In the industrial ABE (acetone-butanol-ethanol) fermentation process, anaerobic bacteria produce a liquid mixture containing acetone (boiling point 56 ∘C56\,^{\circ}\text{C}56∘C), ethanol (boiling point 78 ∘C78\,^{\circ}\text{C}78∘C), and butanol (boiling point 117 ∘C117\,^{\circ}\text{C}117∘C) dissolved in water.
Suggest a physical separation technique that can be used to obtain pure acetone from this liquid mixture.
