Feed solution F is contacted with solvent B in an extraction process. Carrier liquid in the feed is A and the solute is C. The ternary diagram depicting a single ideal stage extraction is given below. The dashed lines represent the tie-lines.
The CORRECT option(s) is/are
Feed solution F is contacted with solvent B in an extraction process. Carrier liquid in the feed is A and the solute is C. The ternary diagram depicting a single ideal stage extraction is given below. The dashed lines represent the tie-lines.
The CORRECT option(s) is/are
Show Hint
- For the tie-lines shown, concentration of solute in the extract is higher than that in the raffinate
- Maximum amount of solvent is required if the mixture composition is at W
- Y represents the composition of extract when minimum amount of solvent is used
- U represents the raffinate composition if the mixture composition is at M
The Correct Option is A, C, D
Solution and Explanation
[4pt] (B) False: Point W lies near the middle of the binodal curve; it does not require the maximum solvent. Point P (far right) generally demands more solvent.
[4pt] (C) True: Y lies on a tie-line corresponding to minimum solvent usage because it is closer to the feed line, minimizing phase separation shift.
[4pt] (D) True: When the feed composition is at M, the raffinate composition corresponds to U on the same tie-line.
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