Question 2. 200 kg/hr of a liquid mixture of 40:60 acetone-water solution is to be treated with pure 1,1,2-trichloroethane (TCE) at 25C by a continuous countercurrent extraction. Weight % in water layer Weight % in trichloroethane layer TCE Water Acetone TCE Water Acetone 0.52 93.52 5.96 90.93 0.32 8.75 0.73 82.23 17.04 73.76 1.10 25.14 1.02 72.06 26.92 59.21 2.27 38.52 1.17 67.95 30.88 53.92 3.11 42.97 1.60 62.67 35.73 47.53 4.26 48.21 2.10 57.00 40.90 40.00 6.05 53.95 3.75 50.20 46.05 33.70 8.90 57.40 6.52 41.70 51.78 26.26 13.40 60.34 (a) Plot the triangular diagram showing the tie lines (b) If only one settler-mixer is used with 50 kg of solvent (TCE) (i) What is the % recovery of acetone? (ii) If a raffinate composition of 10% acetone can be obtained in one stage, what solve rate enables this? (c) If the final extract has a composition of 45% acetone and its amount is 100 kg/hr. (i) What is the number of stages? (ii) What is the amount of solvent feed? (iii) What is the final raffinate composition? (d) What would be the minimum solvent rate for the same XAN found in part c?