What is the separation efficiency of ethyl acetate and water using a stripping tower?
Thread Content
This post was last edited by slayerstar on 2011-2-19 at 11:21. Ethyl acetate and water reach an azeotrope at 70°C; using a conventional distillation tower it is not possible to obtain ethyl acetate of high purity. If a stripping tower is used, with steam supplied directly to the bottom of the tower and a mixture of ethyl acetate and water fed to the top, will this method yield better results than a distillation tower? Thank you!
It depends on their respective vapor pressures; a large amount of water and some ethyl acetate evaporate from the top of the tower, which renders separation ineffective. Generally speaking, stripping towers are more commonly used for the primary treatment of wastewater
The poster can determine whether the azeotropic ratio of ethyl acetate and water can meet the desired purity level.
Our unit also uses this device, and the results are good
It is recommended to use 3-component azeotropic distillation. Direct steam heating is not intended for separation purposes; it can be used to lower the boiling point of high-boiling-point organic compounds~ That’s quite challenging
The original poster can try using azeotropic distillation
We just want to increase the content of ethyl acetate a bit, and then send it for purification, as there may be other organic solvents present. I’m wondering whether a stripping tower can break down the azeotropic mixture of ethyl acetate and water Thank you all for your help.
I think it’s still okay; we’ve had similar gas lift operations before
This might not work; gases don’t seem to have much effect on their azeotropic composition
The stripping tower cannot alter the azeotrope composition; it can only concentrate the feed. Since it has only a stripping section, the concentration effect is moderate, but energy consumption is low.