A good solvent used for absorption should not have very high

Related MCQs

• 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.
• Selectivity of the solvent used in solvent extraction should be
• The solvent used in liquid extraction should not have high latent heat of vaporisation, because
• 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
• Which of the following is an undesirable characteristic for the solvent used in gas absorption?
• Absorption factor, for a fixed degree of absorption from a fixed amount of gas should be
• The individual mass transfer co-efficients (moles/m2 s) for absorption of a solute from a gas mixture into a liquid solvent are, KL = 4.5 and KG = 1.5. The slope of the equilibrium line is 3. Which of the following resistance (s) is (are) controlling?
• Separation of a mixture of two gases by absorption in the liquid solvent depends upon the difference in their
• To increase the absorption factor, (where, G = gas flow rate, S = solvent flow rate)
• With increase in solvent rate, the number of transfer units, NtoG, for a fixed degree of absorption from a fixed amount of gas