Examples of direct esterification of polyglycerol with fatty acids in the presence of acids or bases
The refined glycerol 500kg and NaOH (5kg) aqueous solution were stirred and mixed evenly. The water was removed by heating and steaming. Under the protection of inert gas, the condensation reaction was carried out by heating and stirring at 260 C, and the generated water was removed at any time. The degree of polymerization of…