Study on synthesis technology of ethylene glycol sodium by sodium hydroxide method

Using diethylene glycol and sodium hydroxide as raw materials,synthesis technology on diethlyene glycol sodium in common pressure was studied to adopt xylene as reaction solvent.Many effecting factors were observed by experiment,such as molar ratio of reaction raw materials,reaction temperature,reaction time,the type and amount of solvent,and so on.The suitable conditions of reaction technology are: the molar ratio of diethylene glycol and sodium hydroxide is 3~5 ∶1,reaction temperature is 100~180℃,reaction time for 4.0 hours,the convert ratio is over 90%.