Question

uIC. What per- equilibrium data from Appendix A.3. 358 kg, x 0.715, xc1= 0.03, V= 442 kg, YAI 0.11, yc = 0.86, 34.7% removed. Ans. L -3. Single-Stage Extraction with Unknown Composition. A feed mixture weighing 200 kg of unknown composition containing water, acetic acid, and isopropyl ether is con- tacted in a single stage with 280 kg of a mixture containing 40 wt % acetic acid, 10 wt % water, and 50 wt % isopropyl ether. The resulting raffinate layer weighs 320 kg and contains 29.5 wt % acetic acid, 66.5 wt % water, and 4.0 wt % isopropyl ether. Deter- mine the original composition of the feed mixture and the composition of the result- ing extract layer. Use equilibrium data from Appendix A.3. xAO 0.032, x 0 = 0.948, yA1= 0.15 Ans. Extraction of Acetone in a Single Stage. A mixture weighing 1000 kg contains Acetic Acid-Water-Isopropyl Ether System, Liquid-Liquid 1-24 Equilibria at 293 K or 20°C Water Layer (wt %) Isopropyl Ether Layer (wt %) Acetic Acid Isopropyl Ether Water Isopropyl Ether Acetic Acid Water 98.8 1.2 0 0.6 99.4 0.69 98.1 1.2 0.18 0.5 99.3 1.41 97.1 1.5 0.37 0.7 98.9 2.89 95.5 1.6 0.79 0.8 98.4 6.42 91.7 1.9 1.93 1.0 97.1 13.30 84.4 2.3 4.82 1.9 93.3 25.50 71.1 11.40 84.7 3.4 3.9 4.4 21.60 6.9 58.9 71.5 36.70 58.1 31.10 10.8 45.1 10.6 44.30 15.1 48.7 16.5 36.20 37.1 46.40 Source: Trans. A.I. Ch.E., 36, 601, 628 (1940). With permission.

Answer 1

Soludtion Civen مسييملا ODT ks feed S a extrading solution Acefic ocid = 46 % with Compoitian lo . waten Tsopropyl cthen so 7. Rafinad Jayer R= 320 Acctis aid 25.5 = Waten 6 6.S Topnopyi ethey Extxa Let (sPE) ExMa dor equi i bium draw duagram a re Nou unth Than mayk o given C Comporitien exhsad ginc oinatt ard equiluibrium Egives Jie una R.E P'nd سمو thu Cemposition exto

Raffinate 29.5% Acetic acid and 4% isoproprl ether 45 40 35 Tie Lines R 30 25 Extract Point 20 15 10 5 :Oa 100 90 80 70 60 50 40 30 20 10 Wt. % of isopropyl ether Wt. % of Acetic acid, x and y 9

tind drom pnt or wt oAceh'c auid in cxfrad - go ut. sopoy ethe in extred Balanc Nouo To tal exracur On E t R 200 28o -120 A cetic a cid Now balon + O.40X 280 O.1x160 + O.295 X 32o 24- 94.4 - I2.o F= 6-4 6.4 2-O o Wreight tadian f Arehe Acid (XAp)e O.032 n fe

ether balanG isopropy Now O. Oy X310 O.8 x 160 O. So x 280 F 12. 8 - l28 200) 2oo O.OO weigh Jrachion c Acehc acjd and Tsopopy! ehen in cnipna Peed Acehc Aad O.032 O.004 wate, O964 Extrat Acetic acid ^^ Alo arciput ochinof JA E Alody olwofrd um Aidg va m frit C