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Physico-chemical characterization and thermal analysis data of alumina waste from Bayer process |
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| Authors: | M I Yoshida V R Silva P C C Pinto S S Sant’Anna M C Silva C F Carvalho |
| Institution: | 1. Departamento de Qu??mica, Universidade Federal de Minas Gerais, CP 702, Belo Horizonte, 31270-901, MG, Brazil 2. Departamento de Qu??mica, Instituto Federal de Educa??o, Ci??ncia e Tecnologia de Minas Gerais, Ouro Preto, 35400-000, MG, Brazil 3. Engenharia de Materiais, Universidade Federal de Itajub??, Itabira, 35900-373, MG, Brazil 4. Departamento de Qu??mica, Universidade Federal de Ouro Preto, Ouro Preto, 35400-000, MG, Brazil |
| Abstract: | In the aluminum industries, there are several steps involved in processing since the extraction of bauxite to obtain the final product (Al). During the development of these, various steps generated wastes. One of them, from the electrostatic filter of the calcination step of the Bayer process is a very fine black powder, rich in alumina (Al2O3) that does not meet industry specifications, and it is discarded in the industry yard. Alumina is a noble material and has high commercial value. This black powder has great prospects for recovery, recycling, and future applications. Therefore, it is important to perform characterization of tailings and to do that we have used XRD, SEM, EDS, FTIR, Raman, and thermal analysis. |
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