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Unformatted text preview: o C in a continuous countercurrent system with pure 1,1,2trichloroethane to obtain a raffinate containing 10 wt% acetone. Using equilateral ternary diagram from Problem 1 , determine the following: (a) the minimum flow rate of solvent, (b) the number of stages required for a solvent rate equal to 1.5 times the minimum, (c) the flow rate and composition of both the raffinate leaving the last stage and extract leaving the first stage, and (d) the flow rate and composition of the raffinate leaving the second stage. Problem 3. (20 Points) For the conditions of Problem 2, find the number of stages required for the separation using a McCabeThiele diagram. Plot the operating line for the extractor on the McCabeThiele diagram for the condition of minimum solventtofeed ratio. [Hint: Read section 8.4 of Seder and Henley to see how the McCabeThiele diagram is related to the equilateral triangle diagram.]...
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 Winter '08
 Pines
 pH

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