НАНЕСЕННЫЙ НА ДИОКСИД КРЕМНИЯ КАТАЛИЗАТОР

Изобретение относится к нанесенному на диоксид кремния катализатору, используемому для производства соответствующего ненасыщенного нитрила в реакции парофазного каталитического аммоксидирования пропана или изобутана. Данный катализатор содержит оксид металла, представленный следующей формулой (1):в которой X представляет собой, по меньшей мере, один или несколько элементов, выбранных из Sb и Те; Т представляет собой, по меньшей мере, один или несколько элементов, выбранных из Ti, W, Mn и Bi; Z представляет собой, по меньшей мере, один или несколько элементов, выбранных из La, Ce, Yb и Y; и а, b, c, d и e находятся в интервалах, составляющих 0,05≤a≤0,5, 0,01≤b≤0,5, 0,001≤c≤0,5, 0≤d≤1, и 0≤e≤1, соответственно, и n представляет собой значение, которое удовлетворяет требованиям атомной валентности. При этом у нанесенного на диоксид кремния катализатора средний размер пор составляет от 60 до 120 нм, суммарный объем пор составляет 0,15 см/г или более, удельная площадь поверхности составляет от ...

СПОСОБ ИЗВЛЕЧЕНИЯ НЕПРОРЕАГИРОВАВШЕГО АММИАКА ИЗ ВЫТЕКАЮЩЕГО ИЗ РЕАКТОРА ПОТОКА

Изобретение относится к усовершенствованному способу восстановления и регенерации непрореагировавшего аммиака из вытекающего потока, содержащего акрилонитрил или метакрилонитрил, полученного из зоны реакции, где кислород, аммиак и углеводород, выбранный из группы, содержащей пропан и изобутан, взаимодействуют в реакторе в присутствии кипящего слоя катализатора аммоксидирования при повышенной температуре для получения соответствующего ненасыщенного нитрила охлаждением вытекающего потока из реактора с кипящим слоем, содержащим соответствующий нитрил и непрореагировавший аммиак, с первым водным раствором фосфата аммония, в котором отношение ионов аммония (NH + 4 ) к фосфат-ионам (PO -3 4 ) составляет от приблизительно 0,7 до приблизительно 1,3, для абсорбции по существу всего непрореагировавшего аммиака, присутствующего в вытекающем потоке реактора для образования второго водного раствора фосфата аммония, более богатого ионами аммония, чем первый раствор, нагревание второго водного раствора ...

УСТРОЙСТВО ДЛЯ УДАЛЕНИЯ ПОВЕРХНОСТНЫХ ВЕЩЕСТВ КАТАЛИЗАТОРА

Изобретение относится к устройству для удаления поверхностного вещества катализатора, присутствующего на поверхности катализатора, с катализатора путем приведения газового потока в контакт с катализатором, расположенным внутри основного корпуса устройства. Данное устройство включает: основной корпус; собирающее устройство для сбора катализатора, находящегося в верхней части основного корпуса; и возвратное устройство для возврата катализатора, соединенное с собирающим устройством. При этом возвратное устройство расположено так, что его нижний конец находится в контакте с данным газовым потоком, и часть катализатора, находящегося в контакте с газовым потоком внутри основного корпуса, собирается собирающим устройством и возвращается внутрь основного корпуса возвратным устройством, длина газового потока в направлении потока газа составляет 55 мм или больше, и средняя скорость потока газа составляет 80 м/с или больше и 500 м/с или меньше в расчете на линейную скорость при 15°C и 1 атм. Предлагаемое ...

УПРАВЛЕНИЕ РЕАКТОРОМ АММОКСИДИРОВАНИЯ

Изобретение относится к вариантам способа аммоксидирования. Согласно одному из предлагаемых способов вводят поток реагентов в реактор аммоксидирования, причем поток реагентов содержит аммиак, кислородсодержащий газ и углеводород, выбранный из группы, состоящей из пропана, пропилена, изобутена, изобутилена и их смесей; вводят пар в змеевики, расположенные в реакторе аммоксидирования, с получением рабочей температуры реактора от 350°C до 480°C. При этом регулируют количество кислорода, вводимого в реактор, и температуру пара с поддержанием линейной скорости, отнесенной к сечению реактора, от 0,5 м/с до 1,5 м/с. Предлагаемые способы позволяют управлять процессом аммоксидирования и сократить отклонения температуры реактора. 3 н. и 31 з.п. ф-лы, 2 ил.

АММОКСИДИРОВАНИЕ КАРБОНОВЫХ КИСЛОТ В СМЕСЬ НИТРИЛОВ

Изобретение относится к способам (вариантам) аммоксидирования или к способу увеличения выхода ацетонитрила в виде побочного продукта, полученного в ходе изготовления акрилонитрила, которые предусматривают введение реагентов, которые содержат по меньшей мере один углеводород, выбранный из группы, в которую входят пропилен и пропан, по меньшей мере одну С1-С4 карбоновую кислоту, аммиак и газ, содержащий молекулярный кислород, в зону реакции, содержащую катализатор аммоксидирования, и проведение реакции указанных реагентов поверх указанного катализатора, при повышенной температуре, с получением продукта, который содержит акрилонитрил, цианид водорода и ацетонитрил. Способ может дополнительно включать введение в контакт эффлюента зоны реакции с жидкостью гашения, которая содержит воду и по меньшей мере одну С1-С4карбоновую кислоту, и добавление по меньшей мере части жидкости гашения в зону реакции после введения в контакт жидкости гашения с эффлюентом зоны реакции. Изобретение позволяет повысить ...

СПОСОБ АММИАЧНОГО ОКИСЛЕНИЯ АЛКАНОВ

Использование: в производстве синтетического волокна. Сущность изобретения: усовершенствованный способ аммиачного окисления алканов. Реагент 1: алкан. Реагент 2: NH3, О2. Условия реакции: паровая фаза, температура 350 - 550oС, общее давление 1 - 6 бар, объемная скорость газовой смеси 100 - 36000 ч-1 , в присутствии инертного газового разбавителя и твердого катализатора, активная фаза которого содержит, по меньшей мере, один элемент, но не более двух, выбираемый из группы, состоящей из Mg, Ca, Mn, Fe, U, La, Co. 11 з. п. ф-лы, 2 ил., 19 табл.

КАТАЛИЗАТОР ДЛЯ ОКИСЛЕНИЯ УГЛЕВОДОРОДОВ ПРИ ГАЗОФАЗНОМ КОНТАКТЕ, СПОСОБ ПОЛУЧЕНИЯ ЭТОГО КАТАЛИЗАТОРА И СПОСОБ ГАЗОФАЗНОГО ОКИСЛЕНИЯ УГЛЕВОДОРОДОВ С ИСПОЛЬЗОВАНИЕМ ЭТОГО КАТАЛИЗАТОРА

Изобретение относится к катализаторам окисления углеводородов. Описан катализатор для окисления углеводородов при газофазном контакте, включающий смешанный оксид металлов молибдена (Мо), ванадия (V), теллура (Те) и ниобия (Nb), представленный химической формулой 1: , где a, b или с независимо представляют собой атомные молярные отношения ванадия, теллура или ниобия при условии, что 0,01≤а≤1, 0,01≤b≤1, 0,01≤с≤1 и n представляет собой атомное молярное отношение кислорода, которое определяется валентностью и атомными молярными отношениями ванадия, теллура и ниобия, и вольфрам (W) или оксид вольфрама, присоединенный к смешанному оксиду металлов, где атомное молярное соотношение вольфрама, присоединенного к смешанному оксиду металлов, и молибдена, содержащегося в смешанном оксиде металлов, составляет от 0,00001:1 до 0,02:1. Описан способ получения указанного выше катализатора, включающий стадии: получения первой смеси предшественника молибдена (Мо), предшественника ванадия (V), предшественника ...

АНТИДЕТОНАЦИОННАЯ ДОБАВКА "ОКТА 2" И ТОПЛИВО С УКАЗАННОЙ ДОБАВКОЙ

Изобретение раскрывает антидетонационную добавку к топливу для двигателей внутреннего сгорания на основе бензина, которая содержит следующие компоненты:(I) 2,4-ксилидин, 2,5-ксилидин, 2,6-ксилидин или их смесь;(II) пара-анизидин или N-метил-пара-анизидин;(III) анилин,(IV) агидол-1 или агидол-12,при следующем содержании компонентов (масс. %):Также раскрывается топливо для двигателей внутреннего сгорания на основе бензина, содержащее указанную антидетонационную добавку. Технический результат заключается в повышении октанового числа топлива, стабильности добавки и топлива при окислении, в уменьшении испаряемости топлива, содержащего добавку, в увеличении срока хранения добавки, в том числе в условиях возможного контакта с водой и ее парами, причем все перечисленное достигается без нарушения технических требований TP ТС 013/2011, ГОСТ Р 51866-2002 и ГОСТ Р 51105-97, СТО 11605031-059-2012 и СТО АНН 40488460-001-2004. 2 н. и 6 з.п. ф-лы, 8 табл.

МАССЫ ОКСИДОВ МЕТАЛЛОВ

... 1. Масса оксидов металлов общей стехиометрии I где М1 означает, по меньшей мере, один из элементов группы, включающей Те и Sb; М2 означает, по меньшей мере, один из элементов группы, включающей Nb, Ti, W, Та и Се; М3 означает, по меньшей мере, один из элементов группы, включающей Pb, Ni, Co, Bi, Pd, Ag, Pt, Cu, Au, Ga, Zn, Sn, In, Re, Ir, Sm, Sc, Y, Pr, Nd и Tb; a равно от 0,01 до 1; b>0-1; с>0-1; d>0-0,5; и n равно числу, которое определяется валентностью и количеством отличных от кислорода элементов в (I), рентгеновская дифрактограмма которых имеет дифракционные рефлексы h, i и k, пики которых лежат под углами дифракции (2θ) 22,2±0,5° (h), 27,3±0,5° (i) и 28,2±0,5° (k), причем дифракционный рефлекс h в пределах рентгеновской дифрактограм-мы является самым интенсивным и имеет полуширину пика максимально 0,5°, интенсивность Рi дифракционного рефлекса i и интенсивность Pk дифракционного рефлекса к выполняют отношение 0,65≤R≤0, 85, в котором R является определяемым формулой R=Pi/(Pi+Pk) соотношением ...

СПОСОБ ПОЛУЧЕНИЯ, ПО МЕНЬШЕЙ МЕРЕ, ОДНОГО ПРОДУКТА ЧАСТИЧНОГО ОКИСЛЕНИЯ И/ИЛИ АММОКИСЛЕНИЯ ПРОПИЛЕНА

... 1. Способ получения, по меньшей мере, одного продукта частичного окисления и/или аммокисления пропилена, при котором a) на первой стадии сырой пропан в присутствии и/или при отсутствии кислорода подвергают гомогенному и/или гетерогенно-катализируемому дегидрированию и/или оксидегидрированию, причем получают содержащую пропан и пропилен газовую смесь 1, и b) от полученной на первой стадии газовой смеси 1, от содержащихся в ней, отличных от пропана и пропилена компонентов, в случае необходимости, отделяют некоторое количество и/или превращают его в другие соединения, причем из газовой смеси 1 получают газовую смесь 1', содержащую пропан и пропилен, а также отличные от кислорода, пропана и пропилена соединения, и на, по меньшей мере, еще одной стадии c) газовую смесь 1 и/или газовую смесь 1' в качестве компонента газовой смеси 2 подвергают гетерогенно-катализируемому частичному газофазному окислению и/или частичному газофазному аммокислению содержащегося в газовой смеси 1 и/или в газовой смеси ...

КАТАЛИТИЧЕСКАЯ КОМПОЗИЦИЯ ДЛЯ СЕЛЕКТИВНОГО ПРЕВРАЩЕНИЯ АЛКАНОВ В НЕНАСЫЩЕННЫЕ КАРБОНОВЫЕ КИСЛОТЫ, СПОСОБ ПОЛУЧЕНИЯ КОМПОЗИЦИИ И СПОСОБ ПРИМЕНЕНИЯ КОМПОЗИЦИИ

... 1. Каталитическая композиция для получения ненасыщенной карбоновой кислоты из алкана, содержащая соединение формулы Mo1VaSbbNbcMdOx, в которой Мо представляет собой молибден, V означает ванадий, Sb означает сурьму, Nb означает ниобий, М представляет собой галлий, висмут, серебро или золото, а составляет от 0,01 до 1, b составляет от 0,01 до 1, с составляет от 0,01 до 1, d составляет от 0,01 до 1 и х определяется требованиями валентности других присутствующих элементов. 2. Каталитическая композиция по п.1, которая имеет формулу Mo1VaSbbNbc MdM'eOx, в которой М' представляет собой тантал, титан, алюминий, цирконий, хром, марганец, железо, рутений, кобальт, родий, никель, платину, бор, мышьяк, литий, натрий, калий, рубидий, кальций, бериллий, магний, церий, стронций, гафний, фосфор, европий, гадолиний, диспрозий, гольмий, эрбий, тулий, тербий, иттербий, лютеций, лантан, скандий, палладий, празеодим, неодим, иттрий, торий, вольфрам, цезий, цинк, олово, германий, кремний, свинец, барий и таллий ...

СПОСОБ ПОЛУЧЕНИЯ ОКСИДНОГО КАТАЛИЗАТОРА И СПОСОБ ПОЛУЧЕНИЯ НЕНАСЫЩЕННОГО НИТРИЛА

Предложен способ получения оксидного катализатора для газофазного контактного аммоксидирования, содержащего Mo, V, Sb и Nb и имеющего состав, представимый следующей формулой (1): MoVSbNbZO, в которой Z означает по меньшей мере один элемент, выбранный из группы, состоящей из W, La, Ce, Yb и Y; значения a, b, c, и d лежат в интервалах 0,01≤a≤0,35, 0,01≤b≤0,35, 0,01≤c≤0,20, и 0,00≤d≤0,10, соответственно; а n означает число, удовлетворяющее балансу валентностей атомов, причем способ включает: - стадию приготовления сырья, на которой получают жидкую водную смесь, содержащую Mo, V, Sb и Nb; - стадию старения, на которой жидкую водную смесь подвергают выстаиванию или перемешиванию в течение периода времени больше или равного 5 минутам и меньше или равного 50 часам, при этом каждое из указанных действий осуществляют при температуре выше 30°C;- стадию сушки, на которой жидкую водную смесь сушат, получая в результате сухой порошок; и - стадию обжига, на которой сухой порошок обжигают, получая тем ...

Катализатор аммоксидирования (варианты)

... 1. Катализатор аммоксидирования, отличающийся тем, что его состав соответствует следующей эмпирической формуле, в указанной пропорции: VSbaSnbTicFedOx, в которой 1≤a≤1,8, 0≤b≤0,35, 0≤с≤0,15, 01,2, то тогда 0 Подробнее

СПОСОБ ПОЛУЧЕНИЯ, ПО МЕНЬШЕЙ МЕРЕ, ОДНОГО ПРОДУКТА ЧАСТИЧНОГО ОКИСЛЕНИЯ И/ИЛИ АММОКИСЛЕНИЯ ПРОПИЛЕНА

Изобретение относится к усовершенствованному способу получения, по меньшей мере, одного продукта частичного окисления и/или аммокисления пропилена, выбранного из группы, включающей пропиленоксид, акролеин, акриловую кислоту и акрилнитрил, исходным веществом которого является сырой пропан, при котором а) на первой стадии сырой пропан в присутствии и/или при отсутствии кислорода подвергают гомогенному и/или гетерогенно-катализируемому дегидрированию и/или оксидегидрированию, причем получают содержащую пропан и пропилен газовую смесь 1, и b) от полученной на первой стадии газовой смеси 1, от содержащихся в ней, отличных от пропана и пропилена компонентов, таких как водород, моноокись углерода, в случае необходимости, отделяют частичное количество и/или превращают его в другие соединения, такие как вода, двуокись углерода, причем из газовой смеси 1 получают газовую смесь 1', содержащую пропан и пропилен, а также отличные от кислорода, пропана и пропилена соединения, и на, по меньшей мере, еще ...

ПРЕДОТВРАЩЕНИЕ ПРОСКОКА АММИАКА В ПРОЦЕССЕ АММОКСИДИРОВАНИЯ АЛКАНА

... 1. Способ снижения проскока аммиака в процессе производства акрилонитрила, включающий введение углеводорода, выбранного из группы, состоящей из пропана и изобутана; аммиака и кислородсодержащего газа в нижнюю часть реактора с псевдоожиженным слоем, содержащим катализатор аммоксидирования, с последующим взаимодействием в присутствии указанного катализатора, с образованием акрилонитрила, отличающийся тем, что в реактор вводят по крайней мере один из от С2 до С5 олефинов, который реагирует с по крайней мере частью непрореагировавшего аммиака и присутствующего в реакторе кислорода. 2. Способ по п.1, отличающийся тем, что углеводород выбирают из пропана. 3. Способ по п.1, отличающийся тем, что С2-С5 олефин представляет собой пропилен. 4. Способ по п.1, отличающийся тем, что реактор представляет собой реактор с псевдоожиженным слоем. 5. Способ по п.4, отличающийся тем, что олефин вводят в реактор с псевдоожиженным слоем, при локализации более, чем по крайней мере 20% от высоты расширенного слоя ...

ОКСИДНЫЙ КАТАЛИЗАТОР, СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ И СПОСОБ ПОЛУЧЕНИЯ НЕНАСЫЩЕННОГО НИТРИЛА

СПОСОБ ПРОИЗВОДСТВА НЕНАСЫЩЕННОГО НИТРИЛА

... 1. Способ производства ненасыщенного нитрила с помощью реакции аммоксидирования пропана в паровой фазе с применением реактора с кипящим слоем в присутствии сложнооксидного катализатора, содержащего Mo, V и Nb, при этом способ содержит стадию:добавления в реактор с кипящим слоем соединения вольфрама с регулированием молярного отношения (отношение W/Mo) вольфрама, содержащегося в соединении вольфрама, к молибдену, содержащемуся в сложнооксидном катализаторе, который находится в реакторе с кипящим слоем, таким образом, чтобы молярное отношение находилось в диапазоне от 0,0001 до 0,1.2. Способ производства ненасыщенного нитрила по п. 1, содержащий стадию добавления в реактор с кипящим слоем соединения молибдена.3. Способ производства ненасыщенного нитрила по п. 1 или 2, в котором сложнооксидный катализатор содержит сложный оксид с составом, представленным следующей формулой (1):MoVNbAXZO(1),в которой компонент A представляет собой, по меньшей мере, один или несколько элементов, выбранных из ...

СПОСОБ ОКИСЛЕНИЯ В РЕАКТОРЕ С ПСЕВДООЖИЖЕННЫМ СЛОЕМ

... 1. Способ проведения реакции в реакторе с псевдоожиженным слоем по меньшей мере одного способного окисляться реагента с молекулярным кислородом в присутствии каталитически активного псевдоожиженного слоя твердых частиц, причем в этом способе содержащий молекулярный кислород газ, концентрация кислорода в котором превышает его концентрацию в воздухе, вводят в псевдоожиженный слой при одновременном поддержании в псевдоожиженном слое турбулентного режима. 2. Способ по п.1, в котором турбулентный режим характеризуется соотношением скорость перехода (Uk): конечная скорость (Ut) в интервале от 0,1:1 до 25:1. 3. Способ по п.1 или 2, в котором твердые частицы обладают диаметром в интервале от 20 до 300 мкм. 4. Способ по п.3, в котором распределение по диаметрам частиц составляет по меньшей мере 20 мкм. 5. Способ по п.1 или 2, в котором псевдоожиженный слой включает твердые частицы, размеры которых находятся в соответствии с одним или несколькими из следующих независимых критериев: (I) по меньшей ...

Verfahren zur Herstellung von Ammoxidationskatalysatoren

METHODE ZUR VERBESSERUNG DER OXYDATION UND AMMOXYDATIONSKATALYSATOREN

Verfahren zur Verminderung von Abfallmaterial während der Herstellung von Acrylonitril

Verwendung einer Vorrichtung zur gleichmäßigen Verteilung von Stoffen

Verwendung einer Vorrichtung, bestehend aus über einen zentralen Hohlkörper miteinander verbundenen Hohlkörpern, deren Mittellinien die Form einer Evolvente beschreiben, zur gleichmäßigen Verteilung von flüssigen und/oder gasförmigen Stoffen oder Stoffgemischen in einem Wirbelbettreaktor.

Oxide catalysts, for gas phase catalytic oxidation or ammoxidation of propane or isobutane, are useful for production of (meth)acrylonitrile and (meth)acrylic acid

Novel oxide catalysts for the gas phase catalytic oxidation or ammoxidation of propane or isobutane. An oxide catalyst for the gas phase catalytic oxidation or ammoxidation of propane or isobutane is of formula Mo1VaSbbNbcZdOm. Z = tungsten, chromium, titanium, aluminum, tantalum, zirconium, hafnium, manganese, iron, ruthenium, cobalt, rhodium, nickel, palladium, zinc, boron, indium, germanium, tin, lead, bismuth, yttrium, gallium, rare earth elements and alkaline earth elements; a = 0.1-0.4; b = 0.1-0.4; c = 0.01-0.3; and d = 0-1 whereby a <= b. Independent claims are also included for: (1) A process for the production of acrylonitrile or methacrylonitrile by reaction of propane or isobutane with ammonia and oxygen in the gas phase in the presence of the oxide catalyst; and (2) A process for the production of acrylic acid or methacrylic acid by reaction of propane or isobutane with oxygen in the gas phase in the presence of the oxide catalyst.

Ammoxidation of propane and preparation of catalyst therefor

PREPARATION OF STABLE TELLURIUM-CONTAINING SOLUTION FROM METALLIC TELLURIUM AND PROCESS FOR PRODUCING TELLURIUM-ANTIMONY CONTAINING OXIDE CATALYST USING SAID SOLUTION

Apparatus and process

PROCEDURE FOR THE PRODUCTION OF ACRYLIC ACID

PROCEDURE FOR THE PRODUCTION AN ANTIMONY OF AN ABSTENTION OF MIXTURE METALLIC OXIDE CATALYST AND SO RECEIVED CATALYST

PROCEDURE FOR THE PRODUCTION OF A METALLIC OXIDE CATALYST

VANADIUM AND ANTIMONY CONTAINING CATALYST AND CATALYST FORERUNNER.

PROCEDURE FOR THE PARTIAL OXIDATION OF HYDROCARBON

GAS DISTRIBUTOR FOR OXYGEN INJECTION INTO A WIRBELSCHICHTREAKTOR

Method of improving oxidation and ammoxidation catalysts

METHOD FOR ENHANCING THE PRODUCTIVITY OF VANADIUM ANTIMONY OXIDE CATALYSTS

Method for the production of at least one partial propylene oxidation and/or ammoxidation product

Mixed metal oxide catalysts for propane and isobutane oxidation and ammoxidation, and methods of preparing same

Improved process for the purification and recovery of acetonitrile

PROCESS FOR THE PRODUCTION OF ANHYDRIDES AND NITRILES

AMMOXIDATION OF CARBOXYLIC ACIDS TO A MIXTURE OF NITRILES

METHOD FOR PREPARING A CATALYST FOR PARTIAL OXIDATION OF ACROLENE

Process for the simultaneous preparation of acrylonitrile and acrylic acid

ARSENIC PROMOTED VANADIUM-ANTIMONY-OXIDE BASED CATALYST FOR SELECTIVE PARAFFIN AMMOXIDATION

... ▓▓▓A process of manufacturing acrylonitrile or methacrylonitrile by the catalytic ▓reaction in the vapor phase of a paraffin selected from propane and isobutane ▓with molecular oxygen and ammonia by catalytic contact of the reactants in a ▓reaction zone with a catalyst, the feed composition having a mole ratio of the ▓paraffin to ammonia in the range of from about 2.5 to 16 and a mole ratio of ▓paraffin to oxygen in the range of from about 1.0 to 10, wherein said catalyst ▓has the elements in the proportions indicated by the empirical formula: ▓VSbmAaDbQqRrOx where A is one or more of Ti, Sn, Fe, Cr and Ga; D is one or ▓more of Li, Mg, Ca, Sr, Ba, Co, Ni, Zn, Ge, Zr, Cu, Ta, Bi, Ce, In, B and Mn; ▓Q is one or more of Mo, W, and Nb; R is one or more of As, Te, and Se; m ▓equals 0.8 to 4; a equals 0.01 to 2; d is 0 to 2; 0<=q~0.01; preferably 0~q~, ▓especially 0~q~0.005; q + r are greater than 0; x is determined by the ▓oxidation state of the cations present. Preferably, the catalyst has ...

CATALYTIC OXIDATION

PROCESS FOR THE PRODUCTION OF NITRILES AND ANHYDRIDES

PROCESS FOR THE PRODUCTION OF NITRILES AND ANHYDRIDES An improved process is provided for the production of anhydrides and nitriles from hydrocarbons by reaction with an oxygen-containing gas comprising oxygen, air or a gas enriched in oxygen relative to air and ammonia where a nitrile is desired, in the presence of a suitable catalyst. In the process, a selective separator provides recycle of a substantial portion of the unreacted hydrocarbon as well as for a controlled amount of a gaseous flame suppressor in the system. The gaseous flame suppressor comprises a substantially unreactive hydrocarbon containing 1 to 5 carbon atoms, carbon dioxide and nitrogen when present in the feed to the ammoxidation/ oxidation reactor. The use of air or oxygen-enriched air in the feed to the ammoxidation/oxidation reactor is particularly advantageous from an economic view in combination with a pressure swing adsorption unit as the selective separator. The process is characterized by high selectivity to ...

FLUIDIZED BED REACTOR WITH GAS COOLER

PROCESS FOR THE AMMOXIDATION OF SATURATED HYDROCARBONS

La présente invention concerne un procédé d'ammoxydation d'hydrocarbures saturés c'est-à-dire la conversion d'alcanes en un mélange renfermant des nitriles .alpha.,.beta.-insaturés. La présente invention a plus particulièrement pour objet un procédé d'ammoxydation d'hydrocarbures saturés acycliques ayant de 3 à 12 atomes de carbone, en phase vapeur en présence d'un catalyseur solide dont la phase active renferme du molybdène, et du vanadium et de l'oxygène caractérisé en ce que ladite phase active renferme également au moins un élément choisi parmi le manganèse, le zinc, le cobalt, le cuivre, le lithium, le sodium, le potassium et l'argent. La présente invention convient plus particulièrement à l'ammoxydation du propane en un mélange renfermant de l'acrylonitrile et du propylène.

PROCESS FOR THE PRODUCTION OF ANHYDRIDES AND NITRILES

CRR101691 PATENT 0159G Dkt. 91A210-1 An improved process is provided for the production of a cyclic anhydrides and nitriles by the vapor phase reaction of a hydrocarbon with oxygen and, optionally, ammonia in the presence of a suitable catalyst. In the improved process, the cyclic anhydride or nitrile product is removed, carbon dioxide and excess carbon monoxide, present in the reactor effluent as by-products, are also removed and the remaining gaseous effluent, comprised mainly of carbon monoxide and unreacted hydrocarbon, is recycled to the reactor. The concentration of carbon monoxide throughout the system is maintained sufficiently high to prevent the formation of a flammable mixture in the reactor or associated equipment.

PROCESS FOR THE AMMOXYDATION OF SATURATED HYDROCARBONS

PROCESS FOR THE AMMOXYDATION OF SATURATED HYDROCARBONS

La présente invention concerne un procédé d'ammoxydation d'hydrocarbures saturés c'est-à-dire la conversion d'alcanes en un mélange renfermant des nitriles .alpha.,.beta.-insaturés. La présente invention a plus particulièrement pour objet un procédé d'ammoxydation d'alcanes en phase vapeur en présence d'un catalyseur solide dont la phase active renferme du molybdène et de l'oxygène caractérisé en ce que ladite phase active renferme également au moins un élément choisi dans le groupe constitué par les métaux alcalino-terreux, Mn, Fe, U, La et Co. La présente invention convient plus particulièrement à l'ammoxydation du propane en un mélange renfermant de l'acrylonitrile et du propylène.

METHOD FOR PREPARING AMMOXIDATION CATALYSTS FOR A FLUIDISED-BED OR MOVING-BED REACTOR

La présente invention concerne un procédé de préparation de catalyseurs comprenant des oxydes mixtes à base de vanadium, d'antimoine et éventuellement d'étain et/ou de titane et/ou de fer et/ou d'autres métaux, déposés sur un support ainsi que leur utilisation pour l'ammoxydation des alcanes. Le procédé de préparation d'un catalyseur défini précédemment, est caractérisé en ce qu'il comprend: l'imprégnation d'un support solide de type oxyde à l'aide d'une solution dans au moins un alcool saturé de composés respectifs de vanadium, d'antimoine, éventuellement d'étain et/ou de titane et/ou de fer et/ou d'autres métaux; la mise en contact du support solide imprégné obtenu, avec une solution aqueuse tampon à pH compris entre 6 et 8; la séparation du solide et son séchage; la calcination du solide en deux étapes, tout d'abord à une température de 300 ~C à 350 ~C, puis à une température de 400 ~C à 800 ~C. Ces catalyseurs sont adaptés à une mise en oeuvre en lit fluidisé ou en lit transporté.

COOLING DEVICE FOR OUTGOING FLOW IN PRODUCTION OF ACRYLONITRILE

КОНСТРУКЦИЯ ЗМЕЕВИКОВ ОХЛАЖДЕНИЯ ДЛЯ РЕАКТОРОВ ОКИСЛЕНИЯ ИЛИ АММОКСИДИРОВАНИЯ

Предложены змеевики охлаждения, используемые в промышленных реакторах окисления или аммоксидирования, которые можно сделать более компактными путем обеспечения отдельных участков, определяющих змеевик охлаждения, в поперечном расположении, а не в продольном расположении.

ПРОЦЕДУРА ЗАПУСКА РЕАКТОРА ПОЛУЧЕНИЯ АКРИЛОНИТРИЛА

Образование взрывоопасных смесей при запуске реактора получения акрилонитрила предотвращается путем включения аммиака в газы, подаваемые в реактор при предварительном подогреве катализатора. В дополнение к образованию тепла окисление этого аммиака снижает содержание кислорода в газе внутри реактора получения акрилонитрила, а также в отходящем газе реактора, при этом снижая риск образования взрывоопасных смесей в этом отходящем газе.

INLET NOZZLE FOR SUPPLY OF ACID

STRUCTURE COILS COOLING FOR REACTORS OXIDATION OR AMMOXIDATION OF

STRUCTURE COILS COOLING FOR REACTORS OXIDATION OR AMMOXIDATION OF

STRUCTURE COILS COOLING FOR REACTORS OXIDATION OR AMMOXIDATION OF

АММОКСИДИРОВАНИЕ СМЕСИ КЕТОНОВ В АЦЕТОНИТРИЛ И ЦИАНИД ВОДОРОДА

В изобретении предложен способ увеличения выхода как HCN, так и ацетонитрила, полученных при производстве акрилонитрила, который предусматривает введение углеводорода, выбранного из группы, в которую входят пропилен и пропан, неочищенного кетона и/или смеси, по меньшей мере, двух кетонов, аммиака и воздуха в зону реакции, которая содержит катализатор аммоксидирования, проведение реакции между углеводородом, кетоном, аммиаком и кислородом над указанным катализатором при повышенной температуре, что позволяет получить акрилонитрил, цианид водорода и ацетонитрил, с последующей рекуперацией акрилонитрила, ацетонитрила и цианида водорода из реактора. Международная заявка была опубликована вместе с отчетом о международном поиске.

СПОСОБ ПОЛУЧЕНИЯ КАТАЛИЗАТОРА С КРЕМНЕЗЕМНЫМ НОСИТЕЛЕМ И СПОСОБ ПРОИЗВОДСТВА НЕНАСЫЩЕННОЙ КАРБОНОВОЙ КИСЛОТЫ ИЛИ НЕНАСЫЩЕННОГО НИТРИЛА

Настоящее изобретение относится к получению катализатора, нанесенного на кремнезем, обладающего превосходным выходом целевого продукта и превосходной стойкостью катализатора к истиранию. Способ получения катализатора, нанесенного на кремнезем, включающий в себя Мо, V, Nb и компонент Х (Sb и/или Те), используемого в парофазном каталитическом окислении или аммоксидировании пропана, включающий стадии: (I) приготовления раствора сырьевой смеси путем смешивания Мо, V, Nb, компонента X, золя кремниевой кислоты и воды; (II) получения сухого порошка путем высушивания раствора сырьевой смеси; и (III) получения катализатора, нанесенного на кремнезем, путем прокаливания сухого порошка, причем золь кремниевой кислоты содержит 10-270 мас.ч. на миллион нитрат-ионов, исходя из содержания SiO2.

СПОСІБ ПРОВЕДЕННЯ РЕАКЦІЇ ОКИСНЕННЯ В РЕАКТОРІ З ПСЕВДОЗРІДЖЕНИМ ШАРОМ, СПОСОБИ ОДЕРЖАННЯ ВІНІЛАЦЕТАТУ, ЕТИЛЕНУ ТА ОЦТОВОЇ КИСЛОТИ

Спосіб проведення реакції в реакторі з псевдозрідженим шаром щонайменше одного здатного окиснюватися реагенту з молекулярним киснем у присутності каталітично активного псевдозрідженого шару твердих часток. У цьому способі газ, що містить молекулярний кисень, концентрація кисню в якому перевищує його концентрацію в повітрі, вводять у псевдозріджений шар при одночасному підтриманні у псевдозрідженому шарі турбулентного режиму. Запропонований спосіб прийнятний для проведення процесів окиснення, амоксидування й карбоксилювання, включаючи одержання малеїнового ангідриду, акрилонітрилу, етилену, оцтової кислоти й вінілацетату.

АММОКСИДИРОВАНИЕ СМЕСИ КЕТОНОВ В АЦЕТОНИТРИЛ И ЦИАНИД ВОДОРОДА

... 1. Способ увеличения выхода побочного продукта в виде HCN и ацетонитрила, полученного при производстве акрилонитрила, отличающийся тем, что он предусматривает введение углеводорода, выбранного из группы, в которую входят пропилен и пропан, неочищенного кетона, аммиака и кислородсодержащего газа в зону реакции, которая содержит катализатор аммоксидирования, проведение реакции между углеводородом, неочищенным кетоном, аммиаком и кислородом над указанным катализатором при повышенной температуре с получением акрилонитрила, цианида водорода и ацетонитрила и последующую рекуперацию акрилонитрила, цианида водорода и ацетонитрила из реактора. 2. Способ по п.1, отличающийся тем, что неочищенный кетон содержит смесь по меньшей мере двух C1-C4кетонов и воды. 3. Способ по п.1, отличающийся тем, что отношение углеводорода к кетону в исходном материале составляет от 1:0,01 до 1:0,5, в пересчете на полное содержание углерода. 4. Способ по п.3, отличающийся тем, что температура лежит в диапазоне от 410 ...

catalyst of ammoxidation and method of obtaining acrylonitrile or metacrylonitrile

СПОСІБ ВИГОТОВЛЕННЯ АКРИЛОНІТРИЛУ АБО МЕТАКРИЛОНІТРИЛУ ІЗ ПРОПАНУ АБО ІЗОБУТАНУ

Спосіб одержання акрилонітрилу або метакрилонітрилу з пропану або ізобутану шляхом амоксидування, який включає здійснення взаємодії пропану або ізобутану з аміаком і молекулярним киснем у газоподібній фазі в реакторі з псевдозрідженим шаром каталізатора, що містить кремнеземний носій із нанесеним на нього складним оксидом, що містить молібден (Мо), телур (Тe), ванадій (V) i ніобій (Nb), і в якому реакцію проводять із введенням у реактор активатора каталізатора, що містить (активатор) принаймні одну сполуку телуру і необов'язково принаймні одну сполуку молібдену. Спосіб згідно з даним винаходом вигідний тим, що каталітичну активність каталізатора надійно підтримують на високому рівні навіть без заміни каталізатора свіжим із перериванням реакції амоксидування, завдяки чому виробництво акрилонітрилу або метакрилонітрилу шляхом амоксидування пропану або ізобутану можна стабільно здійснювати протягом тривалого періоду часу з підтримкою високого виходу акрилонітрилу або метакрилонітрилу.

PROCESS AND APPARATUS FOR INTRODUCTION INTO CONTACT OF GASEOUS REAGENT AND LIQUID IN THE PRESENCE OF FLUIDIZED CATALYST

OXIDATION PROCESS IN FLUIDISED BED REACTOR, METHODS FOR THE PREPARATION OF VINYLACETATE, ETHYLENE AND ACETIC ACID

ВПУСКНОЕ СОПЛО ДЛЯ ПОДАЧИ КИСЛОТЫ

Предложено впускное сопло, которое содержит продолговатый цилиндр. Продолговатый цилиндр содержит полимер, проходящий между первым концом и вторым концом продолговатого цилиндра. Первый конец определяет впускное отверстие, а второй конец определяет выпускное отверстие. Канал находится в жидкостной связи с впускным отверстием и выпускным отверстием. По меньшей мере часть продолговатого цилиндра заключена в металлическую оболочку. Продолговатый цилиндр можно использовать в комбинации с патрубком, который подает технологический поток. Сопло сконструировано для подачи кислоты через выпускное отверстие и в патрубок в таком же направлении, что и направление технологического потока, протекающего по патрубку.

Method for preparing aminoacetonitrile and N,N-dimethylcyanamide from methane and ammonia gas through plasma synthesis

The invention relates to a method for synthesizing aminoacetonitrile and N,N-dimethylcyanamide by using methane and ammonia gas as raw materials, which is characterized by comprising the following steps: performing non-equilibrium plasma activation on methane and ammonia gas to generate carbon-containing and nitrogen-containing free radical active species, and performing one-step spontaneous reaction on the species to generate the target products. The method belongs to a one-step direct synthesis process, has the advantages of simplicity and cheap raw materials, does not use solvent and causes no pollution. Besides, the method is also applicable to synthesis of organic compounds from various C1-5 alkane, olefin and alkyne and ammonia gas. Moreover, in addition to the aminoacetonitrile and N,N-dimethylcyanamide, acetonitrile, ethylenediamine, 4,5-dihydro-5-methylpyrazole, aminopyrazole and other products can be also obtained through the plasma synthesis method.

Method for preparing antimony-containing catalyst used for ammoxidation of alkane

Apparatus for removing substances from catalyst surface

Provided is an apparatus for efficiently removing substances (catalyst surface substances) exuding from and/or attached to a catalyst surface. An apparatus which is provided with a main body and which removes catalyst surface substances from the surface of a catalyst by bringing the catalyst stored in the main body into contact with airflow, wherein the length of the airflow in the airflow direction is 55 mm or greater, and the average flow velocity of the airflow is 80 ms to 500 ms when calculated as a linear velocity at 15 DEG C and 1 atm.

Arsenic promoted vanadium-antimony-oxide based catalyst for selective paraffin ammoxidation

Method for producing silica-supported catalyst, and method for producing unsaturated carboxylic acid or unsaturated nitrile

Oxide catalyst and method of manufacturing the same, and method for producing an unsaturated nitrile

Improved (amm)oxidation method for conversion of lower alkane

METHOD FOR AMMOXIDATION OF SATURATED HYDROCARBONS.

Preparation of acrylonitrile, comprises ammoxidation reaction of glycerol in gas phase

La présente invention concerne une nouvelle voie de synthèse de l'acrylonitrile et a plus particulièrement pour objet un procédé de fabrication d'acrylonitrile par réaction d'ammoxydation de glycérol en phase gaz. Le procédé peut être mis en oeuvre en une seule étape, ou le glycérol peut être soumis préalablement à une étape de déshydratation.

METHODS FOR PRODUCING UNSATURATED NITRILES

소성 장치, 산화물 촉매의 제조 방법, 및, 불포화산 또는 불포화니트릴의 제조 방법

... 양단에 개구단을 갖는 소성관과, 상기 소성관의 상기 개구단을 각각 덮는 한쌍의 후드와, 상기 소성관과 상기 후드 사이의 간극을 시일하는 한쌍의 링을 갖는 소성 장치로서, 상기 링은 상기 소성관의 외표면에 직접 또는 간접적으로 고정되고, 상기 링의 상기 후드와의 접촉면측에, 홈부가 상기 링의 둘레 방향을 따라 마련되며, 상기 후드와 상기 홈부에 의해 둘러싸인 시일실이 형성되어 있고, 상기 홈부의 양측이 상기 후드와 접촉한 상태로 상기 소성관과 상기 링이 함께 상기 소성관의 둘레 방향으로 회전하도록 되어 있는 소성 장치.

PREPARATION METHOD OF UNSATURATED CARBOXYLIC ACID OR UNSATURATED NITRILE BY VAPOR OXIDATION OF CORRESPONDING C3-C5 ALKANE, C3-C5 ALKENE AND THEIR MIXTURE

PURPOSE: Provided is a method for preparing an unsaturated carboxylic acid or an unsaturated nitrile by the vapor oxidation of the corresponding C3-C5 alkane, C3-C5 alkene and their mixture with improved conversion rate and yield. CONSTITUTION: The method comprises the steps of separating at least one intermediate efflux stream into at least one intermediate product stream comprising oxidation product selected from the group consisting of at least unsaturated carboxylic acid and unsaturated nitrile and an intermediate supply stream comprising a starting material selected from the group consisting of an unreactive C3-C5 alkane, an unreactive C3-C5 alkene and their mixture; supplying the intermediate supply stream to the subsequent reaction zone; and supplying an oxygen-containing gas to the subsequent reaction zone, wherein there are at least two continuously arranged reaction zones, the reaction zones contain at least one catalyst for vapor oxidation, the first efflux stream is discharged ...

METHOD FOR PREPARING UNSATURATED CARBOXYLIC ACIDS FROM A MIXTURE OF ALKENES WITH ALKANES THROUGH VAPOR PHASE CATALYTIC OXIDATION

PURPOSE: A method for preparing unsaturated carboxylic acids is provided to obtain a desired product with a significantly increased yield by converting a mixture of alkanes with alkenes into the desired product under increased catalytic activity. CONSTITUTION: A method for preparing unsaturated carboxylic acids comprises a step of carrying out single-pass vapor phase catalytic oxidation of a mixture of alkenes with alkanes in the presence of a catalyst comprising mixed metal oxides represented by the formula of AaMmNnXxOo, wherein A is at least one element selected from Mb and W; N is at least one element selected from Te and Se; X is at least one element selected from Nb, Ta, Ti, Al, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ni, Pt, Bi, B, In, As, Ge, Sn, Li, Na, K. Cs, Fr, Be, Mg, Ca, St, Ba, Hf, Pb, P, Pm, Eu, Ga, Dy, Ho, Eb, Tm, Yb, Lu, Au, Ag, Pa, G, Zn, Pr, Rh, Ir, Nd, Y, Sa and Tb; and when a=1, m=0.01-1.0, n=0.01-1.0, x=0.01-1.0 and o depends on the oxidation states of the other elements, wherein ...

PARAFFIN AMMOXIDATION BY USING CATALYSTS BASED ON VANADIUM-ANTIMONY OXIDE WITH HALIDE PROMOTERS

The method for the ammoxidation of C3 to C5 paraffin hydrocarbon to its respective-unsaturated nitrile includes the reaction between C3 to C5 paraffin hydrocarbon and ammonia and oxygen in a reactor with fluidized bed at temperatures from 250 to 600 deg.C in the presence of catalyst having the following empiric formula VvSlmAaDdOx where A whenever present means tin and/or titanium; D when present means one or more of the following elements: lithium, magnesium, sodium, calcium, strontium, barium, cobalt, iron, chromium, gallium, nickel, zinc, germanium, niobium, zirconium, molybdenum, tungsten, copper, tellurium, tantalum, selenium, bismuth, cerium, indium, arsenic, boron, aluminium, phosphorus and manganese, and V means 1, m has the value of 0.5-75, a - from 0 to 25, d - from 0 to 25, x is determined by the degree of oxidation of the cations present. The method can also be effected in the presence of insignificant amount of a compound containing halogen, preferably included in the following ...

IMPROVED CATALYST FOR THE MANUFACTURE OF ACRYLONITRILE

A catalyst composition comprising a complex of catalytic oxides or iron, bismuth, molybdenum, cobalt, cerium, antimony, at least one of nickel or magnesium, and at least one of lithium, sodium, potassium, rubidium, or thallium, and characterized by the following empirical formula: AaBbCcFedBieCofCegSbhMonOx wherein A is at least one of Cr, P, Sn, Te, B, Ge, Zn, Mn, Ca, W or mixtures thereof, B is at least one of Li, Na, K, Rb, Cs, Ti, or mixture thereof, C is at least one of Ni, Mg or mixture thereof, a is 0 to 4.0, b is 0.01 to 1.5, c is 1.0 to 10.0, d is 0.1 to 5.0, e is 0.1 to 2.0, f is 0.1 to 10.0, g is 0.1 to 2.0. h is 0.1 to 2.0, m is 12.0 to 18.00 and x is a number determined by the valence requirements of the other elements present. The catalyst is useful in processes for the ammoxidation of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile and mixture thereof, respectively. 9 claims ...

Catalyst and process for producing nitriles

COMPOSITE OXIDE CATALYST AND METHOD FOR PRODUCING SAME

A method for producing a composite oxide catalyst that contains a composite oxide represented by the compositional formula Mo1VaSbbNbcWdZeOn (in the formula, component Z denotes an element such as La, Ce, Pr, Yb, Y, Sc, Sr or Ba, the values of a, b, c, d, e and n are such that 0.1 ≤ a ≤ 0.4, 0.1 ≤ b ≤ 0.4, 0.01 ≤ c ≤ 0.3, 0 ≤ d ≤ 0.2, 0 ≤ e ≤ 0.1, and the a/b and a/c atomic ratios are such that 0.85 ≤ a/b < 1.0 and 1.4 < a/c < 2.3), wherein the production method includes the following steps: a step of preparing a specific raw material preparation that contains Mo, V, Sb, Nb, W and Z; a step of drying the raw material preparation so as to obtain a dried powder; a step of subjecting the dried powder to preliminary firing so as to obtain a preliminarily fired body; a step of subjecting the preliminarily fired body to main firing so as to obtain a fired body having protrusions on the surface of particles; and a step of removing the protrusions by means of an air stream. The reduction rate of ...

METHOD FOR PRODUCING OXIDE CATALYST, AND METHOD FOR PRODUCING UNSATURATED NITRILE

The present invention provides a method for producing a Mo-, V-, Sb-, and Nb-containing oxide catalyst used in a vapor-phase-contact oxidation reaction or vapor-phase-contact ammoxidation reaction of propane or isobutane, wherein the method comprises: a preparation step for preparing a first aqueous mixture that contains Mo, V, and Sb; a mixing step for mixing the first aqueous mixture, a silica-sol-containing carrier raw material, and an Nb raw material to obtain a second aqueous mixture; a drying step for drying the second aqueous mixture to obtain a dry powder; and a firing step for firing the dry powder to obtain the oxide catalyst; the carrier raw material having a silica sol content, expressed in terms of SiO2 and with respect to the total amount of the carrier raw material, of 25% by mass or more, the silica sol having an average primary particle diameter of 3.0 nm or more and less than 11 nm, and containing 55% or more of silica sol particles that have an average primary particle ...

IMPROVED PROCESS FOR PREPARING ACRYLONITRILE

A method includes reacting, at a pressure of 140 kPa (absolute) or less and a linear velocity of 0.5 to 1.2 meters/second and in the presence of a catalyst, ammonia, oxygen, and a hydrocarbon selected from the group consisting of propane, propylene and isobutylene, and combinations thereof, to provide a reactor effluent stream that includes acrylonitrile. The method includes quenching the reactor effluent stream with a first aqueous stream to provide a quenched stream that includes acrylonitrile. The method includes compressing the quenched stream to provide an effluent compressor stream comprising acrylonitrile, and conveying, at a second pressure, the effluent compressor stream to an absorber. The method includes, in the absorber, absorbing acrylonitrile in a second aqueous stream to provide a rich water comprising acrylonitrile, wherein the absorbing is performed at a pressure greater than the first pressure.

PROCESSES AND SYSTEMS FOR USING SILICA PARTICLES IN FLUID BED REACTOR

The present disclosure relates to fluid bed processes that utilize silica particles as a fluidization aid. The process comprises reacting one or more reactants in a reactor comprising a fluid bed to form a product. The fluid bed comprises a catalyst composition comprising a catalyst and an inert additive composition comprising silica particles from 0.5 wt% to 30 wt%, based on the total weight of the catalyst composition. The silica particles are discrete, inert particles that are mixed with the catalyst in the fluid bed.

METHOD FOR THE PREPARATION OF VANADIUM-ANTIMONY-OXIDE BASED OXIDATION AND AMMOXIDATION CATALYSTS USING NON-AQUEOUS MEDIA

Vanadium antimony oxide catalysts useful for the selective oxidation and ammoxidation of paraffins, olefins, and aromatic compounds are manufactured in a process comprising (i) forming a catalyst precursor slurry comprising a vanadium containing compound and an antimony containing compound in a liquid solvent medium which comprises an organic solvent, and (ii) recovering a vanadium antimony oxide from the slurry by drying the slurry in order to remove water and organic solvent.

VANADIUM-CONTAINING CATALYST, PROCESS FOR THE PRODUCTION THEREOF, AND USE THEREOF

A vanadium-containing catalyst produced by using polyvanadic acid as the vanadium source. Such a catalyst can be produced by mixing a polyvanadic acid sol prepared by subjecting an aqueous solution of a metavanadate salt to ion exchange with a proton-form cation-exchange resin and polycondensation with the catalyst-constituting components other than vanadium or precursors thereof, and drying and/or firing the obtained mixture. This catalyst exhibits enough catalytic activity even under mild reaction conditions and can suitably be used in the synthesis of phthalic anhydride by partial oxidation of o-xylene, that of benzaldehyde by partial oxidation of toluene, that of benzoic acid by partial oxidation of toluene, that of anisaldehyde by partial oxidation of p-methoxytoluene, that of propylene by oxidative dehydrogenation of propane, that of isobutene by oxidative dehydrogenation of isobutane, that of methyl formate by oxidative dehydrogenation of methanol, that of acrylonitrile by ammoxidation ...

Process for producing molybdenum bismuth-containing metal oxide catalyst

A process for producing a molybdenum bismuth-containing metal oxide catalyst comprising: mixing (I) a metal element-containing slurry which contains molybdenum and at least one metal element selected from the group consisting of Fe, Ni, Co, Mg, Cr, Mn, Zn, Pb, La and Ce and which has a pH of 6 or above with (II) a bismuth compound, a solution thereof or a slurry thereof; and then drying and calcining the mixture obtained.

Catalyst for ammoxidation of paraffins

Disclosed is a process for the ammoxidation of paraffins having 3-5 C atoms using a complex metal oxide catalyst having the ingredients and the proportions which are represented by the following empirical formula: VSbmPnAaBbCcTtOx where A is one or more of W, Wn, Mo, B and Ge; B is one or more of Fe, Co, Ni, Cr, Mn, Cu, Zn, Se, Te, Pb and As; C is one or more of an alkali metal and Tl T is one or more of Ca, Sr and Ba and where m is greater than 1 and up to 10; n is greater than zero and up to 10, a is 0-10; b is 0-3; c is 0-1; t is 0-1; a is equal to or less than m; b is equal to or less than m; n is equal to or less than m; and wherein the antimony has an average valency higher than +3 and the vanadium has an average valency lower than +5, and the catalyst and how to make the catalyst.

Process for producing nitriles

A process for producing a nitrile, which comprises subjecting an alkane and ammonia in the gaseous state to catalytic oxidation in the presence of a catalyst which satisfies the following conditions of (1) and (2): (1) the catalyst is represented by the empirical formula: MoaVbTecXxOn (1) wherein X is at least one element selected from the group consisting of Nb, Ta, W, Ti, Al, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ni, Pd, Pt, Sb, Bi, B and Ce, -when a = 1,-b = 0.01 to 1.0,-c = 0.01 to 1.0,-x = 0.01 to 1.0,- and n is a number such that the total valency of the metal elements is satisfied; and (2) the catalyst has X-ray diffraction peaks at the following angles of 2(theta) in its X-ray diffraction pattern: -1 Diffraction angles of 2(theta) ( degrees)-22.1 +- 0.3-28.2 +- 0.3-36.2 +- 0.3-45.2 +- 0.3-50.0 +- 0.3.- ...

Amelioration of ammonia breakthrough in an alkane ammoxidation process

The invention is a method for the reduction of ammonia breakthrough during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propane and isobutane; ammonia and an oxygen-containing gas into a lower portion of a fluid-bed reactor containing an ammoxidation catalyst to react in the presence of said catalyst to produce acrylonitrile. The method comprises introducing into the reactor at least one C2 to C5 olefin which will react with at least a portion of the unreacted ammonia and oxygen present in the reactor to substantially reduce the amount of ammonia present in the reactor effluent exiting the reactor.

Oxide catalyst for oxidation or ammoxidation

Disclosed is an oxide catalyst for use in catalytic oxidation or ammoxidation of propane or isobutane in the gaseous phase, which comprises a composition represented by the Mo1VaSbbNbcZdOn (wherein: Z is at least one element selected from the group consisting of tungsten, chromium, titanium, aluminum, tantalum, zirconium, hafnium, manganese, iron, ruthenium, cobalt, rhodium, nickel, palladium, platinum, zinc, boron, indium, germanium, tin, lead, bismuth, yttrium, gallium, rare earth elements and alkaline earth metals: and a, b, c, d, and n are, respectively, the atomic ratios of V, Sb, Nb, Z and O, relative to Mo), wherein 0.1<=a<0.4, 0.1 Подробнее

NOx treated mixed metal oxide catalyst

A catalyst comprising a mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated nitrile.

Catalyst for the manufacture of acrylonitrile

A catalyst comprising a complex of catalytic oxides comprising potassium, cesium, cerium, chromium, cobalt, nickel, iron, bismuth, molybdenum, wherein the relative ratios of these elements is represented by the following general formula A_aK_bCs_cCe_dCr_eCo_fNi_gX_hFe_iBi_jMo₁₂O_x wherein A is Rb, Na, Li, Tl, or mixtures thereof, X is P, Sb, Te, B, Ge, W, Ca, Mg, a rare earth element, or mixtures thereof, a is 0 to about 1, b is about 0.01 to about 1, c is about 0.01 to about 1, d is about 0.01 to about 3, e is about 0.01 to about 2, f is about 0.01 to about 10, g is about 0.1 to about 10, h is 0 to about 4, i is about 0.1 to about 4, j is about 0.05 to about 4, x is a number determined by the valence requirements of the other elements present, and ...

COOLING COIL DESIGN FOR OXIDATION OR AMMOXIDATION REACTORS

COOLING COIL DESIGN FOR OXIDATION OR AMMOXIDATION REACTORS

COOLING COIL DESIGN FOR OXIDATION OR AMMOXIDATION REACTORS

SULFOXIDE-BASED SURFACTANTS

The present invention provides sulfoxide compounds comprising hydrophobic ester or amide moieties such that the compounds have surfactant properties. Also provided are methods for using the sulfoxide compounds or mixtures of the sulfoxide compounds in a variety of applications. 2. The compound of claim 1 , wherein Ris alkyl; Ris alkyl claim 1 , acyl claim 1 , (CHCHO)H claim 1 , (CHCH(CH)O)H claim 1 , or a combination of (CHCHO)H and (CHCH(CH)O)H; p is an integer of 2 or greater; and Ris Cto Calkyl.3. The compound of claim 2 , wherein n is 2; Ris methyl; Ris NHor NHR; and Ris Cto Calkyl.5. The compound of claim 4 , wherein Ris alkyl; Ris hydrogen claim 4 , alkyl claim 4 , acyl claim 4 , (CHCHO)H claim 4 , (CHCH(CH)O)H claim 4 , or a combination of (CHCHO)H and (CHCH(CH)O)H; p is an integer of 2 or greater; and Ris Cto Calkyl.6. The compound of claim 5 , wherein n is 2; Ris methyl; and Ris Cto Calkyl.7. The compound of claim 1 , wherein the compound has a critical micelle concentration (CMC) in water at 25° C. and atmospheric pressure.8. The compound of claim 1 , wherein the compound is used in commercial or residential laundry products claim 1 , industrial or household cleaning products claim 1 , floor polishing products claim 1 , personal care or cosmetic products claim 1 , textile processing claim 1 , metal processing claim 1 , paper processing claim 1 , agricultural applications claim 1 , latex production claim 1 , paper de-inking claim 1 , or crude oil drilling applications.10. The compound of claim 9 , wherein Ris alkyl; Ris hydrogen claim 9 , alkyl claim 9 , acyl claim 9 , (CHCHO)H claim 9 , (CHCH(CH)O)H claim 9 , or a combination of (CHCHO)H and (CHCH(CH)O)H; p is an integer of 2 or greater; and Ris Cto Calkyl.11. The compound of claim 10 , wherein n is 2 claim 10 , k is 1 claim 10 , 2 claim 10 , 3 claim 10 , or 4; Ris methyl; Ris hydrogen; Ris Cto Calkyl; and W and X are oxygen.12. The compound of claim 9 , wherein the compound has a critical micelle ...

APPARATUS AND METHOD FOR PRODUCING CATALYST, AND METHOD FOR PRODUCING UNSATURATED ACID OR UNSATURATED NITRILE

An apparatus for producing a catalyst comprising a tank configured to prepare an aqueous mixed solution containing a Mo compound, a V compound and a Nb compound, a dryer configured to spray-dry the aqueous mixed solution, and a pipe for connecting the tank with the dryer so that the aqueous mixed solution can be supplied from the tank to the dryer, wherein a heater configured to heat the aqueous mixed solution is provided in the tank and/or the pipe, and a filter configured to filtrate the aqueous mixed solution is provided in the pipe. 1. An apparatus for producing a catalyst , comprising a tank configured to prepare an aqueous mixed solution containing a Mo compound , a V compound and a Nb compound , a dryer configured to spray-dry the aqueous mixed solution , and a pipe for connecting the tank with the dryer so that the aqueous mixed solution can be supplied from the tank to the dryer , whereina heater configured to heat the aqueous mixed solution is provided in the tank and/or the pipe, and a filter configured to filtrate the aqueous mixed solution is provided in the pipe.2. The apparatus for producing a catalyst according to claim 1 , wherein at least a part of an inner surface of the tank and/or an inner surface of the pipe consist of a fluorocarbon resin.3. The apparatus for producing a catalyst according to claim 1 , wherein a cooler configured to cool the aqueous mixed solution is provided in the tank.4. The apparatus for producing a catalyst according to claim 3 , wherein at least a part of a region of the heater and/or the cooler provided in the tank claim 3 , the region being allowed to come into contact with the aqueous mixed solution claim 3 , consist of a fluorocarbon resin.5. The apparatus for producing a catalyst according to claim 1 , comprising claim 1 , inside the tank claim 1 , a washer configured to wash an inner surface of the tank.6. The apparatus for producing a catalyst according to claim 5 , wherein the washer is configured to spray and/or ...

PROCESS FOR PRODUCING GEOMETRIC SHAPED CATALYST BODIES

A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide of stoichiometry 1. (canceled)3. A catalyst obtained by grinding the shaped catalyst body of .4. A process for heterogeneously catalyzed partial gas phase oxidation of an alkane claim 2 , alkanol claim 2 , alkanal claim 2 , alkene claim 2 , alkenal claim 2 , or any mixture thereof claim 2 , which comprises from 3 to 6 carbon atoms over a catalyst bed claim 2 , wherein the catalyst bed comprises the shaped catalyst body of .5. The process of claim 4 , which is a process for heterogeneously catalyzed partial gas phase oxidation of propene to acrolein.6. The process of claim 4 , which is a process for heterogeneously catalyzed partial gas phase oxidation of isobutene to methacrolein.7. The process of claim 4 , which is a process for ammoxidation of propene to acrylonitrile or a process for ammoxidation of isobutene to methacrylonitrile.8. The shaped catalyst body of claim 2 , wherein 1500≧F≧1150.9. The shaped catalyst body of claim 2 , wherein a is 0.5 to 1.10. The shaped catalyst body of claim 2 , wherein 2 μm≦d≦3 μm.11. The shaped catalyst body of claim 2 , wherein 130 μm≧d≧50 μm.12. The shaped catalyst body of claim 2 , wherein dfor each of the sources is ≦0.2 μm.13. The shaped catalyst body of claim 2 , wherein Zis Co.14. The shaped catalyst body of claim 2 , wherein Zis K claim 2 , Cs claim 2 , Sr claim 2 , or any mixture thereof.15. The shaped catalyst body of claim 2 , wherein Zis Si.16. The shaped catalyst body of claim 2 , wherein b is 1 to 2.5.17. The shaped catalyst body of claim 2 , wherein c is 4 to 7.18. The shaped catalyst body of claim 2 , wherein d is 0.05 to 0.5.19. The shaped catalyst body of claim 2 , wherein e is 1 to 4.20. The shaped catalyst body of claim 2 , wherein g is 0.5 to 3.21. The shaped catalyst body of claim 2 , wherein the finely divided mixed oxide BiWOis the mixed oxide BiWO. This application is a Divisional of U.S. patent ...

CATALYST FOR ACRYLONITRILE PRODUCTION AND METHOD FOR PRODUCING ACRYLONITRILE

A catalyst for acrylonitrile production, which is produced by the vapor phase contact ammoxidation of propylene by molecular oxygen and ammonia, and a method for producing acrylonitrile using the catalyst. 1. A catalyst represented by General Formula:{'br': None, 'sub': a', 'b', 'c', 'd', 'e', 'f', 'g', 'x', 'y', 'z', 'h', '2', 'i, 'FeSbCDTeCoGXYZO(SiO),'} Fe is iron;', 'Sb is antimony;', 'Te is tellurium;', 'Co is cobalt;', 'C is at least one kind of element selected from the group consisting of copper and nickel;', 'D is at least one kind of element selected from the group consisting of molybdenum, tungsten, and vanadium;', 'G is at least one kind of element selected from the group consisting of phosphorous and boron;', 'X is at least one kind of element selected from the group consisting of tin, titanium, zirconium, niobium, tantalum, ruthenium, palladium, silver, aluminum, gallium, indium, thallium, germanium, arsenic, bismuth, lanthanum, cerium, praseodymium, neodymium, and samarium;', 'Y is at least one kind of element selected from the group consisting of magnesium, calcium, strontium, barium, manganese, zinc, and lead;', 'Z is at least one kind of element selected from the group consisting of lithium, sodium, potassium, rubidium, and cesium;', 'O is oxygen;', {'sub': '2', '(SiO) represents silica;'}, 'a, b, c, d, e, f, g, x, y, z, h, and i represent the atomic ratios of respective elements, and in the case of silica, the atomic ratio of silicon;', 'a is 10; b is 5 to 60; c is 1 to 8; d is 0.1 to 4; e is 0.1 to 5; f is 0.1 to 4.5; g is 0.1 to 5; x is 0 to 5; y is 0 to 5; z is 0 to 2; i is 10 to 200; h is the atomic ratio of oxygen that is necessary to meet the atomic values of represent elements except silicon; and', '(a+f)/b ranges from 0.50 to 0.60., 'wherein'}2. The catalyst according to claim 1 , that comprises iron antimonate in a crystal phase.3. A method for producing acrylonitrile comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'reacting ...

System and Method for Producing Propylene and Acrylonitrile from Carbon Dioxide and Ethylene

A system and method for efficiently and sustainably producing propylene and acrylonitrile is disclosed which utilizes biodegradable materials, combustible materials that produce carbon dioxide and/or carbon monoxide. According to one embodiment of the invention, a source of carbon dioxide and/or carbon monoxide is utilized and the carbon dioxide and/or carbon monoxide is electrochemically reduced to ethylene. Dimerization is applied to separate the ethylene to produce 1-butene; which is isomerized to produce 2-butene. The 2-butene is metathesized to produce propylene. The propylene may then be subject to ammoxidation as desired in order to produce acrylonitrile. 1. A method for the production of propylene , comprising the steps of:utilizing a source of carbon comprising carbon dioxide and/or carbon monoxide;converting through electrolytic reduction or electrochemical reduction said carbon dioxide and/or carbon monoxide to ethylene;dimerizing said ethylene by a catalytic process to produce 1-butene;using a synthesis process to isomerize said 1-butene to produce 2-butene and to metathesize said 2-butene to produce propylene.2. The method of claim 1 , wherein one or more of the conversion claim 1 , isomerization claim 1 , and metathesis steps are performed in a one-pot synthesis.3. The method of claim 1 , wherein ethylene not generated by the conversion of carbon dioxide and/or carbon monoxide is input from another source.4. The method of claim 1 , wherein converting said carbon dioxide and/or carbon monoxide comprises electrochemical reduction of said carbon dioxide and/or carbon monoxide.5. The method of claim 1 , wherein converting said carbon dioxide and/or carbon monoxide utilizes renewable sources of electricity.6. The method of claim 1 , further comprising the step of anaerobic digestion of biodegradable materials claim 1 , which produces said carbon dioxide and methane.7. The method of claim 6 , wherein methane generated during anaerobic digestion is used as a ...

PROCESS FOR THE PRODUCTION OF NITRILES USING A CATALYST BASED ON ANTIMONY AND IRON

A compound of the formula SbFeO(1) in which x varies from 0.4 to 1 inclusive and y varies from 1.6 to 4 inclusive, may be used as a catalyst for catalysing the ammoxidation reaction of an alcohol of following formula (II) CH═C(R)—CH—OH (II) in which Rrepresents a hydrogen atom or a methyl radical, to give nitrile of following formula (III) CH═C(R)—C≡N (III) in which Rhas the same meaning as in above formula (ii), the said reaction being carried out in the gas phase, the said gas phase comprising at least oxygen and ammonia. The present invention also relates to the process for the ammoxidation of an alcohol of formula (II) employing a compound of formula (I) as catalyst. 1. A method for catalysing the ammoxidation reaction of an alcohol , said method comprising the steps of: {'br': None, 'sub': x', '1', 'y, 'SbFeO\u2003\u2003(I)'}, 'obtaining a compound having the formula (I)in which x varies from 0.4 to 1 inclusive and y varies from 1.6 to 4 inclusive,{'sub': 2', '2', '2, 'sup': 1', '1', '1', '1, 'catalysing the ammoxidation reaction of an alcohol using said compound, where said alcohol has the following formula (II) CH═C(R)—CH—OH (II), in which Rrepresents a hydrogen atom or a methyl radical, to give a nitrile of following formula (III) CH═C(R)—C≡N (III), in which Rhas the same meaning as in the above formula (II),'}wherein said reaction is carried out in the gas phase, the said gas phase having at least oxygen and ammonia.2. Process for the production of a nitrile from an alcohol in he presence of a catalyst , said method comprising: {'br': None, 'sub': 2', '2, 'sup': '1', 'CH═C(R)—CH—OH\u2003\u2003(II)'}, 'a stage of ammoxidation of an alcohol of following formula (II){'sup': '1', 'in which Rrepresents a hydrogen atom or a methyl radical,'} {'br': None, 'sub': '2', 'sup': '1', 'CH═C(R)—C≡N\u2003\u2003(III)'}, 'to result in a nitrile of following formula (III){'sup': '1', 'in which Rhas the same meaning as in the above formula (II),'} {'br': None, 'sub': x', '1', ...

METHOD FOR PRODUCING ACRYLONITRILE

The invention relates to a method for producing acrylonitrile which includes a vapor phase catalytic ammoxidation process of performing vapor phase catalytic ammoxidation by bringing a source gas containing propylene, molecular oxygen, and ammonia into contact with a fluidized bed catalyst to obtain acrylonitrile. The method is characterized in that the fluidized bed catalyst consists of particles containing Fe, Sb, and Te, and the vapor phase catalytic ammoxidation process is performed while maintaining a B/A in the range of 2.0 to 5.0, where A denotes an atomic ratio of Te/Sb in a bulk composition of the fluidized bed catalyst and B denotes an atomic ratio of Te/Sb in a surface composition of the particles of the fluidized bed catalyst. According to the method for producing acrylonitrile of the invention, it is possible to stably maintain a high acrylonitrile yield over a long period of time. 1. A method for producing acrylonitrile , the method comprising a vapor phase catalytic ammoxidation process of performing a vapor phase catalytic ammoxidation by bringing a source gas containing propylene , molecular oxygen , and ammonia into contact with a fluidized bed catalyst to obtain acrylonitrile ,wherein the fluidized bed catalyst consists of particles containing Fe, Sb, and Te, andthe vapor phase catalytic ammoxidation process is performed while maintaining a B/A in the range of 2.0 to 5.0, where A denotes an atomic ratio of Te/Sb in a bulk composition of the fluidized bed catalyst and B denotes an atomic ratio of Te/Sb in a surface composition of the particles of the fluidized bed catalyst.2. The method for producing acrylonitrile according to claim 1 , wherein the bulk composition of the fluidized bed catalyst is represented by the following Formula (1).{'br': None, 'sub': 10', 'a', 'b', 'c', 'd', 'e', 'x', '2', 'y, 'FeSbATeDEO.(SiO)\u2003\u2003(1)'}{'sub': '2', '(in Formula (1), Fe, Sb, Te, O, and SiOrepresent iron, antimony, tellurium, oxygen, and silica, ...

METHOD FOR PRODUCING A CATALYST FOR THE PARTIAL OXIDATION/AMMOXIDATION OF OLEFINS

The present invention relates to a method for producing a supported catalyst, a catalyst which is obtainable using the method, and use thereof for the partial oxidation or ammoxidation of olefins, in particular for the oxidation of propene to acrolein, of isobutene to methacrolein, and/or the ammoxidation of propene to acrylonitrile. The method according to the invention includes the following steps: a) providing a solution in which precursor compounds of the catalytically active component are essentially completely dissolved in a suitable solvent; b) bringing the solution obtained in step a) into contact with a (chemically) inert, porous support having a specific surface of 1 to 500 m/g; c) heat treatment of the material obtained in step b), in which the precursor compounds of the catalytically active component are converted to their oxides. 1. Method for producing a catalyst which includes as the catalytically active component a compound having the general formula MoBiFeABCDO , where A stands for Ni and/or Co , B stands for one or more metals selected from Mg , Cr , Mn , Zn , Ce , and Ca and combinations thereof , C stands for W , and D stands for one or more alkali metals , where x stands for a number from 10 to 14 , y stands for a number from 0.1 to 5 , z stands for a number from 0.5 to 5 , a stands for a number from 1 to 10 , b stands for a number from 0.1 to 6 , c stands for a number from ≧0 to 2 , d stands for a number from 0.02 to 2 , and v is determined by the oxidation state of the elements , the method including the following steps:a) Providing a solution in which precursor compounds of the catalytically active component are essentially completely dissolved in a suitable solvent;{'sup': '2', 'b) Bringing the solution obtained in step a) into contact with a chemically inert, porous support having a specific surface of 1 to 500 m/g;'}c) Heat treatment of the material obtained in step b), in which the precursor compounds of the catalytically active component ...

System and Method for Producing Propylene and Acrylonitrile from Carbon Dioxide and Ethylene

A system and method for efficiently and sustainably producing propylene and acrylonitrile is disclosed which utilizes biodegradable materials, combustible materials that produce carbon dioxide and/or carbon monoxide. According to one embodiment of the invention, a source of carbon dioxide and/or carbon monoxide is utilized and the carbon dioxide and/or carbon monoxide is electrochemically reduced to ethylene. Dimerization is applied to separate the ethylene to produce 1-butene; which is isomerized to produce 2-butene. The 2-butene is metathesized to produce propylene. The propylene may then be subject to ammoxidation as desired in order to produce acrylonitrile. 1. A method for production of acrylonitrile , comprising the steps of:utilizing a source of carbon comprising carbon dioxide and/or carbon monoxide;converting said carbon dioxide and/or carbon monoxide to ethylene;dimerizing said ethylene to produce 1-butene;isomerizing said 1-butene to produce 2-butene;metathesizing said 2-butene to produce propylene; andproducing acrylonitrile by ammoxidation of said propylene.2. The method of claim 1 , wherein one or more of the conversion claim 1 , isomerization claim 1 , metathesis claim 1 , and ammoxidation steps are performed in a one-pot synthesis.3. The method of claim 1 , wherein ethylene not generated by the conversion of carbon dioxide and/or carbon monoxide is input from another source.4. The method of claim 1 , wherein converting said carbon dioxide and/or carbon monoxide comprises electrochemical reduction of said carbon dioxide and/or carbon monoxide.5. The method of claim 1 , wherein converting said carbon dioxide and/or carbon monoxide utilizes renewable sources of electricity.6. The method of claim 1 , further comprising the step of anaerobic digestion of biodegradable materials claim 1 , which produces said carbon dioxide and methane.7. The method of claim 6 , wherein methane generated during anaerobic digestion is used as a fuel source to power the other ...

METHOD FOR PRODUCING ACRYLONITRILE

The invention relates to a method for producing acrylonitrile which includes a vapor phase catalytic ammoxidation process of performing vapor phase catalytic ammoxidation by bringing a source gas containing propylene, molecular oxygen, and ammonia into contact with a fluidized bed catalyst to obtain acrylonitrile. The method is characterized in that the fluidized bed catalyst is a catalyst containing iron, antimony, and tellurium, and the vapor phase catalytic ammoxidation process is performed while maintaining an adsorbed amount of ammonia per specific surface area (m/g) of the fluidized bed catalyst in the range of 0.01 to 0.22 μmol/m. According to the method for producing acrylonitrile of the invention, it is possible to stably maintain a high acrylonitrile yield over a long period of time. 1. A method for producing acrylonitrile , the method comprising a vapor phase catalytic ammoxidation process of performing vapor phase catalytic ammoxidation by bringing a source gas containing propylene , molecular oxygen , and ammonia into contact with a fluidized bed catalyst to obtain acrylonitrile ,wherein the fluidized bed catalyst is a catalyst containing iron, antimony, and tellurium, and{'sup': 2', '2, 'the vapor phase catalytic ammoxidation process is performed while maintaining an adsorbed amount of ammonia per specific surface area (m/g) of the fluidized bed catalyst in the range of 0.01 to 0.22 μmol/m.'}2. The method for producing acrylonitrile according to claim 1 , wherein the fluidized bed catalyst is represented by the following Formula (1).{'br': None, 'sub': 10', 'a', 'b', 'c', 'd', 'e', 'x', '2', 'y, 'FeSbATeDEO.(SiO)\u2003\u2003(1)'}{'sub': '2', '(in Formula (1), Fe, Sb, Te, O, and SiOrepresent iron, antimony, tellurium, oxygen, and silica, respectively, A represents at least one kind of element selected from the group consisting of vanadium, molybdenum, and tungsten, D represents at least one kind of element selected from the group consisting of magnesium ...

SELECTIVE AMMOXIDATION CATALYSTS

A catalytic composition useful for the conversion of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile, and mixtures thereof. The catalytic composition comprises a complex of metal oxides comprising bismuth, molybdenum, iron, cerium and other promoters, wherein the ratio of bismuth to cerium ratio in the composition is greater than or equal to 0.45 and less than or equal to 1.5. 113-. (canceled)14. A process for the conversion of an olefin selected from the group consisting of propylene , isobutylene or mixtures thereof , to acrylonitrile , methacrylonitrile , and mixtures thereof , respectively , by reacting in the vapor phase at an elevated temperature and pressure said olefin with a molecular oxygen containing gas and ammonia in the presence of a catalyst wherein the relative ratios of the listed elements in said catalyst are represented by the following formula:{'br': None, 'sub': m', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'x, 'MoBiFeADEFGCeO'} D is at least one element selected from the group consisting of nickel, cobalt, manganese, zinc, magnesium, calcium, strontium, cadmium and barium;', 'E is at least one element selected from the group consisting of chromium, tungsten, boron, aluminum, gallium, indium, phosphorus, arsenic, antimony, vanadium and tellurium;', 'F is at least one element selected from the group consisting of lanthanum, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium thulium, ytterbium, lutetium, scandium, yttrium, titanium, zirconium, hafnium, niobium, tantalum, aluminum, gallium, indium, thallium, silicon, germanium and less than about 10 ppm lead;', 'G is at least one element selected from the group consisting of silver, gold, ruthenium, rhodium, palladium, osmium, iridium, platinum and mercury; and, 'wherein A is at least one element selected from the group consisting of sodium, potassium, rubidium and cesium; and'} ...

METHOD FOR PRODUCING ACRYLONITRILE

The invention relates to a method for producing acrylonitrile which includes a vapor phase catalytic ammoxidation process of performing vapor phase catalytic ammoxidation by bringing a source gas containing propylene, molecular oxygen, and ammonia into contact with a fluidized bed catalyst to obtain acrylonitrile. The method is characterized in that the fluidized bed catalyst is a catalyst containing molybdenum and bismuth and the vapor phase catalytic ammoxidation process is performed while maintaining an adsorbed amount of ammonia per specific surface area (m/g) of the fluidized bed catalyst in the range of 0.05 to 0.6 μmol/m. According to the method for producing acrylonitrile of the invention, it is possible to stably maintain a high acrylonitrile yield over a long period of time. 1. A method for producing acrylonitrile , the method comprisingperforming vapor phase catalytic ammoxidation by bringing a source gas comprising propylene, molecular oxygen, and ammonia into contact with a fluidized bed catalyst thereby obtaining acrylonitrile,wherein the fluidized bed catalyst comprises molybdenum and bismuth, and{'sup': 2', '2, 'the vapor phase catalytic ammoxidation is performed while maintaining an adsorbed amount of ammonia per specific surface area (m/g) of the fluidized bed catalyst in the range of from 0.05 to 0.6 μmol/m.'}2. The method for producing acrylonitrile according to claim 1 , wherein the fluidized bed catalyst is represented by Formula (1).{'br': None, 'sub': 12', 'a', 'b', 'c', 'd', 'e', 'f', 'x', '2', 'y, 'MoBiFeADEGO(SiO)\u2003\u2003(1)'}{'sub': '2', 'wherein in Formula (1), Mo, Bi, Fe, O, and SiOrepresent molybdenum, bismuth, iron, oxygen, and silica, respectively,'}A represents at least one element selected from the group consisting of nickel, cobalt, zinc, magnesium, manganese, and copper, vD represents at least one element selected from the group consisting of lanthanum, cerium, praseodymium, neodymium, and samarium,E represents at least one ...

Process for producing unsaturated nitrile

A process for producing unsaturated nitrile, using a fluidized bed reactor and comprising a reaction step of subjecting hydrocarbon to a vapor phase catalytic ammoxidation reaction in the presence of a catalyst to produce the corresponding unsaturated nitrile, wherein when an internal space of the reactor is divided into two spaces of an upper space occupying a space from an upper end of an inlet of a cyclone to an upper end of the internal space and a lower space occupying a space below the upper end of the inlet of the cyclone and ranging to a dispersion plate, a ratio of an existing amount of the catalyst in the upper space to an existing amount of the catalyst in the lower space is 0.05 to 0.45 in the reaction step.

AMMOXIDATION CATALYST WITH SELECTIVE CO-PRODUCT HCN PRODUCTION

A catalytic composition and process useful for the conversion of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile, hydrogen cyanide and acetonitrile and mixtures thereof, wherein the catalyst exhibiting increased selectivity to hydrogen cyanide compared to prior art catalysts. 1. A catalytic composition comprising a complex of metal oxides wherein the relative ratios of the listed elements in said catalyst are represented by the following formula:{'br': None, 'sub': m', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'n', 'q', 'x, 'MoBiFeADEFGCeCrQO'} D is at least one element selected from the group consisting of nickel, cobalt, manganese, zinc, magnesium, calcium, strontium, cadmium and barium;', 'E is at least one element selected from the group consisting of tungsten, boron, aluminum, gallium, indium, phosphorus, arsenic, antimony, vanadium and tellurium;', 'F is at least one element selected from the group consisting of lanthanum, europium, gadolinium, terbium, dysprosium, holmium, erbium thulium, ytterbium, lutetium, scandium, yttrium, titanium, zirconium, hafnium, niobium, tantalum, aluminum, gallium, indium, thallium, silicon lead and germanium;', 'G is at least one element selected from the group consisting of silver, gold, ruthenium, rhodium, palladium, osmium, iridium, platinum and mercury;', 'Q is at least one of samarium, praseodymium and neodymium; and, 'wherein A is at least one element selected from the group consisting of lithium, sodium, potassium, rubidium and cesium;'}a, b, c, d, e, f, g, h, n, m and x are, respectively, the atomic ratios of bismuth (Bi), iron (Fe), A, D, E, F, G, cerium (Ce), chromium (Cr), molybdenum (Mo) and oxygen (O), relative to “m” atoms of molybdenum (Mo), b is 0.1 to 7,', 'c is 0 to 5,', 'd is 0.1 to 12,', 'e is 0 to 5,', 'f is 0 to 5,', 'g is 0 to 0.2,', 'h is 0.01 to 5,', 'm is 10 to 15,', 'n is 0 to 5,', 'q is 0 to 2.476, and', 'x is the number of ...

AMMOXIDATION CATALYSTS CONTAINING SAMARIUM

A catalytic composition useful for the conversion of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile, and mixtures thereof. The catalytic composition comprises a complex of metal oxides comprising bismuth, molybdenum, iron, cerium, and at least one of samarium, praseodymium and neodymium. 2. The catalytic composition of claim 1 , wherein 0.01 Подробнее

METHOD FOR PRODUCING OXIDE CATALYST AND METHOD FOR PRODUCING UNSATURATED NITRILE

A method for producing an oxide catalyst containing Mo, V, Sb, and Nb, the method including: 1. A method for producing an oxide catalyst comprising Mo , V , Sb , and Nb , the method comprising: a sub-step (I) of preparing an aqueous mixed liquid (A) comprising Mo, V, and Sb,', 'a sub-step (II) of adding hydrogen peroxide to the aqueous mixed liquid (A), thereby facilitating oxidation of the aqueous mixed liquid (A) and obtaining an aqueous mixed liquid (A′), and', 'a sub-step (III) of mixing the aqueous mixed liquid (A′) and a Nb raw material liquid (B), thereby obtaining an aqueous mixed liquid (C);, 'a raw material preparation step comprising'}a drying step of drying the aqueous mixed liquid (C), thereby obtaining a dried powder; anda calcination step of calcining the dried powder under an inert gas atmosphere,wherein a time elapsed from addition of the hydrogen peroxide to the aqueous mixed liquid (A) to mixing the Nb raw material liquid (B) therewith is less than 5 minutes andthe aqueous mixed liquid (A′) before being subjected to the sub-step (III) has an oxidation-reduction potential of 150 to 350 mV.2. The method for producing the oxide catalyst according to claim 1 , wherein in the drying step claim 1 , the aqueous mixed liquid (C) has an oxidation-reduction potential of less than 450 mV.3. The method for producing the oxide catalyst according to claim 1 , wherein the oxide catalyst is represented by the following formula (1):{'br': None, 'sub': 1', 'a', 'b', 'c', 'd', 'e', 'n, 'MoVNbSbTZO\u2003\u2003(1)'}wherein T represents at least one element selected from Ti, W, Mn, and Bi; Z represents at least one element selected from La, Ce, Yb, and Y; a, b, c, d, and e represent atomic ratios of respective elements when an atomic ratio of Mo is 1, and are in a range of 0.05≤a≤0.3, 0.01≤b≤0.15, 0.05≤c≤0.3, 0≤d≤0.1, and 0≤e≤0.1 respectively; and n represents a value satisfying a balance of atomic valences.4. The method for producing the oxide catalyst according to ...

MIXED METAL OXIDE AMMOXIDATION CATALYSTS

A catalytic composition useful for the conversion of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile, and mixtures thereof. The catalytic composition comprises a complex of metal oxides comprising rubidium, bismuth, cerium, molybdenum, iron and other promoters, with a desirable composition. 1. A catalytic composition comprising a complex of metal oxides wherein the relative ratios of the listed elements in said catalyst are represented by the following formula:{'br': None, 'sub': m', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'n', 'x, 'MoBiFeADEFGCeRbO'} D is at least one element selected from the group consisting of nickel, cobalt, manganese, zinc, magnesium, calcium, strontium, cadmium and barium;', 'E is at least one element selected from the group consisting of chromium, tungsten, boron, aluminum, gallium, indium, phosphorus, arsenic, antimony, vanadium and tellurium;', 'F is at least one element selected from the group consisting of lanthanum, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium thulium, ytterbium, lutetium, scandium, yttrium, titanium, zirconium, hafnium, niobium, tantalum, aluminum, gallium, indium, thallium, silicon lead and germanium;', 'G is at least one element selected from the group consisting of silver, gold, ruthenium, rhodium, palladium, osmium, iridium, platinum and mercury; and, 'wherein A is at least one element selected from the group consisting of lithium, sodium, potassium, and cesium; and'} a is greater than 0, but less than or equal to 7,', 'b is 0.1 to 7,', 'c is greater than 0, but less than or equal to 5,', 'd is 0.1 to 12,', 'e is 0 to 5,', 'f is 0 to 5,', 'g is 0 to 0.2,', 'h is 0.01 to 5,', 'm is 10 to 15,', 'n is greater than 0, but less than or equal to 5,', 'x is the number of oxygen atoms required to satisfy the valence requirements of the other component elements present; and, 'a, b, c, d, e, f, g, ...

PROCESS FOR PRODUCING COMPOUND

A process for producing a compound by use of a fluidized bed reactor comprising an internal space having a catalyst housed in a fluidizable manner therein, a first feed port into which a starting material gas comprising a hydrocarbon is fed to the fluidized bed reactor, a second feed port into which an oxygen-containing gas comprising oxygen is fed to the fluidized bed reactor, and a discharge port into which a reaction product gas is discharged from the fluidized bed reactor, including a reaction step of subjecting the hydrocarbon to a vapor phase catalytic oxidation reaction or a vapor phase catalytic ammoxidation reaction in the presence of the catalyst in the internal space to produce the corresponding unsaturated acid or unsaturated nitrile, respectively, wherein in the reaction step, a linear velocity (m/sec) of the starting material gas at the first feed port is adjusted against a degree of abrasion resistance (%) of the catalyst so as to satisfy a prescribed relation between them. 1. A process for producing a compound by use of a fluidized bed reactor comprising an internal space having a catalyst housed in a fluidizable manner therein , a first feed port into which a starting material gas comprising a hydrocarbon is fed to the fluidized bed reactor , a second feed port into which an oxygen-containing gas comprising oxygen is fed to the fluidized bed reactor , and a discharge port into which a reaction product gas is discharged from the fluidized bed reactor ,comprising a reaction step of subjecting the hydrocarbon to a vapor phase catalytic oxidation reaction or a vapor phase catalytic ammoxidation reaction in the presence of the catalyst in the internal space to produce the corresponding unsaturated acid or unsaturated nitrile, respectively, whereinin the reaction step, a linear velocity (m/sec) of the starting material gas at the first feed port is adjusted against a degree of abrasion resistance (%) of the catalyst so as to satisfy the condition ...

COMPOSITE OXIDE CATALYST, METHOD FOR PRODUCING THE SAME, AND METHOD FOR PRODUCING UNSATURATED NITRILE

It is an object of the present invention to provide a composite oxide catalyst which can suppress the generation of COand CO and improve the yield of an unsaturated nitrile in a method for subjecting propane or isobutane to a vapor-phase catalytic ammoxidation reaction to produce a corresponding unsaturated nitrile, and a method for producing the composite oxide catalyst, and a method for producing an unsaturated nitrile using the composite oxide catalyst. A composite oxide catalyst used for a vapor-phase catalytic oxidation reaction or vapor-phase catalytic ammoxidation reaction of propane or isobutane, the composite oxide catalyst comprising a composite oxide represented by the following composition formula (1): 1. A composite oxide catalyst used for a vapor-phase catalytic oxidation reaction or vapor-phase catalytic ammoxidation reaction of propane or isobutane , the composite oxide catalyst comprising a composite oxide represented by the following composition formula (1):{'br': None, 'sub': 1', 'a', 'b', 'c', 'd', 'e', 'n, 'MoVSbNbWZO\u2003\u2003(1),'}wherein the component Z is one or more element selected from the group consisting of La, Ce, Pr, Yb, Y, Sc, Sr, and Ba; a, b, c, d, e, and n represent atomic ratios of the elements; and 0.1≦a<0.2, 0.15≦b≦0.5, 0.01≦c≦0.5, 0≦d≦0.4, 0≦e≦0.2, and 0.60 Подробнее

SYNTHETIC METHODS FOR THE PREPARATION OF PROPYLENE AMMOXIDATION CATALYSTS

The present disclosure relates generally to catalyst materials and processes for making and using them. More particularly, the present disclosure relates to molybdenum, bismuth and iron-containing metal oxide catalyst materials useful, for example, in the partial oxidation or ammoxidation of propylene or isobutylene, processes for making them, and processes for making acrolein, methacrolein, acrylonitrile, and methacrylonitrile using such catalysts. 2. The process of claim 1 , wherein each of the molybdenum oxide precursor claim 1 , the bismuth oxide precursor claim 1 , and the iron oxide precursor are essentially completely dissolved in the solvent.3. The process of claim 1 , wherein the catalyst material further comprises an inert carrier claim 1 , and wherein the inert carrier is combined with the metal oxide precursor fluid to provide a suspension or slurry of the inert carrier in the metal oxide precursor fluid.4. The process of claim 1 , wherein between about 0.01 wt % and about 20 wt % of one or more of (e.g. claim 1 , each of) the molybdenum oxide precursor claim 1 , the bismuth oxide precursor claim 1 , and the iron oxide precursor is not dissolved in the solvent.5. (canceled)6. The process of claim 1 , wherein less than about 15 wt % claim 1 , or less than about 10 wt % claim 1 , or less than about 7 wt % claim 1 , or less than about 5 wt % claim 1 , or less than about 2 wt % claim 1 , or less than about 1 wt % of one or more of (e.g. claim 1 , each of) the molybdenum oxide precursor claim 1 , the bismuth oxide precursor claim 1 , and the iron oxide precursor is not dissolved in the solvent.7. (canceled)8. The process of claim 1 , wherein the molybdenum oxide precursor is provided as a heptamolybdate.9. The process of claim 1 , wherein the solvent is an aqueous organic acid selected from glycolic acid claim 1 , acetic acid claim 1 , lactic acid and mixtures thereof claim 1 , at a concentration in the range of 45-90 wt %.10. (canceled)11. The process of ...

SYNTHETIC METHODS FOR THE PREPARATION OF PROPYLENE AMMOXIDATION CATALYSTS

The present disclosure relates generally to catalyst materials and processes for making and using them. More particularly, the present disclosure relates to molybdenum, bismuth and iron-containing metal oxide catalyst materials useful, for example, in the partial oxidation or ammoxidation of propylene or isobutylene, processes for making them, and processes for making acrolein, methacrolein, acrylonitrile, and methacrylonitrile using such catalysts. 2. The process of claim 1 , wherein between about 0.01 wt % and about 20 wt % of each of the molybdenum oxide precursor claim 1 , the bismuth oxide precursor claim 1 , and the iron oxide precursor is not dissolved in the solvent.3. The process of claim 2 , wherein between about 0.1 wt % and about 5 wt % of one or more of the molybdenum oxide precursor claim 2 , the bismuth oxide precursor claim 2 , and the iron oxide precursor is not dissolved in the solvent.4. (canceled)5. The process of claim 1 , wherein molybdenum oxide precursor is provided as a heptamolybdate.6. The process of claim 1 , wherein the solvent is an aqueous organic acid selected from glycolic acid claim 1 , acetic acid claim 1 , lactic acid and mixtures thereof claim 1 , at a concentration in the range of 45-90 wt %.7. (canceled)8. The process of claim 1 , wherein providing a metal oxide precursor fluid comprises:dissolving a molybdenum oxide precursor and a bismuth oxide precursor in the solvent to obtain a clear solution; andadding the iron oxide precursor and optionally one or more metal oxide precursors to the clear solution.9. The process of claim 1 , wherein heating includes calcination in the presence of air at a temperature of about 200° C. to about 700° C.10. (canceled)11. The process of claim 1 , wherein the inert carrier and the metal oxide catalyst are together present in the catalyst material in an amount of at least about 90 wt %.12. The process of claim 1 , wherein the inert carrier is selected from SiO claim 1 , AlO claim 1 , ZrO claim 1 ...

COMPOSITIONS AND METHODS RELATED TO THE PRODUCTION OF ACRYLONITRILE

Disclosed herein is a method useful in the process of contacting a first product that includes ethylene glycol, propylene glycol, and glycerol with the catalyst composition, thereby producing a second product that includes acrolein and acetaldehyde. 1. A method comprising the step of: {'br': None, 'sub': x', 'y', 'z, 'M1M2M3O'}, 'a) contacting a first product comprising ethylene glycol, propylene glycol, and glycerol with the catalyst composition, thereby producing a second product comprising acrolein and acetaldehyde, wherein the catalyst composition comprises a catalyst having the formulawherein M1 is a metal promoting dehydrogenation and C—O cleavage,wherein M2 is a metal with acid sites promoting dehydration,wherein M3 is an amphoteric catalyst support, with acid and base sites, promoting both dehydration and dehydrogenation in conjunction with M1,wherein x is a molar ratio from about 0.25 to about 4,wherein y is a molar ratio from about 0.25 to about 4,wherein z is the total amount of oxygen bound to M1, M2, and M3, and corresponds to the sum of the oxidation states of M1, M2, and M3.2. The method of claim 1 , wherein the method further comprises the steps of:b) separating at least a portion of the acetaldehyde from the second product; andc) following step b) converting at least a portion of the acrolein in the second product to acrylonitrile.3. The method of claim 1 , wherein the first product is produced from C5 and/or C6 sugars in a single step using a multifunctional catalyst.4. The method of claim 3 , wherein the C5 and/or C6 sugars is C5 and/or C6 hemicellulose and cellulose derived sugars.5. The method of claim 1 , wherein from about 10 wt % to about 90 wt % of the propylene glycol and glycerol in the first product are converted to acrolein.6. The method of claim 1 , wherein the second product comprises from about 20 wt % to about 75 wt % of acrolein.7. The method of claim 3 , wherein the multifunctional catalyst comprises one or more metals selected ...

METHOD FOR PRODUCING OXIDE CATALYST AND METHOD FOR PRODUCING UNSATURATED NITRILE

A method for producing an oxide catalyst according to the present invention is a method for producing an oxide catalyst containing Mo, V, Sb, and Nb, the method including: 1. A method for producing an oxide catalyst comprising Mo , V , Sb , and Nb , the method comprising:a raw material preparation step of obtaining an aqueous mixed liquid comprising Mo, V, Sb, and Nb;an aging step of subjecting the aqueous mixed liquid to aging at more than 30° C.;a drying step of drying the aqueous mixed liquid, thereby obtaining a dried powder; anda calcination step of calcining the dried powder, thereby obtaining the oxide catalyst, [{'sub': '3', '(I) in the raw material preparation step, the aqueous mixed liquid is prepared by mixing a Nb raw material liquid comprising Nb with a MoVSb raw material liquid comprising Mo, V, and Sb, wherein ammonia is added to at least one of the MoVSb raw material liquid, the Nb raw material liquid, and the aqueous mixed liquid such that a molar ratio in terms of NH/Nb in the aqueous mixed liquid is adjusted to be 0.7 or more, and in the aging step, a temperature of the aqueous mixed liquid is adjusted to more than 50° C.;'}, '(II) in the aging step, a temperature of the aqueous mixed liquid is adjusted to more than 65° C.; and', {'sub': 2', '2, '(III) in the raw material preparation step, the aqueous mixed liquid is prepared by mixing a Nb raw material liquid comprising Nb with a MoVSb raw material liquid comprising Mo, V, and Sb, wherein a molar ratio in terms of HO/Nb in the Nb raw material liquid is adjusted to less than 0.2, and in the aging step, a temperature of the aqueous mixed liquid is adjusted to more than 50° C.'}], 'wherein, in the raw material preparation step and/or the aging step, precipitation of Nb is facilitated by performing at least one operation selected from the group consisting of the following (I) to (III)3. The method for producing the oxide catalyst according to claim 1 , wherein the oxide catalyst comprises 30% by mass ...

ACRYLONITRILE MANUFACTURE

A method includes reacting, at a first pressure and in the presence of a catalyst, ammonia, oxygen, and a hydrocarbon selected from the group consisting of propane, propylene and isobutylene, and combinations thereof, to provide a reactor effluent stream that includes acrylonitrile. The method includes quenching the reactor effluent stream with a first aqueous stream to provide a quenched stream that includes acrylonitrile. The method includes compressing the quenched stream to provide an effluent compressor stream comprising acrylonitrile, and conveying, at a second pressure, the effluent compressor stream to an absorber. The method includes, in the absorber, absorbing acrylonitrile in a second aqueous stream to provide a rich water comprising acrylonitrile, wherein the absorbing is performed at a pressure greater than the first pressure. 1. An ammoxidation process comprising:reacting ammonia, oxygen, and a hydrocarbon selected from the group consisting of propane, propylene, isobutane and isobutylene, and combinations thereof in the presence of a catalyst, at a pressure of about 100 kPa (absolute) or less and a velocity of about 0.5 to about 1.2 meters/second to provide a reactor effluent stream.2. The ammoxidation process of claim 1 , wherein the reactor has an internal diameter of about 5 to about 15 meters.3. The ammoxidation process of claim 1 , wherein the reactor has an internal diameter of about 9 to about 12 meters.4. The ammoxidation process of claim 1 , wherein the reactor has a height (tangent to tangent) of about 10 to about 25 meters.5. The ammoxidation process of wherein the reacting is conducted at a pressure of about 5 kPa (absolute) to about 100 kPa (absolute).6. The ammoxidation process of claim 1 , wherein the velocity is measured at an inlet of the reactor and pressure is measured at an inlet of a cyclone.7. The ammoxidation process of claim 1 , wherein the process is effective for providing a conversion rate of hydrocarbon feed to ...

METHOD FOR STOPPING AMMOXIDATION REACTION

An object of the present invention is to provide a method for, when stopping an ammoxidation reaction of propane, stopping the ammoxidation reaction safely and quickly, without causing a deterioration in catalytic activity or acrylonitrile yield. The method for stopping an ammoxidation reaction includes a supply stopping step of stopping a supply of propane, an oxygen-containing gas, and ammonia to a reactor where an ammoxidation reaction of propane is being carried out using a catalyst, and a reaction stopping step of supplying an inert gas to the reactor in an amount 10 to 300 times the catalyst volume per hour until the catalyst temperature reaches 380° C. or less, wherein after the supply stopping step, a time required until the catalyst temperature decreases to 360° C. or less is within 10 hours. 1. A method for stopping an ammoxidation reaction comprising:a supply stopping step of stopping a supply of propane, an oxygen-containing gas, and ammonia to a reactor where an ammoxidation reaction of propane is being carried out using a catalyst; anda reaction stopping step of supplying an inert gas to the reactor in an amount 10 to 300 times the catalyst volume per hour until a catalyst temperature reaches 380° C. or less,wherein after the supply stopping step, a time required until the catalyst temperature decreases to 360° C. or less is within 10 hours.2. The method for stopping an ammoxidation reaction according to claim 1 , wherein the catalyst is a catalyst comprising Mo claim 1 , V claim 1 , Nb claim 1 , and Sb.3. A method for producing an acrylonitrile comprising:a supply stopping step of stopping a supply of propane, an oxygen-containing gas, and ammonia to a reactor where an ammoxidation reaction of propane is being carried out using a catalyst; anda reaction stopping step of supplying an inert gas to the reactor in an amount 10 to 300 times the catalyst volume per hour until a catalyst temperature reaches 380° C. or less,wherein after the supply stopping ...

METAL OXIDE CATALYST MATERIAL AND PROCESSES FOR MAKING AND USING SAME

The present disclosure relates to metal oxide catalyst materials useful, for example, in the ammoxidation of propylene or isobutylene, processes for making them, and processes for making acrylonitrile and methacrylonitrile using such catalyst materials. In certain aspects, a catalyst material is a fused composite of a metal oxide catalyst and nanoparticulate silica, the nanoparticulate silica comprising in the range of about 40 wt % to about 80 wt % of silica having a particle size in the range of 10 nm to 35 nm, and in the range of about 20 wt % to about 60 wt % of silica having a particle size in the range of 36 nm to 80 nm. The metal oxide catalyst can be, for example, a molybdenum-containing mixed metal oxide catalyst. 2. (canceled)3. The catalyst material according to claim 1 , wherein the silica carrier or the nanoparticulate silica comprises about 50 wt. % to about 70 wt. % of the silica having a particle size in the range of 10 nm to 35 nm.4. (canceled)5. The catalyst material according to claim 1 , wherein the silica carrier or the nanoparticulate silica includes about about 50 wt % to about 70 wt % of silica having a particle size in the range of 20 nm to 25 nm.6. (canceled)7. The catalyst material according to claim 1 , wherein the silica carrier comprises about 30 wt % to about 40 wt % of the silica having a particle size in the range of 36 nm to 80 nm.8. (canceled)9. The catalyst material according to claim 1 , wherein the silica carrier or the nanoparticulate silica about 30 wt % to about 40 wt % of silica having a particle size in the range of 40 nm to 70 nm.10. (canceled)11. The catalyst material according to claim 1 , wherein at least about 80 wt % is silica having a particle size in the range of 10 nm to 80 nm.12. (canceled)13. The catalyst material according to claim 1 , wherein the silica carrier and the metal oxide are together present in the catalyst material in an amount of or at least about 95 wt %.14. The catalyst material according to claim ...

Feed gas feeding system for propylene ammoxidation reactor

The present invention provides a feed gas feeding system for a propylene ammoxidation reactor. The feed gas feeding system comprises a feed gas mixing system and a feed distributor. A propylene and ammonia mixed gas is mixed by the feed gas mixing system and then uniformly distributed in the propylene ammoxidation reactor by means of the feed distributor, an initial temperature T0 when the propylene and ammonia mixed gas enters the feed distributor being 10-220° C. The propylene and ammonia feed gas feeding system of the present invention for ammoxidation of propylene and the preparation of acrylonitrile prevents the temperature of a gas mixture at any position in the propylene and ammonia feed distributor from reaching a temperature at which ammonia decomposes into active nitrogen atoms, thereby reducing a risk of brittle nitriding fractures of the propylene and ammonia distributor.

OFF-GAS INCINERATOR CONTROL

A process provides for minimizing an amount of fuel gas utilized in an absorber off-gas incinerator and better control of emissions. The process provides for less temperature deviations in the absorber off-gas incinerator firebox and for less deviation in an amount of oxygen in the absorber off-gas incinerator stack gas. 1. A process for operating an off-gas incinerator , the process comprising:introducing a flow of a reactant stream into an ammoxidation reactor;determining an amount of hydrocarbon in the reactant stream and determining a feed rate of the reactant stream;conveying a reactor effluent from the ammoxidation reactor to an absorber;supplying an absorber off-gas from the absorber to an absorber off-gas incinerator; andsupplying fuel gas and air to the absorber off-gas incinerator;{'sub': 'x', 'wherein the absorber off-gas, fuel gas, and air are supplied to the absorber off-gas incinerator in amounts to maintain about 6 kg or less NOin an absorber off-gas incinerator stack gas per ton acrylonitrile produced and about 3.5 kg or less non-methane hydrocarbon in absorber off-gas incinerator stack gas per ton acrylonitrile produced.'}2. The process of wherein a temperature in the absorber off-gas incinerator is maintained within about 10° F. of the temperature set point of the absorber off-gas incinerator.3. The process of wherein the hydrocarbon in the reactant stream is selected from the group consisting of propane claim 1 , propylene claim 1 , isobutene claim 1 , isobutylene and mixtures thereof.4. The process of wherein the hydrocarbon is propylene.5. The process of wherein the process provides about 5 volume % or less oxygen in an absorber off-gas incinerator stack gas.6. The process of wherein the process maintains about 3.5 kg or less CO in the absorber off-gas incinerator stack gas per ton acrylonitrile produced.7. The process of wherein the absorber off-gas incinerator temperature set point is a minimum temperature necessary to achieve less than the ...

CATALYST FOR FLUIDIZED BED AMMOXIDATION REACTION, AND METHOD FOR PRODUCING ACRYLONITRILE

A catalyst for a fluidized bed ammoxidation reaction containing silica and a metal oxide, wherein a composite of the silica and the metal oxide is represented by the following formula (1). 1. A catalyst for a fluidized bed ammoxidation reaction comprising:silica anda metal oxide, wherein {'br': None, 'sub': 12', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', '2', 'A, 'MoBiFeNiMgCoCeCrZnXO/(SiO)\u2003\u2003(1);'}, 'a composite of the silica and the metal oxide is represented by the following formula (1){'sub': '2', 'claim-text': [{'br': None, 'i': a', 'b+g', 'c+d+e+h, 'α=1.5/(1.5()+) \u2003\u2003(2);'}, {'br': None, 'i': b+g', 'c+d+e+h, 'β=1.5()/() \u2003\u2003(3); and'}, {'br': None, 'i': e', 'c+d+h, 'γ=/() \u2003\u2003(4).'}], 'wherein Mo represents molybdenum, Bi represents bismuth, Fe represents iron, Ni represents nickel, Mg represents magnesium, Co represents cobalt, Ce represents cerium, Cr represents chromium, Zn represents zinc, X represents at least one element selected from the group consisting of potassium, rubidium, and cesium, SiOrepresents silica, a, b, c, d, e, f, g, h, i, and j each represent an atomic ratio of each element and satisfy 0.1≤a≤1, 0.5≤b≤4, 0.5≤c≤6.5, 0.2≤d≤2.5, 0.5≤e≤7, 0.2≤f≤1.2, g≤0.05, h≤4, and 0.05≤i≤1, provided that j represents an atomic ratio of an oxygen atom, the atomic ratio satisfying valences of constituent elements excluding silica, A represents a content of silica (% by mass) in the composite and satisfies 35≤A≤48, and values of α, β, and γ calculated from the atomic ratios of respective elements by the following expressions (2), (3), and (4) satisfy 0.03≤α≤0.12, 0.1≤β≤0.7, and 0.2≤γ≤42. The catalyst for the fluidized bed ammoxidation reaction according to claim 1 , wherein δ calculated from the atomic ratio of each element by the following expression (5) satisfies{'br': None, 'i': a+b+f+g', 'c−d−e−h, 'δ=12−1.5()−\u2003\u2003(5).'}3. The catalyst for the fluidized bed ammoxidation reaction according to claim 1 , wherein ...

MIXED METAL OXIDE CATALYSTS

Catalytic compositions are provided that are effective for providing increased acrylonitrile product without a significant decrease in hydrogen cyanide and/or acetonitrile production and provide an overall increase in production of acrylonitrile, hydrogen cyanide and acetonitrile. The catalytic compositions include a complex of metal oxides and include at least about 15% m-phase plus t-phase by weight and have a weight ratio of m-phase to m-phase plus t-phase of 0.45 or greater. 18-. (canceled)9. A process for production of acrylonitrile comprising contacting propylene , ammonia and oxygen in a vapor phase in the presence of a metal oxide catalyst , the metal oxide catalyst having a formula:{'br': None, 'sub': 12', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'x, 'MoBiFeADEFGCeO'}wherein A is at least one element selected from the group consisting of sodium, potassium, rubidium and cesium;D is at least one element selected from the group consisting of nickel, cobalt, manganese, zinc, magnesium, calcium, strontium, cadmium and barium;E is at least one element selected from the group consisting of chromium, tungsten, boron, aluminum, gallium, indium, phosphorus, arsenic, antimony, vanadium and tellurium;F is at least one element selected from the group consisting of a rare earth element, titanium, zirconium, hafnium, niobium, tantalum, aluminum, gallium, indium, thallium, silicon, germanium, and lead;G is at least one element selected from the group consisting of silver, gold, ruthenium, rhodium, palladium, osmium, iridium, platinum and mercury;a is from 0.05 to 7;b is from 0.1 to 7;c is from 0.01 to 5;d is from 0.1 to 12;e is from 0 to 5;f is from 0 to 5;g is from 0 to 0.2;h is from 0.01 to 5; andx is a number of oxygen atoms required to satisfy valence requirements of other component elements,wherein the catalytic composition includes at least about 15% m-phase plus t-phase by weight and has a weight ratio of m-phase to m-phase plus t-phase of 0.45 or greater, where ...

METHOD FOR PRODUCING OXIDE CATALYST, AND METHOD FOR PRODUCING UNSATURATED NITRILE

There is provided a method for producing an oxide catalyst to be used for production of an unsaturated nitrile, the method including a step (a) of preparing an aqueous mixed liquid (A) containing Mo, V and Sb, a step (b) of mixing the aqueous mixed liquid (A), a carrier component and a Nb raw material at 20° C. or more and 80° C. or less to obtain an aqueous mixed liquid (B), a step (c) of drying the aqueous mixed liquid (B) to obtain a dried powder, and a step (d) of calcining the dried powder to obtain an oxide catalyst, wherein the aqueous mixed liquid (B) has a solid metal component concentration of 2.0 to 8.0% by mass. 1. A method for producing an oxide catalyst to be used for production of an unsaturated nitrile , the method comprising:a step (a) of preparing an aqueous mixed liquid (A) comprising Mo, V and Sb;a step (b) of mixing the aqueous mixed liquid (A), a carrier component and a Nb raw material at 20° C. or more and 80° C. or less to obtain an aqueous mixed liquid (B);a step (c) of drying the aqueous mixed liquid (B) to obtain a dried powder; anda step (d) of calcining the dried powder to obtain an oxide catalyst,wherein the aqueous mixed liquid (B) has a solid metal component concentration of 2.0 to 8.0% by mass.2. The method for producing the oxide catalyst according to claim 1 , wherein the aqueous mixed liquid (B) has a solid component concentration of 6.0 to 20% by mass.3. The method for producing the oxide catalyst according to claim 1 , wherein the carrier component comprises a silica; and an amount of the silica mixed is 20 to 70% by mass in terms of SiObased on a total amount of the oxide catalyst.5. The method for producing the oxide catalyst according to claim 4 , wherein a and b in the composition formula (1) satisfy 0.5≦a/b≦0.98.6. A method for producing an unsaturated nitrile claim 1 , comprising a step of subjecting propane or isobutane to a vapor-phase catalytic oxidation reaction or a vapor-phase catalytic ammoxidation reaction with an ...

FLUID DISTRIBUTOR, REACTION DEVICE AND APPLICATION THEREOF

A fluid distributor includes one or more fluid transport main pipe. The fluid transport main pipe is configured to assume a closed shape when its centerlines and/or centerline extensions are joined end-to-end. Each of the fluid transport main pipe has at least one fluid inlet and is connected with a plurality of fluid transport branch pipes. Each of the fluid transport branch pipes has a plurality of open pores disposed along the length of the fluid transport branch pipe and a connection portion. The connection portion is configured to connect the fluid transport branch pipe to the housing after the fluid transport branch pipe passes through the housing of the vessel into the inner cavity. 1. A fluid distributor adapted to transport a fluid to a vessel inner cavity , the fluid distributor comprising:one or more (preferably 1-8, more preferably 1-4 or 1-2) fluid transport main pipe(s); either one fluid transport main pipe is configured to form a closed shape (preferably a closed shape substantially conforming to the peripheral contour of the vessel, more preferably a substantially planar closed shape, more preferably a substantially planar circular, elliptical or polygonal shape, more preferably the closed shape is substantially perpendicular to the vessel centerline), when its centerline and/or centerline extension thereof are joined end-to-end; or a plurality of fluid transport main pipes are configured to form a closed shape (preferably a closed shape substantially conforming to the peripheral contour of the vessel, more preferably a substantially planar closed shape, more preferably a substantially planar circular, elliptical or polygonal shape, more preferably the closed shape is substantially perpendicular to the vessel centerline), when their respective centerlines and/or centerline extensions thereof are joined end-to-end, and each of the fluid transport main pipe(s) has at least one (preferably 1-3, more preferably 1) fluid inlet,a plurality of fluid ...

Fluid bed reactor and method of producing nitrile compound using same

This fluid bed reactor prevents catalyst accumulation in a recessed portion of the inner wall of the reactor and prevents device deterioration and adverse effects on reactions. Further, the fluid bed reactor prevents rapid generation of heat due to outside air contacting a catalyst accumulated in the recessed portion of the inner wall of the reactor. Also, the fluid bed reactor prevents catalyst particle accumulation on a protruding portion inside of the reactor, and prevents deterioration of material quality of the device and adverse effects on reactions. Furthermore, the fluid bed reactor prevents rapid heat generation due to outside air contacting catalyst particles accumulated on the protruding portion of the reactor.

流化床反应器及使用其的腈化合物的制造方法

本发明防止触媒堆积于反应器的内壁的凹部，而防止装置的劣化或对反应的不良影响。进而，防止堆积于反应器的内壁的凹部的催化剂因接触外部空气而急遽发热。此外，防止催化剂颗粒堆积于反应器内部的突出部，而防止装置的材质劣化或对反应的不良影响。进而，防止堆积于反应器的突出部的催化剂颗粒因接触外部空气而急遽发热。

流化床反应器及使用其的腈化合物的制造方法

本发明防止触媒堆积于反应器的内壁的凹部，而防止装置的劣化或对反应的不良影响。进而，防止堆积于反应器的内壁的凹部的催化剂因接触外部空气而急遽发热。此外，防止催化剂颗粒堆积于反应器内部的突出部，而防止装置的材质劣化或对反应的不良影响。进而，防止堆积于反应器的突出部的催化剂颗粒因接触外部空气而急遽发热。

Method for the synthesis of acrylonitrile from glycerol

The invention relates to a novel way to synthesize acrylonitrile from a renewable raw material and more particularly relates to a method for producing acrylonitrile by the ammoxidation of glycerol in gaseous phase. The method can be implemented in a single step, or the glycerol can be previously submitted to a dehydration step. The acrylonitrile thus obtained meets the requirements of green chemistry.

CATALYTIC SYSTEM FOR THE AMMOSSIDATION OF PROPYLENE TO ACRILONITRILE.

Method for producing catalyst and method for producing acrylonitrile

A method for producing a catalyst according to the present invention includes: a preparation step of preparing a precursor slurry comprising molybdenum, bismuth, iron, silica, and a carboxylic acid; a drying step of spray-drying the precursor slurry and thereby obtaining a dried particle; and a calcination step of calcining the dried particle, wherein the preparation step comprises: a step (I) of mixing a starting material for silica with the carboxylic acid and thereby preparing a silica-carboxylic acid mixed liquid; and a step (II) of mixing the silica-carboxylic acid mixed liquid, molybdenum, bismuth, and iron.

Composite oxide catalyst, method for producing same, and method for producing unsaturated nitrile

It is an object of the present invention to provide a composite oxide catalyst which can suppress the generation of CO 2 and CO and improve the yield of an unsaturated nitrile in a method for subjecting propane or isobutane to a vapor-phase catalytic ammoxidation reaction to produce a corresponding unsaturated nitrile, and a method for producing the composite oxide catalyst, and a method for producing an unsaturated nitrile using the composite oxide catalyst. A composite oxide catalyst used for a vapor-phase catalytic oxidation reaction or vapor-phase catalytic ammoxidation reaction of propane or isobutane, the composite oxide catalyst comprising a composite oxide represented by the following composition formula (1):         MO 1 V a Sb b Nb c W d Z e O n      (1), wherein the component Z is one or more element selected from the group consisting of La, Ce, Pr, Yb, Y, Sc, Sr, and Ba; a, b, c, d, e, and n represent atomic ratios of the elements; and 0.1 ≤ a < 0.2, 0.15 ≤ b ≤ 0.5, 0.1 ≤ c ≤ 0.5, 0 ≤ d ≤ 0.4, 0 ≤ e ≤ 0.2, and 0.60 < a/b < 1.00.

Process for producing α,β-unsaturated nitrile

Procedimiento para reducir la cantidad de material residual durante la produccion de acrilonitrilo.

UN PROCESO PARA LA REDUCCION EN LA CANTIDAD DE MATERIAL RESIDUAL EN LA CANTIDAD DE MATERIAL RESIDUAL GENERADO DURANTE LA FABRICACION DE ACRILONITRILO QUE COMPRENDE LA INTRODUCCION DE UNA CANTIDAD ADICIONAL DE OXIGENO CONTENIENDO GAS, PREFERIBLEMENTE AIRE, EN LA AUSENCIA SUSTANCIAL DE CUALQUIER COMPUESTO OXIGENADO, EN LA PARTE SUPERIOR DEL REACTOR DE LECHO FLUIDO PARA QUE REACCIONE CON AL MENOS PARTE DEL AMONIACO SIN REACCION PARA REDUCIR LA CANTIDAD DE AMONIACO SIN REACCION PRESENTE EN EL EFLUENTE DEL REACTOR.

Synthetic methods for the preparation of propylene ammoxidation catalysts

The present disclosure relates generally to catalyst materials and processes for making and using them. More particularly, the present disclosure relates to molybdenum, bismuth and iron-containing metal oxide catalyst materials useful, for example, in the partial oxidation or ammoxidation of propylene or isobutylene, processes for making them, and processes for making acrolein, methacrolein, acrylonitrile, and methacrylonitrile using such catalysts.

New synthetic methods for the preparation of propylene ammoxidation catalysts

The present disclosure relates generally to catalyst materials and processes for making and using them. More particularly, the present disclosure relates to molybdenum, bismuth and iron-containing metal oxide catalyst materials useful, for example, in the partial oxidation or ammoxidation of propylene or isobutylene, processes for making them, and processes for making acrolein, methacrolein, acrylonitrile, and methacrylonitrile using such catalysts.

Process for the production of nitriles

An improved process is provided for the production of nitriles from hydrocarbons by reaction with oxygen, air or gas-enriched in relative to an air, and ammonia, in the presence of an ammoxidation catalyst. An alkane, e.g. propane, is converted to an alkene in a multistage dehydrogenator. The product stream is withdrawn from a reactor in the dehydrogenator other than the first and the last reactor and introduced into an ammoxidation reactor. The product is recovered in a conventional quench tower. The gaseous effluent from the quench tower is treated in a pressure swing adsorption unit to form a gas stream containing the unreacted alkane and alkene as well as a minor amount of oxygen. The gas stream, which may or may not contain hydrogen depending on the absorbent in the pressure swing adsorption unit, is introduced into the reactor in the dehydrogenator following that from which the product stream was withdrawn. The effluent from the last reactor in the dehydrogenator is introduced into: the first reactor; an intermediate reactor wherein the alkene concentration closely approximates the effluent or the ammoxidation reactor. The subject process is particularly efficient utilizing oxygen-enriched air in the reactor feed. A particularly preferred pressure swing adsorption system for use in the subject process comprises two parallel pressure swing adsorption units containing different adsorbents such that the gas stream formed in one contains all of the hydrogen in the gas phase from the quench tower. The feed to the pressure swing adsorption units is divided disproportionately so that the conbined pressure swing adsorption effluent recycle streams contain the optimum concentration of hydrogen for the dehydrogenator.

Method of producing catalyst and method of producing acrylonitrile

FIELD: chemistry. SUBSTANCE: invention relates to a method of producing a catalyst and a method of producing acrylonitrile. Described is a method of producing an ammoxidation catalyst, wherein the catalyst comprises: a metal oxide having a total composition represented by formula (1) below; and silica: Mo 12 Bi a Fe b X c Y d Z e O f (1), where X is at least one element selected from the group consisting of nickel, cobalt, magnesium, calcium, zinc, strontium and barium; Y is at least one element selected from a group consisting of cerium, chromium, lanthanum, neodymium, yttrium, praseodymium, samarium, aluminum, gallium and indium; Z is at least one element selected from a group consisting of potassium, rubidium and cesium; a, b, c, d, e and f denote atomic fraction of each element and satisfy conditions 0.1≤a≤3.0, 0.1≤b≤3.0, 0.1≤c≤10.0, 0.1≤d≤3.0 and 0.01≤e≤2.0, respectively, and f is the number of oxygen atoms required to satisfy the requirements of atomic valences of other elements present in formula (1), wherein the method includes: a step of preparing a precursor suspension containing molybdenum, bismuth, iron, silica and carboxylic acid; spray drying the precursor suspension to obtain dry particles; and a step for burning dried particles, where the preparation step includes: step (I) mixing the starting material of silica with a carboxylic acid and thereby obtaining a mixed liquid of silica-carboxylic acid; and stage (II) of mixing said mixed liquid of silica-carboxylic acid, molybdenum, bismuth and iron. Described also is an ammoxidation catalyst obtained using the method described above. Methods of producing acrylonitrile include a step for preparing an ammoxidation catalyst using the method described above and a reaction step for reacting propylene, molecular oxygen and ammonia in the presence of said catalyst. EFFECT: method of producing a catalyst which provides high output of acrylonitrile. 11 cl, 2 dwg, 4 tbl, 40 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13 ...

Catalyst, method for producing catalyst, method for producing acrylonitrile

본 발명은 몰리브덴과 비스무트와 철을 포함하는 촉매로서, 환원율이 0.20∼5.00％의 범위인 촉매를 제공한다. The present invention provides a catalyst comprising molybdenum, bismuth, and iron, with a reduction rate in the range of 0.20 to 5.00%.

Method for synthesis of acrylonitrile from glycerine

FIELD: chemistry. SUBSTANCE: invention relates to a method of producing acrylonitrile from glycerine. The method involves a first step for gas-phase dehydration of glycerine in the presence of a catalyst having Hammett acidity, denoted by H 0 , less than +2, at temperature ranging from 150°C to 500°C and at pressure and at pressure ranging from 1 to 5 bar, to obtain acrolein; a second step for ammoxidation of acrolein on an ammoxidation catalyst at temperature ranging from 300°C to 550°C and at pressure ranging from 1 to 5 bar, to obtain acrylonitrile; and an intermediate step for partial condensation of water and heavy byproducts obtained at the dehydration step. The invention also relates to acrylonitrile with 14 C content of the order 10 -10 wt % with respect to total weight of carbon which can be obtained using the method given above. EFFECT: method enables to optimise the acrolein ammoxidation step by reducing the amount of water and impurities in a stream rich in acrolein. 3 cl, 2 dwg, 1 tbl, 3 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 471 774 (13) C2 (51) МПК C07C C07C C07C C07C C08F 253/24 (2006.01) 255/08 (2006.01) 253/26 (2006.01) 255/04 (2006.01) 220/44 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009134501/04, 18.02.2008 (24) Дата начала отсчета срока действия патента: 18.02.2008 (73) Патентообладатель(и): АРКЕМА ФРАНС (FR) R U Приоритет(ы): (30) Конвенционный приоритет: 16.02.2007 FR 0753293 (72) Автор(ы): ДЮБУА Жан-Люк (FR) (43) Дата публикации заявки: 27.03.2011 Бюл. № 9 2 4 7 1 7 7 4 (45) Опубликовано: 10.01.2013 Бюл. № 1 2 4 7 1 7 7 4 R U (85) Дата начала рассмотрения заявки PCT на национальной фазе: 16.09.2009 C 2 C 2 (56) Список документов, цитированных в отчете о поиске: Е.LEETE et al. Biosynthesis of Shihunine in Dendrobium pierardii, J. AMER. CHEM. SOC, 1976, vol. 98, 6321-6325. GB 709337 A, 19.05.1954. WO 2006/087083 A2, 24.08.2006. US 5387720 A, 07.02.1995. RU 2105757 C1, 27 ...

用于氨氧化反应器的进料分布器设计

通过使用气密性快速断开配件将分布器的各个部段附连到彼此以及反应器的壁来方便更换在商用氨氧化反应器中使用的进料分布器的不同部段。此外，在这些分布器部段中支管管道的直径以及附连到这些支管的进料喷嘴的直径被改变以有利于通过这些部件的进料气体的均匀流动。分布器可被细分成布置用于更好的反应器控制的多个进料分布器部段。最后，端接于分布器支管管道的远端的端盖可设有喷嘴，以用于去除可能非故意地到达分布器内部的任何氨氧化催化剂。

Fluidized bed reactor

改进的旋风分离器构造

本发明涉及改进的旋风分离器构造。具体而言，一种氨氧化反应反应器包括悬吊在反应器中的多级旋风分离器组的外环。旋风分离器的各多级组包括具有第一级入口的第一级旋风分离器，该第一级旋风分离器构造为接收从反应器中的流化催化剂床向上流动的反应器流，并且从反应器流分离催化剂中的至少一部分。每平方米反应器的可用剖面面积的第一级入口面积的平方米比率为大约0.03至大约0.05。氨氧化反应工艺包括使烃流在反应器中的流化催化剂床中反应来产生反应器流。该工艺还包括在多级旋风分离器组的外环中从反应器流分离催化剂。以米/秒计的旋风分离器入口速率与以米/秒计的反应器流出物速率之比为15或更大。

Fluid bed reactor and method for producing α, β-unsaturated nitrile

【課題】流動層反応において、触媒と原料との接触効率を高め、かつ、触媒飛散が低減し、かつ、空時収率を高められる、流動層反応装置及びα，β−不飽和ニトリルの製造方法を提供する。【解決手段】触媒が流動可能に収納されている内部空間を有し、かつ、反応ガスから熱を除去するための冷却コイルと、反応ガスから前記触媒を分離回収するためのサイクロンと、を前記内部空間に有する反応器を備え、前記内部空間の最下点の高さを基準として前記サイクロンの入口部下端の平均高さをｈとし、高さｈにおける前記反応器の内径を上部内径Ｄ１とし、ｈ／２〜ｈ／４の高さｈ'における前記反応器の平均内径を下部内径Ｄ２としたとき、Ｄ１／Ｄ２が１．０００超１．３１０以下であり、前記高さｈにおける有効断面積を上部有効断面積Ａ１とし、前記高さｈ'における平均有効断面積を下部有効断面積Ａ２としたとき、Ａ１／Ａ２が１．１８超１．８８以下である、流動層反応装置。【選択図】図１ PROBLEM TO BE SOLVED: To produce a fluidized bed reactor and an α, β-unsaturated nitrile capable of enhancing the contact efficiency between a catalyst and a raw material, reducing the catalyst scattering and increasing the space time yield in the fluidized bed reaction. Provide a way. A cooling coil for removing heat from a reaction gas, having an internal space in which the catalyst is fluidly stored, and a cyclone for separating and recovering the catalyst from the reaction gas are described above. A reactor having an inner space is provided, and the average height of the lower end of the inlet of the cyclone is h based on the height of the lowest point of the inner space, and the inner diameter of the reactor at the height h is an upper inner diameter D1. And the average inner diameter of the reactor at a height h ′ of h / 2 to h / 4 is the lower inner diameter D2, D1 / D2 is more than 1.000 and not more than 1.310, and the effective cut at the height h A fluidized bed reactor, wherein A1 / A2 is more than 1.18 and not more than 1.88, where an area is an upper effective area A1 and an average effective area at the height h 'is a lower effective area A2. [Selected figure] Figure 1

Process for producing unsaturated nitrile

A process for producing unsaturated nitrile, using a fluidized bed reactor having an internal space having a catalyst capable of being fluidized therein, a feed opening to feed a starting material gas comprising hydrocarbon to the internal space, and a discharge port to discharge a reaction product gas from the internal space, the process comprising a reaction step of subjecting the hydrocarbon to a vapor phase catalytic ammoxidation reaction in the presence of the catalyst in the internal space to produce the corresponding unsaturated nitrile, wherein when in the internal space, a space where an existing amount of the catalyst per unit volume is 150 kg/m 3 or more is defined as a dense zone and a space where an existing amount of the catalyst per unit volume is less than 150 kg/m 3 is defined as a sparse zone in the reaction step, a gas residence time in the sparse zone is 5 to 50 sec.

Fluid bed process for synthesis of nitriles by ammoxidation and the recycling of ammonia-rich catalyst from a quench zone to a reaction zone

APPARATUS FOR THE MANUFACTURE OF ALPHA NITRILE, BETA NOT SATURATED.

SE PRESENTA UN APARATO PARA PRODUCIR UN NITRILO ALFA, BETA-INSATURADO CON EL MISMO NUMERO DE ATOMOS DE CARBONO QUE EL DE UNA OLEFINA O ALCOHOL T-BUTIL COMO MATERIAL INICIADOR MEDIANTE LA REACCION DE TANTO UN PROPILENO COMO UN ISOBUTILENO O UN ALCOHOL T-BUTIL CON AMONIACO Y UN GAS QUE CONTENGA OXIGENO, DICHO APARATO ESTA CONSTITUIDO POR UN REACTOR; UN SUMINISTRADOR DE GAS INICIADOR PROVISTO HORIZONTALMENTE EN LA PARTE INFERIOR DE UN REACTOR Y EQUIPADO POR UNA PLURALIDAD DE BOQUILLAS PARA EL INSUFLADO DEL GAS INICIADOR SOBRE LA SUPERFICIE INFERIOR DEL MISMO; UN SUMINISTRADOR DEL GAS CON CONTENIDO EN OXIGENO SITUADO POR DEBAJO DEL SUMINISTRADOR DEL GAS INICIADOR EN PARALELO CON EL Y EQUIPADO CON EL MISMO NUMERO DE CONDUCTOS PARA EL INSUFLADO DEL GAS CON CONTENIDO EN OXIGENO QUE EL DE LAS BOQUILLAS PARA EL INSUFLADO DEL GAS INICIADOR SOBRE LA SUPERFICIE SUPERIOR DEL MISMO DE TAL MANERA QUE CADA UNO DE DICHOS CONDUCTOS MIRE A CADA UNA DE DICHAS BOQUILLAS, ALCANZANDO LA DISTANCIA RELATIVA ENTRE CADA CONDUCTO Y CADA BOQUILLA ENTRE 25 Y 300 MM. Y ESTANDO LOS CONDUCTOS DISPUESTOS A UNA DISTANCIA DE ENTRE 90 Y 259 MM. UNOS DE OTROS CON UNA DENSIDAD RELATIVA DE DISTRIBUCION DE ENTRE 16 Y 120/M (AL CUADRADO) CON RELACION A LA SECCION DE CORTE DEL REACTOR. AN APPARATUS IS PRESENTED TO PRODUCE AN ALPHA NITRILE, BETA-UNSATURATED WITH THE SAME NUMBER OF ATOMS OF CARBON AS THAT OF AN OLEPHINE OR T-BUTYL ALCOHOL AS INITIATOR MATERIAL THROUGH THE REACTION OF BOTH A PROPYLENE OR A-ATILL WITH AMMONIA AND A GAS CONTAINING OXYGEN, SUCH A DEVICE IS CONSTITUTED BY A REACTOR; A SUPPLIER OF INITIATOR GAS PROVIDED HORIZONTALLY ON THE BOTTOM OF A REACTOR AND EQUIPPED WITH A PLURALITY OF NOZZLES FOR THE INSULATION OF INITIATOR GAS ONTO THE BOTTOM SURFACE; A GAS SUPPLIER WITH OXYGEN CONTENT LOCATED BELOW THE INITIATOR GAS SUPPLIER IN PARALLEL WITH HIM AND EQUIPPED WITH THE SAME NUMBER OF DUCTS FOR THE INSULATION OF GAS WITH OXYGEN CONTENT AS THAT OF THE NOZZLES FOR GEL INSULATION SUPERIOR SURFACE ...

Method for eliminating nitriding during acrylonitrile production

An improved process for substantially eliminating, preferably completely eliminating of nitride formation on feed conduits for fluid bed catalyst reactors used in the manufacture of unsaturated nitriles from corresponding olefins, NH3 and oxygen comprising maintaining the temperature of the ammonia inside the conduit below its dissociation temperature and/or maintaining the temperature of the inside surface of the conduit below the temperature at which any mono-atomic nitrogen can react with the conduit to form a nitride. <IMAGE>

Purification method, method of producing and apparatus for distillation of acrylonitrile

FIELD: technological processes. SUBSTANCE: invention relates to a method of purifying acrylonitrile. Method includes a step for feeding a solution of acrylonitrile containing acrylonitrile, hydrogen cyanide and water, into a distillation column and a purification step by distillation of acrylonitrile solution. At that, cleaning stage contains the first stage of side line cooling, taken in the first position of the distillation column, by means of refrigerator and separation of side line on organic layer and water layer by means of decanter. Then the organic layer is returned to the second position of the distillation column, besides, the second position is below the first position. At the second stage water is supplied to the third position of the distillation column, besides, the third position is below the second position and above the lowest stage of the distillation column. Invention also relates to a method of producing acrylonitrile, involving a step for purifying said method, and a distillation apparatus for purifying acrylonitrile using said method. EFFECT: disclosed method enables to prevent polymerisation of acrylonitrile and driving of the distillation column. 3 cl, 2 dwg, 7 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) (19) RU (11) (13) 2 736 379 C1 (51) МПК B01D 3/14 (2006.01) B01D 3/40 (2006.01) B01D 3/42 (2006.01) C07C 253/24 (2006.01) C07C 253/26 (2006.01) C07C 253/34 (2006.01) C07C 255/08 (2006.01) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B01D 3/14 (2019.08); B01D 3/143 (2019.08); B01D 3/40 (2019.08); B01D 3/42 (2019.08); B01D 3/4261 (2019.08); C07C 253/24 (2019.08); C07C 253/26 (2019.08); C07C 253/34 (2019.08); C07C 255/08 (2019.08) (21)(22) Заявка: 2018107550, 21.08.2017 21.08.2017 (73) Патентообладатель(и): АСАХИ КАСЕИ КАБУСИКИ КАЙСЯ (JP) Дата регистрации: 16.11.2020 21.10.2016 JP 2016-207039 (45) Опубликовано: 16.11.2020 Бюл. № 32 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 21.05.2019 (86) ...

ニオブおよびテルルの低下した含有量ならびにエタンの酸化的脱水素化に対するより高い活性を有するＭｏＶＮｂＴｅ触媒の合成

本発明は、元素モリブデン、バナジウム、ニオブおよびテルルを含み、ＸＲＤにおいて、Ｃｕ−Ｋα線を使用した際、回折反射ｈ、ｉ、ｋおよびｌを有し、それらのピークがおよそ回折角（２θ）２６．２°±０．５°（ｈ）、２７．０°±０．５°（ｉ）、７．８°±０．５°（ｋ）および２８．０°±０．５°（ｌ）に位置する、混合酸化物材料であって、以下の化学量論比：Ｍｏ１ＶａＮｂｂＴｅｃＯｎ（Ｉ）（式中、ａ＝０．２〜０．３５、ｂ＝０超０．０８まで、ｃ＝０超０．０８まで、ｎ＝（Ｉ）中の酸素ではない元素の原子価および存在量によって定まる数）を有することを特徴とする、混合酸化物材料に関する。

Улучшенная конструкция циклонов

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 134 469 A (51) МПК B01J 8/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21) (22) Заявка: 2017134469, 03.03.2016 (71) Заявитель(и): ИНЕОС ЮРОП АГ (CH) Приоритет(ы): (30) Конвенционный приоритет: 06.03.2015 CN 201510099291.9 (43) Дата публикации заявки: 08.04.2019 Бюл. № 10 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 06.10.2017 US 2016/020551 (03.03.2016) (87) Публикация заявки PCT: WO 2016/144662 (15.09.2016) R U (54) УЛУЧШЕННАЯ КОНСТРУКЦИЯ ЦИКЛОНОВ (57) Формула изобретения 1. Реактор аммоксидирования, содержащий: наружное кольцо наборов многоступенчатых циклонов, подвешенных в реакторе, причем каждый многоступенчатый набор циклонов содержит циклон первой ступени с впускным отверстием первой ступени, сконструированным для приема потока реактора, протекающего вверх из псевдоожиженного слоя катализатора в реактор, и выделения, по меньшей мере, части катализатора из потока реактора; причем соотношение квадратного метра площади впускного отверстия первой ступени к квадратному метру доступной площади сечения реактора составляет от приблизительно 0,03 до приблизительно 0,05. 2. Реактор аммоксидирования по п. 1, в котором соотношение квадратного метра площади впускного отверстия первой ступени к квадратному метру доступной площади сечения реактора на кубический метр объема слоя катализатора составляет от приблизительно 0,00006 до приблизительно 0,0002. 3. Реактор аммоксидирования по п. 1, в котором соотношение квадратного метра площади впускного отверстия первой ступени к квадратному метру доступной площади сечения реактора на метрическую тонну катализатора составляет от приблизительно 0,00015 до приблизительно 0,00035. 4. Реактор аммоксидирования по п. 1, в котором катализатор сконструирован для облегчения реакции углеводорода, аммиака и кислорода в реакторе для получения Стр.: 1 A 2 0 1 7 1 3 4 4 6 9 A Адрес для переписки: 119019, Москва, Гоголевский б-р, 11, ...

Improved selective ammoxidation catalysts

FIELD: chemistry.SUBSTANCE: disclosed is a catalyst composition for increasing selectivity to acrylonitrile during conversion of propylene to acrylonitrile by reacting in a vapour phase at high temperature and pressure of said propylene with a gas containing molecular oxygen, and ammonia and a method for increasing selectivity to acrylonitrile during conversion of propylene to acrylonitrile by reacting in a vapour phase at high temperature and pressure of said propylene with a gas containing molecular oxygen, and ammonia in the presence of said composition. Catalytic composition contains complex of metal oxides, wherein relative ratios of said elements in said catalyst composition are represented by the following formula: MoBiFeADEFGCeO, wherein A is at least one element selected from the group consisting of sodium, potassium, rubidium and cesium; and D is at least one element selected from the group consisting of nickel, cobalt, manganese, zinc, magnesium, calcium, strontium, cadmium and barium; E is at least one element selected from the group consisting of chromium, tungsten, boron, aluminium, gallium, indium, phosphorus, arsenic, antimony, vanadium and tellurium; F is at least one element selected from the group consisting of lanthanum, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutecium, scandium, yttrium, titanium, zirconium, hafnium, niobium, tantalum, aluminium, gallium, indium, thallium, silicon, germanium and less than approximately 10 ppm of lead; G is at least one element selected from the group consisting of silver, gold, ruthenium, rhodium, palladium, osmium, iridium, platinum and mercury; and a, b, c, d, e, f, g, h and x respectively represent atomic ratios of bismuth (Bi), iron (Fe), A, D, E, F, G, cerium (Ce) and oxygen (O) relative to "m" of molybdenum (Mo) atoms, where ranges from 0.05 to 7, b ranges from 0.1 to 7, c ranges from 0.01 to 5, d ranges from 0.1 to 12, e is ...

Устройство дл получени @ , @ ненасыщенного нитрила

Устройство дл  получени  а,/ -ненасыщенного нитрила, содержащего то же самое количество атомов углерода, что и исходное сырье, представл ющее собой олефин или трет-бутиловый спирт путем приведени  во взаимодействие пропилена, изобутилена или трет-бутилового спирта, аммиака и кислородсодержащего воздуха, содержащее: реактор, питатель газового сырь , горизонтально расположенный в нижней части реактора и снабженный множеством выпускных сопел газового сырь  параллельно ему, и питатель кислородсодержащего газа, расположенный в нижней Засти питател  газового сырь  параллельно ему, отсто щий от него на заданное рас- сто ние и снабженный выпускными патрубками кислородсодержащего газа, расположенными на верхней поверхности питател  кислородсодержащего газа напротив выпускных сопел газового сырь , причем количество выпускных патрубков кислородсодержащего газа равно количеству выпускных сопел газового сырь , предусмотренных на питателе газового сырь , заданное рассто ние, определенное как соответствующие промежутки между соплами и патрубками, и интервалы между выпускными кислородсодержащего газа составл ют 90-250 мм, количество их составл ет 16-120 шт/м площади попереч ного сечени  реактора 3 з.п. ф-лы, 4 ил. 3 табл.

촉매, 촉매의 제조 방법, 아크릴로니트릴의 제조 방법

몰리브덴, 비스무트, 철, 및 니켈을 포함하는 촉매로서, 벌크의 니켈 농도에 대한, 표면의 니켈 농도의 비율이, 0.60∼1.20인 촉매.

Process for preparing catalyst and process for producing acrylonitrile

본 발명에 따른 촉매의 제조 방법은, 몰리브덴과 비스무트와 철과 실리카와 카르복실산을 포함하는 전구체 슬러리를 조제하는 조제 공정과, 상기 전구체 슬러리를 분무 건조하여 건조 입자를 얻는 건조 공정과, 상기 건조 입자를 소성하는 소성 공정을 가지며, 상기 조제 공정이, 실리카 원료와 카르복실산을 혼합하여, 실리카-카르복실산 혼합액을 조제하는 공정 (I)과, 상기 실리카-카르복실산 혼합액, 몰리브덴, 비스무트 및 철을 혼합하는 공정 (II)를 포함한다. A method for producing a catalyst according to the present invention includes a preparation step of preparing a precursor slurry containing molybdenum, bismuth, iron, silica, and carboxylic acid, a drying step of spray drying the precursor slurry to obtain dried particles, and the drying It has a baking process which bakes a particle | grain, The said preparation process mixes a silica raw material and carboxylic acid, and prepares a silica-carboxylic-acid mixed liquid, and the said silica-carboxylic acid mixed liquid, molybdenum, bismuth. And step (II) of mixing iron.

Patent RU2017134469A3

”ВУ“” 2017134469” АЗ Дата публикации: 04.06.2019 Форма № 18 ИЗ,ПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2017134469/05(060653) 03.03.2016 РСТ/О$2016/020551 03.03.2016 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 201510099291.9 06.03.2015 СМ Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) УЛУЧШЕННАЯ КОНСТРУКЦИЯ ЦИКЛОНОВ Заявитель: ИНЕОС ЮРОП АГ, СН 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) ВО1.] 5/24 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) ВО1} 8/00-8/46, ВО11 19/00-19/32, ВОТ 45/00-45/18, ВО4С 3/00-3/06, ВО4С 5/00-5/30, ВО4С 7/00 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): СТРО, СМТРА, РЕРАТ пе, О\У/Р1, ЕАРАТТУ, Езрасепе, С]оба! Рез1еп РааБазе, Соо®е, Соозе Ржепб, ]-Р]а{ Рас К-РЛОМ, КРК, РАТЕМТСОРЕ, Р5э, Раеагсв, КОРТО, ОРТО, Уапдех, БД ВИНИТИ 6 ДОКУМЕНТЫ, ...

Method for production of unsaturated nitrile

FIELD: production of unsaturated nitriles of suitable olefins, NH 3 and oxygen. SUBSTANCE: temperature of ammonia inside pipeline of fluidized bed reactors is maintained lower than its dissociation point; and/or temperature of inside surface of pipeline is maintained lower than temperature at which any single atomic nitrogen may interact with pipeline to produce nitride. EFFECT: improved efficiency of the method. 12 cl, 3 dwg сссзО0тс ПЧ Го (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ "” 2108 323. 57 МК С 07С 253/26, 255/08 13) СЛ 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 93049754/04, 13.10.1993 (30) Приоритет: 14.10.1992 Ц$ 07/960,653 (46) Дата публикации: 10.04.1998 (56) Ссылки: Ц5, патент, 3991096, кл. С 07 С 120/14, 1976. Ц$, патент, 3642930, кл.260-680Е, 1972. ЦЗ, патент, 3704690, 122-7К, 1972. 45$, патент, 4863891, кл. В 01 / 27/78, 1989. ЦЗ, патент, 4707878, кл. А 47 [ 5/12, 1987. (3, патент, 4401153, Е 28 Е 19/00, 1983. Ц$, патент, 5110584, А 61 К 11025, 1992. $504, авторское свидетельство, 497288, кл. С ОТС 253/26, 19715. Ц5, патент, 4801731, кл. С 07 С 12014, 1989. (71) Заявитель: Дзе Стандарт Ойл Компани (1$) (72) Изобретатель: Стивен Дж.Роув[Ц$], Джон Т.Шульц[И$], Роберт Дж.Мак[Ц$], Сюзан Л.Дио[ЧЗ] (73) Патентообладатель: Дзе Стандарт Ойл Компани (1$) (54) СПОСОБ ПОЛУЧЕНИЯ НЕНАСЫЩЕННОГО НИТРИЛА (57) Реферат: Изобретение ОТНОСИТСЯ К усовершенствованному способсу, позволяющему практически исключить образование нитрида на подающих трубопроводах В реакторах С псевдоожиженным слоем катализатора, используемых в производстве ненасыщенных нитрилов из соответствующих олефинов, МНз и кислорода, согласно способу температуру аммиака внутри трубопровода поддерживают на уровне ниже температуры его диссоциации и/или температуру внутренней поверхности трубопровода поддерживают на уровне ниже температуры, при которой любой одноатомный азот может взаимодействовать с трубопроводом для образования нитрида. 2 с. и 9 з.п.ф-лы, 3 ...

用于氨氧化反应器的进料分布器设计

通过使用气密性快速断开配件将分布器的各个部段附连到彼此以及反应器的壁来方便更换在商用氨氧化反应器中使用的进料分布器的不同部段。此外，在这些分布器部段中支管管道的直径以及附连到这些支管的进料喷嘴的直径被改变以有利于通过这些部件的进料气体的均匀流动。分布器可被细分成布置用于更好的反应器控制的多个进料分布器部段。最后，端接于分布器支管管道的远端的端盖可设有喷嘴，以用于去除可能非故意地到达分布器内部的任何氨氧化催化剂。

Gas distribution plate, fluidization device, and reaction method

Disclosed is a gas distribution plate, comprising a metal plate, central openings and peripheral openings, wherein a ratio D1/D1' of the aperture diameter D1 (expressed in a unit of mm) of the central opening to the aperture diameter D1' (expressed in a unit of mm) of the peripheral opening satisfies the relation of 1.10 ≥ D1/D1' > 1.00. A fluidizing device comprising the gas distribution plate and application of the fluidizing device in an oxidation or ammoxidation reaction process are also disclosed. The gas distribution plate has an advantage of uniform gas distribution.

Preparation of acrylonitrile

An improved process for the preparation of acrylonitrile by the reaction of propylene, ammonia and oxygen in a fluidized catalyst bed in which the propylene and ammonia are premixed and fed in downwardly streams that are directly aligned with upwardly directed streams of an oxygen containing gas under conditions such that there is complete mixing of the gas streams prior to the gases having significant contact with the catalyst.

Apparatus for producing dip-unsaturated nitrile

내용 없음. No content.

Process for Producing α,β-Unsaturated Nitrile

본 발명은 반응기의 총 접촉 시간을 통해 메탄올 및 산소 함유 기체를 공급하는 단계 및 미반응 암모니아를 메탄올 및 산소 함유 기체와 반응시키는 단계를 갖는, 상업적인 유동화 반응기 내에서 프로필렌, 이소부틸렌 또는 3급-부틸 알콜로부터 α,β-불포화 니트릴을 제조하는 방법에 관한 것으로, 이 방법에서는 니트릴의 수율을 감소시키지 않고 미반응 암모니아의 양을 감소시킬 수 있으며, 3 m 또는 그 이상의 내부 직경을 갖고, 실리카 상에 지지된 몰리브덴-비스무트 촉매로 충전된 상업적인 유동화 반응기 내에서 메탄올 분산 노즐의 공급 개구가 산화 몰리브덴으로 막히는 것을 방지하여 미반응 암모니아의 양을 일정하게 감소시킬 수 있는, 상기의 제조를 수행할 수 있는 상업적인 방법에 관한 것이다. 상기 첫 번째 방법은 프로필렌, 이소부틸렌 또는 3급-부틸 알콜을 고온에서 유동상 촉매를 사용하여 기체 상으로 암모니아 및 산소 함유 기체와 촉매적으로 반응시켜, 출발 물질인 프로필렌, 이소부틸렌 또는 3급-부틸 알콜과 동일한 탄소 원자수를 갖는 α,β-불포화 니트릴을 형성하는 방법으로, 여기서 출발 물질을 공급하는 시점으로부터 총 접촉 시간의 ½ 내지 9/10에 해당하는 위치에서 기체 분산 노즐을 통해 메탄올 및 산소 함유 기체가 공급된다. 두 번째 방법은 메탄올을 동일한 기체 분산 노즐을 통하여 증기와 함께 공급함으로써 촉매가 분산 노즐에 부착되는 것을 방지하고 분산 노즐에 부착된 촉매를 제거하는, 상술한 바와 같은 α,β-불포화 니트릴의 제조 방법이다. The present invention provides propylene, isobutylene or tertiary in a commercial fluidization reactor having the step of feeding methanol and oxygen containing gas through the total contact time of the reactor and the reaction of unreacted ammonia with methanol and oxygen containing gas. A method for preparing α, β-unsaturated nitrile from butyl alcohol, in which it is possible to reduce the amount of unreacted ammonia without reducing the yield of nitrile, having an internal diameter of 3 m or more, on silica In the commercial fluidization reactor packed with the molybdenum-bismuth catalyst supported on the above, the preparation of the above can be carried out, which can prevent the supply opening of the methanol dispersion nozzle from clogging with molybdenum oxide, thereby uniformly reducing the amount of unreacted ammonia. It relates to a commercial method. The first method is to catalytically react propylene, isobutylene or tert-butyl alcohol with gaseous ammonia and oxygen-containing gas in the gas phase using a fluidized bed catalyst at high temperature so that starting material propylene, isobutylene or 3 A method of forming an α, β-unsaturated nitrile having the same number of carbon atoms as the tert-butyl ...

高效氨氧化方法和混合金属氧化物催化剂

本发明涉及生产丙烯腈、乙腈和氰化氢的方法和新的催化剂，其特征在于在所述方法中通过所述催化剂生产的丙烯腈、乙腈和氰化氢的相对收率，对所述相对收率的限定如下：α=[(%AN+(3x%HCN)+(1.5x%ACN))÷%PC]×100，其中：%AN是丙烯腈收率并且%AN≥81，%HCN是氰化氢收率，%ACN是乙腈收率，%PC是丙烯转化率，并且α大于100。

Composite oxide catalyst, method for producing same, and method for producing unsaturated nitrile

본 발명의 복합 산화물 촉매는, 프로판 또는 이소부탄의 기상 접촉 산화 반응 또는 기상 접촉 암모산화 반응에 이용되고, 조성식 Mo 1 V a Sb b Nb c W d Z e O n (식 중, 성분 Z는 La, Ce, Pr, Yb, Y, Sc, Sr, Ba로부터 선택되는 1종류 이상의 원소이고, a, b, c, d, e, n은 각 원소의 원자비를 나타내고, 0.1≤a<0.2, 0.15≤b≤0.5, 0.01≤c≤0.5, 0≤d≤0.4, 0≤e≤0.2이고, 0.60<a/b<1.00이다.)으로 표시되는 복합 산화물을 포함한다. 그리고, 본 발명의 복합 산화물 촉매를 상기 반응에 이용하면, CO 2 및 CO의 생성을 억제하고, 불포화 니트릴의 수율을 향상시킬 수 있다. The complex oxide catalyst of the present invention is used in a gas phase catalytic oxidation reaction or a gas phase catalytic catalytic oxidation reaction of propane or isobutane and has a composition formula Mo 1 V a Sb b Nb c W d Z e O n A, b, c, d, e, and n represent the atomic ratios of the respective elements, and 0.1? A <0.2 and 0.15 B? 0.5, 0.01? C? 0.5, 0? D? 0.4, 0? E? 0.2 and 0.60 <a / b <1.00). When the complex oxide catalyst of the present invention is used for the above reaction, the production of CO 2 and CO can be suppressed and the yield of the unsaturated nitrile can be improved.

Method of polymerization inhibition during isolation and purification of unsaturated mononitriles

FIELD: chemistry. SUBSTANCE: the scope of invention covers economically feasible methods of isolation and purification of valuable nitrogen-containing organic compounds obtained by catalytic ammoxidation of at least one original compound selected from the group consisting of propane, propylene, isobutane and isobutylene in the presence of ammonia with production of gaseous product. The methods described in invention include cooling of gas flow leaving reactor with water-containing liquid coolant; production of water solution containing relevant unsaturated mononitrile, hydrocyanic acid and other organic products; and application of integrated sequence of distillations and phase separations to isolate for recycling useful water-containing liquid and production of desired nitrogen-containing products. EFFECT: maintenance of effective quantity to inhibit polymerisation. 30 cl, 1 dwg, 3 ex ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2 324 677 (13) C2 (51) ÌÏÊ C07C 253/24 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2005120625/04, 12.11.2003 (72) Àâòîð(û): ÐÎÓÇÅÍ Áðþñ È. (US), ÔÅÐÒ Áðþñ Å. (US) (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 12.11.2003 (73) Ïàòåíòîîáëàäàòåëü(è): ÈÍÅÎÑ ÞÝñÝÉ ÝëÝëÑè (US) R U (30) Êîíâåíöèîííûé ïðèîðèòåò: 04.12.2002 US 10/309,962 (43) Äàòà ïóáëèêàöèè çà âêè: 20.01.2006 (45) Îïóáëèêîâàíî: 20.05.2008 Áþë. ¹ 14 2 3 2 4 6 7 7 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: US 4720566 À, 19.01.1988. US 6403850 B1, 11.06.2002. RU 2077528 C1, 20.04.1997. (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 04.07.2005 2 3 2 4 6 7 7 R U (87) Ïóáëèêàöè PCT: WO 2004/052842 (24.06.2004) C 2 C 2 (86) Çà âêà PCT: US 03/036060 (12.11.2003) Àäðåñ äë ïåðåïèñêè: 119034, Ìîñêâà, Ïðå÷èñòåíñêèé ïåð., ä.14, ñòð.1, Ãîóëèíãç Èíòåðíýøíë Èíê., ïàò.ïîâ. Â.Í.Äåìåíòüåâó (54) ÑÏÎÑÎÁ ÈÍÃÈÁÈÐÎÂÀÍÈß ÏÎËÈÌÅÐÈÇÀÖÈÈ ÂÎ ÂÐÅÌß ÂÛÄÅËÅÍÈß È Î×ÈÑÒÊÈ ÍÅÍÀÑÛÙÅÍÍÛÕ ÌÎÍÎÍÈÒÐÈËΠ(57) ...

Method of producing an oxide catalyst and a method of producing an unsaturated nitrile

FIELD: chemistry. SUBSTANCE: invention relates to a method of producing an oxide catalyst and a method of producing an unsaturated nitrile. Method of producing oxide catalyst for gas-phase catalytic ammoxidation of propane or isobutane and containing Mo, V, Sb, Nb and silica, includes a step of preparing the starting material, comprising a sub-stage (I) for preparing an aqueous liquid mixture (A) containing Mo, V and Sb; substage (II) for adding hydrogen peroxide to an aqueous liquid mixture (A), thereby promoting oxidation of the aqueous liquid mixture (A) and obtaining an aqueous liquid mixture (A'); and substage (III) mixing aqueous liquid mixture (A'), Nb-containing initial liquid material (B) and initial carrier material containing silica, and thereby obtaining aqueous liquid mixture (C); a step for drying an aqueous liquid mixture (C) and thereby obtaining a dry powder and a step for calcining dry powder in an atmosphere of an inert gas, where time elapsed from adding hydrogen peroxide to the aqueous liquid mixture (A) until mixing with it of an Nb-containing starting liquid material (B) is less than 5 minutes, and aqueous liquid mixture (A') before exposure of substage (III) has oxidation-reduction potential of 150–350 mV. Method of producing acrylonitrile involves a step for producing an oxide catalyst using the above described method of producing an oxide catalyst and a step for producing acrylonitrile, wherein a gas-phase catalytic ammoxidation reaction of propane or isobutane is carried out in the presence of the obtained oxide catalyst to thereby obtain acrylonitrile in accordance therewith. EFFECT: providing a method by which an oxide catalyst which provides high output of an unsaturated nitrile can be obtained without the need to introduce complex steps and modifying agents. 5 cl, 16 ex, 1 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) (19) RU (11) (13) 2 702 126 C1 (51) МПК B01J 37/04 (2006.01) B01J 37/ ...

制丙烯腈过程中消除氮化的方法

在由相应的链烯，氨和氧制不饱和腈的过程中，为明显消除，优选完全消除在流化床催化反应器进料导管上形成氮化物的一种改进的方法包括维持导管内氨的温度低于其离解温度和/或维持导管的内表面温度低于单原子氮能和导管反应形成氮化物的温度。

유동상 암모산화 반응 촉매 및 아크릴로니트릴의 제조 방법

본 발명은 실리카와 금속 산화물을 포함하고, 상기 실리카 및 금속 산화물의 복합체가 하기 일반식(1)으로 표시되는 유동상 암모산화 반응 촉매에 관한 것이다: Mo 12 Bi a Fe b Ni c Co d Ce e Cr f X g O h /(SiO 2 ) A …(1) (식(1) 중, X는 K, Rb 및 Cs로 이루어지는 군에서 선택되는 적어도 하나의 원소를 나타내며, 0.1≤a≤1, 1≤b≤3, 1≤c≤6.5, 1≤d≤6.5, 0.2≤e≤1.2, f≤0.05 및 0.05≤g≤1을 만족하고, h는 실리카를 제외한 각 구성 원소의 원자가를 만족하고, A는 실리카의 함유량(질량%)을 나타내며, 35≤A≤48을 만족하고, 하기 식(2), 식(3) 및 식(4)으로부터 산출되는 α, β 및 γ의 값이 0.03≤α≤0.08, 0.2≤β≤0.4 및 0.5≤γ≤2를 만족한다.) α=1.5 a/(1.5(b+f)+c+d)…(2) β=1.5(b+f)/(c+d)…(3) γ=d/c…(4)

Fluid bed reactor and method of producing nitrile compound using same

반응기의 내벽의 오목부에 촉매가 퇴적하는 것을 방지하여 장치의 열화나 반응에 미치는 악영향을 방지한다. 나아가 반응기의 내벽의 오목부에 퇴적한 촉매의 외기 접촉에 의한 급격한 발열을 방지한다. 또한, 반응기 내부의 돌출부에 촉매 입자가 퇴적하는 것을 방지하여 장치의 재질 열화나 반응에 미치는 악영향을 방지한다. 나아가 반응기의 돌출부에 퇴적한 촉매 입자의 외기 접촉에 의한 급격한 발열을 방지한다. The catalyst is prevented from accumulating in the concave portion of the inner wall of the reactor to prevent the deterioration of the apparatus and adverse effects on the reaction. And further prevents rapid heat generation due to outside air contact of the catalyst deposited on the concave portion of the inner wall of the reactor. Further, catalyst particles are prevented from accumulating on protrusions inside the reactor, thereby preventing adverse effects on material deterioration and reaction of the apparatus. Furthermore, the catalyst particles deposited on the protruding portion of the reactor are prevented from generating rapid heat due to outside air contact.

Fluid bed reactor and method of producing nitrile compound using same

반응기의 내벽의 오목부에 촉매가 퇴적하는 것을 방지하여 장치의 열화나 반응에 미치는 악영향을 방지한다. 나아가 반응기의 내벽의 오목부에 퇴적한 촉매의 외기 접촉에 의한 급격한 발열을 방지한다. 또한, 반응기 내부의 돌출부에 촉매 입자가 퇴적하는 것을 방지하여 장치의 재질 열화나 반응에 미치는 악영향을 방지한다. 나아가 반응기의 돌출부에 퇴적한 촉매 입자의 외기 접촉에 의한 급격한 발열을 방지한다. The catalyst is prevented from accumulating in the concave portion of the inner wall of the reactor to prevent the deterioration of the apparatus and adverse effects on the reaction. And further prevents rapid heat generation due to outside air contact of the catalyst deposited on the concave portion of the inner wall of the reactor. Further, catalyst particles are prevented from accumulating on protrusions inside the reactor, thereby preventing adverse effects on material deterioration and reaction of the apparatus. Furthermore, the catalyst particles deposited on the protruding portion of the reactor are prevented from generating rapid heat due to outside air contact.

流化床反应器及使用其的腈化合物的制造方法

本发明防止触媒堆积于反应器的内壁的凹部，而防止装置的劣化或对反应的不良影响。进而，防止堆积于反应器的内壁的凹部的催化剂因接触外部空气而急遽发热。此外，防止催化剂颗粒堆积于反应器内部的突出部，而防止装置的材质劣化或对反应的不良影响。进而，防止堆积于反应器的突出部的催化剂颗粒因接触外部空气而急遽发热。

A fluidized bed reactor and a method for producing a nitrile compound using the same

流化床反應器及使用其的腈化合物的製造方法

本發明防止觸媒堆積於反應器的內壁的凹部，而防止裝置的劣化或對反應的不良影響。進而，防止堆積於反應器的內壁的凹部的觸媒因接觸外部空氣而急遽發熱。此外，防止觸媒粒子堆積於反應器內部的突出部，而防止裝置的材質劣化或對反應的不良影響。進而，防止堆積於反應器的突出部的觸媒粒子因接觸外部空氣而急遽發熱。

유동층 반응기 및 이것을 이용한 니트릴 화합물의 제조 방법

반응기의 내벽의 오목부에 촉매가 퇴적하는 것을 방지하여 장치의 열화나 반응에 미치는 악영향을 방지한다. 나아가 반응기의 내벽의 오목부에 퇴적한 촉매의 외기 접촉에 의한 급격한 발열을 방지한다. 또한, 반응기 내부의 돌출부에 촉매 입자가 퇴적하는 것을 방지하여 장치의 재질 열화나 반응에 미치는 악영향을 방지한다. 나아가 반응기의 돌출부에 퇴적한 촉매 입자의 외기 접촉에 의한 급격한 발열을 방지한다.

於流體床反應器填充觸媒的方法及腈化合物的製造方法

本發明抑制向反應器外飛散的觸媒量，且以更短時間進行觸媒的填充。本發明的觸媒填充方法包括如下步驟：將流體床反應器的有效剖面積設為B[m2 ]、將流體床反應器內的溫度設為T[℃]、將導入至流體床反應器的氣體的總流量設為F[Nm3 /h]、將流體床反應器內的塔頂壓力設為P[kPa]，並代入至下述式（1），以所得到的流體床反應器內的氣體流速U[m/s]，開始向流體床反應器內填充觸媒，然後使U增加。 U=(F/B×((273+T)/273)/((101+P)/101))/3600  式（1）

Pressure drop control system and pressure drop control method for feed distributor of fluidized bed reactor

유동층 반응기 (100)의 공급 분배기 (10)의 압력 강하 제어 시스템 및 압력 강하 제어 방법이 개시된다. 상기 시스템은 공급 분배기(10)의 제1 압력 측정 포트 (2)와 제2 압력 측정 포트 (3) 사이의 압력 강하를 측정하도록 구성된 측정 유닛 (5), 상기 유동층 반응기의 반응기 벽 근처의 상기 공급 분배기의 유입관 내에 위치하는 제1 압력 측정 포트 (4), 및 상기 유동층 반응기(100)의 공기 분배 판(6)과 상기 공급 분배기(10)의 노즐의 기체 배출구 사이의 상기 반응기 벽(4) 영역에 위치하는 제2 압력 측정 포트 (3); 상기 측정 유닛 (5)과 신호 통신을 수행하고 상기 압력 강하에 관한 신호를 수집하도록 구성된 이송 유닛; 및 상기 압력 강하에 관한 신호에 기초하여 상기 공급 분배기(10)가 정상적으로 작동하는지 여부를 결정하도록 구성된 처리 유닛을 포함한다. A pressure drop control system and a pressure drop control method in a feed distributor (10) of a fluidized bed reactor (100) are disclosed. The system comprises a measuring unit (5) configured to measure a pressure drop between a first pressure measuring port (2) and a second pressure measuring port (3) of a feed distributor (10), the feed near the reactor wall of the fluidized bed reactor a first pressure measuring port (4) located in the inlet tube of the distributor, and the reactor wall (4) between the air distribution plate (6) of the fluidized bed reactor (100) and the gas outlet of the nozzle of the feed distributor (10) a second pressure measurement port (3) located in the region; a conveying unit configured to perform signal communication with the measuring unit (5) and to collect a signal regarding the pressure drop; and a processing unit configured to determine whether the supply distributor 10 is operating normally based on the signal regarding the pressure drop.

Improved selective ammoxidation catalyst

Method for oxidation amination of alkanes

FIELD: chemical industry. SUBSTANCE: alkane is used as reagent 1, ammonia is used as reagent 2, oxygen being used as reagent 3. Reaction is carried out at 350-550 C and pressure 1-6 atm. Gas diluent (e.g. vapor) is used. Reaction is carried out in the presence of catalyst having common formula Mo a V b M c O x , where M is Mn, Zn, Co. EFFECT: improves efficiency of method. 8 cl, 2 dwg, 4 tbl Д7090сС ПЧ Го (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ "” 2060 247 ' ТМК С 07С 253/24, 255/00 13) СЛ 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 92004546/04, 15.12.1992 (30) Приоритет: 16.12.1991 ЕК 9115843 (46) Дата публикации: 20.05.1996 (56) Ссылки: Патент Франции М 21194592, кл. С 07С12000, 04.08.72. Патент Франции М 2027238, кл. С 07С 120100, 25.09.70.2. Патент Франции М 2072334, кл. С 07С12000, 1970. Патент Франции М 2072399, кл. С 07С120/00, 1970. Патент США М 3833638, кл. С 07С121/0.2, 03.09.74. Патент Франции М 2119493, кл. С 07С12000, 04.08.72. Спет.ГеЁег$, 1989, р.2173-2176. (71) Заявитель: Рон-Пуленк Шими (ЕК) (72) Изобретатель: Жильбер Бланшар[ЕК], Елизабет Борде[ЕК], Жильбер Ферр[!ЕК] (73) Патентообладатель: Рон-Пуленк Шими (ЕК) (54) СПОСОБ ОКИСЛИТЕЛЬНОГО АМИНИРОВАНИЯ АЛКАНОВ (57) Реферат: Использование: В химической промышленности. — Сущность: получение ненасыщенных нитрилов. Реагент 1: алкан. Реагент 2: аммиак. Реагент 3: кислород. Условия реакции: 350 - 550°С, давление 1 - 6 атм, газ-разбавитель, возможно водяной пар, катализатор Мо.\МьМсОх, где М - Мп, Гп, СО. 73. п. ф-лы, 2 ил., 4 табл. 2060247 С1 КО Д7090сС ПЧ Го КУЗЗАМ АСЕМСУ ГОК РАТЕМТ$ АМО ТКАОЕМАКК$ (19) 13) ВО’ 2060 247 ^^ Сл (51) 1пЕ. С1.6 С 07С 253/24, 255/00 12) АВЗТКАСТ ОЕ 1МУЕМТОМ (21), (22) АррИсаНоп: 92004546/04, 15.12.1992 (71) АррисапЕ (30) Рпошу: 16.12.1991 ЕВ 9115843 (46) Рае о! рибИсаНоп: 20.05.1996 Коп-Рщепк эпити (ЕК) (72) пуетщог. — 7ПИБег Вапзпаг[ЕК], Е|хаБе Вогае[ЕК], П!’Бег Еег[ЕК] (73) Ргорпеюг: Коп-Рщепк ЭПитт (ЕК) (54) МЕТНОО РОК ...

Method for Eliminating Nitrification During Preparation of Acrylonitrile

해당 올레핀, NH 3 및 산소로부터 불포화 니트릴을 제조하는데 사용되는 유동상 촉매반응기를 위한 공급 도관에서 질화물의 생성을 실질적으로, 바람직하게는 완전히 제거하는 개량된 공정은 도관내의 암모니아의 온도가 그 해리온도 이하로 유지되며, 도관 내면의 온도가 임의의 단원자 질소가 도관과 반응하여 질화물을 생성하는 온도 이하로 유지되는 단계를 포함한다. An improved process for substantially, preferably completely removing, the formation of nitrides in the feed conduit for the fluidized bed catalytic reactor used to make unsaturated nitriles from the olefins, NH 3 and oxygen is such that the temperature of the ammonia in the conduits Maintained below, and wherein the temperature of the conduit inner surface is maintained below the temperature at which any monoatomic nitrogen reacts with the conduit to produce nitride.

Method for purifying acrylonitrile

증류탑과, 상기 증류탑에 접속된, 탑정 가스의 응축기를 갖는 증류 장치를 이용하여 아크릴로니트릴, 시안화수소 및 물을 포함하는 용액을 증류하는 공정을 포함하는 아크릴로니트릴의 정제 방법으로서, 상기 증류탑의 피드단보다 상부와 상기 증류탑의 최상단보다 하부에 위치하는 온도 제어단의 온도를 일정하게 유지하는 공정을 포함하는 방법을 제공한다. A process for purifying acrylonitrile comprising distillation and a process for distilling a solution comprising acrylonitrile, hydrogen cyanide and water using a distillation apparatus connected to the distillation column and having a condenser of a topping gas, And a step of keeping the temperature of the temperature control stage located above the feed end and below the upper end of the distillation column at a constant level.

Synthesis of MoVNbTe Catalyst with Reduced Niobium and Tellurium Content and Higher Activity for Oxidative Dehydrogenation of Ethane

본 발명은 몰리브덴, 바나듐, 니오븀 및 텔루륨 원소를 포함하는 혼합 산화물 재료로서, Cu-Kα 방사선의 존재하에 XRD에서 회절 반사 h, i, k 및 l를 갖고, 상기 회절 반사가 대략 회절 각 (2θ) 26.2°±0.5°(h), 27.0°±0.5°(i), 7.8°±0.5°(k) 및 28.0°±0.5°(l)에서 피크를 갖고, Mo 1 V a Nb b Te c O n (I) (여기서, a = 0.2 내지 0.35, b = 0 초과 내지 0.08, c = 0 초과 내지 0.08, n = (I)에서 산소 이외의 원소들의 원자가 및 존재비에 의해 결정된 정수)를 특징으로 하는, 혼합 산화물 재료에 관한 것이다. The present invention is a mixed oxide material comprising the elements molybdenum, vanadium, niobium and tellurium, which has diffractive reflections h, i, k and 1 in XRD in the presence of Cu-Kα radiation, wherein the diffraction reflection is approximately at a diffraction angle (2θ) ) with peaks at 26.2°±0.5°(h), 27.0°±0.5°(i), 7.8°±0.5°(k) and 28.0°±0.5°(l), Mo 1 V a Nb b Te c O n (I) (where a = 0.2 to 0.35, b = greater than 0 to 0.08, c = greater than 0 to 0.08, n = an integer determined by the valence and abundance of elements other than oxygen in (I)) , to a mixed oxide material.

Highly effective method for ammoxidation and catalysts based on mixed metal oxides

FIELD: chemistry. SUBSTANCE: method includes bringing propylene, ammonia and oxygen in contact in a steam phase under higher temperature in the presence of a catalyst. The said catalyst represents a complex of metal oxides, in which the ratio of elements is expressed by formula Mo 12 Bi a Fe b A c D d E e F f G g Ce h O x . In the formula A stands for the element, selected from the group, consisting of sodium, potassium, rubidium and caesium; D stands for the element, selected from the group, consisting of nickel, cobalt, manganese, zinc, magnesium, calcium, strontium, cadmium and barium, E stands for the element, selected from the group, consisting of chromium, tungsten, boron, aluminium, gallium, indium, phosphorus, arsenic, antimony, vanadium and tellurium; F stands for the element, selected from the group, consisting of a rare earth element, titanium, zirconium, hafnium, niobium, tantalum, aluminium, gallium, indium, thallium, silicon, germanium and lead; G stands for the element, selected from the group, consisting of silver, gold, ruthenium, rhodium, palladium, osmium, iridium, platinum and mercury; a has a value from 0.05 to 7, b - from 0.1 to 7, c - from 0.01 to 5, d - from 0.1 to 12, e - from 0 to 5, f - from 0 to 5, g - from 0 to 0.2, h - from 0.01 to 5 and x stands for the number of oxygen atoms, required to saturate the valence of other present elements. 0.15≤(a+h)/d≤1 and 0.8≤h/b≤5, and the relative outputs of alkylonitrile, acetonitrile and hydrogen cyanide, obtained by the claimed method, are determined by the equation α=[(%AN+(3×%HCN)+(1.5×%ACN))÷%PC]×100, where %AN stands for acrylonitrile output and %AN≥82, %HCN stands for hydrogen cyanide output, %ACN stands for acetonitrile output, %PC stands for propylene conversion and where α is larger than 100. The invention also relates to a catalytic composition for obtaining acrylonitrile, acetonitrile and hydrogen cyanide. EFFECT: method makes it possible to increase acrylonitrile, acetonitrile and ...

Multicomponent oxide catalyst, method of making and same method of producing unsaturated nitrile

FIELD: chemistry. SUBSTANCE: invention relates to a multicomponent oxide catalyst, which is used for vapour-phase catalytic oxidation reaction or catalytic vapour-phase ammoxidation of propane or isobutane. Said catalyst contains a multicomponent oxide, composition of which has following formula (1): Mo 1 V a Sb b Nb c W d Z e O n (1), wherein component Z is Ce; a, b, c, d, e and n represent atomic ratio of elements; and 0.1≤a≤0.195, 0.15≤b≤0.5, 0.01≤c≤0.5, 0<d≤0.4, 0<e≤0.2 and 0.60<a/b<0.85. Invention also discloses a method of producing a multicomponent oxide catalyst and method of producing unsaturated nitrile. EFFECT: multicomponent oxide catalyst can inhibit formation of CO 2 and CO and increases output of unsaturated nitrile during introduction of propane or isobutane in vapour-phase catalytic ammoxidation. 5 cl, 1 tbl, 17 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C07C 253/24 C07C 255/08 B01J 23/30 B01J 37/04 B01J 37/08 (13) 2 601 990 C1 (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2015109718/04, 13.09.2013 (24) Дата начала отсчета срока действия патента: 13.09.2013 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ИСИИ Юсуке (JP), КАДОВАКИ Минору (JP), КАТО Такааки (JP) 27.09.2012 JP 2012-214867 (45) Опубликовано: 10.11.2016 Бюл. № 31 C 1 C 1 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 27.04.2015 (86) Заявка PCT: JP 2013/074888 (13.09.2013) 2 6 0 1 9 9 0 (87) Публикация заявки PCT: R U 2 6 0 1 9 9 0 (56) Список документов, цитированных в отчете о поиске: WO 2012090979 A1, 05.07.2012. JP 2003320248 A, 11.11.2003;JP 2012077039 A, 19.04.2012;JP 2002219362 A, 06.08.2002;JP 2010523314 A, 15.07.2010. WATANABE et al, Comparative Study on the Catalytic Perfomance of Single-Phase Mo-V-O-Based Metal Oxide Catalysts in Propane Ammoxidation to Acrylonitrile, Ind. Eng. Chem. Res., 2006, v. 45, No. 2, p. (см. прод.) R U ...

Method of producing ammoxidation catalyst and a method of producing acrylonitrile

FIELD: chemical or physical processes. SUBSTANCE: invention relates to a method of producing an ammoxidation catalyst, wherein the ammoxidation catalyst has a composition represented by following formula (1): Mo 12 Bi a Fe b X c Y d Z e O f (1), where X is at least one element selected from the group consisting of nickel, cobalt, magnesium, calcium, zinc, strontium and barium; Y is at least one element selected from a group, consisting of cerium, chromium, lanthanum, neodymium, yttrium, praseodymium, samarium, aluminum, gallium and indium; Z is at least one element selected from a group consisting of potassium, rubidium and cesium; provided that in element X cobalt content is 20 atomic % or more and/or fraction of magnesium is 20 atomic % or less; a, b, c, d and e satisfy conditions 0.1≤a≤2.0; 0.1≤b≤3.0; 0.1≤c≤10.0; 0.1≤d≤3.0 and 0.01≤e≤2.0; respectively; and f is the number of oxygen atoms required to satisfy atomic valence requirements of other elements present in the formula, where said method comprises: step (i) for preparing a suspension of starting material containing molybdenum, bismuth, iron and a carboxylic acid compound; stage (ii) of mixing initial material suspension at temperature in range from 30 to 45 °C for 20 minutes to 8 hours, thereby obtaining a precursor suspension; spray drying the precursor suspension to obtain dry particles; and the dried particles burning stage, wherein the precursor suspension has viscosity of 1 to 100 cP. Invention also relates to methods of producing acrylonitrile and an ammoxidation catalyst for producing acrylonitrile. EFFECT: technical result consists in obtaining an ammoxidation catalyst, which enables to obtain high yield of acrylonitrile and has resistance to abrasion. 7 cl, 2 tbl, 49 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 729 070 C2 (51) МПК B01J 37/08 (2006.01) B01J 37/04 (2006.01) B01J 37/00 (2006.01) B01J 23/887 (2006.01) C07C 253/26 (2006.01) C07C 255/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ ...

Process for the production of oxides

An improved process is provided for the production of oxides from hydrocarbons by reaction with oxygen, air or a gas enriched in oxygen relative to air, preferably the latter in the presence of an oxidation catalyst. An alkane, e.g. propane, is converted to an alkene in a catalytic dehydrogenator. The product stream is introduced into an oxidation reactor. The product formed therein is recovered in a conventional quench tower. The gaseous effluent from the quench tower is treated in a separator to produce an adsorbed stream, an oxygen-enriched stream, a waste stream and, if desired, a hydrogen-enriched stream. The oxygen-enriched stream may be recycled to the oxidation reactor depending on the nitrogen content thereof. The adsorbed stream plus at least a portion of the hydrogen-enriched stream is introduced into a selective oxidation unit to remove the remaining oxygen and then recycled to the dehydrogenator. The remainder of the hydrogen-enriched stream, if any, may be taken as product or vented. The dehydrogenator may be a multistage dehydrogenator wherein the product stream is withdrawn from a reactor other than the first and last reactors, the recycle streams are introduced into the next sequential reactor and the effluent from the last reactor is introduced into the first reactor, a reactor having a similar alkane composition or directly into the oxidation reactor.

The feed distributor of the fluidized-bed reactor reacted for ammoxidation

本发明涉及一种用于氨氧化反应的流化床反应器原料气进料分布器。一种用于氨氧化反应的流化床反应器原料气进料分布器，包括：用于连接原料气入口的主管和与所述主管流体连通的用于分流原料气的支管，主管或支管上具有用于原料气进料的锐孔，其中，在沿原料气流动方向上，主管或支管上的任意一个锐孔的孔径等于或大于紧邻的上游侧锐孔的孔径。根据本发明的用于丙烯氨氧化反应的流化床反应器的丙烯氨进料分布器，通过与导管内的气体温度、压力相关联，来合理的确定锐孔孔径，能够使丙烯氨更加均匀进入流化床反应器内部，从而明显地提高丙烯腈的收率和丙烯的转化率，并显著抑制副反应，降低了CO 2 的量。

Improved cyclone configuration for ammoxidation reactor

An ammoxidation reactor includes an outer ring of sets of multistage cyclones suspended in the reactor. Each multistage set of cyclones includes a first stage cyclone having a first stage inlet configured to receive a reactor stream flowing up from a fluidized catalyst bed in the reactor and separate at least a portion of catalyst from the reactor stream. A ratio of square meter of first stage inlet area per square meter of available cross sectional area of the reactor is about 0.03 to about 0.05. An ammoxidation process includes reacting a hydrocarbon stream in a fluidized catalyst bed in a reactor to produce a reactor stream. The process further includes separating catalyst from the reactor stream in an outer ring of sets of multistage cyclones, each multistage set of cyclones including a first stage cyclone having a first stage inlet configured to receive a reactor stream flowing up from a fluidized catalyst bed in the reactor and separate at least a portion of catalyst from the reactor stream. A ratio of cyclone inlet velocity in meters/second to a reactor effluent velocity in meters/second is 15 or greater.

Method of producing mixed oxide catalyst for making acrylonitrile or metacrylonitrile (versions)

FIELD: process engineering. SUBSTANCE: invention relates to catalyst of producing acrylonitrile or metacrylonitrile from propane or isobutane. Proposed mixed oxide catalyst is obtained via oxidative ammonolysis in gas phase. Said catalyst comprises the following elements: Molybdenum (Mo), vanadium (V), niobium (Nb), oxygen (O) and, at least one element selected from the group consisting of stibium (Sb) and tellurium (Te). Proposed method comprises heating of precursor solid mix containing compounds of molybdenum, vanadium, niobium, oxygen and, at least one element selected from the group consisting of stibium and tellurium in contact with gas flow at first heating rate of about 15°C/min unless said precursor solid mix reaches the temperature of preliminary calcination not exceeding 400°C. Besides, and not obligatorily, it includes bringing precursor solid mix in contact with hot zone at the temperature higher than approx. 100°C. Note here that said precursor is described by the following formula: Mo 1 V a Sb b Te c Nb d O n , where 0.1≤a≤1.0, 0≤b≤1.0, 0≤c≤1.0, 0.001≤d≤0.25; n stands for quantity of oxygen atoms required for saturation of valency of all other elements of mixed oxide provided that one or several other elements may exist in lower oxidation state compared to maximum oxidation; a, b, c and d are relationships between mole number of appropriate elements and that of Mo. EFFECT: new efficient process of making mixed oxide catalyst. 24 cl, 3 dwg, 2 tbl, 15 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 483 800 (13) C2 (51) МПК B01J 37/08 (2006.01) B01J 35/00 (2006.01) C07C 253/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010127157/04, 02.12.2008 (24) Дата начала отсчета срока действия патента: 02.12.2008 (43) Дата публикации заявки: 10.01.2012 Бюл. № 1 (73) Патентообладатель(и): ИНЕОС ЮЭсЭй ЭлЭлСи (US) 2 4 8 3 8 0 0 (45) Опубликовано: 10.06.2013 Бюл. № 16 (56) Список документов, цитированных ...

Method for Producing Ammoxidation Catalyst

본 발명은 유기 화합물의 가암모니아 산화, 특히 프로필렌의 가암모니아 산화에 의한 아크릴로니트릴의 합성에 유용한 촉매의 제조 방법을 제공하는 것을 목적으로 한다. It is an object of the present invention to provide a process for preparing a catalyst useful for the synthesis of acrylonitrile by ammonia oxidation of organic compounds, in particular by ammonia oxidation of propylene. 본 발명은 몰리브덴 (성분 (1))과, 비스무스 (성분 (2))와, 니켈, 코발트, 아연, 마그네슘, 망간 및 구리로 이루어지는 군에서 선택된 1종 이상의 원소 (성분 (3))과, 란탄, 세륨, 프라세오디뮴 및 네오디뮴으로 이루어지는 군에서 선택된 1종 이상의 원소 (성분 (4))를 함유하는 유기 화합물의 가암모니아 산화용 촉매의 제조 방법으로서, 상기 성분 (1)의 원료의 적어도 일부와, 상기 성분 (2)의 원료의 적어도 일부와, 상기 성분 (3)의 원료의 적어도 일부를 포함하고, 상기 성분 (4)의 원료를 포함하지 않는 제1액을 제조하는 제1액 제조 공정과, 상기 제1액에 적어도 상기 성분 (4)의 원료를 첨가하여 제2액을 제조하는 제2액 제조 공정을 가지는 것이다. The present invention relates to molybdenum (component (1)), bismuth (component (2)), at least one element selected from the group consisting of nickel, cobalt, zinc, magnesium, manganese and copper (component (3)), and lanthanum A method for producing a catalyst for ammonia oxidation of an organic compound containing at least one element (component (4)) selected from the group consisting of cerium, praseodymium and neodymium, comprising: at least a part of the raw material of the component (1), A first liquid production step of producing a first liquid containing at least a part of the raw material of the component (2) and at least a part of the raw material of the component (3) and not containing the raw material of the component (4), and It has a 2nd liquid manufacturing process which adds the raw material of the said component (4) at least to a 1st liquid, and manufactures a 2nd liquid. 가암모니아 산화용 촉매, 유동층 반응용 촉매, 실리카졸 Ammoxidation Catalyst, Fluidized Bed Reaction Catalyst, Silica Sol

Method of producing unsaturated nitrile

FIELD: chemical or physical processes.SUBSTANCE: disclosed is a method of producing an unsaturated nitrile when using a fluidised bed reactor having an inner space containing a catalyst, capable of fluidisation inside it; feed opening configured to feed initial gaseous material containing hydrocarbon into inner space; and outlet opening configured to discharge gaseous reaction product from inner space, method includes reaction stage of hydrocarbon reaction of catalytic ammoxidation reaction in vapor phase in presence of catalyst in inner space, to obtain corresponding unsaturated nitrile, where when in inner space, space, where available amount of catalyst per unit volume is 150 kg/mor more, is defined as a thick zone and a space where the available amount of catalyst per unit volume is less than 150 kg/m, determined as a loose zone in the reaction stage, gas stay time in a non-dense zone ranges from 5 to 50 s, and where catalyst has formula (1), where each of a, b, c, d, e and n is atomic fraction of each atom with respect to Mo atom and is within interval 0.01≤a≤1, 0.01≤b≤1, 0.01≤c≤1, 0≤d<1 and 0≤e<1, respectively, and n is a value which satisfies a valence balance, where X is one or more elements selected from a group consisting of Sb and Te, where T is one or more elements selected from a group consisting of Hf, W and Re, where Z is one or more elements selected from a group consisting of La, Ce, Pr and Yb. Formula: MoVNbXTZO(1).EFFECT: providing a method of producing an unsaturated nitrile, in which the unsaturated nitrile can be obtained at high output by controlling decomposition of the unsaturated nitrile obtained in the reactor with a fluidised bed.6 cl, 1 dwg, 3 tbl, 39 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 732 413 C1 (51) МПК C07C 253/24 (2006.01) C07C 255/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C07C 253/24 (2020.02); C07C 255/08 (2020.02) (21)(22) Заявка: 2019102856, 08.06 ...

Catalyst for preparing acryl nitrile

Method for oxidative ammonolysis or oxidation of propane and isobutane

FIELD: chemistry.SUBSTANCE: invention relates to a method for oxidative ammonolysis of a saturated hydrocarbon to obtain an unsaturated nitrile. The method involves preparing a catalytic mixture containing freshly prepared mixed metal oxide catalyst, a spent mixed metal oxide catalyst and an activity modifier, and contacting the saturated hydrocarbon with an oxygen-containing gas and ammonia in the presence of the catalytic mixture. The freshly prepared and spent mixed metal oxide catalysts contain molybdneum, vanadium, niobium and at least one element selected from antimony and tellurium, and optionally contain at least one element selected from lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, tungsten, titanium, tin, germanium, zirconium, lithium and hafnium. The catalysts can optionally contain a support selected from oxides of silicon, aluminium, zirconium, titanium or mixtures thereof. The activity modifier is selected from antimony (III) oxide, antimony (III) oxalate, antimony (III) tartrate, antimony (V) oxide, antimony tetroxide, SbOand mixtures thereof. The invention also relates to a method for oxidative ammonolysis, which involves mechanical mixing of a dry mixed metal oxide catalyst and an activity modifier to form a catalytic mixture and contacting a saturated hydrocarbon with an oxygen-containing gas and ammonia in the presence of said mixture.EFFECT: disclosed methods increase output of the end product.13 cl, 3 tbl, 4 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 495 024 (13) C2 (51) МПК ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ C07C C07C C07C C07C C07C C07C B01J 253/24 (2006.01) 253/26 (2006.01) 255/03 (2006.01) 255/08 (2006.01) 51/215 (2006.01) 57/04 (2006.01) 23/16 (2006.01) ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010118525/04, 07.10.2008 (24) Дата начала отсчета срока действия патента: 07.10.2008 (73) Патентообладатель(и): ИНЕОС ЮЭсЭй ...

Method of producing unsaturated nitrile

FIELD: chemical or physical processes. SUBSTANCE: invention relates to a method of producing an unsaturated nitrile, comprising a reaction step of subjecting a hydrocarbon to catalytic ammoxidation reaction in a vapor phase in the presence of a catalyst in the interior, in order to obtain the corresponding unsaturated nitrile, where when the inner space is divided into two spaces in the form of an upper space, occupying space from cyclone inlet top end to inner space upper end, and bottom space, occupying space below cyclone inlet top end and extending to distribution plate, ratio of available amount of catalyst in upper space per unit volume to available amount of catalyst in lower space per unit volume ranges from 0.05 to 0.45 at reaction stage, wherein catalyst has composition represented by formula below (1): MoV a Nb b X c T d Z e O n (1), where each of the indices a, b, c, d, e and n is atomic fraction of each atom with respect to the Mo atom, and they are within intervals 0.01≤a≤1; 0.01≤b≤1; 0.01≤c≤1; 0≤d<1 and 0≤e<1; and n is a value which satisfies a valence balance, wherein X is Sb, T is W, and Z is Ce. EFFECT: technical result is improved output of unsaturated nitrile. 6 cl, 2 dwg, 1 tbl, 20 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 738 110 C1 (51) МПК C07C 253/24 (2006.01) B01J 23/30 (2006.01) C07B 61/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C07C 253/24 (2020.02); B01J 23/30 (2020.02); C07B 61/00 (2020.02) (21)(22) Заявка: 2019102814, 21.05.2018 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): АСАХИ КАСЕИ КАБУСИКИ КАЙСЯ (JP) Дата регистрации: 08.12.2020 (56) Список документов, цитированных в отчете о поиске: US 4246191 A1, 20.01.1981. JP 2002193906 A, 10.07.2002. WO 2016147950 A1, 22.09.2016. JP 2000258 A, 05.01.1990. RU 2108323 C1, 10.04.1998. RU 2551855 C2, 27.05.2015. 03.07.2017 JP 2017-130390 (45) Опубликовано: 08.12.2020 Бюл. № 34 (85) Дата ...