Patent ID: 9126967
Filing Date: 2015-09-08
Classification: C07D

Abstract:
1. A process for producing a dioxolane compound, said process comprising the steps of: a)—in a reaction vessel, reacting a crude glycerol and an aldehyde or a ketone with a molar ratio of aldehyde:glycerol or ketone:glycerol from 3:1 to 20:1, b)—allowing decantation, then separating solids, the remaining liquid fraction presenting a light phase and a heavy phase; c)—removing salt from said heavy phase, the remaining portion thereof being optionally returned to the reaction vessel; d)—subjecting said light phase to distillation to separate the dioxolane compound from said ketone or said aldehyde, being optionally recycled to the reaction vessel; and e)—subjecting the obtained dioxolane compound from step d) to a further distillation to remove water.