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Question 1 (4 marks) A solvent stream containing 10.0 wt% acetone and 90.0 wt% chloroform (C) is used to extract acetone (A) from water (B) from a feed containing 55.0 wt% acetone and 5.0 wt% chloroform with the remainder being water. The feed flow rate is 400 kg/h and the solvent flow rate is 600 kg/h. Operation is at 25°C and atmospheric pressure. The phase equilibrium data are listed in the table below. (1) Plot the given equilibrium data using the equilateral triangular diagram. (1 mark) (2) Find the extract and raffinate compositions and flow rates when one equilibrium stage is used for the separation. (3 marks) Acetone 0 15.8 25.6 36.0 49.3 55.7 Equilibrium data for the system acetone-chloroform-water at 25°C and 1 atm Water Phase (wt%) Chloroform Phase (wt%) Water 99.19 82.97 73.11 62.29 45.6 34.5 Chloroform 0.81 1.23 1.29 1.71 5.1 9.8 Acetone 0 28.7 42.1 52.7 61.3 61 Water 0.5 1.3 2.2 4.4 10.3 18.6 Chloroform 99.5 70.0 55.7 42.9 28.4 20.4

Question 1 (4 marks) A solvent stream containing 10.0 wt% acetone and 90.0 wt% chloroform (C) is used to extract acetone (A) from water (B) from a feed containing 55.0 wt% acetone and 5.0 wt% chloroform with the remainder being water. The feed flow rate is 400 kg/h and the solvent flow rate is 600 kg/h. Operation is at 25°C and atmospheric pressure. The phase equilibrium data are listed in the table below. (1) Plot the given equilibrium data using the equilateral triangular diagram. (1 mark) (2) Find the extract and raffinate compositions and flow rates when one equilibrium stage is used for the separation. (3 marks) Acetone 0 15.8 25.6 36.0 49.3 55.7 Equilibrium data for the system acetone-chloroform-water at 25°C and 1 atm Water Phase (wt%) Chloroform Phase (wt%) Water 99.19 82.97 73.11 62.29 45.6 34.5 Chloroform 0.81 1.23 1.29 1.71 5.1 9.8 Acetone 0 28.7 42.1 52.7 61.3 61 Water 0.5 1.3 2.2 4.4 10.3 18.6 Chloroform 99.5 70.0 55.7 42.9 28.4 20.4

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Question 1 (4 marks) A solvent stream containing 10.0 wt% acetone and 90.0 wt% chloroform (C) is used to extract acetone (A) from water (B) from a feed containing 55.0 wt% acetone and 5.0 wt% chloroform with the remainder being water. The feed flow rate is 400 kg/h and the solvent flow rate is 600 kg/h. Operation is at 25°C and atmospheric pressure. The phase equilibrium data are listed in the table below. (1) Plot the given equilibrium data using the equilateral triangular diagram. (1 mark) (2) Find the extract and raffinate compositions and flow rates when one equilibrium stage is used for the separation. (3 marks) Acetone 0 15.8 25.6 36.0 49.3 55.7 Equilibrium data for the system acetone-chloroform-water at 25°C and 1 atm Water Phase (wt%) Chloroform Phase (wt%) Water 99.19 82.97 73.11 62.29 45.6 34.5 Chloroform 0.81 1.23 1.29 1.71 5.1 9.8 Acetone 0 28.7 42.1 52.7 61.3 61 Water 0.5 1.3 2.2 4.4 10.3 18.6 Chloroform 99.5 70.0 55.7 42.9 28.4 20.4
Transcribed Image Text:Question 1 (4 marks) A solvent stream containing 10.0 wt% acetone and 90.0 wt% chloroform (C) is used to extract acetone (A) from water (B) from a feed containing 55.0 wt% acetone and 5.0 wt% chloroform with the remainder being water. The feed flow rate is 400 kg/h and the solvent flow rate is 600 kg/h. Operation is at 25°C and atmospheric pressure. The phase equilibrium data are listed in the table below. (1) Plot the given equilibrium data using the equilateral triangular diagram. (1 mark) (2) Find the extract and raffinate compositions and flow rates when one equilibrium stage is used for the separation. (3 marks) Acetone 0 15.8 25.6 36.0 49.3 55.7 Equilibrium data for the system acetone-chloroform-water at 25°C and 1 atm Water Phase (wt%) Chloroform Phase (wt%) Water 99.19 82.97 73.11 62.29 45.6 34.5 Chloroform 0.81 1.23 1.29 1.71 5.1 9.8 Acetone 0 28.7 42.1 52.7 61.3 61 Water 0.5 1.3 2.2 4.4 10.3 18.6 Chloroform 99.5 70.0 55.7 42.9 28.4 20.4
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