Key Stages in the Formation of AlPO4-11 via the Crystallization of a Boehmite-Based Aluminophosphate Gel Научная публикация
Журнал |
Catalysis in Industry
ISSN: 2070-0504 , E-ISSN: 2070-0555 |
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Вых. Данные | Год: 2019, Том: 11, Номер: 2, Страницы: 87-94 Страниц : 8 DOI: 10.1134/S2070050419020028 | ||||||
Ключевые слова | aluminophosphate AlPO4-11; boehmite; crystallization; n-paraffin hydroisomerization; zeolites | ||||||
Авторы |
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Организации |
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Информация о финансировании (1)
1 | Российский научный фонд | 18-73- 00007 |
Реферат:
Abstract: The staged crystallization of aluminophosphate AlPO4-11 from a commercially available aluminum source based on boehmite is studied for the first time by means of X-ray diffraction, 27Al and 31P magic-angle spinning nuclear magnetic resonance, low-temperature nitrogen adsorption–desorption, and scanning election microscopy. It is shown that the synthesis of AlPO4-11 proceeds via the formation of an intermediate phase based on crystalline aluminophosphate with a layered structure. It is found that AlPO4-11 with a high degree of crystallinity and phase purity forms in 6–24 h at 200°C. Lengthening the time of crystallization at 200°C to more than 48 h results in the transformation of AlPO4-11 into nonporous cristobalite. The results can be used to develop means for directional control of the phase purity and degree of crystallinity of commercially important silicoaluminophosphate molecular sieves SAPO-11 with desired properties. These can be used as a base for the synthesis of promising domestic catalysts for the commercial hydroisomerization of higher n-paraffins. © 2019, Pleiades Publishing, Ltd.
Библиографическая ссылка:
Agliullin M.R.
, Khairullina Z.R.
, Faizullin A.V.
, Petrov A.I.
, Badretdinova A.A.
, Talzi V.P.
, Kutepov B.I.
Key Stages in the Formation of AlPO4-11 via the Crystallization of a Boehmite-Based Aluminophosphate Gel
Catalysis in Industry. 2019. V.11. N2. P.87-94. DOI: 10.1134/S2070050419020028 WOS Scopus РИНЦ
Key Stages in the Formation of AlPO4-11 via the Crystallization of a Boehmite-Based Aluminophosphate Gel
Catalysis in Industry. 2019. V.11. N2. P.87-94. DOI: 10.1134/S2070050419020028 WOS Scopus РИНЦ
Оригинальная:
Аглиуллин М.Р.
, Хайруллина З.Р.
, Файзуллин А.В.
, Петров А.И.
, Бадретдинова А.А.
, Талзи В.П.
, Кутепов Б.И.
Основные стадии формирования AlPO4-11 при кристаллизации алюмофосфатного геля, приготовленного с использованием бемита
Катализ в промышленности. 2018. Т.18. №6. С.6-13. DOI: 10.18412/1816-0387-2018-6-6-13 РИНЦ
Основные стадии формирования AlPO4-11 при кристаллизации алюмофосфатного геля, приготовленного с использованием бемита
Катализ в промышленности. 2018. Т.18. №6. С.6-13. DOI: 10.18412/1816-0387-2018-6-6-13 РИНЦ
Даты:
Опубликована в печати: | 1 апр. 2019 г. |
Опубликована online: | 25 июн. 2019 г. |
Идентификаторы БД:
Web of science | WOS:000472891400001 |
Scopus | 2-s2.0-85068002513 |
РИНЦ | 41696570 |
OpenAlex | W2955457886 |