10.42. Liquidliquid extraction with methanol. A mixture of cyclohexane and cyclopentane is to be separated by liquidliquid extraction at 25C with methanol. Phase equilibria for this system may be predicted by the NRTL equations. Calculate product rates and compositions and interstage flow rates and compositions for the conditions in Figure 10.41 with 1, 2, 5, and 10 equilibrium stages.

412 Chapter 10 Equilibrium-Based Methods for Multicomponer Extract Feed Ibmol/h Cyclohexane Cyclopentane 700 300 25 C N Solvent Ibmol/h Methanol 1000 Figure 10.41 Data for Exercise 10.42. Raffinate Liquid-Liquid Extraction Problems 10.42. Liquid-liquid extraction with methanol. A mixture of cyclohexane and cyclopentane is to be separated by liquid-liquid extraction at 25C with methanol. Phase equilibria for this system may be predicted by the NRTL or equations. Calculate product rates and compositions and interstage flow rates 412 Chapter 10 Equilibrium-Based Methods for Multicomponent Absorption, Stripping, Distillation, and Extraction Extract and compositions for the conditions in Figure 10.41 with 1, 2, 5, and 10 equilibrium stages