Acetic acid in water is to be removed using pure isopropyl ether as solvent. The operation is at 20°C and 1 atm (see figure provided for equilibrium). The feed is 0.45 weight fraction acetic acid and 0.55 weight fraction water. Feed flow rate is 2000 kg/h. A countercurrent system is used. An extract stream that is 0.20 weight fraction acetic acid and a raffinate that is 0.20 weight fraction acetic acid are desired.   What is the solvent flow rate required?  How many equilibrium stages are required?  What are the tie-lines and plait point?

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Principal Quantities and EOS

A physical quantity represents the physical state of a system. It is expressed as the product of a number and unit. The basic quantities used in science are length, mass, and time. The principal quantities are the quantities that are independent of other quantities.