Key Stages in the Formation of AlPO4-11 via the Crystallization of a Boehmite-Based Aluminophosphate Gel Full article
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Catalysis in Industry
ISSN: 2070-0504 , E-ISSN: 2070-0555 |
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| Output data | Year: 2019, Volume: 11, Number: 2, Pages: 87-94 Pages count : 8 DOI: 10.1134/S2070050419020028 | ||||||
| Tags | aluminophosphate AlPO4-11; boehmite; crystallization; n-paraffin hydroisomerization; zeolites | ||||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Russian Science Foundation | 18-73- 00007 |
Abstract:
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.
Cite:
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 OpenAlex
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 OpenAlex
Original:
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 OpenAlex
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 OpenAlex
Dates:
| Published print: | Apr 1, 2019 |
| Published online: | Jun 25, 2019 |
Identifiers:
| Web of science: | WOS:000472891400001 |
| Scopus: | 2-s2.0-85068002513 |
| Elibrary: | 41696570 |
| OpenAlex: | W2955457886 |