Preparation of Mesoporous γ-Al2O3 from Aluminum Hydroxide Peptized with Organic Acids

The relationships of the formation of aluminum oxide from aluminum hydroxide peptized with organic acids (propionic, maleic, malonic, tartaric) were studied. The pore structure parameters of the hydroxide samples and of aluminum oxide samples obtained from them are strongly influenced by acid peptiz...

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Bibliographic Details
Published in:Russian journal of applied chemistry 2017-12, Vol.90 (12), p.1961-1968
Main Authors: Tregubenko, V. Yu, Udras, I. E., Belyi, A. S.
Format: Article
Language:English
Subjects:
Aluminum
Aluminum hydroxide
Aluminum oxide
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Colloiding
Helium
Industrial Chemistry/Chemical Engineering
Organic acids
Porosity
Production of New Materials
Pycnometry
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Summary:The relationships of the formation of aluminum oxide from aluminum hydroxide peptized with organic acids (propionic, maleic, malonic, tartaric) were studied. The pore structure parameters of the hydroxide samples and of aluminum oxide samples obtained from them are strongly influenced by acid peptization. The nature of the acid influences the extent of defectiveness of the γ-Al 2 O 3 structure, manifested in the density of aluminum oxide, measured by helium pycnometry. The possibility and conditions for preparing mesoporous γ-Al 2 O 3 suitable for use in chemical and petrochemical processes were determined.
ISSN:1070-4272
1608-3296
DOI:10.1134/S1070427217120102