This study proposes a chemical alternative to the energy-intensive fractional distillation of N, N-dimethylaniline (DMA). By leveraging the reactivity of the impurity N-methyl aniline (NMA) with acetyl chloride, we converted a difficult-to-separate impurity into a value-added byproduct, N-methyl acetanilide. The process achieved a final DMA purity of 99.97%, reduced power consumption by 13%, and eliminated steam usage and organic aqueous waste.
