[化學]
Water layer (wt%) isopropyl ether(wt%)
acetic acid water isopropyl ether acetic acid water isopropyl ether
0 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 97.1
13.3 84.4 2.3 4.82 1.9 93.3
25.5 71.1 3.4 11.4 3.9 84.7
36.7 58.9 4.4 21.6 6.9 71.5
44.3 45.1 10.6 31.1 10.8 58.1
46.4 37.1 16.5 36.2 15.1 48.7
題目:
Pure water is to be used to extract acetic acid from 400kg of a feed solution
containing 25 wt% acetic acid in isopropl ether.Use equilibrium data from
Appendix A.3.
a. If 400kg of water is used,calculate the percent recovery in the water
solution in a one-stage process.
b.If a multiple three-stage system is used and133.3kg fresh water is used in
each stage,calculate the overall percent recovery of the acid in
the total outlet water.
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