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RU2009120540A - Формованные пористые элементы из альфа-оксида алюминия и способы их получения - Google Patents

Формованные пористые элементы из альфа-оксида алюминия и способы их получения Download PDF

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Publication number
RU2009120540A
RU2009120540A RU2009120540/04A RU2009120540A RU2009120540A RU 2009120540 A RU2009120540 A RU 2009120540A RU 2009120540/04 A RU2009120540/04 A RU 2009120540/04A RU 2009120540 A RU2009120540 A RU 2009120540A RU 2009120540 A RU2009120540 A RU 2009120540A
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RU
Russia
Prior art keywords
alumina
alpha
fluorine
reactor
introducing
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RU2009120540/04A
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English (en)
Inventor
Стен УОЛЛИН (US)
Стен УОЛЛИН
Джулиана Г. СЕРАФИН (US)
Джулиана Г. СЕРАФИН
Мадан М. БХАСИН (US)
Мадан М. БХАСИН
Стивен Р. ЛАКСО (US)
Стивен Р. ЛАКСО
Кевин Е. ХОВАРД (US)
Кевин Е. ХОВАРД
Питер К. ЛЕБАРОН (US)
Питер К. ЛЕБАРОН
Original Assignee
Дау Глобал Текнолоджиз Инк. (Us)
Дау Глобал Текнолоджиз Инк.
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Publication of RU2009120540A publication Critical patent/RU2009120540A/ru

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    • B01J37/22—Halogenating
    • B01J37/26—Fluorinating
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    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
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Abstract

1. Способ получения формованного пористого элемента, содержащего перекрывающиеся пластинки альфа-оксида алюминия, включающий ! а. подготовку реактора, в котором общее давление можно менять и контролировать; ! b. введение в реактор формованного предшественника элемента, который содержит, по меньшей мере, один предшественник альфа-оксида алюминия; ! с. введение в реактор в качестве фторсодержащего газа в условиях введения фторсодержащего соединения; ! d. установление общего давления внутри реактора приблизительно от 1 до 100000 мм.рт.ст. (1,36·10-3-136 кг/м2); и ! е. контактирование фторсодержащего соединения, по меньшей мере, с частью формованного предшественника элемента при одной или нескольких температурах, при одном или нескольких давлениях в течение одного или нескольких периодов времени, достаточных для превращения, по меньшей мере, 50% предшественника альфа-оксида алюминия в пластинки альфа-оксида алюминия. ! 2. Способ получения формованного пористого элемента, содержащего перекрывающиеся пластинки альфа-оксида алюминия, включающий ! а. подготовку реактора; ! b. введение в реактор формованного предшественника элемента, который содержит, по меньшей мере, один предшественник альфа-оксида алюминия; ! с. нагревание реактора до температуры выше 700°С; ! d. введение в нагретый реактор в качестве фторсодержащего газа при условиях введения фторсодержащего соединения и ! е. контактирование введенного фторсодержащего соединения, по меньшей мере, с частью формованного предшественника элемента, по меньшей мере, при одной температуре выше 700°С, в течение одного или нескольких периодов времени, достаточных для превращения, по

Claims (19)

1. Способ получения формованного пористого элемента, содержащего перекрывающиеся пластинки альфа-оксида алюминия, включающий
а. подготовку реактора, в котором общее давление можно менять и контролировать;
b. введение в реактор формованного предшественника элемента, который содержит, по меньшей мере, один предшественник альфа-оксида алюминия;
с. введение в реактор в качестве фторсодержащего газа в условиях введения фторсодержащего соединения;
d. установление общего давления внутри реактора приблизительно от 1 до 100000 мм.рт.ст. (1,36·10-3-136 кг/м2); и
е. контактирование фторсодержащего соединения, по меньшей мере, с частью формованного предшественника элемента при одной или нескольких температурах, при одном или нескольких давлениях в течение одного или нескольких периодов времени, достаточных для превращения, по меньшей мере, 50% предшественника альфа-оксида алюминия в пластинки альфа-оксида алюминия.
2. Способ получения формованного пористого элемента, содержащего перекрывающиеся пластинки альфа-оксида алюминия, включающий
а. подготовку реактора;
b. введение в реактор формованного предшественника элемента, который содержит, по меньшей мере, один предшественник альфа-оксида алюминия;
с. нагревание реактора до температуры выше 700°С;
d. введение в нагретый реактор в качестве фторсодержащего газа при условиях введения фторсодержащего соединения и
е. контактирование введенного фторсодержащего соединения, по меньшей мере, с частью формованного предшественника элемента, по меньшей мере, при одной температуре выше 700°С, в течение одного или нескольких периодов времени, достаточных для превращения, по меньшей мере, 50% предшественника альфа-оксида алюминия в пластинки альфа-оксида алюминия.
3. Способ изготовления формованного пористого элемента, содержащего перекрывающиеся пластинки альфа-оксида алюминия, и этот способ включает
а. подготовку реактора;
b. введение в реактор формованного предшественника элемента, который содержит, по меньшей мере, один предшественник альфа-оксида алюминия;
с. введение в реактор в качестве фторсодержащего газа в условиях введения фторсодержащего соединения, по существу, не состоящего из фторида водорода и выбранного из группы, включающей (1) фторуглероды, SiF4, BF3, NF3, F2, XeF2, SF6, PF5, CF4, CHF3, C2H2F4 и AlF3; (2) смеси двух или нескольких таких газов; и (3) смеси HF и одного или нескольких из числа фторуглеродов, SiF4, BF3, NF3, F2, XeF2, SF6, PF5, CF4, CHF3, C2H2F4 и AlF3; и
d. контактирование введенного фторсодержащего соединения, по меньшей мере, с частью формованного предшественника элемента, при одной или нескольких температурах и в течение одного или нескольких периодов времени, достаточных для превращения, по меньшей мере, 50% предшественника альфа-оксида алюминия в пластинки альфа-оксида алюминия.
4. Способ модификации поверхностной композиции альфа-оксида алюминия, включающий
а. подготовку реактора;
b. введение в реактор альфа-оксида алюминия, имеющего поверхностную композицию;
с. введение в реактор в качестве фторсодержащего газа в условиях введения фторсодержащего соединения; и
d. контактирование введенного фторсодержащего соединения, по меньшей мере, с частью альфа-оксида алюминия в течение одного или нескольких периодов времени и при одной или нескольких температурах, достаточных для модификации поверхностной композиции альфа-оксида алюминия.
5. Способ модификации поверхностной композиции формованного пористого элемента, содержащего пластинки альфа-оксида алюминия, включающий
а. подготовку реактора;
b. подачу в реактор продукта одной или нескольких стадий е. по п.1 и/или 2, и/или стадии d. по п.3;
с. введение в реактор в качестве фторсодержащего газа в условиях введения фторсодержащего соединения и
d. контактирование введенного фторсодержащего соединения, по меньшей мере, с частью поверхности альфа-оксида алюминия в течение одного или нескольких периодов времени и при одной или нескольких температурах, достаточных для модификации поверхностной композиции альфа-оксида алюминия.
6. Носитель для катализатора эпоксидирования олефина, где носитель
а. содержит, по меньшей мере, 80 мас.% оксида алюминия, и из этого оксида алюминия, по меньшей мере, 90% представляют собой альфа-оксид алюминия, за исключением модификатора;
b. имеет площадь поверхности, по меньшей мере, 1,0 м2/г;
с. имеет пористость, по меньшей мере, 75%; и среднюю прочность при плоскостном сжатии, по меньшей мере, 1 фунт/мм (0,45 кг/мм), измеренную в виде полого цилиндра, имеющего аксиальное цилиндрическое отверстие по длине цилиндра, наружный диаметр 0,26 дюйма (6,60 мм), внутренний диаметр отверстия 0,1 дюйма (2,54 мм) и длину 0,25 дюйма (6,35 мм).
7. Носитель для катализатора эпоксидирования олефина, где носитель
а. содержит, по меньшей мере, 80 мас.% оксида алюминия, и из этого оксида алюминия, по меньшей мере, 90% представляют собой альфа-оксид алюминия, за исключением модификатора;
b. имеет площадь поверхности, по меньшей мере, 1,0 м2/г;
с. имеет пористость, по меньшей мере, 70%; и среднюю прочность при плоскостном сжатии, по меньшей мере, 3,5 фунт/мм (1,6 кг/мм), измеренную в виде полого цилиндра, имеющего аксиальное цилиндрическое отверстие по длине цилиндра, наружный диаметр 0,26 дюйма (6,60 мм), внутренний диаметр отверстия 0,1 дюйма (2,54 мм) и длину 0,25 дюйма (6,35 мм).
8. Перекрывающиеся пластинки альфа-оксида алюминия, имеющие поверхностную композицию, включающую кремнийсодержащие образцы с концентрацией приблизительно от 1 до 20 ат.% кремния, измеренную с помощью рентгеновской фотоэлектронной спектроскопии.
9. Перекрывающиеся пластинки альфа-оксида алюминия, имеющие поверхностную композицию, включающую борсодержащие образцы с концентрацией приблизительно от 1 до 20 ат.% бора, измеренную с помощью рентгеновской фотоэлектронной спектроскопии.
10. Способ по пп.1, 2, 3 или 5, в котором
а. температура, при которой фторсодержащее соединение вводят реактор, содержащий формованный предшественник элемента, является недостаточной, чтобы превратить предшественник альфа-оксида алюминия в пластинки альфа-оксида алюминия;
b. проконтактировавший с фторсодержащим соединением нагретый формованный предшественник элемента, затем нагревают до второй температуры в течение времени, достаточного для того, чтобы введенное фторсодержащее соединение превратило, по меньшей мере, 50% предшественника альфа-оксида алюминия в пластинки альфа-оксида алюминия.
11. Способ по п.1 или 2, также включающий удаление, по меньшей мере, части остающегося фторсодержащего соединения; и
нагревание продукта стадии е. в вакууме до второй температуры в интервале приблизительно от 1050 до 1600°С в течение приблизительно от 1 до 48 ч.
12. Способ по п.3, также включающий удаление, по меньшей мере, части остающегося фторсодержащего соединения; и
нагревание продукта стадии d. в вакууме до второй температуры в интервале приблизительно от 1050 до 1600°С в течение приблизительно от 1 до 48 ч.
13. Способ по любому из пп.1-5, дополнительно включающий удаление, по меньшей мере, части остающегося фторсодержащего соединения; и
введение в реактор в качестве фторсодержащего соединения в условиях введения второго фторсодержащего соединения.
14. Способ по п.4, где альфа-оксид алюминия находится в форме формованного элемента.
15. Способ по п.4 или 5, где альфа-оксид алюминия состоит из пластинок.
16. Способ повышения прочности при раздавливании формованного пористого элемента, состоящего из пластинок альфа-оксида алюминия, включающий способ по любому из пп.1-3 или 10-13, дополнительно включающий обработку формованного пористого элемента, содержащего альфа-оксид алюминия, путем нагревания при температуре выше чем 1000°С в атмосфере воздуха.
17. Катализатор для получения олефина, содержащий серебро и один или несколько промоторов, нанесенных на формованные пористые элементы по пп.1-3, модифицированный альфа-оксид алюминия по п.4 или 5, носитель по п.6 или 7 или подвергнутый тепловой обработке формованный пористый элемент по п.16.
18. Способ получения продуктов алкиленоксида, включающий контактирование в паровой фазе алкена с кислородом или кислородсодержащим газом в присутствии катализатора по п.17, причем контактирование проводят в технологических условиях, достаточных для производства алкиленоксида.
19. Способ получения этиленгликоля, этаноламина или простого эфира этиленгликоля, включающий превращение этиленоксида, полученного способом по п.18.
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CA2667980A1 (en) 2008-05-08
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EP2620212A3 (en) 2014-01-15
CN103101943B (zh) 2015-10-07
CA2667980C (en) 2016-06-14
CN101534938B (zh) 2012-12-26
US20100056816A1 (en) 2010-03-04
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