Abstract: This invention relates to aprocess for the preparation of glycerolcarbonate from the reaction of glycerol and a dialkyl-carbonate, for example dimethyl carbonate, or a cyclic alkylene carbonate. More specifically, the invention relates to a process where the synthesis of glycerolcarbonate is conducted in the presence of a homogeneous transesterificationcatalyst and involves the partial reaction of a glycerol reactant stream and a dialkyl carbonateor cyclic alkylene carbonate reactant stream and an intermediate step of alcohol by-product separation before further reaction in order to improve glycerol conversion and glycerol carbonate selectivity and yield.