Synthesis of Fine-Crystalline SAPO-11 Zeolites and Analysis of Their Physicochemical and Catalytic Properties

Synthesis of Fine-Crystalline SAPO-11 Zeolites and Analysis of Their Physicochemical and Catalytic Properties

Results of crystallization of two 1.0Al 2 O 3 ⋅ 1.0P 2 O 5 ⋅ 0.4SiO 2 ⋅ 1.0DPA ⋅ 50H 2 O silicoaluminophosphate gels are compared; the gels are synthesized using pseudoboehmite in one case and aluminum isopropoxide in the other. It is shown that the choice of aluminum source significantly affects th...

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Veröffentlicht in:Kinetics and catalysis 2020-07, Vol.61 (4), p.654-662
Hauptverfasser: Agliullin, M. R., Faizullin, A. V., Khazipova, A. N., Kutepov, B. I.
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum
Caprolactam
Catalysis
Chemistry
Chemistry and Materials Science
Crystallization
Cyclohexanone
Gels
Isomerization
Phase composition
Physical Chemistry
Properties (attributes)
Zeolites
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Zusammenfassung:Results of crystallization of two 1.0Al 2 O 3 ⋅ 1.0P 2 O 5 ⋅ 0.4SiO 2 ⋅ 1.0DPA ⋅ 50H 2 O silicoaluminophosphate gels are compared; the gels are synthesized using pseudoboehmite in one case and aluminum isopropoxide in the other. It is shown that the choice of aluminum source significantly affects the phase composition of the resulting silicoaluminophosphate gels and the physicochemical properties of SAPO-11 samples crystallized from the gels and their catalytic properties in the vapor-phase isomerization of cyclohexanone oxime to caprolactam.
ISSN:0023-1584
1608-3210
DOI:10.1134/S0023158420040011