In extractive distillation, solvent is_____________________?
Correct answer: A. Added to alter the relative volatility of the mixture
- A. Added to alter the relative volatility of the mixture
- B. Of high volatility
- C. Present in overhead stream
- D. Of high viscosity to give high tray efficiency
Explanation
The solvent in extractive distillation is added to change the relative volatility of the components, allowing difficult separations. It is generally a high-boiling solvent that leaves mainly with the bottoms rather than the overhead stream.
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