A feed mixture containing 50 wt% n-heptane and 50 wt% methyl cyclohexane (MCH) is to be separated by liquid-liquid extraction into one product containing 92.5 wt% methylcyclohexane and another containing 7.5 wt% methylcyclo- hexane. Aniline will be used as the solvent. (a) What is the minimum number of theoretical stages necessary to effect this separation? (b) What is the minimum extract reflux ratio? (c) If the reflux ratio is 7.0, how many theoretical contacts will be required? Liquid-liquid equilibrium data for the system n-heptane-methy! cyclohexane-aniline at 25°C and at 1 atm (101 kPa) Hydrocarbon Layer Solvent Layer Weight percent MCH, solvent- free basis Pounds aniline/ pound solvent- free mixture Weight percent MCH, solvent- free basis Pounds aniline/ pound solvent- free mixture

A feed mixture containing 50 wt% n-heptane and 50 wt% methyl cyclohexane (MCH) is to be separated by liquid-liquid extraction into one product containing 92.5 wt% methylcyclohexane and another containing 7.5 wt% methylcyclo- hexane. Aniline will be used as the solvent. (a) What is the minimum number of theoretical stages necessary to effect this separation? (b) What is the minimum extract reflux ratio? (c) If the reflux ratio is 7.0, how many theoretical contacts will be required? Liquid-liquid equilibrium data for the system n-heptane-methy! cyclohexane-aniline at 25°C and at 1 atm (101 kPa) Hydrocarbon Layer Solvent Layer Weight percent MCH, solvent- free basis Pounds aniline/ pound solvent- free mixture Weight percent MCH, solvent- free basis Pounds aniline/ pound solvent- free mixture

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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An aqueous solution of propanone (acetone, 1) of total volume 0.120 mL was analysed by quantitative 1H NMR, using the CH protons of (E)-butenedioic acid (fumaric acid, 2) to provide an internal standard. A stock solution of 2 with concentration = 10.00 x 10-3 mol L-1 was prepared by dissolving pure solid 2 in deuterium oxide (D2O). The solution of 1 was mixed with a 0.400 mL aliquot of the stock solution of 2 and the 400 MHz 1H NMR spectrum of the mixture was recorded (see Table 2 below).