Читать книгу Handbook of Biomass Valorization for Industrial Applications - Группа авторов - Страница 72

The acidification of crude glycerol is followed by the removal of methanol which was used in excess for high biodiesel yield. The surplus methanol is dispersed between crude glycerol and methyl ester which is having serious health and environmental hazards. This surplus methanol and water are removed by vacuum evaporation at 50–90 °C for 2 h.