Mechanochemical Synthesis of Lithium Pentaaluminate from Lithium Carbonate and Boehmite

— It has been shown that mechanical activation of a boehmite + lithium carbonate mixture with an Al : Li atomic ratio of 5 : 1 in an AGO-2 planetary activator at a centrifugal acceleration of 40 g and milling times from 1 to 10 min and subsequent heat treatment of the mechanically activated mixture...

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Bibliographic Details
Published in:Inorganic materials 2020-05, Vol.56 (5), p.466-472
Main Authors: Eremina, N. V., Isupov, V. P.
Format: Article
Language:English
Subjects:
Boehmite
Chemistry
Chemistry and Materials Science
Heat treatment
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Lithium
Lithium carbonate
Materials Science
Synthesis
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Summary:— It has been shown that mechanical activation of a boehmite + lithium carbonate mixture with an Al : Li atomic ratio of 5 : 1 in an AGO-2 planetary activator at a centrifugal acceleration of 40 g and milling times from 1 to 10 min and subsequent heat treatment of the mechanically activated mixture for 2 h at 900°C ensure the formation of fine-particle phase-pure lithium pentaaluminate with a specific surface area from 15 to 25 m 2 /g. We consider a scheme of the processes involved in the mechanically stimulated thermal synthesis of lithium pentaaluminate.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168520050027