Question

numbered. Make sure that all pages of the assignment Complete the assignment cover accurately and in detail. Question 1 A solution of acetone in water is required to be extracted at 25 °C in a continuous, c current extraction system. Pure 1, 1, 2-trichloroethane will be used to extract the acetone fr the water 1 000 kgh of a 45 mass% acetone-water solution enters the extraction systema raffinate containing 10 mass% acetone leaves the system. Use the ternary diagrams provided Figure 1 to answer the following questions: Please hand in the diagrams with your assignment Additional information: a. The data for the tie lines for the system is provided in Table 1: Table 1: Tie line data for system Acetone mass fraction Extract, Acetone mass fraction 0.44 0.29 0.12 0.56 0.40 0.18 1.1. Determine the minimum amount of solvent required for the process 1.2. De (15) (15) (15) [45 Marks] termine the number of stages required for a solvent rate equal to 1.5 times minimum. 1.3. Determine the flowrates and composition of each stream leaving each stage.

Answer 1