Síntesis de mono di tri acetil gliceroles a partir de glicerina grado técnico
Mono, di, tri acetil gliceroles (MDTAG) fueron sintetizados a partir de glicerina grado técnico, como alternativa de aprovechamiento para el glicerol generado por la industria del biodiesel. La esterificación a escala de laboratorio, se hizo utilizando ácido acético en relación molar 1/6 (glicerina/a. acético), se añadió tolueno como agente de arrastre para eliminar periódicamente el agua producida durante la reacción. Se utilizó resina de intercambio iónico como catalizador heterogéneo. MDTAG fueron caracterizados utilizando espectroscopía de infrarrojo (FT-IR). El comportamiento a baja temperatura fue analizado por medio de calorimetría diferencial de barrido (DSC). MDTAG obtenidos por vía experimental presentaron excelente desempeño a temperaturas inferiores a 0 ºC. Este resultado permite considerar a los MDTAG como potenciales aditivos para mejorar la fluidez a bajas temperaturas de bases biolubricantes (obtenidas a partir de aceites vegetales modificados).
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