3. A two-stage chemical process is used to purify acetic acid produced as a byproduct of cellulose-acetate manufacture. A feed stream containing 22.0 wt.-% acetic acid and the remainder water is fed to a liquid-liquid extraction column at a rate of 500 kg/min. 1.175 kg/min of solvent containing water and ethyl acetate is used to extract 99.8% of the acetic acid from the feed, and the raffinate contains 0.05 wt.-% acetic acid. The extract stream from the liquid-liquid extraction column is fed to a distillation column, where all of the acetic acid is removed in the bottoms product, which is 99.0 wt.-% acetic acid. The ratio of reflux to condensed distillate leaving the column is 3. Draw and completely label the process flow diagram, and write equations for any process specifications using the notation provided on the diagram