1,1,2-trichloroethane - acetone solution containing 42% acetone by weight at a flow rate of 1200 kg/h will be extracted in a countercurrent multistage extraction system with water at a flow rate of 2100 kg/h at 25°C. The water is not pure and contains 2% by weight of 1.1.2-trichloroethane. Since acetone in the raffinate phase is not to exceed 5% by weight; a. The amount and composition of the extract and raffinate phase, b. The percent recovery of acetone, c. Calculate the theoretical number of steps required. Extract Phase I Refinate Phase 1,1,2- 1.1.2- acetone water acetone water trichloroethane trichloroethane 0.0596 0.0052 0.9352 0.0875 0.9093 0.0032 0.1704 0.0073 0.8223 0.2514 0.7376 0.0110 0.2692 0.0102 0.7206 0.3852 0.5921 0.0227 0.3088 0.0117 0.6795 0.4297 0.5392 0.0311 0.3573 0.0160 0.6267 0.4821 0.4753 0.0426 0.4090 0.0210 0.5700 0.5395 0.4000 0.0605 0.4605 0.0375 0.5020 0.5740 0.3370 0.0890 0.5178 0.0652 0.4170 0.6034 0.2626 0.1340

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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1,1,2 - trichloroethane - acetone solution containing 42% acetone by weight at a flow rate of 1200
kg/h will be extracted in a countercurrent multistage extraction system with water at a flow rate of
2100 kg/h at 25°C. The water is not pure and contains 2% by weight of 1.1.2-trichloroethane Since
acetone in the raffinate phase is not to exceed 5% by weight;
a. The amount and composition of the extract and raffinate phase,
b. The percent recovery of acetone,
c. Calculate the theoretical number of steps required.
Extract Phase
Refinate Phase
1,1,2-
trichloroethane
1,1,2-
acetone
water
acetone
water
trichloroethane
0.0596
0.0052
0.9352
0.0875
0.9093
0.0032
0.1704
0.0073
0.8223
0.2514
0.7376
0.0110
0.2692
0.0102
0.7206
0.3852
0.5921
0.0227
0.3088
0.0117
0.6795
0.4297
0.5392
0.0311
0.0426
0.0605
0.0890
0.3573
0.0160
0.6267
0.4821
0.4753
0.4090
0.0210
0.5700
0.5395
0.4000
0.4605
0.0375
0.5020
0.5740
0.3370
0.5178
0.0652
0.4170
0.6034
0.2626
Transcribed Image Text:1,1,2 - trichloroethane - acetone solution containing 42% acetone by weight at a flow rate of 1200 kg/h will be extracted in a countercurrent multistage extraction system with water at a flow rate of 2100 kg/h at 25°C. The water is not pure and contains 2% by weight of 1.1.2-trichloroethane Since acetone in the raffinate phase is not to exceed 5% by weight; a. The amount and composition of the extract and raffinate phase, b. The percent recovery of acetone, c. Calculate the theoretical number of steps required. Extract Phase Refinate Phase 1,1,2- trichloroethane 1,1,2- acetone water acetone water trichloroethane 0.0596 0.0052 0.9352 0.0875 0.9093 0.0032 0.1704 0.0073 0.8223 0.2514 0.7376 0.0110 0.2692 0.0102 0.7206 0.3852 0.5921 0.0227 0.3088 0.0117 0.6795 0.4297 0.5392 0.0311 0.0426 0.0605 0.0890 0.3573 0.0160 0.6267 0.4821 0.4753 0.4090 0.0210 0.5700 0.5395 0.4000 0.4605 0.0375 0.5020 0.5740 0.3370 0.5178 0.0652 0.4170 0.6034 0.2626
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