Elementary Principles 236 - 6.91 a. Basis: 100 g feed 40 g...

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6- 70 6.91 a. Basis : 100 g feed 40 g acetone, 60 g H O. 2 A = acetone, H = n - C H 61 4 , W = water 40 g A 60 g W 100 g H 25°C 100 g H r 1 (g A) 60 g W 75 g H 25°C 75 g H r 2 (g A) e 1 (g A) 60 g W e 2 (g A) xx A in H phase A in W phase /. = 0343 x mass fraction = bg Balance on A stage 1: Equilibrium condition stage 1: g acetone g acetone −= + + + = U V | W | = = 40 100 60 0 343 27 8 12 2 11 1 1 er rr ee e r . . . Balance on A stage 2: Equilibrium condition stage 2: g acetone g acetone + + + = U V | W | = = 27 8 75 60 0 343 72 20 6 22 2 2 . . . . r e % acetone not extracted = 20 6 100% 515% . . g A remaining 40 g A fed b. Balance on A stage 1: Equilibrium condition stage 1: g acetone g acetone + + + = U V | W | = = 40 0 175 60 0343 17 8 22 2 1 1 . . . . r e % acetone not extracted = 22 2 100% 555% . . g A remaining
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This note was uploaded on 02/27/2012 for the course CHEMICAL E 312 taught by Professor Cheung during the Fall '11 term at The University of Akron.

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