apparatus of claim 1 , wherein the photocatalyst coating is secured to a layer of paint that has been applied to the surface of the marine structure.8. The apparatus of claim 1 , further comprising:a transparent binder layer secured ...

Acid-resistant catalyst supports and catalysts

A process for preparing a catalyst comprises coating substantial internal surfaces of porous inorganic powders with titanium oxide to form titanium oxide-coated inorganic powders. After the coating, an extrudate comprising the titanium oxide-coated inorganic powders is formed and calcined to form a catalyst support. Then, the catalyst support is impregnated with a solution containing one or more salts of metal selected from the group consisting of molybdenum, cobalt, and nickel.

PHOTOCATALYST FORMULATIONS AND COATINGS

An apparatus includes a substrate having a surface, and a transparent semiconductor photocatalyst layer secured to the surface of the substrate, wherein the photocatalyst layer includes titanium oxide and a component selected from a fluorescent dye, ultra-fine glitter, indium tin oxide, aluminum zinc oxide, silver nitrate, and combinations thereof. The photocatalyst coating may be formed on a substrate using a formulation that includes an aqueous mixture of titanium oxide and amorphous titanium peroxide, wherein the aqueous mixture may further include one of the components. A method of forming the photocatalyst coating may include applying an aqueous mixture of titanium oxide and amorphous titanium peroxide to a surface of the substrate, wherein the photocatalyst coating includes a fluorescent dye, ultra-fine glitter, indium tin oxide, aluminum zinc oxide, and/or silver nitrate. The aqueous mixture may then be dried and heated to 100 degrees Celsius or greater. 1. An apparatus , comprising:a substrate having a surface; anda transparent semiconductor photocatalyst layer secured to the surface of the substrate, wherein the transparent semiconductor photocatalyst layer includes titanium oxide and a component selected from a fluorescent dye, ultra-fine glitter, indium tin oxide, aluminum zinc oxide, and/or silver nitrate.2. The apparatus of claim 1 , wherein the component is a fluorescent dye.3. The apparatus of claim 1 , wherein the component is ultra-fine glitter.4. The apparatus of claim 1 , wherein the component is indium tin oxide.5. The apparatus of claim 1 , wherein the component is aluminum zinc oxide.6. The apparatus of claim 1 , wherein the component is silver nitrate.7. The apparatus of claim 1 , wherein the substrate is a transparent material selected from glass claim 1 , fused quartz and plastic.8. The apparatus of claim 7 , further comprising:a light-emitting element disposed adjacent to the substrate to direct light through the transparent substrate ...

POROUS CARBON MATERIAL COMPOSITES AND THEIR PRODUCTION PROCESS, ADSORBENTS, COSMETICS, PURIFICATION AGENTS, AND COMPOSITE PHOTOCATALYST MATERIALS

A porous carbon material composite formed of a porous carbon material and a functional material and equipped with high functionality. The porous carbon material composite is formed of (A) a porous carbon material obtainable from a plant-derived material having a silicon (Si) content of 5 wt % or higher as a raw material; and (B) a functional material adhered on the porous carbon material, and has a specific surface area of 10 m/g or greater as determined by the nitrogen BET method and a pore volume of 0.1 cm/g or greater as determined by the BJH method and MP method. 1. A process for producing a porous carbon material composite , the process comprising:carbonizing a silicon-containing plant-derived material at from 800° C. to 1,400° C. and generating a precursor carbonized material;reducing the silicon in the precursor carbonized material by treating the carbonized material with a hydrofluoric acid or an alkali;activating the precursor carbonized material by subjecting the precursor carbonized material to a steam stream and generation a porous carbon material; andcausing a functional material to adhere on the porous carbon material.2. The process of claim 1 , comprising activating the precursor carbonized material by subjecting the precursor carbonized material to the steam stream for at least two hours claim 1 , the steam being at a temperature of 900 degrees Centigrade.3. The process of claim 1 , comprising reducing the silicon in the precursor carbonized material by treating the carbonized material with the hydrofluoric acid.4. The process for producing the porous carbon material composite according to claim 1 , wherein:the plant-derived material has a silicon content of 5 wt % or higher;the porous carbon material has a silicon content of 1 wt % or lower; and{'sup': 2', '3, 'the porous carbon material composite has a specific surface area of 10 m/g or greater as determined by the nitrogen BET method and a pore volume of 0.1 cm/g or greater as determined by the ...

DIESEL OXIDATION CATALYST CONTAINING MANGANESE

The present invention relates to a diesel oxidation catalyst, which comprises a carrier body having a length L extending between a first end face a and a second end face b and a catalytically active material zone A arranged on the carrier body, wherein the material zone A contains palladium and platinum on a manganese-containing carrier oxide, wherein the carrier oxide consists of a carrier oxide component A and a carrier oxide component B and the carrier oxide component B consists of manganese and/or a manganese compound and is present in an amount of 5 to 15 wt. %, calculated as MnOand based on the total weight of the manganese-containing carrier oxide. 1. A diesel oxidation catalyst , which comprises a carrier body having a length L extending between a first end face a and a second end face b and a catalytically active material zone A arranged on the carrier body , wherein the material zone A contains palladium and platinum supported on a manganese-containing carrier oxide , wherein the manganese-containing carrier oxide consists of carrier oxide component A and a carrier oxide component B and the carrier oxide component B consists of manganese and/or a manganese compound and is present in an amount of 5 to 15 wt. % , calculated as MnOand based on the total weight of the manganese-containing carrier oxide.2. Diesel oxidation catalyst according to claim 1 , wherein the carrier oxide component A is selected from the series consisting of aluminum oxide claim 1 , doped aluminum oxide claim 1 , silicon oxide claim 1 , titanium dioxide and mixed oxides containing one or more of said oxides.3. Diesel oxidation catalyst according to claim 1 , wherein the carrier oxide component A is doped aluminum oxide.4. Diesel oxidation catalyst according to claim 1 , wherein the carrier oxide component A is a mixed oxide comprising aluminum oxide and silicon oxide or a silicon-oxide-doped aluminum oxide.5. Diesel oxidation catalyst according to claim 1 , wherein claim 1 , the carrier ...

Unit for chlorine dioxide generation and chlorine dioxide generation device

The present invention provides a chlorine dioxide generation unit that can release practically sufficient amount of chlorine dioxide for an extended period of time while being compact. The present invention provides a chlorine dioxide generation unit, characterized in that said unit comprises an agent storage space portion and at least two light source portions, said light source portion is for generating light consisting of wavelengths substantially in the visible region, said agent storage space portion stores an agent comprising solid chlorite, and said agent storage space portion comprises one or more openings so that air could move in and out of said agent storage space portion, wherein chlorine dioxide gas is generated by irradiating said light generated from said light source portion onto said agent present inside said agent storage space portion.

Processes for the manufacturing of oxidation catalysts

Disclosed are catalysts comprised of platinum and gold. The catalysts are generally useful for the selective oxidation of compositions comprised of a primary alcohol group and at least one secondary alcohol group wherein at least the primary alcohol group is converted to a carboxyl group. More particularly, the catalysts are supported catalysts including particles comprising gold and particles comprising platinum, wherein the molar ratio of platinum to gold is in the range of about 100:1 to about 1:4, the platinum is essentially present as Pt(0) and the platinum-containing particles are of a size in the range of about 2 to about 50 nm. Also disclosed are methods for the oxidative chemocatalytic conversion of carbohydrates to carboxylic acids or derivatives thereof. Additionally, methods are disclosed for the selective oxidation of glucose to glucaric acid or derivatives thereof using catalysts comprising platinum and gold. Further, methods are disclosed for the production of such catalysts. 126-. (canceled)27. A process for manufacturing an oxidation catalyst comprising the steps of:a) mixing a support with an aqueous solution comprising at least one gold-containing compound to form a slurry,b) adding a base to the slurry to form an insoluble gold complex which deposits on the surface of the support thereby forming a gold-containing support,c) heating the gold-containing support,d) mixing the gold-containing support from step c) with an aqueous solution or a colloid comprising at least one platinum-containing compound to impregnate the gold-containing support with the platinum-containing compound,e) drying the resulting impregnated support from step d) at a temperature up to about 120° C., andf) reducing platinum on the dried impregnated support from step e) at a temperature in the range of from about 200° C. to about 600° C. to produce the oxidation catalyst, wherein the oxidation catalyst comprises particles comprising gold and particles comprising platinum on the ...

TITANIUM OXIDE AEROGEL COMPOSITES

The invention relates to titanium oxide aerogels, in particular to titanium oxide binary or ternary (e.g. titanium oxide-carbon) aerogel monoliths possessing ordered meso- and macroporosity. The porous scaffold can be made with or without addition of binders and/or surfactants. The aerogel obtained by this method has a specific surface area greater than 60 m2/g and porosity larger than 60%. The surface area ranges from 60 to 300 m2/g. The porosity can reach as high as 99.6%. The size of the titanium oxide crystals are between 5 nm and 100 nm. The aerogel contains 100% titanium oxide. The composite (binary or ternary) aerogel can be prepared by adding at least 10% carbon in the form of (carbon nanotubes, carbon nanofibers, carbon microfibers, exfoliated graphene, cellulose fibers, polymer fibers, metallic and metal oxide nano and microfibers etc.). The aerogel can be prepared with a predeterminable shape. It can be shaped in a mold having a shape of a cylinder, cube, sheet or sphere. The aerogel can be also transformed into a supported or self-standing film with a thickness. The material can be used as a self-cleaning filter e.g. in a solar-thermal water and air purification system, in mesoscopic solar cells e.g. dye sensitized solar cells, multifunctional filler in polymer composites, in ceramics, in metals, thermoelectric material to convert (waste) heat into electricity, heat insulation material and electrode material in lithium ion batteries and supercapacitors. 1. Titanium oxide aerogel made of at least 90% titanium oxide and showing a porosity of at least 90%.2. Aerogel according to with a porosity between 90% and 99.6%.3. Aerogel according to made of 100% of titanium oxide.4. Aerogel according to made of at least 90% titanium oxide claim 1 , showing a porosity of at least 60% claim 1 , having a specific surface area greater than 60 m/g and a porosity greater than 60% claim 1 , said aerogel being obtained according to a process including a step where a ...

RADIOACTIVE CESIUM ADSORBENT AND METHOD OF REMOVING RADIOACTIVE CESIUM USING THE SAME

A radioactive cesium adsorbent includes photocatalyst particles and Prussian blue. The ferric ions of the Prussian blue are reduced to ferrous ions by activation of the photocatalyst particles. A method of removing radioactive cesium using the radioactive cesium adsorbent includes preparing a composition comprising photocatalyst particles and Prussian blue; preparing a precursor solution by mixing radioactive cesium and the composition prepared in the preparing of a composition; and reducing ferric ions of the Prussian blue to ferrous ions by activating the photocatalyst particles in the precursor solution prepared in the preparing of a precursor solution. 1. A radioactive cesium adsorbent comprising:photocatalyst particles; andPrussian blue,wherein ferric ions of the Prussian blue are reduced to ferrous ions by activation of the photocatalyst particles.2. The radioactive cesium adsorbent according to claim 1 , wherein the photocatalyst particles comprise one or more selected from the group consisting of TiO claim 1 , ZnO claim 1 , WO claim 1 , SnO claim 1 , CdS claim 1 , and FeO.3. The radioactive cesium adsorbent according to claim 1 , wherein activation of the photocatalyst particles is caused by UV light within a wavelength range within which the photocatalyst particles are activated.5. A method of removing radioactive cesium claim 1 , comprising:preparing a composition comprising photocatalyst particles and Prussian blue;preparing a precursor solution by mixing radioactive cesium and the composition prepared in the preparing of a composition; andreducing ferric ions of the Prussian blue to ferrous ions by activating the photocatalyst particles in the precursor solution prepared in the preparing of a precursor solution.6. The method according to claim 5 , wherein claim 5 , in the preparing of a precursor solution claim 5 , a total concentration of the photocatalyst particles and the Prussian blue contained in the precursor solution is 2 to 20 g/L.7. The method ...

PROCESS FOR PRODUCING CARBON SUBSTRATES LOADED WITH METAL OXIDES AND CARBON SUBSTRATES PRODUCED IN THIS WAY

The present invention relates to a process for producing a carbon substrate loaded with metal oxides, in particular a carbon material which contains metal oxide nanoparticles and is preferably suitable for use in a catalyst and/or as a catalyst, wherein, in a first process step, nanoparticles of metal oxides are introduced into a matrix based on at least one organic polymer, in particular are dispersed therein, and, in a second process step, the polymer matrix containing the nanoparticles is subsequently carbonised to carbon, optionally followed by a third process step of activation. 1. A carbon substrate loaded with metal oxides on the basis of a carbon material comprising metal oxide nanoparticles ,wherein the carbon substrate contains nanoparticles of metal oxides incorporated in a porous carbon matrix.2. The carbon substrate according to claim 1 ,{'sup': '3', 'wherein the carbon substrate has a porosity, determined as the total pore volume in accordance with Gurvich, in the range from 0.01 to 4 cm/g.'}3. The carbon substrate according to claim 1 ,wherein 10 to 80 percent by volume of the total volume of the carbon substrate is formed by pores.4. The carbon substrate according to claim 1 ,{'sup': '2', 'wherein the carbon substrate has a BET surface area in the range from 100 to 2,000 m/g and a volume-based content of metal oxide(s).'}5. The carbon substrate according to claim 1 ,wherein the carbon substrate has a volume-based content of metal oxide(s) and/or metal oxide nanoparticles in the carbon substrate in the range from 0.01 to 20 percent by volume based on the carbon substrate and wherein the carbon substrate has a mass-based content of metal oxide(s) and/or metal oxide nanoparticles in the carbon substrate in the range from 0.1 to 25 percent by weight based on the carbon substrate.6. The carbon substrate according to claim 1 ,wherein the metal oxide nanoparticles have a mean particle size in the range from 0.1 to 1,000 nm.7. The carbon substrate according ...

A PHOTOCATALYTIC CONCRETE PRODUCT AND A METHOD TO PRODUCE A PHOTOCATALYTIC CONCRETE PRODUCT

The present invention relates to a photocatalytic concrete product and a method to produce a photocatalytic concrete product. In first aspect the invention relates to method of producing photocatalytic concrete product, said concrete product being photocatalytic by containing nano sized photocatalytic particles embedded in an section including a first surface, said first surface forming an exterior surface when the photocatalytic concrete product is used as cover/lining. The method comprises: providing a not-yet-set concrete product having a first surface, applying a dispersion containing nano sized photocatalytic particles, such as titanium dioxide nanoparticles a solvent including a humectant onto said first surface of the not-yet-set concrete product. 141-. (canceled)42132. A method of producing photocatalytic concrete product () , said concrete product being photocatalytic by containing nano sized photocatalytic particles embedded in a section () including a first surface () , the method comprises:{'b': 1', '2, 'providing a not-yet-set concrete product () having a first surface ()'} nano sized photocatalytic particles, such as titanium dioxide nanoparticles', 'a solvent including a humectant selected from the group of glycol, such as glycerol, 1,2-butanediol, 1,4-butanediol, propylene glycol, dipropylene glycol, ethylene glycol, diethylene glycol, triethylene glycol, hexasol, 1,5-pentanediol, 3-methyl-1,5-pentanediol, isoprene glycol and/or selected from the group of polyethers, such as polyethyleneglycols, polypropyleneglycols, polyethyleneglycol methyl ethers, polypropyleneglycol methyl ethers and/or selected from the group of amines, such as ethanolamine, propanolamines, triethanolamine, polyether amines such as polyoxyethyleneamines, polyoxypropyleneamines, polyoxyethylene monoamines, polyoxypropylene monoamines, 'applying a dispersion containing'}{'b': '2', 'onto said first surface () of the not-yet-set concrete product.'}43. A method according to claim 42 ...