RU2017125266A - Способ получения молекулярного сита - Google Patents
Способ получения молекулярного сита Download PDFInfo
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- RU2017125266A RU2017125266A RU2017125266A RU2017125266A RU2017125266A RU 2017125266 A RU2017125266 A RU 2017125266A RU 2017125266 A RU2017125266 A RU 2017125266A RU 2017125266 A RU2017125266 A RU 2017125266A RU 2017125266 A RU2017125266 A RU 2017125266A
- Authority
- RU
- Russia
- Prior art keywords
- mordenite
- zeolite
- primary
- source
- surface area
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims 3
- 239000002808 molecular sieve Substances 0.000 title 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title 1
- 229910021536 Zeolite Inorganic materials 0.000 claims 19
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims 19
- 229910052680 mordenite Inorganic materials 0.000 claims 19
- 239000010457 zeolite Substances 0.000 claims 19
- 239000000203 mixture Substances 0.000 claims 8
- 239000013078 crystal Substances 0.000 claims 7
- 238000000034 method Methods 0.000 claims 5
- 230000015572 biosynthetic process Effects 0.000 claims 4
- 238000003786 synthesis reaction Methods 0.000 claims 4
- 238000006243 chemical reaction Methods 0.000 claims 3
- 239000003153 chemical reaction reagent Substances 0.000 claims 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 2
- 229910052782 aluminium Inorganic materials 0.000 claims 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 2
- 238000001354 calcination Methods 0.000 claims 2
- 150000002894 organic compounds Chemical class 0.000 claims 2
- 239000011148 porous material Substances 0.000 claims 2
- 239000002994 raw material Substances 0.000 claims 2
- 229910052710 silicon Inorganic materials 0.000 claims 2
- 239000010703 silicon Substances 0.000 claims 2
- HWCKGOZZJDHMNC-UHFFFAOYSA-M tetraethylammonium bromide Chemical compound [Br-].CC[N+](CC)(CC)CC HWCKGOZZJDHMNC-UHFFFAOYSA-M 0.000 claims 2
- 229940073455 tetraethylammonium hydroxide Drugs 0.000 claims 2
- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 claims 2
- NIUZJTWSUGSWJI-UHFFFAOYSA-M triethyl(methyl)azanium;chloride Chemical compound [Cl-].CC[N+](C)(CC)CC NIUZJTWSUGSWJI-UHFFFAOYSA-M 0.000 claims 2
- JAJRRCSBKZOLPA-UHFFFAOYSA-M triethyl(methyl)azanium;hydroxide Chemical compound [OH-].CC[N+](C)(CC)CC JAJRRCSBKZOLPA-UHFFFAOYSA-M 0.000 claims 2
- 238000010306 acid treatment Methods 0.000 claims 1
- 229910052783 alkali metal Inorganic materials 0.000 claims 1
- -1 alkali metal cation Chemical class 0.000 claims 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims 1
- 239000011260 aqueous acid Substances 0.000 claims 1
- 239000003054 catalyst Substances 0.000 claims 1
- 239000012084 conversion product Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000005342 ion exchange Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 229910001388 sodium aluminate Inorganic materials 0.000 claims 1
- 238000005406 washing Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
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- C01B39/26—Mordenite type
- C01B39/265—Mordenite type using at least one organic template directing agent
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- C07C2529/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- C07C2529/18—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type
- C07C2529/20—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type containing iron group metals, noble metals or copper
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Claims (18)
1. Цеолит морденит, содержащий внутри пор направляющий реагент для формирования структуры (НРС), выбранный из группы, включающей ТЭА, МТЭА и их смеси, обладающий площадью поверхности мезопор, равной более 30 м2/г, и содержащий агломераты, состоящие из первичных кристаллитов, где первичные кристаллиты обладают средним размером первичных кристаллов, определенным с помощью ТЭМ, равным менее 80 нм.
2. Цеолит морденит по п. 1, в котором первичные кристаллиты обладают средним размером первичных кристаллов по каждому вектору a, b и с кристалла, определенным с помощью рентгенографии, равным менее 80 нм.
3. Цеолит морденит по п. 1 или 2, в котором по данным анализа с помощью ТЭМ не менее 90% первичных кристаллитов обладают размером первичных кристаллов, равным менее 80 нм.
4. Цеолит морденит по любому предыдущему пункту, в котором указанные первичные кристаллиты обладают аспектным отношением, определенным с помощью ТЭМ, равным менее 2, где аспектное отношение определено, как наибольшее измерение кристаллита, деленное на ширину кристаллита, где ширина кристаллита определена, как измерение кристаллита в середине этого наибольшего измерения в направлении, перпендикулярном этому наибольшему измерению.
5. Цеолит морденит по любому предыдущему пункту, обладающий площадью поверхности мезопор, равной более 40 м2/г.
6. Цеолит морденит по любому предыдущему пункту, в котором отношение площади поверхности мезопор к полной площади поверхности равно более 0,05.
7. Прокаленный цеолит морденит, полученный путем прокаливания цеолита морденита по любому из пп. 1-6, прокаленный цеолит морденит обладает площадью поверхности мезопор, равной более 30 м2/г, и содержит агломераты, состоящие из первичных кристаллитов, где первичные кристаллиты обладают средним размером первичных кристаллов, определенным с помощью ТЭМ, равным менее 80 нм.
8. Подвергнутый последующей обработке цеолит морденит, полученный путем обработки паром и/или кислотой прокаленного цеолита морденита по п. 7, в котором молярное отношение Si:Al2 больше или равно 50.
9. Способ получения цеолита морденита по любому из пп. 1-6, включающий:
a) получение смеси для синтеза, содержащей источник кремния, источник алюминия, гидроксид щелочного металла (М), источник направляющего реагента для формирования структуры (НРС), выбранный из группы, включающей ТЭА, МТЭА и их смеси, необязательные затравочные кристаллы и воду, указанная смесь для синтеза обладает составом, описывающимся следующими молярными отношениями:
b) кристаллизацию указанной смеси для синтеза, которая включает нагревание смеси для синтеза при температуре, находящейся в диапазоне, составляющем от 100 до 160°С, с получением кристаллов цеолита морденита, содержащего внутри пор направляющий реагент для формирования структуры (НРС).
10. Способ по п. 9, в котором источником кремния является осажденный диоксид кремния.
11. Способ по п. 9 или 10, в котором источником алюминия является раствор алюмината натрия или раствор сульфата алюминия.
12. Способ по любому из пп. 9-11, в котором источник НРС выбран из группы, включающей тетраэтиламмонийбромид (ТЭА-Br), тетраэтиламмонийгидроксид (ТЭА-ОН), метилтриэтиламмонийхлорид (МТЭА-Cl), метилтриэтиламмонийгидроксид (МТЭА-ОН) и их смеси.
13. Способ получения прокаленного цеолита морденита по п. 7 или 8, который включает стадии i) обработки цеолита морденита по любому из пп. 1-6 путем ионного обмена для удаления катиона щелочного металла М+ и затем ii) прокаливания цеолита морденита при температуре, большей или равной 500°С, в течение промежутка времени, равного не менее 1 ч.
14. Способ получения подвергнутого последующей обработке цеолита морденита по п. 8, который дополнительно включает стадию деалюминирования, включающую введение во взаимодействие цеолита морденита с паром при температуре не ниже 200°С, в течение не менее 1 ч и затем промывку водным раствором кислоты.
15. Способ превращения сырья, содержащего органическое соединение, в продукт превращения, который включает стадию проводимого при условиях превращения органического соединения введения во взаимодействия указанного сырья с катализатором, содержащим цеолит морденит по любому из пп. 1-8.
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SG11201705830RA (en) | 2017-08-30 |
ES2750826T3 (es) | 2020-03-27 |
CN107207269A (zh) | 2017-09-26 |
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