Synthesis and Characterization of Boehmites Obtained from Gibbsite in Presence of Different Environments
AUTOR(ES)
Denigres Filho, Ricardo Wilson Nastari, Rocha, Gisele de Araujo, Montes, Célia Regina, Vieira-Coelho, Antonio Carlos
FONTE
Mat. Res.
DATA DE PUBLICAÇÃO
15/04/2016
RESUMO
In this study, results related to boehmite synthesis by hydrothermal processes starting from a Bayer commercial gibbsite are reported. The processes have been conducted from aqueous suspensions with initial acidic or alkaline pH, without or with acetate ion, at 160oC for 72h to 168h. The final materials were characterized by X-ray diffraction (XRD), thermal methods (DTA and TGA) and scanning electron microscopy (SEM). The influence of the synthesis conditions on the morphology of the boehmite crystals obtained from the gibbsite at different hydrothermal processes are discussed.
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