Use Table A.3-24. for Acetic Acid-Water-Isopropyl Ether System at 20 degrees Celsius from Geankoplis

2. Acetic acid is to be extracted from 2340kg/hr of a 44% aqueous solution by countercurrent extraction with 3570kg/hr of isopropyl ether containing 1.0% acetic acid. The concentration is to be reduced to 8% in the exit (a) How many ideal stages are required to reduce the acetic acid concentration to 8% ? raffinate. (b) Calculate \% recovery of acetic acid. (c) Determine the minimum solvent rate