Question

6.90. Benzene and hexane are being considered as solvents to extract acetic acid from aqueous mixtures At 30°C, distribution coefficients for the two solvents are KB-0.098 mass fraction acetic acid in benzene/mass traction acetic acid in water and KH 0017 mass fraction acetic acid in hexane mass fraction acetic acid in water (a) Based on the distribution coefficients only, which of the two solvents would you use and why? Demonstrate the logic of your decision by comparing the quantities of the twosolvents required to reduce the acetic acid content in 100 kg of an aqueous solution from 30 wt% to 10 wt%. other factors may be important in choosing between benzene and cyclohexane?

Answer 1

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30- o.o98 Mu derolton lo X100 oka adn 20 O.o8 20 o MB O.093 For Heiane kH MH MH 200 MH 65 Oiol :. Bonzere s bott syent S he guantey of heone gensed s mae nve Lsmas he

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