Abstract—
We have examined the feasibility of mechanochemically stimulated thermal synthesis of lithium monoaluminates from a boehmite + lithium carbonate mixture with the use of a semicommercial scale ball mill. The effect of mechanical pretreatment of the mixture of boehmite and lithium carbonate on the solid-state reaction between them has been studied using thermogravimetry, in situ X-ray diffraction, room-temperature X-ray diffraction, specific surface area measurements, and particle size analysis. The results demonstrate that mechanical pretreatment of such a mixture with an Al : Li atomic ratio of 1 : 1 in a semicommercial ball mill at a vial rotation rate of 120 rpm for 58 h, followed by heat treatment in air for 4 h at 950°C, allows phase-pure gamma-lithium aluminate to be prepared.
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This work was supported by the Russian Federation Ministry of Science and Higher Education, project no. АААА-А17-117030310278-3.
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Eremina, N.V., Borodulina, I.A. Feasibility of Mechanochemically Stimulated Thermal Synthesis of Lithium Monoaluminates from AlO(OH) + Li2CO3 Mixtures. Inorg Mater 57, 720–726 (2021). https://doi.org/10.1134/S0020168521070062
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DOI: https://doi.org/10.1134/S0020168521070062