cyclohexanone was used as an extraction solvent and methanol as a precipitant agent. it is needed to separate these two solvents. do you think the solvent evaporation method would work or another method must be applied?
Thank you
The boiling temperatures are very different. The distillation could work.
Cyclohexanone is only slightly soluble in water. Metanol mixes with water at any ratio. Extract the methanol using small amount of water.
In oposite- some solvents like n-hexane will extract only cyclohexanone.
Distill./rectification also can be a solution.
Regards
GB
I agree with Yurii V. Geletii.
Try this: Separation Science and Technology 52(3):1-8
This article deals with the separation of methanol and cyclohexane, but it brings some ideas of how to improve it. It can be applied for your system.
You can check below (*) data for the heterogeneous azeotrope formed by cyclohexanone and water (95.0 ºC; 92.0 wt% cyclohexanone for the upper layer). Methanol does not form azeotrope with water. This suggests that steam stripping (steam injection distillation) can be used to efficiently remove methanol (< 95.0 ºC), while cyclohexanone could, in principle, be recovered with 8 wt% water (but essentially methanol-free) as the upper layer of the decanted bottoms.
(*) http://www.homepages.ed.ac.uk/jwp/Chemeng/azeotrope/hetero.html#other
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