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Specialty Chemistry Forums => Chemical Engineering Forum => Topic started by: patblue on April 27, 2019, 11:02:58 PM

Title: Separating Ethyl Acetate and N-propyl acetate
Post by: patblue on April 27, 2019, 11:02:58 PM

Hello Everyone!

In our factory, we have been using a distiller with a vaccum in order to extract solvents from different liquids. This extracted solvent has a mixture of 54% Ethyl Acetate, 42% N-propyl Acetate and 4% other liquids.

We found that Ethyl Acetate has a boiling point of 77.1°C while N-propyl Acetate's boiling point is 101.5°C. We figured that we might be able to separate the two liquids using the distiller at temperatures between 80-90°C but unable to do so. We would like to ask if there is a better way of separating the two in order to get 100% ETAC and 100% NPAC, or at least close to 100%.

I would like to apologize as none of the people here including me are chemists, and I am unsure if this is the correct forum to ask this.

Title: Re: Separating Ethyl Acetate and N-propyl acetate
Post by: chenbeier on April 28, 2019, 07:27:45 AM

The both components build an zeotropic mixture and are not able to seperate with destillation.

http://vle-calc.com/azeotrope.html?numOfC=2&compnames=1&Comp1=6&Comp2=106&Comp3=2

https://en.wikipedia.org/wiki/Azeotrope

Probably you can find an entrainer.