![]() The simulation results showed that to get a distillate containing at least 99.5 mass% acetone, a solvent-to-feed ratio of 1.4, a reflux ratio of 1.5, a number of stages of 30, a feed stage of 26, a solvent stage of 10, and a solvent temperature of 298.15 K were required. The characteristics of the process are designed and simulated via Aspen Plus. In this work, extractive distillation was applied to separate the binary azeotropic system of acetone and n-heptane in wastewater using butyl propionate as a solvent. The extractive distillation process with a high boiling solvent is commonly utilized to separate the azeotropes in the industry to minimize waste, reuse resources, achieve clean production, and preserve the environment. ![]() Under atmospheric conditions, the mixture of these compounds creates a minimum-boiling azeotrope. ![]() Acetone and n-heptane are common solvents in the pharmaceutical industry and they have been found in wastewater. ![]()
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