What are the distillation methods for the dehydration of ethyl acetate?
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What are the distillation methods for the dehydration of ethyl acetate? Azeotropic distillation? Extraction distillation: How do they carry it out specifically? Please share your experience, or any better methods you know
Check the required level of dehydration; if the moisture content requirement is not high, proceed with azeotropic distillation. After the azeotrope at the top of the tower condenses, it separates into layers – the ester phase is recycled while the water phase is removed. The product at the bottom of the tower is ethyl acetate. However, if it contains other components, it becomes more troublesome.
Could the original poster provide more detailed data? That would make it easier to suggest a solution.
It depends on the ratio of water to ethyl acetate; even in the case of an azeotrope, there is an azeotrope composition, and azeotropic distillation is possible around the azeotrope temperature
If the water content is below 15%. Distillation of the two at atmospheric pressure. After condensation, it enters two water separators. The lower layer is water, and the upper layer is ethyl acetate; after several hours of full reflux, most of the water can be separated out. If the content does not meet the standards, it is possible to use the method of repeated distillation; after several such distillations, the water content in ethyl acetate can be reduced to below 0.05. I’m into distillation; we still have a small amount of ethanol. 3-membered ring azeotrope. If you don’t understand, contact me on QQ 293075 to progress together.
Can extractive distillation be carried out using ethylene glycol as the extractant?
I happened to encounter this problem too; I studied * it
If there is free water, phase separation is first carried out taking advantage of its low solubility; then, as mentioned on page 5, azeotropic distillation is performed. After the azeotrope at the top of the tower condenses, phase separation occurs again – the ester phase is recycled while the water phase is removed. The product at the bottom of the tower is ethyl acetate.
After stratification, does the aqueous phase contain a certain amount of ethyl acetate? Is it necessary to carry out steam distillation as well?
I also ran into this problem and learned *!
Hello, I am currently working with intermittent distillation equipment as well: distillation reactors, distillation columns, condensers, and water separators. How can I reduce the water content in ethyl acetate from 0.4% to below 0.1%?