Abstract
ABSTRACT The separation of a ternary mixture containing methyl methacrylate (MMA)-methanol-water is challenging owing to MMA forming a ternary azeotrope with methanol and water. Herein, water was employed as a single solvent extractant, but the MMA purity is only 99.7%. We examine an energy-saving process for the separation of MMA using water and n-hexane as a double extractant solvent in order to separate the ternary mixture. The results show that compared with the n-hexane single solvent extractant system, our method reduces energy consumption by 56.9%, and the total annual cost is reduced by 56.1%.
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