Solvent used in extractive distillation

Related MCQs

• Polar organic compounds are normally used as separating agents for the azeotropic and extractive distillation. Which of the following is the most important factor to be considered for the choice of the separating agent for extractive distillation?
• Solvent used in extractive distillation
• In extractive distillation, solvent is
• In a liquid-liquid extraction, 10 kg of a solution containing 2 kg of solute C and 8 kg of solvent A is brought into contact with 10 kg of solvent B. Solvent A and B are completely immiscible in each other whereas solute C is soluble in both the solvents. The extraction process attains equilibrium. The equilibrium relationship between the two phases is Y* = 0.9X, where Y* is the kg of C/kg of B and X is kg of C/kg of A. Choose the correct answer.
• Compound A is extracted from a solution of A + B into a pure solvent S. A Co-current unit is used for the liquid-liquid extraction. The inlet rate of the solution containing A is 200 moles of B/hr.m2 and the solvent flow, rate is 400 moles of S/m2 . hr. The equilibrium data is represented by Y = 3X2 , where Y is in moles of a A/moles of B and X is in moles A/moles of S. The maximum percentage extraction achieved in the unit is
• Selectivity of the solvent used in solvent extraction should be
• If the amount of the steam used in steam distillation is increased, the temperature of distillation
• In case of __________ distillation, a solvent is added to alter the relative volatility of the mixture to be separated.
• The commonly used solvent in supercritical extraction is
• The solvent used in liquid extraction should not have high latent heat of vaporisation, because