Serviços Personalizados
Journal
Artigo
Indicadores
- Citado por SciELO
- Acessos
Links relacionados
- Citado por Google
- Similares em SciELO
- Similares em Google
Compartilhar
Tecciencia
versão impressa ISSN 1909-3667
Resumo
DELGADO TOBON, Arnoldo Emilio e RODRIGUEZ, Esperanza. Synthesis of mono di tri acetyl glycerols from glycerin technical degree. Tecciencia [online]. 2020, vol.15, n.29, pp.23-30. Epub 19-Maio-2021. ISSN 1909-3667. https://doi.org/10.18180/tecciencia.2020.29.3.
Mono, di, tri acetyl glycerols (MDTAG) were synthesized from technical grade glycerin , as an alternative for the use of glycerol generated by the biodiesel industry. The esterification, was done using molar ratio (acetic acid: glycerin 1:6), at laboratory scale, toluene was added as a dragging agent to periodically remove the water of the reaction. Ion exchange resin was used as a heterogeneous catalyst. MDTAG were characterized using infrared spectroscopy (FT-IR). The low temperature behavior was analyzed by means of differential scanning calorimetry (DSC). MDTAG obtained experimentally showed excellent performance at temperatures below 0 °C. This result makes MDTAG potentially considered as additives to improve the low-temperature fluidity of biolubricant bases (from modified vegetable oils).
Palavras-chave : mono di tri acetyl glycerol; acetylation; calorimetry; spectroscopy.