Separation of ethylene glycol and water
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The ethylene glycol content is about 80%, the water content is about 19%, and the rest are various impurities! Currently, I am using a rotary evaporator with an oil bath to remove water, but tests still show that 6% water remains! I would like to ask everyone if there is any method to purify ethylene glycol to 99% purity. Please give me some advice!
Does this process require online measurement of water content?
Using a distillation column, the heating temperature at the bottom of the column is controlled at 170–180°C, and the reflux ratio is maintained at around 1
If it’s 100L per day, there’s no point in processing it; it’s not cost-effective to use equipment for that amount