Intermediate Aluminophosphates as a Tool of Control over the Morphology and Secondary Porous Structure of AlPO4-11

被引：0
|
作者：
Agliullin, M. R. [1 ]
Kutepov, B. I. [1 ]
机构：
[1] Russian Acad Sci IPC RAS, Inst Petrochem & Catalysis, Ufa Fed Res Ctr, Ufa 450075, Russia
来源：
PETROLEUM CHEMISTRY | 2021年 / 61卷 / 08期
关键词：
zeolites; aluminophosphate molecular sieve AlPO4-11; intermediate phases; micro/mesoporous materials; nanocrystals; SILICOALUMINOPHOSPHATE MOLECULAR-SIEVES; IONOTHERMAL SYNTHESIS; CRYSTALLIZATION; SAPO-11; HYDROISOMERIZATION; ZEOLITES; 1-BUTENE; METHANOL; ACIDITY; FILMS;
D O I：
10.1134/S0965544121080016
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
The paper investigates the effects of the aging of an initial aluminophosphate gel on the formation of intermediate phases and their subsequent crystallization into an AlPO4-11 molecular sieve. It was demonstrated that intermediate aluminophosphates can be deliberately formed either as amorphous or layered phases by varying, from 20 to 140 degrees C, the holding temperature of the aluminophosphate gel with the following composition: 1.0Al(2)O(3)center dot 1.0P(2)O(5)center dot 1.0DPA center dot 50H(2)O. The choice of the intermediate aluminophosphate was shown to be a factor of control over the AlPO4-11 morphology and over the characteristics of the secondary porous structure. The paper further suggests the mechanism of AlPO4-11 formation depending on the intermediate phase nature.
引用
收藏
页码：825 / 835
页数：11
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