This work explores an alternative to convert methyl acetate back to acetic acid (raw materials of PVA plant), methyl acetate (MeAc) hydrolysis.
Methyl acetate was the major and primary product; acetic acid was formed as a minor product.
In the context of the production of n-butyl acetate, acetic acid or ethyl acetate from methyl acetate, a pervaporation module was employed in order to retrofit the extractive distillation unit used to recover methyl acetate from a methanol/methyl acetate industrial waste stream.
Among the four species involved in the process, methyl acetate is the most volatile component, while methanol, water and acetic acid boil at higher temperatures.
Methyl acetate and water are produced by the esterification of methanol with acetic acid.
The equation for the reaction of methyl acetate and water isCH3COOCH3 aq) + H2O l) → CH3COOH aq) + CH3OH aq).
The cases are hydrolysis of methyl acetate, transesterification of methyl acetate and esterification of adipic acid.
Freshly distilled methyl acetate (8.6 mL, 0.11 mol) was added.
Methyl formate, acetonitrile and methyl acetate are used as LSs.
In the same manner, using the correlation for methyl acetate, the ester isomers, methyl acetate and ethyl formate, are compared.
Therefore, when methanol is available, methyl acetate combines with methanol to generate the minimum boiling azeotrope, which is of lower purity with respect to methyl acetate.
