Made available in DSpace on 2016-08-29T15:35:42Z (GMT). No. of bitstreams: 1 tese_9761_Bruno Henrique Arpini.pdf: 7901693 bytes, checksum: 5935e86ed8124854681614cf8c933ef5 (MD5) Previous issue date: 2016-03-30O presente estudo tem como objetivo obter novas metodologias de obtenção de biodiesel etílico e metílico a partir de três diferentes compostos de nióbio atuando como catalisadores em reações de transesterificação, são eles: pentóxido de nióbio, pentacloreto de nióbio e oxalato amoniacal de nióbio. Vários parâmetros como, temperatura, tempo de reação, proporção em massa dos catalisadores, sistema reacional (refluxo e banho de ultrassom) foram variados a fim de se obter as melhores condições para a obtenção de biodiesel. Sabe-se por v...
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